Objective:

rectal diclofenac is a nonsteroidal anti-inflammatory drug (NSAID) that is used to prevent pancreatitis in high-risk patients during endoscopic retrograde cholangiopancreatography (ERCP). The European Society of Gastrointestinal Endoscopy (ESGE) recommends the use of prophylaxis with indomethacin or diclofenac in all patients undergoing ERCP, including those at low or intermediate risk of pancreatitis. A study to investigate the efficacy of this recommendation was performed.

Methods:

this was a mixed cohort study. A total of 1,512 ERCP procedures performed in our institution from January 2009 to July 2016 were included in the study. Until June 2012, 718 patients did not receive diclofenac. Subsequently, 794 patients without contraindications received 100 mg of rectal diclofenac at the onset of the procedure. Risk factors for post-ERCP pancreatitis (PEAP) and PEAP cases defined using consensus criteria were recorded.

Results:

a total of 47 PEAP events (3.1%) were reported, 3.4% in the diclofenac group and 2.8% in the non-diclofenac group (p = 0.554); 26.1% of patients had risk factors for PEAP. In the diclofenac group, PEAP developed in 4.4%, 0.5% and 2.6% of subjects with intact papillae, prior sphincterotomy and extended sphincterotomy, respectively. The results were similar for the non-diclofenac group: 4% with intact papillae, 0.9% with prior sphincterotomy, and 2.5% with extended sphincterotomy, respectively. PEAP severity was similar in both groups.

Conclusions:

rectal diclofenac before ERCP did not prevent the development of post-ERCP acute pancreatitis in non-selected consecutive patients.

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