RESUMO
OBJECTIVES: Dysphagia due to stroke has a high prevalence, and evaluating the swallowing function of dysphagia and promoting oral intake is essential in patients with stroke. The psoas muscle mass indexï¼cm2/height2ï¼m2ï¼ï¼, calculated by the psoas muscle area at the L3 level via abdominal computed tomography ï¼CTï¼, can predict the development of dysphagia. However, knowledge about the impact of CT-based skeletal muscle mass on swallowing recovery, remains unknown. Therefore, we investigated whether CT-based low skeletal muscle mass impacted swallowing recovery. METHODS: A retrospective cohort study was conducted on patients with post-stroke dysphagia who underwent acute treatments along with a videofluoroscopic swallowing studyï¼VFSSï¼. Swallowing recovery was identified as the improvement of the Functional Oral Intake Scale ï¼FOISï¼ from the time of VFSS to dischargeï¼observational period: ObPdï¼. The psoas muscle mass index's cut-off values for low skeletal muscle mass were 3.74 cm2/m2 and 2.29 cm2/m2 for men and women respectively. RESULTS: There were 53 subjects ï¼36 male, median age 73.9ï¼. The median during the ObPd was 26 days, and the median days from onset to admission and admission to VFSS were 0 and 18, respectively. Sixteen patients had low skeletal muscle mass. The median improvement of FOIS during the ObPd was 2, and the median length of hospital stay was 51 days. In the stepwise multiple linear regression analysis for the improvement of FOIS during the ObPd, low skeletal muscle mass ï¼ß - 0.245; 95% confidence interval - 2.248 to - 0.127; p = 0.029ï¼ was a significant factor, even adjusted for serum albumin at admission, disturbance of consciousness at VFSS, FOIS at VFSS, and aspiration during VFSS. CONCLUSION: CT-based low skeletal muscle mass negatively impacted swallowing recovery during the ObPd in patients with post-stroke dysphagia.
