Influence of Black and Brown Pigment Stone in Cholecystectomized Patients With Acute Biliary Pancreatitis
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Shou-Wu Lee1, Chi-Sen Chang1, Han-Chung Lien2
1Department of Internal Medicine, Division of Gastroenterology and Hepatology, Taichung Veterans General Hospital, Taichung, Taiwan; Department of Medicine, Chung Shan Medical University, Taichung, Taiwan.
Background:
Biliary tract stones account for the majority of cases with acute pancreatitis, and include black and brown pigment stones. The aim of the study was to compare the presentation and outcome in cholecystectomized patients with acute biliary pancreatits caused by black and brown pigment stones.
Method:
Data from patients with prior cholecystectomy and acute biliary pancreatitis were collected from January 2009 to August 2011. These cases were assigned to black or brown pigment stone groups according to the stone pattern. The general data, laboratory data, image findings and outcomes of the two groups were collected and analyzed.
Results:
A total of 98 enrolled patients, with 30 (30.6%) and 68 cases (69.4%) assigned to the black and brown pigment stone groups, respectively. The cases with black pigment stone had higher CT Severity Index scores, bilirubin, ALP, ALT, rates of cholangitis, and positive blood culture. In those with brown pigment stone, there was a higher number of ERCP evaluations performed.
Conclusion:
Cholecystectomized cases with biliary pancreatitis due to black pigment stone had a higher prevalence of laboratory cholestasis and a higher rate of cholangitis.
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