Sarcopenic Dysphagia with Low Tongue Pressure Is Associated with Worsening of Swallowing, Nutritional Status, and Activities of Daily Living

Objectives According to the recently proposed diagnostic criteria for sarcopenic dysphagia, sarcopenic dysphagia can be classified as probable or possible based on tongue pressure. However, it is unclear whether patients with probable and possible sarcopenic dysphagia have different characteristics. Therefore, this study aimed to investigate whether patients with possible and probable sarcopenic dysphagia have different clinical characteristics. Design A cross-sectional study. Setting: A rehabilitation hospital. PARTICIPANTS: In total, 129 patients aged >= 65 years with sarcopenic dysphagia were included. Methods A tongue pressure of <20 kPa was indicative of probable sarcopenic dysphagia, and a tongue pressure of >= 20 kPa was indicative of possible sarcopenic dysphagia. Kuchi-Kara Taberu (KT) index scores were compared between the probable or possible sarcopenic dysphagia groups. Results According to the tongue pressure, 76 and 53 patients were classified into the probable and possible sarcopenic dysphagia groups, respectively. In multiple linear regression analysis, the presence of probable sarcopenic dysphagia was independently associated with the total KT index score (standardized coefficient: -0.313, regression coefficient: -4.500, 95% confidence interval [CI], -6.920 to -2.080, P < 0.001). The presence of probable sarcopenic dysphagia was independently associated with some subitems of the KT index (willingness to eat, cognitive function while eating, oral preparatory and propulsive phase, severity of pharyngeal dysphagia, eating behavior, and daily living activities). Conclusions Patients with probable sarcopenic dysphagia were characterized by poor overall eating-related conditions, especially poor swallowing ability, ability to perform activities of daily living, and nutritional status.

Automated summary

This study aimed to investigate the clinical characteristics of patients with possible and probable sarcopenic dysphagia, categorizing patients based on tongue pressure into probable and possible groups. The results showed that patients with probable sarcopenic dysphagia exhibited poorer swallowing ability and activities of daily living compared to those with possible sarcopenic dysphagia.