Abstract
Pharyngeal electrical stimulation (PES) has emerged as a promising intervention for neurogenic dysphagia, with potential benefits in reducing dysphagia severity in stroke patients. PES may facilitate decannulation in tracheotomised stroke patients with dysphagia, yet the predictive factors for treatment success have not been investigated in detail. This study used data from the PHAryngeal electrical stimulation for treatment of neurogenic Dysphagia European Registry (PHADER) study to identify predictive factors for PES treatment success among patients with post stroke dysphagia who required mechanical ventilation and tracheotomy. Multiple linear regression was performed to predict treatment success, as measured in improvement in dysphagia severity rating scale (DSRS), accounting for age, sex, stroke type, lesion location, baseline National Institutes of Health Stroke Scale (NIHSS) score, feeding status, time from stroke onset to PES, PES perceptual threshold and PES stimulation intensity at the first session. Cox regression was conducted to identify the predictors for decannulation for all participants. Ninety-eight participants (mean [SD] age = 66.6 [13.0]; male 73.5%) were included in the analyses. Regression analyses showed that early intervention (p = 0.004) and younger age (p = 0.049) were significant predictors for treatment success. For participants who received PES during tracheotomy (n = 60; mean [SD] age = 66.6 [11.2]; male 73.3%), supratentorial stroke (p = 0.033) and feeding status at baseline (p = 0.025) were predictors of treatment success. Among all participants, early intervention was associated with higher likelihood of decannulation (p = 0.026). These results highlight the importance of timely intervention, age and stroke location in PES treatment success for stroke patients with mechanical ventilation and tracheotomy.
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