关键词: 卒中; 误吸; 喉上提速度; 危险因素

Abstract: Objective To identify the correlation between amplitude of larynx elevation, velocity of larynxelevation, the time of larynx closure, delayed time of pharyngeal swallow and aspiration.Methods Total 63 consecutive stroke patients consulted to dysphagia rehabilitation group wereundertaken videofluoroscopic swallowing study after drinking 5 ml 60% w/v barium. Aspiration,amplitude of larynx elevation, velocity of larynx elevation, closure time of larynx and delayed timeof pharyngeal swallow were recorded. According to aspiration or not, patients were resigned into 2groups. The correlation between the four parameters and aspiration was investigated.Results There was significant difference in closure time of larynx(P =0.035) and velocity of larynxelevation(P =0.002)between patients groups with or without aspiration. Decreased velocity oflarynx elevation was an independent risk factor of aspiration among these parameters by Logisticregression analysis (OR 0.994, 95%CI 0.989-1.000, P = 0.046).Conclusion Decreased velocity of larynx elevation is an independent risk factor of aspiration afterstroke.

Key words: Stroke; Aspiration; Velocity of larynx elevation; Risk factor