The global use of noninvasive respiratory support provided by different supportive ventilation delivery methods (SVDMs) has increased. but the impact of these devices on the upper airway structures of patients with amyotrophic lateral sclerosis (ALS) is not known. We aimed to compare the pharyngeal cross-sectional area during spontaneous breathing with four different SVDMs: intranasal... https://www.rawafricaonline.com/