Hepato-gastroenterology · 2001
Rapid diagnosis of choledocholithiasis using biochemical tests in patients undergoing laparoscopic cholecystectomy.
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Wang C H, Mo L R, Lin R C, Kuo J Y, Chang K K
Аннотация
BACKGROUND/AIMS: The present study was designed to identify the biochemical tests which could detect the presence of common bile duct stones in patients with symptomatic gallstones, without other invasive investigations. The usefulness of biochemical tests may reduce the necessity of endoscopic retrograde cholangiopancreatography prior to laparoscopic cholecystectomy.
METHODOLOGY: 3000 patients with symptomatic laparoscopic cholecystectomy scheduled for laparoscopic cholesystectomy were included in the study. 458 patients (201 men, 257 women; mean age, 57.7 +/- 14.6 yrs) were examined with endoscopic retrograde cholangiopancreatography for suspected common bile duct stones. The serum tests for liver function, including a measurement of aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, total bilirubin, direct bilirubin, gamma-glutamyltransferase and albumin were obtained on admission prior to the ultrasonography, and the endoscopic retrograde cholangiopancreatography.
RESULTS: The six significant factors, including alkaline phosphatase, direct bilirubin, total bilirubin, aspartate aminotransferase, alanine aminotransferase and gamma-glutamyltransferase were identified by the univariate analysis and the multivariate logistic regression analysis which identified alkaline phosphatase and gamma-glutamyltransferase, as the two significant independent factors. A statistical model was developed with a formula of [formula: see text] A curve of receiver operating characteristics was constructed to identify an alkaline phosphatase level greater than 300 U/L or a gamma-glutamyltransferase level greater than 420 mU/mL which would have both higher sensitivity and specificity.
CONCLUSIONS: Biochemical tests can be a significant aid to the clinician's decision-making when predicting the presence of common bile duct stones in patients with gallstones.
METHODOLOGY: 3000 patients with symptomatic laparoscopic cholecystectomy scheduled for laparoscopic cholesystectomy were included in the study. 458 patients (201 men, 257 women; mean age, 57.7 +/- 14.6 yrs) were examined with endoscopic retrograde cholangiopancreatography for suspected common bile duct stones. The serum tests for liver function, including a measurement of aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, total bilirubin, direct bilirubin, gamma-glutamyltransferase and albumin were obtained on admission prior to the ultrasonography, and the endoscopic retrograde cholangiopancreatography.
RESULTS: The six significant factors, including alkaline phosphatase, direct bilirubin, total bilirubin, aspartate aminotransferase, alanine aminotransferase and gamma-glutamyltransferase were identified by the univariate analysis and the multivariate logistic regression analysis which identified alkaline phosphatase and gamma-glutamyltransferase, as the two significant independent factors. A statistical model was developed with a formula of [formula: see text] A curve of receiver operating characteristics was constructed to identify an alkaline phosphatase level greater than 300 U/L or a gamma-glutamyltransferase level greater than 420 mU/mL which would have both higher sensitivity and specificity.
CONCLUSIONS: Biochemical tests can be a significant aid to the clinician's decision-making when predicting the presence of common bile duct stones in patients with gallstones.