Neuronavigated high-frequency repetitive transcranial magnetic stimulation for chronic post-stroke dysphagia: A...

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Clinical Trials

Background:

• Stroke often leads to dysphagia, impacting quality of life.
• Repetitive transcranial magnetic stimulation (rTMS) shows potential for improving swallowing function.
• Limited research exists on rTMS for chronic post-stroke dysphagia.

Purpose of the Study:

• To evaluate the effectiveness of rTMS on swallowing function in chronic stroke patients.
• To assess the impact of rTMS on swallowing-related quality of life.

Main Methods:

• A randomized controlled trial involving 15 participants with chronic post-stroke dysphagia.
• Participants received 10 days of active or sham 5 Hz rTMS over the tongue motor cortex.
• Outcomes measured via videofluoroscopic swallowing study, quality-of-life questionnaire, and Iowa Oral Performance Instrument at multiple time points.

Main Results:

• No statistically significant improvements were observed in swallowing function or quality of life.
• Videofluoroscopic swallowing studies showed no significant changes.
• Iowa Oral Performance Instrument scores did not demonstrate significant differences between groups.

Conclusions:

• 5 Hz rTMS applied to the tongue motor cortex is not effective for chronic post-stroke dysphagia.
• Potential reasons for non-significant findings are discussed.
• Future studies should investigate combining rTMS with conventional dysphagia therapy.