Melodic intonation therapy in post-stroke nonfluent aphasia: a randomized pilot trial

Area of Science:

• Neurorehabilitation
• Speech and Language Therapy
• Stroke Recovery

Background:

• Aphasia, a communication disorder, frequently occurs after stroke, impacting nonfluent speech.
• Melodic Intonation Therapy (MIT) is an intervention that utilizes musicality to improve speech production.

Purpose of the Study:

• To gather data for sample size estimation in a definitive randomized controlled trial (RCT).
• To evaluate the preliminary effects of Melodic Intonation Therapy (MIT) on post-stroke nonfluent aphasia.

Main Methods:

• A randomized, crossover, interventional pilot trial involving 20 stroke survivors with nonfluent aphasia.
• Participants received either MIT or served as waiting list controls, with assessments at baseline, 6, and 12 weeks using the Communicative Activity Log (CAL) and Boston Diagnostic Aphasia Examination (BDAE).

Main Results:

• Intention-to-treat analysis revealed a significant improvement in the CAL scores for the MIT group (mean difference 8.5 points, P=.043).
• No significant changes were observed in the BDAE sections, but per-protocol analysis also indicated a treatment effect on the CAL.

Conclusions:

• Melodic Intonation Therapy shows potential for enhancing communication skills in stroke survivors with nonfluent aphasia, as indicated by CAL questionnaire results.
• A larger, definitive RCT with at least 27 participants per group is recommended to validate these findings.