Coordination of deglutitive glottal function and pharyngeal bolus transit during normal eating
Coordination of deglutitive glottal function and pharyngeal bolus transit during normal eating
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DOI：
10.1016/s0016-5085(97)70221-x
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发表时间：
1997-01-01
期刊：
影响因子：
29.4
通讯作者：
Shaker, R
中科院分区：
文献类型：
--
作者：
Dua, KS;Ren, JL;Shaker, R
背景和目标：吞咽准备阶段的吞咽声门功能及其与正常进食时食团转运的协调对于气道保护是重要的。本研究的目的是检查这种协调过程中消费的正常膳食，方法：15名健康志愿者进行了研究，使用视频内窥镜和视频荧光技术。结果：共分析了207例液体和470例固体推注吞咽。在60%的液体和76%的固体食物吞咽中，在吞咽开始前在咽部观察到食团。大丸剂进入咽部与声带的短暂部分内收有关。固体食物在中线处进入并穿过咽部，而液体食团在喉部周围分裂并在下咽部重新结合。与梨状窦或会厌谷相比，当食团接触会厌上三分之一时，吞咽开始明显更早。结论：在超过一半的情况下，在正常进食过程中，食物在吞咽开始前的准备阶段进入咽部，固体食团的咽部转运路径与液体食团的咽部转运路径不同，会厌边缘似乎是吞咽的最敏感触发区。
Background & Aims: Deglutitive glottal function during the preparatory phase of swallowing and its coordination with bolus transit during normal eating are important for airway protection. The aim of this study was to examine this coordination during consumption of a normal meal, Methods: Fifteen healthy volunteers were studied using a videoendoscopic and videofluoroscopic technique. Results: A total of 207 liquid and 470 solid bolus swallows were analyzed. In 60% of liquid and 76% of solid food swallows, the bolus was seen in the pharynx before a swallow was initiated. Entry of boluses into the pharynx was associated with brief partial adduction of the vocal cords. Solid food entered and traversed the pharynx at the midline, whereas liquid bolus was split around the larynx and rejoined in the hypopharynx. Swallowing was initiated significantly earlier when bolus made contact with the upper third of the epiglottis compared with vallecula or pyriform sinuses. Conclusions: In more than half of the instances, during normal eating, food enters the pharynx during the preparatory phase before a swallow is initiated, the path of pharyngeal transit of solid bolus is different from that of liquid bolus, and the epiglottal edge appears to be the most sensitive trigger zone for swallowing.