Pharyngeal electrical stimulation to treat dysphagia in acute stroke: learnings from cases in the PhEED clinical trial

• Published in: Journal of rehabilitation medicine Vol. 57; p. jrm43538
• Main Authors: Harvey, Richard L., Smith, Richard, Bathula, Rajaram, Everton, Lisa, Rup, Nicole, Saver, Jeff, Martin-Harris, Bonnie, Dziewas, Rainer, Mistry, Satish, Hamdy, Shaheen, Bath, Philip
• Format: Journal Article
• Language: English
• Published: Sweden Medical Journals Sweden 05.09.2025
• Subjects: Aged; deglutition disorders; Deglutition Disorders - etiology; Deglutition Disorders - rehabilitation; Deglutition Disorders - therapy; Dysphagia; Electric Stimulation Therapy - methods; electrical stimulation therapy; Female; Humans; Male; Middle Aged; Pharynx - physiopathology; Severity of Illness Index; Stroke; Stroke - complications; Stroke Rehabilitation - methods; Treatment Outcome
• ISSN: 1651-2081; 1651-2081
• DOI: 10.2340/jrm.v57.43538

Objective: To assess the efficacy of pharyngeal electrical stimulation in improving dysphagia post-stroke. Design: A randomized, sham-controlled, blinded multicentre clinical trial. Subjects/Patients: Seventeen patients with acute ischaemic or haemorrhagic stroke experiencing dysphagia, indicated by a penetration aspiration scale score of 4–8 on videofluoroscopy. Methods: Sites enrolled 3 open-label roll-in participants and then randomized subsequent participants to either stimulation or sham treatment. Study interventions were delivered for 10 min daily over 3 consecutive days. Prior to data lock the primary outcome was modified to the change in dysphagia severity rating scale from pre-treatment to end of follow-up period. Secondary outcomes included penetration-aspiration scale score assessed via videofluoroscopy 48 h after final treatment and functional oral intake scale, measured at 7, 14, and 83 days post-randomization. Results: The trial was halted early due to low recruitment, with 15 participants receiving active stimulation and 2 receiving sham treatment. Active stimulation significantly reduced dysphagia severity at day 83 (difference: –4, p = 0.027). Improvements were observed in diet and supervision subscales, and functional oral intake scores. Of those treated, 67% were discharged home, with no serious adverse events attributable to the intervention noted in either group. Conclusion: Pharyngeal electrical stimulation was safe and associated with reduced dysphagia severity in stroke patients, warranting further validation in larger studies.