Behavioural intervention for dysphagia in acute stroke: a randomised controlled trial

Area of Science:

• Neurology
• Rehabilitation Medicine
• Speech-Language Pathology

Background:

• Swallowing dysfunction (dysphagia) is a frequent complication following stroke.
• Limited high-quality evidence exists for effective dysphagia management strategies.
• This study investigated the efficacy of behavioral interventions for post-stroke dysphagia.

Purpose of the Study:

• To compare the effectiveness of standard low-intensity and high-intensity behavioral swallowing interventions against usual care for patients with acute stroke and dysphagia.
• To evaluate the impact of these interventions on survival, diet modification, and functional recovery at six months.

Main Methods:

• 306 patients with acute stroke and dysphagia were randomized into three groups: usual care, low-intensity intervention (3x/week), and high-intensity intervention (daily).
• Interventions included swallowing compensation strategies and diet prescription.
• The primary outcome was survival free of an abnormal diet at 6 months, with intention-to-treat analysis.

Main Results:

• Standard swallowing therapy, compared to usual care, showed a significant reduction in swallowing-related medical complications, chest infections, and death or institutionalization.
• A significant increase in patients regaining swallowing function was observed with standard swallowing therapy.
• High-intensity therapy demonstrated a significant increase in patients returning to a normal diet and recovering swallowing function compared to usual care and low-intensity therapy.

Conclusions:

• Early behavioral swallowing intervention, incorporating active therapy and dietary modifications, shows a trend towards improved outcomes for stroke patients with dysphagia.
• High-intensity intervention appears particularly beneficial for promoting return to a normal diet and functional swallowing recovery.