نتایج جستجو برای: esophageal distension
تعداد نتایج: 51674 فیلتر نتایج به سال:
OBJECTIVES The role of fundoplication in patients with pure type II paraesophageal hiatal hernia remains controversial. Conventional thinking suggests that because the lower esophageal sphincter is located within the abdomen, it is competent, and fundoplication is unnecessary. Few studies have used objective evaluation to guide the addition of an antireflux procedure. METHODS Fifteen consecut...
Background: Nasogastric tube (NG tube) usage was first described in 1921 by Levin. Surgeons routinely use NG tube in most esophageal resections. Considering the numerous complications caused by this tube, the uncertainty about its usefulness and the scarcity of studies conducted on the subject, particularly in esophageal cancer patients, we investigated the necessity of the NG tube in these cas...
The effect of some endogenous components -endogenous opiates, cholecystokinin (CCK), vasoactive intestinal polypeptide (VIP) and somatostatin-as inhibitory or excitatory transmitters in the local nervous pathways involved in peristaltic responses was examined. The peristaltic reflex was studied using a modification of the Trendelenberg preparation. In each preparation, the luminal distens...
CC This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Author contributions: BDC: conception and design, acquisition of data, analysis and inte...
Previous studies of distensibility of the gastroesophageal junction (GEJ) in humans have not tried to distinguish between the effects of muscle action and passive elastic tissue properties of the GEJ. We studied 15 healthy subjects (ages 23-67 yr, 11 men/4 women) by using a catheter with a highly complaint bag positioned manometrically at the GEJ. The bag was distended with air at a rate of 20 ...
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