CRP and acute pancreatitis: CRP levelsbefore and within 24 hours after ERCP in the patients who underwent ERCP and thoseof the control group with acute pancreatitis were not different from one other.In serial measurements of complicated and uncomplicated patients, serum amylaselevels at 12 and 24 hours after ERCP were higher than those of the basal levels(P = .018 and P < .001, resp).