【摘 要】
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AIM: To clarify the relationship between the change of serum amylase level and post-ERCP pancreatitis.METHODS: Between January 1999 and December 2002, 1291 ERCP
【机 构】
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Department of Gastroenterology
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AIM: To clarify the relationship between the change of serum amylase level and post-ERCP pancreatitis.METHODS: Between January 1999 and December 2002, 1291 ERCP-related procedures were performed.Serum amylase concentrations were measured before the procedure and 3, 6, and 24 h afterward. The frequency and severity of post-ERCP pancreatitis and the relationship between these phenomena and the change in amylase level were estimated.RESULTS: Post-ERCP pancreatitis occurred in 47 patients (3.6%). Pancreatitis occurred in 1% of patients with normal amylase levels 3 h after ERCP, and in 1%,5%, 20%, 31% and 39% of patients with amylase levels elevated 1-2 times, 2-3 times, 3-5 times, 5-10 times and over 10 times the upper normal limit at 3 h after ERCP,respectively (level ＜ 2 times vs ≥ 2 times, P ＜ 0.001).Of the 143 patients with levels higher than the normal limit at 3 h after ERCP followed by elevation at 6 h,pancreatitis occurred in 26%. In contrast, pancreatitis occurred in 9% of 45 patients with a level higher than two times the normal limit at 3 h after ERCP followed by a decrease at 6 h (26% vs 9%, P ＜ 0.05).CONCLUSION: Post-ERCP pancreatitis is frequently associated with an increase in serum amylase level greater than twice the normal limit at 3 h after ERCP with an elevation at 6 h. A decrease in amylase level at 6 h after ERCP suggests the unlikelihood of development of post-ERCP pancreatitis.
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