Communication Sciences and Disorders, Grover Center W218, Ohio University, Athens, OH 45701, USA.
Am J Phys Med Rehabil. 2013 Apr;92(4):320-6. doi: 10.1097/phm.0b013e318269d935.
The purposes of this study were to determine whether two bolus transition durations (oral transit time and pharyngeal transit time) were different during oropharyngeal swallowing in post-stroke patients who aspirated and who did not aspirate and to examine those differences across varying bolus viscosities.
Means and standard deviations of oral transit time and pharyngeal transit time were analyzed on 5 ml of thin and nectar thick liquids and puree swallows from videofluoroscopic swallowing examinations of 30 post-stroke patients. Statistical comparisons were made by repeated measures analysis of variance, with the within-subject variable being the three consistencies and the between-subject variable being the two groups. Significance level was set at P < 0.025.
Oral transition of the bolus did not differ between the two patient groups. Pharyngeal transition of the bolus differentiated the patients who aspirated from the patients who did not aspirate. Both the oral and pharyngeal transitions differed significantly for the puree compared with the thin and nectar thick liquids.
Patients who demonstrate prolonged pharyngeal transit times may be at risk for aspiration.
本研究旨在确定在脑卒中后吞咽时是否存在两种不同的射流过渡时间（口腔通过时间和咽通过时间），以及在不同的射流黏度下这些差异。
对 30 例脑卒中患者的视频透视吞咽检查中的 5 毫升稀薄和花蜜状液体以及泥状食物的吞咽进行分析，得出口腔通过时间和咽通过时间的均值和标准差。采用重复测量方差分析对数据进行统计比较，其中，自变量为三种稠度，因变量为两组。显著性水平设为 P < 0.025。
两组患者的射流口腔转移无差异。射流的咽转移将吸入患者与未吸入患者区分开来。与稀薄和花蜜状液体相比，泥状食物的口腔和咽通过时间均有显著差异。
表现出较长咽通过时间的患者可能有发生吸入的风险。
