The Dysphagia Outcome and Severity Scale (DOSS) and non-instrumental swallowing measures in amyotrophic lateral sclerosis

Abstract Purpose To evaluate reliability of the Dysphagia Outcome and Severity Scale (DOSS) in Amyotrophic Lateral Sclerosis (ALS) patients, and to assess diagnostic accuracy of selected non-instrumental measures in defining swallowing safety in this population. Methods One hundred and thirteen consecutive ALS patients underwent comprehensive dysphagia evaluation with fiberoptic endoscopic evaluation of swallowing (FEES) and were classified according to DOSS. Safe and unsafe swallowing were defi