نتایج جستجو برای: esophageal distention
تعداد نتایج: 49158 فیلتر نتایج به سال:
Intravenous administration of dopamine produced a dose-dependent decrease in lower esophageal sphincter pressure and a dose dependent increase in contractile activity of the body of the esophagus. The threshold dose of dopamine was 0.25 mug/kg, and the effect reached a plateau at about 6 mug/kg. A dose of 6 mug/kg of dopamine produced 83%+/-3 (SE) reduction in the lower esophageal sphincter pre...
Sensitization of esophageal sensory afferents by inflammatory mediators plays an important role in esophageal nociception. We have shown esophageal mast cell activation induces long-lasting mechanical hypersensitivity in vagal nodose C-fibers. However, the roles of mast cell mediators and downstream ion channels in this process are unclear. Mast cell tryptase via protease-activated receptor 2 (...
This study aimed to determine the interactions between closely paired swallow-induced primary peristalsis (PP) and air injection-induced secondary peristalsis (SP). Ten subjects (7 men, 18-42 yr) were studied using a catheter, including two sleeves (upper and lower esophageal sphincters), a midesophageal infusion port, and seven esophageal and two pharyngeal recording sites. Ten iterations of P...
CONTEXT Development of a second primary malignancy after an index esophageal cancer is a rare event, primarily due to short survival of patients with esophageal cancer. However, the number of long-term esophageal cancer survivors has been increasing due to advances in early detection and therapy. CASE REPORT We report herein a case of pancreatic adenocarcinoma that developed three years after...
OBJECTIVES/HYPOTHESIS Dysfunction of the upper esophageal sphincter (UES) is a common cause of oral-pharyngeal dysphagia (OPD). Dilation is a primary treatment, although current techniques are subject to a high rate of failure and recurrence. Devices available for UES dilation are cylindrical and were designed to distend the round lumen of the esophagus. Our objective was to determine the cross...
The patient is a 12 year-old girl who has been suffering from episodes of in testinal obstruction since she was 6 years old, leading to severe malnutrition, malabsorption and growth retardation. Repeated radiological examinations revealed esophageal achalasia, gastric distention, marked small intestinal and mild colonic dilatation. Transmural biopsies from small and large bowels showed normal ...
Background: Congenital hepatic fibrosis (CHF) is an autosomal hereditary disorder affecting the porto-biliary system. It is a rare hereditary disorder often presenting in childhood or adolescence with hepatomegaly, splenomegaly, and gastrointestinal bleeding. A timely diagnosis of organomegalies by sonography can prevent esophageal varices. Liver transplantation is now the only...
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