Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract
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J. Gastrointest. Surg. · Sep 2005
Comparative StudyProphylactic cholecystectomy in transplant patients: a decision analysis.
Prophylactic laparoscopic cholecystectomy should be performed in solid organ transplant patients with asymptomatic cholelithiasis. Modeled, decision analytic techniques were used to evaluate the different management strategies for asymptomatic cholelithiasis in cardiac and pancreas/renal transplant recipients. The clinical outcomes of expectant management, pretransplantation prophylactic cholecystectomy, and posttransplantation prophylactic cholecystectomy were analyzed for each population. ⋯ After heart transplantation, a strategy of routine, prophylactic cholecystectomy is anticipated to result in a cost savings of $17,779 per quality-adjusted life-year. Prophylactic posttransplantation cholecystectomy is the preferred management strategy for cardiac transplant patients with incidental gallstones, resulting in decreased mortality and significant cost savings per quality-adjusted life-year. Expectant management is the preferred strategy for pancreas and/or kidney transplant recipients with asymptomatic cholelithiasis.
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J. Gastrointest. Surg. · May 2005
Comparative StudyIs routine placement of surgical drains necessary after elective hepatectomy? Results from a single institution.
Routine drainage is no longer used after many major abdominal procedures. However, the role of routine surgical drainage after hepatic resection is unclear. Of the two randomized trials published, one concluded drainage is unnecessary after hepatectomy, and another concluded it could be used after major resections only. ⋯ Multivariate analysis showed that intraoperative blood loss of 2000 ml or greater (relative risk [RR], 1.57; 95% confidence interval [CI], 1.39-1.75; P < 0.01), number of segments resected (RR, 1.4; 95% CI, 1.21-1.89; P < 0.01), and presence of steatosis/fibrosis or cirrhosis (RR, 1.6; 95% CI, 1.01-2.1; P < 0.05) to be predictive of postoperative complications. The presence of a surgical drain was not predictive of complications. Routine surgical drainage after elective hepatectomy is not necessary.
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J. Gastrointest. Surg. · May 2005
Case ReportsMirizzi syndrome and gallstone ileus: an unusual presentation of gallstone disease.
We discuss the case of a man with an unusual complication of gallstone disease. An 85-year-old patient presented to the emergency department with a 3-week history of abdominal pain in the right upper abdominal quadrant. Thoracoabdominal radiography demonstrated that the whole extrahepatic biliary tree, including the common bile duct, common hepatic duct, gallbladder, and left and right hepatic ducts, were visibly delineated by air. ⋯ This patient seems to have developed initially a cholecystohepatic fistula. Due to the acute inflammatory process, the stone eroded through the gallbladder wall and into the gastric antrum, passing from the antrum into the small bowel, where it became impacted. We suggest that the natural history of Mirizzi syndrome does not end with a cholecystobiliary fistula but that the continuous inflammation in the triangle of Calot may result in a complex fistula involving not only the biliary tract but also the adjacent viscera.
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J. Gastrointest. Surg. · Mar 2005
Review Comparative StudyCurrent management of acute pancreatitis.
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J. Gastrointest. Surg. · Mar 2005
Comparative StudyThe mechanism of microsatellite instability is different in synchronous and metachronous colorectal cancer.
MLH1 promoter hypermethylation has been described as the primary mechanism for high-frequency microsatellite instability (MSI-H) in sporadic colorectal cancers (CRCs). The underlying molecular mechanism for microsatellite instability (MSI) in synchronous and metachronous CRCs is not well described. A total of 33 metachronous CRC patients and 77 synchronous CRC patients were identified from 2884 consecutive patients undergoing cancer surgery in an academic center. ⋯ Although MSI occurred with equal frequency among patients with synchronous and metachronous CRCs, the underlying mechanism for MSI was different. Observed differences in MLH1 promoter hypermethylation and patient characteristics suggest most MSI-H synchronous CRCs in our population were sporadic in origin. In contrast, more MSI-H metachronous CRCs were associated with patient and tumor characteristics suggestive of underlying hereditary nonpolyposis CRC.