Beat Burckhardt

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BACKGROUND & AIMS Emergency endoscopy may be difficult in upper gastrointestinal bleeding when blood obscures the visibility. Erythromycin, a motilin agonist, induces gastric emptying. We investigated whether an intravenous bolus infusion of erythromycin would improve the yield of endoscopy in these patients. METHODS Patients admitted within 12 hours(More)
End stage renal disease is a major complication after orthotopic liver transplantation (OLT). Vasoconstriction of renal arterial vessels because of calcineurin inhibitor (CNI) treatment plays a pivotal role in the development of renal insufficiency following OLT. Renal resistance can be measured non-invasively by determining the resistance index (RI) of(More)
BACKGROUND & AIMS The hypothesis that cholecystokinin release requires adequate dietary fat digestion in the small intestine was investigated in 10 healthy volunteers, and the consequences of reduced fat hydrolysis on pancreaticobiliary secretions were assessed. METHODS Fat hydrolysis was inhibited by intraduodenal perfusion of tetrahydrolipstatin, an(More)
Studies were designed to establish the acid inhibitory potency and plasma kinetics of somatostatin-28 (S-28) in humans and to determine whether the amount of S-28 released into the circulation after a meal is sufficient to regulate gastric acid secretion. A liquid meal induced a significant increase of S-28 (P < 0.01) whereas S-14 levels did not change.(More)
CCK8 is a poor stimulant of gastric acid secretion in vivo, but is equipotent to gastrin-17 (G17) in in vitro systems. To further evaluate the role of cholecystokinin (CCK) in regulating acid output in humans, dose-response curves were constructed to CCK8 or G17 (6.4-800 pmol kg-1 per h) with and without a specific CCK-A receptor antagonist (loxiglumide).(More)
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