Predicting Swallowing Recovery in Subacute Stroke Patients via Temporal and Spatial Parameters of Videofluoroscopy

Area of Science:

• Neurology
• Rehabilitation Medicine
• Speech-Language Pathology

Background:

• Post-stroke dysphagia significantly impacts patient recovery and quality of life.
• Accurate prediction of swallowing function recovery is crucial for tailoring rehabilitation strategies.

Purpose of the Study:

• To identify temporal and spatial parameters from videofluoroscopic swallowing studies (VFSS) that predict swallowing function recovery in subacute stroke patients.
• To establish predictive models for post-stroke dysphagia rehabilitation.

Main Methods:

• A cohort of 102 subacute stroke patients was analyzed.
• Patients were categorized into good and poor prognosis groups based on swallowing function and oral intake.
• Univariate and multivariate regression analyses were employed to determine significant predictors.

Main Results:

• Laryngeal closure duration (LCD), maximum width of the upper esophageal sphincter opening (MWUESO), and pharyngeal residual grade (PRG) were significant predictors.
• Shorter LCD and larger MWUESO positively predicted good swallowing outcomes.
• Higher PRG negatively predicted good swallowing outcomes, with AUCs ranging from 0.681 to 0.767.

Conclusions:

• Specific VFSS parameters can effectively predict swallowing recovery in stroke patients.
• These findings offer valuable insights for developing targeted therapeutic interventions for post-stroke dysphagia.
• Prognostic factor identification aids in optimizing rehabilitation strategies and improving patient outcomes.