H. T. Schneider

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BACKGROUND AND STUDY AIMS The aim of the study was to investigate the evolution of endoscopic sphincterotomy (EST) over a period of 25 years at its birthplace in Erlangen, Germany. PATIENTS AND METHODS A total of 3498 consecutive ESTs between 1973 and the end of 1997 were reviewed with respect to indications, technology, success, complications, therapy of(More)
BACKGROUND Mast cell hyperplasia in the gut is a feature of inflammatory bowel disease (IBD), but the role of mast cells in this disease is still unclear. Since mast cell-nerve interactions might have some impact on intestinal inflammation, the present study investigated whether the neuropeptide substance P causes histamine secretion from human gut mucosal(More)
Surgical extirpation of the affected gland has been necessary for cases of sialolithiasis in which the stone cannot be removed by dilatation or dissection of the salivary duct. The ability of the piezoelectric lithotripter to deliver shockwaves to a small focus makes extracorporeal shockwave lithotripsy of salivary gland stones potentially safe. Its safety(More)
One hundred symptomatic patients with radiolucent gallbladder stones were treated with a new piezoelectric lithotripter and oral chemolitholytic agents. Stone disintegration was achieved in 99 of these patients (99%) with a mean (+/- SD) maximum fragment size of 5.1 +/- 4.1 mm. Significant differences were found when the mean (+/- SD) fragment sizes of(More)
BACKGROUND AND STUDY AIMS The aim of the present study was to analyze the risk factors associated with complications of endoscopic sphincterotomy (ES). PATIENTS AND METHODS In all consecutive endoscopic sphincterotomies carried out between September 1994 and December 1996, the possible risk factors (12 patient-related factors and 12 procedure-related(More)
One hundred eleven symptomatic patients (91 women, 20 men) with solitary "radiolucent" stones (proved by a plain radiograph) underwent examination with computed tomography for stone analysis before extracorporeal shock-wave lithotripsy with a second-generation piezoelectric lithoptripter. The aim of the study was to assess the importance of computed(More)
BACKGROUND An exploratory analysis of a prospective study of risk factors for acute pancreatitis after ERCP combined with endoscopic sphincterotomy showed that the frequency of acute pancreatitis was lower in patients who received heparin compared with patients not treated with heparin. The study was continued to further analyze the effect of heparin on the(More)
OBJECTIVES The efficacy of extracorporeal piezoelectric shock wave lithotripsy in patients with obstructing pancreatic duct stones was investigated. METHODS Fifty patients suffering from chronic pancreatitis and obstructing pancreatolithiasis were treated by ESWL (Piezolith 2500). Shock wave treatment was administered, inasmuch as the stones were not(More)
BACKGROUND The objective of the present investigation was to assess the risks and benefits of pre-cutting with the needle knife at the papilla of Vater and to compare the findings with the results of classic endoscopic sphincterotomy. METHODS From January 1973 to December 1993, 2752 endoscopic cutting procedures-biliary or pancreatic sphincterotomy (EST)(More)
Pancreatic endotherapy is frequently performed in patients with chronic pancreatitis and stenoses of the main pancreatic duct. In a patient with long-standing chronic pancreatitis and treatment with pancreatic stents, metastatic pancreatic head carcinoma was suspected because of infiltration of the neighboring organs and hepatic lesions. Ultrasound-guided(More)