Levy et al. (2012)

May 13, 2019

 

EBP THERAPY ANALYSIS

Treatment Groups

Note: Scroll about two-thirds of the way down the page to read the summary of the procedures.

Key:

AAPS =  Arizona Articulation Proficiency Scale

C = Clinician

EBP = evidence-based practice

LSVT = Lee Silverman Voice Treatment

NA = not applicable

P = Patient or Participant

pmh =  Patricia  Hargrove, blog developer

SLP = speech–language pathologist

WNL = within normal limits

SOURCE: Levy, E. S., Ramig, L. O., & Camarata, S. M. (2012).  The effects of two speech interventions on speech function in pediatric dysarthria.Journal of Medical Speech-Language Pathology, 20 (4), 82-87.REVIEWER(S):  pmh

 DATE: May 10, 2019

ASSIGNED GRADE FOR OVERALL QUALITY:   C+  The highest possible grade based on the design of the investigation is B+.  This Assigned Grade for Overall Quality is only concerned with the level of evidence supporting the intervention and is not a judgment of the quality of the intervention or even the investigation.

TAKE AWAY: This preliminary report provides intriguing information suggesting that both Lee Silverman Voice Treatment (LSVT) and Traditional therapy are associated in improvement in articulatory and loudness outcomes for children with dysarthria associated with cerebral palsy.

  

  1. What type of evidence was identified?                                                                                                        
  • What was the type of evidence? Prospective, Nonrandomized Group Design with Controls
  • What was the level of support associated with the type of evidence?Level =  B+                                                                                                    
  1. Group membership determination:
  • If there was more than one group, were participants (Ps) randomly assigned to groups? No
  • If there were groups and Ps were not randomly assigned to groups, were members of groups carefully matched? No, the assignment was based on convenience. Two of the Ps could attend 4 sessions a week; they were assigned to Lee Silverman Voice Treatment (LSVT.) The investigator recruited participants (Ps) who were available.

 

  1. Was administration of intervention status concealed?
  • from participants? No
  • from clinicians? No
  • from analyzer? Varied

                                                                     , 

  1. Were the groups adequately described? Yes

–           How many  Ps were involved in the study?

  • total # of Ps:  3
  • # of groups: 2
  • Names of groups and the # of participants (Ps) in each group:

    – Lee Silverman Voice Treatment (LSVT) = 2  (P1, P2)

     – Traditional Therapy =  1 (P3)

–   CONTROLLED CHARACTERISTICS

  • diagnosis:spastic cerebral palsy (CP) with associated dysarthria

–  DESCRIBED CHARACTERISTICS:

  • age:

      –  P1 =  8 years, 10 months

     –  P2 =  3 years, 3 months

     –  P3  =  9 years, 7 months

  • gender: all Ps were female
  • cognitive skills:

     –  P1 =   not described

     –  P2 =   not described

     –  P3  =  delayed

  • expressive language:

–  P1 =  delay

     –  P2 =  within normal limits (WLN)

     –  P3 = delayed

  • receptive language:

     – P1 = WLN

     –  P2 = WLN

     –  P3 = delayed

  • MLU:

     – P1 = 3.2

     –  P2 =  3.7

     –  P3  = 1.8

  • phonological/articulatory skills:

     –  P1 =  mild dysarthria

     –  P2 = delayed phonology, moderate dysarthria

     –  P3 = moderate dysarthria and apraxia

  • hearing level: all within normal limits

   Were the groups similar before intervention began?  No                                                        

–  Were the communication problems adequately described?  Yes

  • disorder type: all Ps had dysarthria associated with cerebral palsy. Comorbid conditions are listed in the “functional level.”
  • functional level

∞  P1 = mild dysarthria, delayed expressive language, receptive language was WNL

∞ P2 =  moderate dysarthria, receptive and expressive language was WNL, delayed phonology

∞ P3  = moderate dysarthria and apraxia, receptive and expressive language delays, cognitive delay 

 

  1. Was membership in groups maintained throughout the study? Did each of the groups maintain at least 80% of their original members? Yes     Were data from outliers removed from the study? No

  

  1. Were the groups controlled acceptably?  No
  • Was there a no intervention group? No
  • Was there a foil intervention group? No 
  • Was there a comparison group? Yes
  • Was the time involved in the foil/comparison and the target groups constant? No

 

  1. Were the outcomes measure appropriate and meaningful?  Yes
  • OUTCOME #1: Functional communication questionnaire completed by 3 caregivers for each P
  • OUTCOME #2: Articulatory Proficiency Score on the Arizona Articulation Proficiency Scale (AAPS)
  • OUTCOME #3: Listeners’ preferences for pre-intervention versus post-intervention for contrastive words
  • OUTCOME #4: Listeners’ preferences for pre-intervention versus post-intervention for spontaneous speech
  • OUTCOME #5: Listeners’ judgments whether for pre-intervention versus post-intervention contrastive words were easier to understand.
  • OUTCOME #6: Listeners’ judgments whether pre-intervention versus post-intervention spontaneous speech was easier to understand
  • OUTCOME #7: Sound pressure level (SPL) of contrastive words
  • OUTCOME #8: SPL of spontaneous speech

–   The outcome measures that are subjective:

  • OUTCOME #1: Functional communication questionnaire completed by 3 caregivers for each P
  • OUTCOME #2: Articulatory Proficiency Score on the Arizona Articulation Proficiency Scale (AAPS)
  • OUTCOME #3: Listeners’ preferences for pre-intervention versus post-intervention for contrastive words
  • OUTCOME #4: Listeners’ preferences for pre-intervention versus post-intervention for spontaneous speech
  • OUTCOME #5: Listeners’ judgments whether for pre-intervention versus post-intervention contrastive words were easier to understand.
  • OUTCOME #6: Listeners’ judgments whether pre-intervention versus post-intervention spontaneous speech was easier to understand

–  The outcome measures that are objective:

  • OUTCOME #7: Sound pressure level (SPL) of contrastive words
  • OUTCOME #8: SPL of spontaneous speech

                                        

  1. Were reliability measures provided?
  • Interobserver for analyzers?  No
  • Intraobserver for analyzers?No
  • Treatment fidelity for clinicians? No

 

  1. What were the results of the statistical (inferential) testing and/or the description of the results?

Summary Of Important Results

—  What level of significance was required to claim significance?  NA, only descriptive statistics were provided.

PRE AND POST TREATMENT ONLY ANALYSES

  • OUTCOME #1: Functional communication questionnaire completed by 3 caregivers for each P – All the caregivers reported that “their” child/student/relative had positive functional outcomes.

 

  • OUTCOME #2: Articulatory Proficiency Score on the Arizona Articulation Proficiency Scale (AAPS) – The Articulatory Proficiency Score on the AAPS increased for all Ps, although P2 remained in the unintelligible range. 

 

  • OUTCOME #3: Listeners’ preferences for pre-intervention versus post-intervention for contrastive words – Blinded listeners preferred post- intervention contrastive words for all Ps. 

 

  • OUTCOME #4: Listeners’ preferences for pre-intervention versus post-intervention for spontaneous speech – Blinded listeners preferred post- intervention spontaneous speech for all Ps. 

 

  • OUTCOME #5: Listeners’ judgments whether for pre-intervention versus post-intervention contrastive words were easier to understand. — Blinded listeners judged post- intervention contrastive words to be “easier to understand” for all Ps.

 

  • OUTCOME #6: Listeners’ judgments whether pre-intervention versus post-intervention spontaneous speech was easier to understand. — Blinded listeners judged post- intervention spontaneous speech to be “easier to understand” for all Ps.

 

  • OUTCOME #7: Sound pressure level (SPL) of contrastive words—SPL increased in post-intervention contrastive words for all Ps.

 

  • OUTCOME #8: SPL of spontaneous speech—SPL increased in post-intervention spontaneous speech only for P1 and P2 (the 2 Ps who had received LVST).

–   What was the statistical test used to determine significance?   NA, only descriptive statistics were used.

–  Were confidence interval (CI) provided?  No

 

  1. What is the clinical significanceNA

 

  1. Were maintenance data reported? No

 

  1. Were generalization data reported?  Yes
  • For the LSVT Ps (P1, P2), the clinician (C) targeted generalization outside the clinic room.
  • For the LSVT Ps (P1, P2), progress in any outcome not concerned with loudness could be considered generalization.
  • For the Traditional Therapy P (P3), it is clear that any of the outcomes could be considered generalizations, with the possible exception of those concerned with spontaneous speech.

 

  1. Describe briefly the experimental design of the investigation.
  • Three children with dysarthria associated with cerebral palsy participated in the investigation. They were assigned to interventions based on their availability to attend treatment 4 times a week for 4 weeks (i.e., the LSVT group).
  • P1 and P2 were assigned to LSVT intervention while P3 was assigned the Traditional intervention. It should be noted that P3 was reported to exhibit markedly more comorbid impairment than did P1 and P2.
  • All Ps were subjected to identical 2 pre-assessment sessions and 1 post assessment session.
  • For the most part, judges/raters were blinded to the treatment status of the Ps.
  • The results of the assessments were descriptively analyzed.

 

ASSIGNED OVERALL GRADE FOR QUALITY OF EXTERNAL EVIDENCE: C+

 

SUMMARY OF INTERVENTION

 

PURPOSE: to explore the effectiveness of Lee Silverman Voice Treatment and Traditional therapy on the speech of children with cerebral palsy.

POPULATION:  Cerebral Palsy; Children

MODALITY TARGETED:  Production

ELEMENTS/FUNCTIONS OF PROSODY TARGETED:  Loudness 

ELEMENTS OF PROSODY USED AS INTERVENTION:  Loudness

OTHER ASPECTS OF LANGUAGE/COMMUNICATION TARGETED:  articulation, intelligibility

OTHER TARGETS:  perceived satisfaction

DOSAGE:

  • LSVT:  four 50 – 60 minute sessions, 4 times a week, for 4 weeks, daily homework (10 minutes) and carryover activities.
  • Traditional Therapy:  two 50 minutes session, 2 times a week, for 4 weeks

ADMINISTRATOR:

  • LVST: an SLP with LSVT trainingTraditional Therapy:  2 master’s SLP students supervised by the SLP who provided LVST intervention

MAJOR COMPONENTS:

  • There were 2 interventions:LSVT and Traditional Therapy

LSVT

  • The clinician (C) adapted LSVT LOUD for adults to the needs of children.
  • C used motivational games.
  • Treatment “core” exercises included

–  focusing on healthy loudness and increasing cognitive demand

–  providing feedback on loudness

–  producing functional phrases

–  targeting generalization outside the clinic

TRADITIONAL THERAPY

 • This intervention was child-directed and was based on a protocol developed by Pennington et al. (2010)

 

•. Major components included discussing

–  “posture,

–  speech clarity,

–  monitoring of speech,

–  breathing at the start of exhalation for simple phrases,

–  activities involving stress and intensity regulation, and

–  breath control.”  (p. 83.)


Watson (2016)

July 25, 2018

SECONDARY REVIEW CRITIQUE

KEY:

C = clinician

f =  female

m =  male

MIT = Melodic Intonation Therapy

NA = not applicable

P = patient or participant

pmh = Patricia Hargrove, blog developer

SLP = speech-language pathologist

SR = Systematic Review

 

 

Source:  Watson, S. (2016). Melodic Intonation Therapy: The influence of pitch and rhythm on therapy outcomes.   Retrieved from https://www.uwo.ca/fhs/lwm/teaching/EBP/2015_16/Watson.pdf  July 16, 2018

 

Reviewer(s):  pmh

 

Date:  July 23, 2108

 

Overall Assigned Grade:  C+The highest Overall Assigned Grade is B which is based on the design of the investigation. The Overall Assigned Grade represents the quality of the evidence supporting the intervention. It does not reflect a judgment about the quality of the intervention.

 

Level of Evidence:  B

 

Take Away:  The purpose of this critical review was to compare the importance rhythm and pitch for successful application of Melodic Intonation Therapy (MIT.) The investigator identified only 3 sources that met inclusion criterion. Nevertheless, preliminary impressions indicate that both traditional MIT and Rhythmic Therapy resulted in improvement of trained phrases/sentences immediately following therapy. In addition, in one source indicated that traditional MIT was superior to Rhythmic Therapy for the immediate generalization to untrained targets and to long-term retention of progress for trained targets.

 

What type of secondary review?  Narrative Systematic Review

 

  1. Were the results valid?Yes

 

  • Was the review based on a clinically sound clinical question?

 

  • Did the reviewer clearly describe reasonable criteria for inclusion and exclusion of literature in the review (i.e., sources)?No

 

  • The author of the secondary research noted that she reviewed the following resources: internet based databases 

 

  • Did the sources involve only English language publications?Yes

 

  • Did the sources include unpublished studies? No

 

  • Was the time frame for the publication of the sources sufficient?Unclear

 

  • Did the author of the secondary research identify the level of evidence of the sources? No, but it could be interpreted from the prose.

 

  • Did the author of the secondary research describe procedures used to evaluate the validity of each of the sources?No, but it could be derived from the review.

 

  • Was there evidence that a specific, predetermined strategy was used to evaluate the sources?Yes

 

  • Did the author of the secondary research or a review teams rate the sources independently? No,there was only a single reviewer.

 

  • Were interrater reliability data provided?No

 

  • If there were no interrater reliability data, was an alternate means to insure reliability described? No

 

  • Were assessments of sources sufficiently reliable? Unclear, reliability data were not provided.

 

  • Was the information provided sufficient for the reader to undertake a replication?Yes

 

  • Did the sources that were evaluated involve a sufficient number of participants? No

 

  • Were there a sufficient number of sources?No,only 3 sources were identified.

 

 

  1. Description of outcome measures:

 

STAHL et al. (2013) investigation:

  • Outcome #1:  Percentage of correct syllables (articulatory quality)

 

WILSON et al. (2006) investigation:

  • Outcome #2: Recall and production of sentences

 

ZUMBANSEN

  • Outcome #3:  Percent correct syllables

 

 

 

  1. Description of results:

 

–  What measures were used to represent the magnitude of the treatment/effect size?  No measure of the magnitude of the treatment effect/effect size were reported

 

–   Summarize overall findings of the secondary research:

  • This critical review investigated the relative importance of the rhythm and pitch components of MIT.

 

  • The author employed Narrative Systemic Review methodology using broad criteria (i.e., sources reviewed by the investigator included case studies and control studies with small numbers and/or nonrandomized group assignment) and reliability data were not provided.

 

  • Only 3 sources met inclusion criteria involving a total of 19 participants (Ps.)

 

  • The sources compared different treatments:

–  Traditional MIT with pitch and rhythm components (all 3 sources)

– Rhythmic Therapy –  a derivation of MIT in which P spoke the phrases rhythmically with natural prosody but no singing/chanting (all 3 sources)

– Traditional Speech Therapy – P spoke but no pitch/singing or rhythmic components (2 of the sources)

 

  • Overall, the immediate results indicated

– Trained sentences/phrases assessed immediately after termination of therapy indicated that

  • Traditional MIT and Rhythmic Therapy yielded equivocal results but both were significantly better than Traditional Speech Therapy

– Untrained sentences/phrases assessed immediately after termination of therapy indicated that

  • One source reported Traditional MIT and Rhythmic Therapy yielded equivocal results.
  • But the other source reported that Traditional MIT yielded superior results.

 

  • However,maintanence (follow-up) assessments revealed that

– Long term retention of progress for trained sentences/phrases yielded variable outcomes:

  • In one source, Traditional MIT was superior with respect to Long term retention of progress.
  • In another source, there was not a significant difference with respect to Long term retention of progress for the MIT and Rhythmic Therapy.

 

  Were the results precise?  No

 

–  If confidence intervals were provided in the sources, did the reviewers consider whether evaluations would have varied if the “true” value of metrics were at the upper or lower boundary of the confidence interval?Not Applicable (NA) 

 

–  Were the results of individual studies clearly displayed/presented?  Yes

 

–  For the most part, were the results similar from source to source?  Yes

 

–  Were the results in the same direction?  Yes

 

–  Did a forest plot indicate homogeneity? NA 

 

–  Was heterogeneity of results explored?  NA

Yes  _x__     No ___     Unclear/Variable  ___ 

 

–  Were the findings reasonable in view of the current literature?  Yes

 

–  Were negative outcomes noted?  Yes

           

                                                                                                                   

  1. Were maintenance data reported? Yes
  • The focus of the review was whether both rhythm and pitch are required for successful application of MIT.
  • 2 of the 3 interventions explored maintenance.
  • One of the studies determined that both the typical MIT intervention(rhythm and pitch/singing) and the rhythm only conditions yielded long term positive progress.
  • One study determined that the typical MIT intervention(rhythm and pitch/singing) and yielded long term positive outcomes that were superior to the rhythm only condition.

 

 

  1. Were generalization data reported?Yes
  • The focus of the review was whether both rhythm and pitch are required for successful application of MIT.
  • 2 of the 3 investigations explored generalization to untrained stimuli.
  • One of the 2 investigations determined that generalization from trained to untrained phrases resulting from rhythm only and typical MIT conditions were not superior to traditional speech therapy.
  • The other investigation determined that generalization from trained to untrained phrases resulting from rhythm only and typical MIT conditions were superior to traditional speech therapy.
  • One of the investigations explored generalization of trained phrases to connected speech and it was found that both typical MIT and rhythm only conditions were superior to traditional speech therapy.

 

SUMMARY OF INTERVENTION

 

  • Three interventions were described in the Critical Review:

–  Traditional MIT

–  Rhythmic Therapy

–  Traditional Speech Therapy

 

  • Only Traditional MIT and Rhythmic Therapy are summarized below because Traditional Speech Therapy does not include prosodic components.

 

TRADITIONAL MIT

 

Population:  Aphasia (nonfluent, Broca’s); Adults

 

Nonprosodic Targets:  sentence production, articulatory accuracy

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets:  music/singing (pitch and rhythm)

 

Description of Traditional MIT

  • The clinician (C) followed a protocol in which target phrases/sentences were modeled using singing/chanting/intoning and tapping. The protocol involved gradually fading of C’s support and feedback.
  • NOTE: one of the investigations used well-known songs rather than the traditional MIT singing/chanting.

 

Evidence Supporting Traditional MIT

  • All 3 sources reported improvement using Traditional MIT.
  • However, Traditional MIT did not appear to be superior to Rhythmic Therapy for trained phrases/sentence immediately following the termination of intervention.
  • Traditional MIT appeared to be superior in generalization of progress to untrained sentences/phrases and connected speech.
  • Traditional MIT may be superior in maintaining Long Term progress.

 

 

RHYTHMIC THERAPY

 

Population:  Aphasia (nonfluent, Broca’s); Adults

 

Nonprosodic Targets:  sentence production, articulatory accuracy

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets:  rhythm

 

Description of Rhythmic Therapy

  • C followed the MIT protocol but did not sing/chant/intone. Rather, C modeled phrases/sentences using a rhythmic but natural prosody as well as tapping.

 

Evidence Supporting Rhythmic

  • All 3 sources reported immediate improvement in trained phrases using Rhythmic Therapy.

 

Evidence Contraindicating Rhythmic Therapy

  • Traditional MIT was superior to Rhythmic Therapy for

–  generalization of progress to untrained sentences/phrases and connected speech

     –  maintaining Long Term progress

————————————————————————————————————


Kim & Tomaino (2008)

January 29, 2018

EBP THERAPY ANALYSIS

Treatment Groups 

Note: Scroll about one-half of the way down the page to read the summary of the procedure(s).

 Key:

C = Clinician

EBP = evidence-based practice

f = female

m = male

MT = music therapy

NA = not applicable

P = Patient or Participant

pmh = Patricia Hargrove, blog developer

SLP = speech–language pathologist

 

 

SOURCE: Kim, M., & Tomaino, C. M. (2008.) Protocol evaluation for effective therapy for persons with nonfluent aphasia. Topics in Stroke Rehabilitation, 15, 555- 569.

 

REVIEWER(S): pmh

 

DATE: January 26, 2018

 

ASSIGNED GRADE FOR OVERALL QUALITY: C- (The highest possible grade based on the type of evidence is C. The Assigned Grade for Overall Quality is not a judgment regarding the quality of the intervention, it merely evaluates the type of research design and implementation.)

 

TAKE AWAY: Investigators reviewed music therapy (MT) describing the effectiveness of 7 MT techniques for improving articulation, fluency, prosody, and breath support for patients (Ps) with nonfluent aphasia.

 

 

  1. What type of evidence was identified?
  • What was the type of evidence? Qualitative Research involving Multiple Participants

                                                                                                          

  • What was the level of support associated with the type of evidence? Level = C

 

                                                                                                           

  1. Group membership determination:

                                                                                                           

  • If there was more than one group, were participants (Ps) randomly assigned to groups? Not Applicable (NA), there was only one group.

 

 

  1. Was administration of intervention status concealed?
  • from participants? No
  • from clinicians? No
  • from analyzers? No

                                                                    

 

  1. Were the Ps adequately described? Yes

How many Ps were involved in the study?

  • total # of Ps: 7
  • # of groups: 1
  • List names of groups and the # of participants in each group:

 

– CONTROLLED CHARACTERISTICS

  • Diagnosis: Nonfluent Aphasia

 

– DESCRIBED CHARACTERISTICS

  • age: early 50s to early 70s
  • gender: 2m; 5f
  • cognitive skills:
  • 6 of the 7 Ps displayed intact cognitive skils;
  • 1 P had difficulty attending due to drowsiness associated with medications
  • motor skills: 6 of the 7 Ps were right hemiplegic
  • etiology: All Ps had experienced single or multiple strokes in the left hemisphere
  • post onset: 21 months to 21 years
  • social-emotional Status: the mood of the Ps was described as varied
  • comorbid medical issues:
  • chronic bronchitis 1
  • depression 1  
  • hypertension, high blood pressure 5  
  • diabetes 2
  • anemia 2  
  • coronary heart disease 1
  • renal artery stenosis 1  
  • congestive heart failure 1  
  • mild dementia 1

 

– Were the groups similar before intervention began? NA, there was only one group.

                                                         

– Were the communication problems adequately described? Yes

  • disorder type:
  • All Ps diagnosed with nonfluent aphasia.
  • In addition.

∞ 3 Ps were diagnosed with apraxia

∞ 1 P was diagnosed with dysarthria

∞ 2 Ps were diagnosed with dysphagia

∞ 2 Ps were diagnosed with fluent aphasia

∞ 1 P was diagnosed with receptive aphasia

 

  • functional level: severity ranged from mild/moderate to severe

 

 

  1. Was membership in groups maintained throughout the study?
  • Did the group maintain at least 80% of its original members? Yes

                                                               

  • Were data from outliers removed from the study? No

 

 

  1. Were the groups controlled acceptably? NA, there was only one group

 

 

  1. Were the outcomes measure appropriate and meaningful? Yes

 

– OUTCOMES

  • OUTCOME #1: Articulation skills (accuracy rating)

 

  • OUTCOME #2: Fluency (words per utterance)

 

  • OUTCOME #3: Prosody (rating of rhythm and intonation)

 

  • OUTCOME #4: Breath support (number of syllables produced in sustained breath)

 

ALL the outcome measures were subjective.

 

– NONE of the outcome measures that were objective.

                                         

 

  1. Were reliability measures provided?
  • Interobserver for analyzers? No. However, the 66 videotapes were reviewed, described, and analyzed by 3 investigators. The data from these reviews were synthesized.

 

  • Intraobserver for analyzers?   No

 

  • Treatment fidelity for clinicians? NA _x__, the methodology involved a description and evaluation of treatment techniques used in music therapy with Ps with nonfluent aphasia. The purpose was not to investigate the effectiveness of a single program.

 

 

  1. Summary of the description of the results:

 

PRE AND POST TREATMENT ANALYSES

 

  • OUTCOME #1: Articulation skills (accuracy rating)— across music therapy techniques the gains for individual Ps ranged from 5% to 40%

 

  • OUTCOME #2: Fluency (words per utterance) across music therapy techniques the gains for individual Ps ranged from 5% to 65%

 

  • OUTCOME #3: Prosody (rating of rhythm and intonation) across music therapy techniques the gains for individual Ps ranged from 10% to 50%

 

  • OUTCOME #4: Breath support (number of syllables produced in sustained breath) across music therapy techniques the gains for individual Ps ranged from 0 to 5 syllables

 

– What was the statistical test used to determine significance? NA, differences were described and not subjected to inferential statistical analysis.

 

– Were confidence interval (CI) provided? No

 

 

  1. What is the clinical significanceNA, evidence-based practice data were not provided.

 

 

  1. Were maintenance data reported? No

 

 

  1. Were generalization data reported? No

 

 

  1. Describe briefly the experimental design of the investigation.

 

  • This qualitative research involved Protocol Evaluation in which the investigators reviewed 66 videos of MT sessions from 7 Ps with nonfluent aphasia.

 

  • The investigators identified 7 MT techniques from the literature that were used with the Ps and noted their effectiveness as well as recommended guidelines for employing each of the techniques.

 

  • The 7 MT techniques were

– Singing Familiar Songs

– Breathing into Single Syllable Sounds

– Dynamically Cued Singing

– Musically Assisted Speech

– Rhythmic Speech Cuing

– Oral Motor Exercise

– Vocal Intonation

 

 

ASSIGNED OVERALL GRADE FOR QUALITY OF EXTERNAL EVIDENCE: C-

 

 

SUMMARY OF INTERVENTION

 

 

PURPOSE: To describe and evaluate techniques used in MT with Ps with nonfluent aphasia and to link the findings to existing research.

 

POPULATION: Nonfluent Aphasia; Adults

 

MODALITY TARGETED: Production

 

ELEMENTS/FUNCTIONS OF PROSODY TARGETED: rhythm, intonation

 

ELEMENTS OF PROSODY USED AS INTERVENTION: rhythm, intonation, loudness, rate, tempo, pause

 

OTHER ASPECTS OF LANGUAGE/COMMUNICATION TARGETED: articulation; breath support

 

DOSAGE: 8 to 12 individual sessions, 3 times a weeks, 4 weeks, about 30 minutes each session

 

ADMINISTRATOR: Music therapist.

 

MAJOR COMPONENTS:

 

 

 

  • The Clinician (C), a Music Therapist, administered the sessions in a quiet room.

 

  • The C administered 7 MT treatment techniques in each of the sessions:

– Singing Familiar Songs

– Breathing into Single Syllable Sounds

– Dynamically Cued Singing

– Musically Assisted Speech

– Rhythmic Speech Cuing

– Oral Motor Exercise

– Vocal Intonation

 

  • The 7 MT techniques had been derived from the existing literature and were included in the treatment of the speech and singing for Ps with nonfluent aphasia.

 

  • The sessions were recorded and then analyzed by a team of researchers who developed a description of each technique’s effectiveness and guidelines for application.

 

  • The investigators comments (summary, analyses, hints) for each of the seven techniques are listed below.

 

SINGING FAMILIAR SONGS

 

  • Description:

– C leads P in the singing of familiar songs.

– C directs P to select a favorite song.

– C and P focus on the most familiar parts of the song and repeatedly sing them.

– C assists P by modifying the tempo to match P’s skills.

– The investigators contend that modifications of tempo, loudness, and intonation can facilitate interactions between P and C.

 

  • Evidence: (see also Item #9 above)

– Six of the 7 Ps displayed improved articulation and rhythm while singing.

– Five of the Ps had “shallow” (p. 561) voice quality, this improved while singing familiar songs.

– Familiar songs and familiar portions of songs appear to increase motivation and performance.

EXAMPLE: P1

  • sang 80% of words correctly in the first verse of a familiar song and
  • during the second, less familiar, verse she sang only 60% of the words correctly and her loudness decreased 50%.
  • with practice during therapy, her performance on the second verse improved but did not reach the level of the first verse.

– The rhythm of the songs appear to facilitate articulatory accuracy.

EXAMPLE: P5

  • could not produce the words from a familiar song accurately in speech or even produce the rhythm even when cued by mouthing and/or tapping
  • in the context of singing the words P produced 80% of the words accurately and used the targeted rhythm

 

  • Hints:      

– Make sure the songs are familiar; do not improvise new songs.

– It is important to focus on the familiar portions of songs.

It is better to use songs that P knew premorbidly.

– To facilitate accurate production of rhythm and articulation while singing, C should modify the tempo to match P’s skills.

– C should provide cues (e.g., tapping, drum beating, up-down hand movement, mouthing, etc.) to facilitate P’s production.

– To improve the melody of a P’s singing, C should insure that when singing in unison with P, the C should not be too loud and at times let the Ps sing independently. Rather than rely solely on unison singing, P can model and then have C imitate singing.

– In severe cases, C may consider withholding the Musically Assisted Speech technique until P is successful with the Singing Familiar Songs technique.

 

 

BREATHING INTO SINGLE SYLLABLE SOUNDS

 

 

  • Description:

– P breathed single syllable sounds. This was achieved by having P exhale and gently vocalize speech sounds using the following hierarchy:

  • producing natural vocal sounds (e.g., yawning, throat clearing, sighing, etc.)
  • sighing vowels
  • producing vowels
  • producing bilabial consonants
  • producing alveolar consonants
  • producing velar consonants

 

  • Evidence: (see also Item #9 above)

– Articulatory accuracy increased when Cs introduced pauses between syllables.

– The addition of melody to this technique had equivocal results. EXAMPLE:

  • For one P the addition of a melody to the technique resulted in P humming rather than singing the targets.
  • Other Ps seemed to perform better when C intoned targeted syllables in unison with the P and then alternated between modeling and imitation.
  • Melody added to the stimuli was associated with more improved articulation accuracy when the singing involved tones that were disconnected (staccato) from one another rather than when they were sung with smooth transitions from one syllable to the next (in legato.) EXAMPLE:

– TWINKLE TWINKLE LITTLE STAR was associated with better articulation accuracy than AMAZING GRACE.

 

  • Hints:

— The hierarchy of targets speech sound to vocalize is a guideline. Cs should adapt the hierarchy to the articulatory skills of their P and the hierarchy can be modified during the treatment to reflect Ps’ skills.

— Modeling by the C appears to be an effective strategy.

— When targeting and modeling yawning, throat clearing, sighing, C should mimic P’s natural breathing patterns.

— The sighing of vowels is most successful when it begins with C modeling production on a slow and long exhalation.

— To assist Ps in the initiation and/or the sustaining of sounds, the investigators recommend using visual cues (e.g., hand movement) or sustaining tremolos using a guitar.

— Repetition paired with “attention and motivation” (p 561) increased the accuracy of imitation.

— The investigators note that adding a melody to the vocalizations when using this technique has equivocal effects. That is, it facilitated progress in some Ps and impeded progress with other Ps.

 

 

DYNAMICALLY CUED SINGING

 

 

  • Description: In the singing of songs, C pauses to cue P to produce the targeted word/words.

 

  • Evidence: (see also Item #9 above)

– Rhythm appeared to profit more from this technique than intonation.

– This technique seemed effective in encouraging attention as indicated by

  • increased eye contact of more than 50% in all Ps
  • limited increased rate in 6 of the 7 Ps.

– Cueing can be helpful to those who are struggling with this technique. EXAMPLE:

  • A P who perseverated a nonsense syllable was able to produce the target word when the C provided facial cues (mouthing or facial expressions.)

 

  • Hints:

– Cs should monitor the frequency of use of this technique as too frequent use could be associated with distraction or loss of interest.

– It is best to use familiar songs with this technique. Improvised songs are not as successful.

– Also Cs should avoid using phrases that tap the Ps’ internal states as they appear to be a distraction.

 

 

MUSICALLY ASSISTED SPEECH

 

 

  • Description: C identifies common phrases that are used in activities of daily living and in conversation and pairs them with familiar melodies. The phrases are taught in isolation and in role-playing of daily activities.

 

  • Evidence: (see also Item #9 above)

– Gains associated with articulation and fluency were observed with this technique.

  • Ps with articulation problems improved 10% to 30% in intelligibility
  • Ps with fluency problems rate of speech improved up to 15%.

– Ps performed better when a familiar song was reviewed first and then the daily living/conversational phrase was inserted into the melody of the familiar song. EXAMPLE:

  • Ps’ articulatory accuracy and prosody were better when Cs first introduced the targeted familiar song with its original/familiar lyrics and then used the same melody inserting the targeted daily activity/conversational phrase compared to initially targeting the daily/activity/conversational phrases paired with the familiar melody.
  • When Cs’ initially targeted the daily/activity/conversational phrases paired with the familiar melody, Ps seemed confused 80% of the time.
  • Six of the 7 Ps performances improved when Cs enhanced the rhythm of the songs by rhythmically cuing beats and accents using rhythmic cues such as drum beating or finger tapping.
  • Ps with dysarthria generally responded better to staccato (word by word or even syllable by syllable) and slow beats.
  • Ps with fluency (i.e., number or words in a phrase) problems in the absence of articulation problems generally responded better to focusing on short phrases instead of single words/syllables.
  • Ps have individual differences regarding how much setting up of the context is appropriate during the role-playing portion of this technique.

 

  • Hints:

– First present the familiar song with its standard lyrics and then insert the targeted phrases into the familiar melody.

— As a preparatory cue, Cs should use rhythmic cues (e.g., guitar strumming, finger tapping) at the beginning of each target phrase.

– Consistently pair a targeted phrase with the same familiar song.

– If a P is having trouble with a targeted phrase, consider changing the familiar song that has been paired with that phrase.

– Cs should remember to adjust the tempo of the familiar melody to optimize Ps’ production. Usually the adjustment is slowing the tempo but the tempo can be too slow or staccato for some Ps or contexts.

– Although Cs should provide some imaginary context for the role-playing portion of this task, too much attention to setting up the context is distracting.

 

 

RHYTHMIC SPEECH CUING

 

 

  • Description: P motorically claps or taps a drum to the rhythm of a target phrase. The targets can be song lyrics, daily activity phrases, or conversational phrases.

 

  • Evidence: (see also Item #9 above)

– Five of the Ps spontaneously added melody to the targeted phrases.

– Targets that had been used in the Musically Assisted Speech technique were increasingly successful.

– Ps had trouble separating rhythm and melody for the speech targets. That is some Ps sang rather than spoke speech targets using the targeted rhythm.

– A P with hemiplegia, apraxia, and rhythm problems responded well to (1) rhythm targets when the task was adapted to her physical limitations and (2) the targets initially targeted 2 syllable words and gradually moved to 3 word phrases.

– Ps with rhythm problems but not apraxia or with mild apraxia responded best to whole phrase targets.

– The investigators reported that for 6 of the 7 Ps, improved rhythm in speech and singing was “correlated with assertiveness of vocal quality” (p. 565.)

 

  • Hints:

– Cues include:

  • Beats that are “slow and steady” (p. 558) and adapted to the P’s skill level.
  • For song lyrics, the rhythm of the song is a good cue
  • For speech phrases, the rhythm of natural prosodic speaking patterns is the preferred cue.

– Using song melodies tend to be more effective than speech.

– When targeting speech, Cs should monitor Ps’ addition of melody to the target.

– Inclusion of multimodality cues and temporal cues can help P in imitating the C.

 

 

ORAL MOTOR EXERCISE

 

 

  • Description: The purpose of this technique is to improve “oral motor formations” (p. 558.) This is accomplished by C directing P to observe him/her carefully and then modeling a small part of a familiar song using exaggerated mouth and tongue movements.

 

  • Evidence: (see also Item #9 above)

– The investigators noted that this technique was associated with considerable progress in articulatory accuracy and vocal quality. One P did not respond well to this technique but that P was drowsy and inattentive during sessions.

 

  • Hints:

– C should correct P’s errors and repeat the same target multiple times.

– C’s feedback should be sensitive to P’s skill level, attention skills, motivation, and progress.

– Cs should be careful to give clear instructions and feedback and to monitor P’s performance carefully.

– This technique often is not successful with Ps with eye contact and/or attention problems. Dynamically Cued Singing or Vocal Intonation are recommended in such cases.

– Cs should be sure to allow sufficient time for Ps to process what has been modeled and to perform the target. It is best to establish a clear rhythm of modeling-waiting-responding.

 

 

VOCAL INTONATION

 

 

  • Description: C model exaggerated intonation patterns for speech phrases associated with different meanings. Cs provide visual cues (e.g., hand or head motions) representing changes in intonation/pitch as needed to achieve a positive outcome.

 

  • Evidence: (see also Item #9 above)

– The investigators noted that Ps progressed in the ability to modulate their pitch, intonation, and loudness.

– Progress was reported to have generalized out of the clinic into the nursing home context for 2Ps.

– As the result of this technique, Ps appeared more spontaneous and natural.

– Tempos that were too slow or excessively exaggerated interfered with progress.

 

  • Hints:

– The use of visual cues (e.g., hand movements representing changes in intonation) facilitated progress.

– The use of role-playing helped Ps generate intonation patterns that were appropriate to the context.

– The ideal tempo appears to be slow and clear but within normal limits for tempo and intonation.

 


Martikainen & Korpilahti (2011)

November 15, 2017

EBP THERAPY ANALYSIS for

Single Case Designs

NOTES:

  • The summary of the intervention procedure(s) can be viewed by scrolling about two-thirds of the way down on this page.

Key:

C = Clinician

CAS = childhood apraxia of speech

EBP = evidence-based practice

MIT = Melodic Intonation Therapy

NA = not applicable

P = Patient or Participant

PCC = Percentage of Consonants Correct

PMLU = Phonological Mean Length of Utterance

PVC = Percentage of Vowels Correct

PWC = Proportion of Whole-Word Correctness

PWP = Proportion of Whole-Word Proximity

pmh = Patricia Hargrove, blog developer

SLP = speech–language pathologist

WNL = within normal limits

 

SOURCE: Martikainen, A-L, & Korpilahti, P. (2011). Intervention for childhood apraxia of speech: A single-case study. Child Language Teaching and Therapy, 27 (1), 9- 20.

 

REVIEWER(S): pmh

 

DATE: November 14, 2017

 

ASSIGNED OVERALL GRADE: D+   (The highest possible grade, based on the design of the investigation, is D+. The Assigned Overall Grade merely represents the quality of the evidence supporting the intervention and should not be construed to be a comment of the quality of the intervention.

 

TAKE AWAY: The results of this single case study revealed that a combined intervention in which Melodic Intonation Therapy (MIT) followed by a course of the Touch-Cue Method (TCM) resulted in improved speech accuracy in a Finnish-speaking 4-year-old child diagnosed with Childhood Apraxia of Speech (CAS.)

                                                                                                           

    1.  What was the focus of the research? Clinical Research

  

  1. What type of evidence was identified?                                                                                                
  • What type of single subject design was used? Case Study – Description with Pre and Post Test Results                                                                                                  
  • What was the level of support associated with the type of evidence? Level = D+

                                                                                                           

  1. Was phase of treatment concealed?
  • from participants? No
  • from clinicians? No
  • from data analyzers? No

  

  1. Was the participant (P) adequately described? Yes

– How many Ps were involved in the study? List here: 1

– CONTROLLED CHARACTERISTICS          

  • cognitive skills: nonverbal cognitive skills within normal limits (WNL)
  • receptive language: WNL
  • hearing: WNL
  • diagnosis: CAS (8 of 11 speech and nonspeech CAS characteristics)
  • dysarthria: no signs
  • speech related structures: WNL

– DESCRIBED CHARACTERISTICS

  • age: 4;7 at the beginning of the investigation
  • gender: female
  • birth and medical history: WNL

* first word: 12 months but for 6 months she did not use words

  • multiword utterances: 36 months
  • expressive language:

Poor Finnish word naming

     – Phonetic Inventory– all vowels and consonants (except /d, l, r/)

     – Speech Sound errors — inconsistent vowel substitutions and distortions including some nasalization; inconsistent consonant substitutions and omission

     – Limited speech

     – Unintelligible

  • receptive language: WNL
  • family history of speech-language problems: multiple family members
  • age of first referral: 3;5
  • previous speech-language therapy: began 3 months after referral; 12 sessions between 3;8 an 4;6

                                                 

– Were the communication problems adequately described? Yes

  • The disorder type:  CAS
  • Other aspects of communication that were described:

limited, unintelligible speech

     – consonant inventory limited at initial evaluation by beginning of investigation intervention (at 4; 7) only missing /d/, /l/, and /r./

     – at initial evaluation –inconsistent use of vowels, although all Finnish vowels were in the vowel inventory

     – at the beginning of the investigation intervention, the participant (P) errors included:

          ∞ inconsistent errors in spontaneous speech and in imitation of single words

           ∞ consonant omission

           ∞ vowel substitutions and omission as well as nasalizatinon

           ∞ articulatory groping noted in imitation of short sentences but not spontaneous speech and picture naming

          ∞ syllable shapes were simple

           ∞ polysyllabic words reduced

           ∞ inflections omitted

           ∞ could not produce trisyllables in imitated diadochokinetic task but monosyllable repetitions were WNL

           ∞ protruding lips and alternating lip protrusion and retraction task was mildly impaired

                                                                                                                       

  1. Was membership in treatment maintained throughout the study? Not applicable, there was only one P.
  • If there was more than one participant, did at least 80% of the participants remain in the study? Not applicable (NA) 
  • Were any data removed from the study? No

 

  1. Did the design include appropriate controls? No, this was a case study.                                                                 
  • Were baseline/preintervention data collected on all behaviors? Yes\
  • Did probes/intervention data include untrained stimuli? Yes
  • Did probes/intervention data include trained stimuli? No
  • Was the data collection continuous? No
  • Were different treatments counterbalanced or randomized? NA

  

  1. Were the outcome measures appropriate and meaningful? Yes

– OUTCOMES

  • OUTCOME #1: Percentage of Vowels Correct (PVC) from naming of pictures modified from the Finnish Articulation Test

 

  • OUTCOME #2: Percentage of Consonants Correct (PCC) from naming of pictures modified from the Finnish Articulation Test

 

  • OUTCOME #3: Modified Phonological Mean Length of Utterance (PMLU) from naming of pictures modified from the Finnish Articulation Test

 

  • OUTCOME #4: Proportion of Whole-Word Proximity (PWP) from the naming of pictures modified from the Finnish Articulation Test

 

  • OUTCOME #5: Proportion of Whole-Word Correctness (PWC) from the naming of pictures modified from the Finnish Articulation Test

 

  • OUTCOME #6: Qualitative analysis of production from the naming of pictures modified from the Finnish Articulation Test

All of the outcomes that were subjective.

None of the outcomes that were objective. 

Interobserver deliability data were collected for the transcription of the words named in from the Finnish Articulation Test: 89% agreement

 

  1. Results:

 –  Did the target behaviors improve when treated? Yes, for the most part

  • OUTCOME #1: Percentage of Vowels Correct (PVC) on the naming of pictures modified from the Finnish Articulation Test:   strong improvement

∞ baseline to end of MIT: improved significantly

∞ end of MIT to end of no treatment phase: improved significantly

∞ end of no treatment phase to end of TCM:

∞   end of TCM to end of follow up: improved significantly

∞ descriptive: week 0 and week 6 (baseline) PVC = 54.8%, 57.8%, respectively; end of the study (week 36)   PVC = 93%

 

  • OUTCOME #2: Percentage of Consonants Correct (PCC) on the naming of pictures modified from the Finnish Articulation Test: strong improvement

∞ baseline to end of MIT: decreased significantly

∞ end of MIT to end of no treatment phase: improved significantly

∞ end of no treatment phase to end of TCM: improved significantly

∞   end of TCM to end of follow up: no significant change

∞ descriptive: week 0 and week 6 (baseline) PCC = 24%, 31.2%, respectively; end of the study (week 36)  PCC = 73.1%

 

  • OUTCOME #3: Modified Phonological Mean Length of Utterance (PMLU) on the naming of pictures modified from the Finnish Articulation Test: moderate improvement

∞ baseline to end of MIT: no significant improvement

∞ end of MIT to end of no treatment phase:  improved significantly

∞ end of no treatment phase to end of TCM: improved significantly

∞   end of TCM to end of follow up: improved significantly

∞ descriptive: week 0 and week 6 (baseline) PMLU = 6.12, 6.38, respectively; end of the study (week 36)  PMLU = 8.80

 

  • OUTCOME #4: Proportion of Whole-Word Proximity (PWP) on the naming of pictures modified from the Finnish Articulation Test: limited improvement

∞ baseline to end of MIT: no significant improvement

∞ end of MIT to end of no treatment phase: no significant improvement

∞ end of no treatment phase to end of TCM: no significant improvement

∞   end of TCM to end of follow up: no significant improvement

∞ descriptive: week 0 and week 6 (baseline) PWP = 0.64, 0.68, respectively; end of the study (week 36)  PWP = 0.91

 

  • OUTCOME #5: Proportion of Whole-Word Correctness (PWC) on the naming of pictures modified from the Finnish Articulation Test: moderate improvement

∞ baseline to end of MIT: no significant improvement

∞ end of MIT to end of no treatment phase: no significant improvement

∞ end of no treatment phase to end of TCM: improved significantly

∞   end of TCM to end of follow up: no significant change

∞ descriptive: week 0 and week 6 (baseline) PWC = 0.17, 0.19, respectively; end of the study (week 36)  PWC = 0.39

 

  • OUTCOME #6: Qualitative analysis of production on the naming of pictures modified from the Finnish Articulation Test: authors reported that phoneme production and sequencing improved (Moderate improvement)

 

  1. Description of baseline:
  • Were baseline data provided? Yes, for Outcomes 1 through 5 there were two baseline session, six weeks apart.                                         
  • Was baseline low (or high, as appropriate) and stable? For Outcomes 1 through 5, all the baselines were low and stable.
  • Was the percentage of nonoverlapping data (PND) provided? No

 

  1. What is the clinical significanceNA

 

  1. Was information about treatment fidelity adequate? Not Provided

 

  1. Were maintenance data reported?  Yes
  • Improvements in Outcomes #1 though 5 were maintained or increased at follow up.

 

  1. Were generalization data reported? Yes, since untrained stimuli were used for all the Outcomes, the Results (item #8) can be viewed as generalization data.

  

  1. Brief description of the design:
  • This single case study explored the effectiveness of administering MIT and TCM sequentially to treat a 4-year old Finnish child who had been diagnosed with CAS.
  • The outcome measures were concerned with consonant and vowel accuracy as well as Whole-word Accuracy and were derived from the picture naming task of the Finnish Articulation Test.
  • The schedule of testing and treatment was

∞ 2 sessions of baseline at Week 0 and Week 6

∞ 6 weeks of MIT running from Week 6 to Week 12.

∞ 6 weeks of no treatment from week 12 to Week 18

∞ 6 weeks of TCM from Week 18 to Week 24

∞ Follow-up assessment (Week 36) after 12 weeks of no treatment (Week 24 to Week 36)

  • The measures were compared from

∞ baseline (Week 6) to end of MIT (Week 12),

∞ end of MIT (week 12) to end of no treatment phase (Week 18),

∞ end of no treatment phase (Week 12) to end of TCM (Week 24), and

∞ end of TCM (Week 24) to end of follow up (Week 36).

 

ASSIGNED OVERALL GRADE OF THE QUALITY OF SUPPORT FOR THE INTERVENTION: D+

 

SUMMARY OF INTERVENTION

 

PURPOSE: To investigate the effectiveness of a combined treatment program using MIT and TCM

POPULATION: Childhood Apraxia of Speech; Children 

MODALITY TARGETED: production

ELEMENTS OF PROSODY USED AS INTERVENTION: intonation

OTHER ASPECTS OF LANGUAGE/COMMUNICATION TARGETED: speech sound accuracy; whole word accuracy

DOSAGE: 30 minute sessions, 3 times a week for 6 week (each treatment)

ADMINISTRATOR: SLP

MAJOR COMPONENTS:

  • There were 2 treatments: a modified version of MIT and TCM

 

MELODIC INTONATION THERAPY (MIT)

  • The stimuli for MIT were 3 sentence lists in the Finnish language. Each list

– contained 10 sentences that were 2 to 3 words long

– included topics that were developmentally appropriate

– consisted of bisyllable words which were in the P’s phonetic repertoire. (There was one exception to this final characteristic of the lists.)

  • At the beginning of treatment, the clinician © simultaneously signs Finninsh with the intoned speech. This support is gradually faded as P becomes familiar with the sentences.
  • C models a target sentence 2 times while intoning it.
  • C and the participant (P) intone the target sentence simultaneously.
  • C models the intoned version of the target sentence.
  • P intones the sentence independently. The C can facilitate P’s production if necessary.
  • C asks P a question to elicit the target sentence spontaneously.

 

TOUCH-CUE METHOD (TCM)

  • The practice materials were syllable sequences (nonsense syllables) and meaningful words. The practice materials were made up of any Finnish vowel and the some of following phonemes: /p, k, s, l/.
  • There were 2 phases .

PHASE 1

  • There were 3 steps. All the stimuli were nonsense syllables.
  • Criterion for advancement was 100% correct for 3 consecutive sessions.

PHASE 1—STEP 1

  • P practiced producing a single nonsense syllable /pa/ or a repeated nonsense syllable /papa/.

PHASE 1—STEP 2

  • P practiced producing a nonsense bisyllable with identical vowels but different consonants /paka/.

PHASE 1—STEP 1

  • P practiced producing a nonsense bisyllable with different vowels and different consonants /paku/.

PHASE 2

  • The target stimuli were now meaningful bisyllable words.
  • Criterion for advancement was 90% correct for 3 consecutive sessions.
  • C modeled the target word 2 or 3 times while simultaneously using touch cues to facilitate production.
  • C and P practiced the target word simultaneously 5 to 10 times continuing to use touch cues.
  • Auditory and visual cues were gradually faded until P produced the target word 5 times (while still being assisted with touch cues.)

 

 


Ballard et al. (2015)

June 30, 2017

 

SECONDARY REVIEW CRITIQUE

 

 

KEY:

 

C = clinician

NA = not applicable

P = patient or participant

PEDro-P scale = Physiotherapy Evidence Database (PEDro-P) scale

pmh = Patricia Hargrove, blog developer

SCED scale = Single Case Experimental Design scale

SLP = speech-language pathologist

SR = Systematic Review

 

 

Source: Ballard, K. J., Wambaugh, J.L., Duffy, J. R., Layfield, C., Maas, E., Mauszycki, S., S., & McNeil, M. R. (2015). Treatment for acquired apraxia of speech: A systematic review of intervention research between 2004 and 2012. American Journal of Speech-Language Pathology, 24, 316-337.

 

Reviewer(s): pmh

 

Date: June 29, 2017

 

Overall Assigned Grade: B (The highest possible grade associated with this design, Systematic Review with Broad Criteria, is B. The grade reflects the overall quality of evidence associated with the interventions described in the research and does not represent a judgment about the interventions themselves.)

 

Level of Evidence:  B

 

Take Away: This Systematic Review (SR) included a broad range of research designs investigating the effectiveness of intervention for acquired apraxia of speech (AOS.) Most of the sources involved nonprosodic outcomes and/or treatment procedures with only 8 sources focusing on prosodic outcomes and/or prosodic treatment procedures. Accordingly, only those 8 sources are summarized and analyzed in this review. The findings indicated that treating prosody directly and using prosody to treat articulatory and/or naming outcomes can result in improvements.

 

What type of secondary review? Narrative Systematic Review

 

 

  1. Were the results valid? Yes

 

– Was the review based on a clinically sound clinical question? Yes

 

– Did the reviewers clearly describe reasonable criteria for inclusion and exclusion of literature in the review (i.e., sources)? Yes

 

– The authors of the secondary research noted that they reviewed the following resources:

  • internet based databases
  • references from identified literature
  • theses/dissertations
  • Google Scholar,

 

– Did the sources involve only English language publications? Yes

 

– Did the sources include unpublished studies? No

 

– Was the time frame for the publication of the sources sufficient? Yes

 

– Did the authors of the secondary research identify the level of evidence of the sources? Yes

 

– Did the authors of the secondary research describe procedures used to evaluate the validity of each of the sources? Yes

 

– Was there evidence that a specific, predetermined strategy was used to evaluate the sources? Yes

 

– Did the authors of the secondary research or review teams rate the sources independently? Yes

 

– Were interrater reliability data provided? Yes

  • Interrater reliability for the classification of the level of evidence based on the experimental design of the investigation = 100%
  • Combined Interrater reliability for the Single Case Experimental Design scale (SCED) scale or the Physiotherapy Evidence Database (PEDro-P) scale = 96%
  • Interrater reliability regarding the level of confidence of diagnosis of apraxia of speech (AOS) = 93%

 

– Were assessments of sources sufficiently reliable? Yes

 

– Was the information provided sufficient for the reader to undertake a replication? Variable

 

– Did the sources that were evaluated involve a sufficient number of participants? Variable

 

– Were there a sufficient number of sources? Variable, ultimately, the investigators reviewed 26 sources which is acceptable. However, only 8 of these were prosody related?.

 

  1. Description of outcome measures:

 

  • Outcome #1: Improved speech skills (Aitken Dumham, 2010; using music therapy)

 

  • Outcome #2: Improved naming skills (Aitken Dumham, 2010; using music therapy)

 

  • Outcome #3: Improved performance on standardized tests (Aitken Dumham, 2010; using music therapy)

 

  • Outcome #4: Improvement in duration (Cowell, 2010; Brendel, 2008; Mauszycki, 2008)

 

  • Outcome #5: Improved production of words or sounds within words (Wambaugh, 2012; including rate/rhythm control procedures)

 

  • Outcome #6: Improved articulatory accuracy/speech sound production (Brendel, 2008 using metrical pacing therapy; Mauszycki, 2008 hand tapping in unison with metronome)

 

  • Outcome #7: Reduced dysfluencies (Brendel, 2008 using metrical pacing therapy)

 

  • Outcome #8: Improved word production (van der Merwe, 2011, one component of the intervention involved rate increases; Schneider, 2005, one component of the intervention involved syllable by syllable production; Marangolo, 2011, parts of the intervention involved syllable segmentation or vowel prolongation)

 

 

  1. Description of results:

 

  • What measures were used to represent the magnitude of the treatment/effect size? No measures of the magnitude of the treatment effect/effect size were reported.

 

  • Summary overall findings:

 

– Overall, treatments using prosody as an intervention or treating selected aspects of prosody (duration and dysfluencies) tend to result in improvement in the speech of people with acquired AOS.

– The changes associated with the outcomes of interest in the review are

 

  • Outcome #1: Improved speech skills (Aitken Dumham, 2010; using music therapy)—greater improvement was noted with combined speech-language and music therapy than with either treatment alone

 

  • Outcome #2: Improved naming skills (Aitken Dumham, 2010; using music therapy) — greater improvement was noted with combined speech-language and music therapy than with either treatment alone

 

  • Outcome #3: Improved performance on standardized tests (Aitken Dumham, 2010; using music therapy) — greater improvement was noted with combined speech-language and music therapy than with either treatment alone

 

  • Outcome #4: Improvement in duration (Cowell, 2010; Brendel, 2008; Mauszycki, 2008)—improvement following self-administered computer speec programs was noted for word duration; sentence duration improved in a metrical pacing intervention but it did not improve with an articulation treatment

 

  • Outcome #5: Improved production of words or sounds within words (Wambaugh, 2012; including rate/rhythm control procedures) – Repeated Practice with Rate/Rhythm Control did NOT result in better results than Repeated Practice alone.

 

  • Outcome #6: Improved articulatory accuracy/speech sound production (Brendel, 2008 using metrical pacing therapy; Mauszycki, 2008 hand tapping in unison with metronome)– metrical pacing intervention resulted in improved articulation despite the fact that there was no feedback regarding articulation in the treatment protocol; hand tapping and the production of one syllable at time in the absence of attention to articulatory accuracy resulted in improved articulatory accuracy

 

  • Outcome #7: Reduced dysfluencies (Brendel, 2008 using metrical pacing therapy)— improved fluency follow a metrical pacing intervention not with an articulation treatment

 

  • Outcome #8: Improved word production (van der Merwe, 2011, one component of the intervention involved rate increases; Schneider, 2005, one component of the intervention involved syllable by syllable production; Marangolo, 2011, parts of the intervention involved syllable segmentation or vowel prolongation) — word production improved in van der Merwe (2011) and Schneider (2005) intervention ; it was not clear what components of the interventions were effective. Moreover, the Manangolo (2011) treatment that incorporated modifications of prosody was out performed by Anodic tDCS stimulation.

 

  • Were the results precise? NA

 

  • If confidence intervals were provided in the sources, did the reviewers consider whether evaluations would have varied if the “true” value of metrics were at the upper or lower boundary of the confidence interval? NA

 

  • Were the results of individual studies clearly displayed/presented? Yes

 

  • For the most part, were the results similar from source to source? Yes

 

  • Were the results in the same direction? Yes

 

  • Did a forest plot indicate homogeneity? NA

 

  • Was heterogeneity of results explored? No

 

  • Were the findings reasonable in view of the current literature? Yes
  • Were negative outcomes noted? Yes

           

                                                                                                                   

  1. Were maintenance data reported? Yes, some of the investigations that involved prosody explored maintenance.

 

 

  1. Were generalization data reported? Yes, some of the investigations that involved prosody explored generalization.

 

 

 

SUMMARY OF INTERVENTION

 

#1: Aitken Dunham (2010)

 

 

Population: Acquired AOS

 

Nonprosodic Targets: speech skills, naming skills, performance on standardized tests

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets: music (melody), rate, loudness, pausing, rhythm (clapping to music)

 

Description of Procedure/Source #1— Aitken Dunham (2010)

  • There were 3 interventions:

– traditional speech and language intervention (8 step program, focusing on naming)

– music therapy (MT; singing, slow and gentle production of syllables, using songs producing phrases, modifying loudness and pauses during songs, clapping to songs.

– combined traditional and MT

 

Evidence Supporting Procedure/Source #1— Aitken Dunham (2010)

     – both interventions individually resulted in improvement in outcomes but a combined approach (traditional plus MT) was superior to either of the sole interventions

 

 

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#2: Cowell (2010)

 

Population: Acquired AOS

 

Prosodic Targets: word duration

 

Nonprosodic Targets: word accuracy

 

Description of Procedure/Source #2 —(Cowell, 2010; self administered computer program)

 

  • The P self-administered the invention using a computer program. The program included

– multimodality (auditory, visual, orthographic, visual object, somatosensory, sensory) stimulation

–   imagined production

– actual word production

 

Evidence Supporting Procedure/Source #2—(provide title)

 

  • Improvements for the intervention described above were superior to a foil treatment.

 

 

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#3: Marangolo (2011)

 

Population: acquired AOS

 

Nonprosodic Targets: word production

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets: segregation of syllables (concordance), vowel prolongation

 

Description of Procedure/Source #3—(Marangolo, 2011)

 

  • Only the Behavioral Treatment that incorporated prosody is summarized here.

 

  • The Behavioral Treatment included

– Imitation of nonwords and words using a cuing hierarchy

– Modeling of nonwords and words with segregated syllable, prolonged vowels, and exaggerated articulation.

 

Evidence Contraindicating Procedure/Source #3—(Marangolo, 2011)

 

  • Manangolo (2011) treatment that incorporated modifications of prosody was out performed by Anodic tDCS stimulation.

 

 

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#4: Schneider (2005)

 

Population: acquired AOS

 

Nonprosodic Targets: (non)word production

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets: syllable-by-syllable production (concordance_

 

Description of Procedure/Source #4—(Schneider, 2005)

 

  • 8 step continuum that included

– imitation

– unison speech

– syllable-by –syllable production

– tactile instructions

– verbal instructions

 

 

Evidence Supporting Procedure/Source #4—(Schneider, 2005)

 

  • P’s production of target nonwords improved.

 

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van der Merwe (2011)

 

Population: acquired AOS

 

Nonprosodic Targets: words (and nonwords)

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets: rate

 

Description of Procedure/Source #5—(van der Merwe, 2011)

 

  • The Speech Motor Learning Program included

– a progression from imitated blocked practice producing nonwords to the production of real words

– the hierarchy was from less to more complex

– the practice schedule changed to random and variable practice

– self-monitoring tasks

– increases in targeted rates

– modifications in feedback

 

Evidence Supporting Procedure/Source #5— (van der Merwe , 2011)

 

  • The overall program resulted in improvement in word and nonword production.

 

Evidence Contraindicating Procedure/Source #5—(van der Merwe, 2011)

 

  • There were also changes in untreated behaviors which clouded the findings

 

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#6: Wambaugh (2012)

 

Population: acquired AOS

 

Nonprosodic Targets: words or sounds within words

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets: rate, rhythm

 

Description of Procedure/Source #6—(Wambaugh, 2012)

 

  • P repeated the target 5 times after the C provided a model. Rate and rhythm were controlled. I have no idea what control of rate and rhythm means!

 

  • C provided feedback.

 

Evidence Supporting Procedure/Source #6—(Wambaugh (2012)

 

  • Rate/Rhythm procedures paired with Repeated Practice resulted in more improvements than Repeated Practice alone.

 

 

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#7: Brendel (2008)

 

Population: acquired AOS

 

Prosodic Targets: sentence duration, dysfluencies

 

Nonprosodic Targets: articulatory accuracy

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets: rhythm, rate, loudness

 

Description of Procedure/Source #7—(Brendel, 2008)

 

  • Metrical Pacing Treatment included

– production of sentences in unison with a sequence of tones

– visual feedback comparing the amplitude of P’s production to the targeted tone sequence

– C provided feedback on rate, fluency, and matching of rhythm patterns

– C provided cues to facilitate accuracy (i.e., tapping, tactile cues, choral speech)

 

  • Metrical Pacing Treatment did not include attention to articulatory accuracy.

 

Evidence Supporting Procedure/Source #7—(Brendel, 2008)

 

  • Metrical Pacing Treatment resulted in improvements in prosodic and nonprosodic target while Articulation Treatment only resulted in improvements in nonprosodic targets.

 

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#8: Mauszycki (2008)

 

Population: acquired AOS

 

Prosodic Targets: duration

 

Nonprosodic Targets: sound production

 

Aspects of Prosody Used in Treatment of Nonprosodic Targets: rhythm, rate, syllable-by-syllable production (concordance)

 

Description of Procedure/Source #8—(Mauszycki, 2008)

 

 

  • The treatment included

– hand tapping

– production of one syllable at a time in unison with a metrodome

– the rate was modified to the needs of the P

– C modeled production

– unision productions with the C

– repetitions

– C provided feedback regarding the accuracy of the rate and rhythm.

 

  • The treatment did not involve attention of the accuracy of sounds.

 

 

Evidence Supporting Procedure/Source #8—(Mauszycki, 2008)

 

  • Improved utterance duration and sound production.

 

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