Behavioural Swallowing Interventions for Persons with Ataxic Etiologies: A Systematic Review.

Area of Science:

• Neurology
• Speech-Language Pathology

Background:

• Oropharyngeal dysphagia is prevalent in individuals with ataxic etiologies.
• The physiological impacts and remediation strategies for ataxic dysphagia are not well-documented.
• Evidence-based behavioral swallowing interventions for ataxic populations are understudied.

Purpose of the Study:

• To systematically review the literature on the use and effectiveness of behavioral swallowing interventions for dysphagia in individuals with ataxic etiologies.

Main Methods:

• A comprehensive literature search was conducted across seven databases and grey literature sources.
• Studies reporting behavioral swallowing interventions in adults with primary ataxic etiologies were included.
• Three studies (one pre-post, one case report, one case series) met inclusion criteria.

Main Results:

• Seven patients with ataxic conditions (degenerative ataxias, cerebellar stroke) were analyzed.
• Five patients demonstrated improved penetration-aspiration scores.
• Improvements were observed with interventions including chin tuck positioning, supraglottic swallow, and tongue strengthening exercises.

Conclusions:

• Limited but emerging evidence suggests behavioral swallowing interventions can benefit individuals with ataxic dysphagia.
• Further research is needed to establish the effectiveness of these interventions, particularly for coordination difficulties inherent in ataxic etiologies.