Chronic use of statins and acetylsalicylic acid and incidence of post-endoscopic retrograde cholangiopancreatography acute pancreatitis: A multicenter, prospective, cohort study

Peri-onset non-steroidal anti-inflammatory drugs use and organ failure in acute pancreatitis: A multicenter retrospective analysis

BACKGROUND

Organ failure (OF) of acute pancreatitis (AP) significantly contributes to AP-related mortality. Non-steroidal anti-inflammatory drugs (NSAIDs) have been associated with reduced complications of AP.

AIMS

We aimed to investigate whether NSAIDs ameliorates SIRS and OF in patients with AP.

METHODS

Eligible patients with AP were retrospectively identified in 4 hospitals between January 2015 and December 2018. Associations between peri-onset NSAIDs use (day -3 to day 3) and OF, persistent OF (POF), and SIRS within the first week were analyzed. Propensity score-matched (PSM) analysis and inverse probability of treatment-weighted (IPTW) analysis were used to estimate risk ratios.

RESULTS

Among 1,528 patients with AP (97 [6.3%] with NSAIDs use), 242 (15.8%) developed organ failure, 89 (5.8%) progressed to POF, and 27 (1.8%) died within 3 months. PSM analysis showed no association between peri-onset NSAIDs and OF (risk ratio [RR], 1.00; 95% confidence interval [CI], 0.46 to 2.15) and POF (RR, 0.80; 95% CI, 0.21 to 2.98). IPTW analysis yielded similar results. Patients with and without peri-onset NSAIDs use were comparable with respect to OF, POF, and SIRS across subgroups defined by COX-2 selectivity and dose.

CONCLUSION

Peri-onset NSAIDs use was not significantly associated with reduced OF.

Pharmacological and Endoscopic Interventions for Prophylaxis of Post-Endoscopic Retrograde Cholangiopancreatography Pancreatitis

BACKGROUND

Post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP) represents the most common serious complication after endoscopic retrograde cholangiopancreatography (ERCP). Rectal non-steroidal anti-inflammatory drugs (NSAIDs) and pancreatic duct stenting (PDS) are the prophylactic interventions with more evidence and efficacy; however, PEP still represents a significant source of morbidity, mortality, and economic burden. Chronic statin use has been proposed as a prophylactic method that could be cheap and relatively safe. However, the evidence is conflicting. We aimed to evaluate the impact of endoscopic and pharmacological interventions including chronic statin and aspirin use, on the development of PEP.

METHODS

A retrospective cohort study evaluated consecutive patients undergoing ERCP at John H. Stroger, Jr. Hospital of Cook County in Chicago from January 2015 to March 2018. Univariate and multivariate analyses were performed using logistic regression.

RESULTS

A total of 681 ERCPs were included in the study. Twelve (1.76%) developed PEP. Univariate, multivariate, and subgroup analyses did not show any association between chronic statin or aspirin use and PEP. PDS and rectal indomethacin were protective in patients undergoing pancreatic duct injection. Pancreatic duct injection, female sex, and younger age were associated with a higher risk. History of papillotomy was associated with lower risk only in the univariate analysis (all P values < 0.05).

CONCLUSION

Chronic use of statins and aspirin appears to add no additional benefit to prevent ERCP pancreatitis. Rectal NSAIDs, and PDS after appropriate patient selection continue to be the main prophylactic measures. The lower incidence at our center compared with the reported data can be explained by the high rates of rectal indomethacin and PDS, the use of noninvasive diagnostic modalities for patient selection, and the expertise of the endoscopists.

Update on the management of acute pancreatitis

PURPOSE OF REVIEW

This review provides insight into the recent advancements in the management of acute pancreatitis.

RECENT FINDINGS

Moderate fluid resuscitation and Ringer's lactate has advantages above aggressive fluid resuscitation and normal saline, respectively. A normal "on-demand" diet has a positive effect on recovery from acute pancreatitis and length of hospital stay. A multimodal pain management approach including epidural analgesia might reduce unwarranted effects of opiate use. A more targeted use of antibiotics is starting to emerge. Markers such as procalcitonin may be used to limit unwarranted antibiotic use. Conversely, many patients with infected necrotizing pancreatitis can be treated with only antibiotics, although the optimal choice and duration is unclear. Delay of drainage as much as is possible is advised since it is associated with less procedures. If drainage is required, clinicians have an expanding arsenal of interventional options to their disposal such as the lumen-apposing metal stent for transgastric drainage and (repeated) necrosectomy. Immunomodulation using removal of systemic cytokines or anti-inflammatory drugs is an attractive idea, but up to now the results of clinical trials are disappointing. No additional preventive measures beside non-steroidal anti-inflammatory drugs (NSAIDs) can be recommended for post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis.

SUMMARY

More treatment modalities that are less invasive became available and a trend towards less aggressive treatments (fluids, starvation, interventions, opiates) of acute pancreatitis is again emerging. Despite recent advancements, the pathophysiology of specific subgroup phenotypes is still poorly understood which reflects the disappointing results of pharmacological and immunomodulatory trials.

Chronic use of statins and risk of post-endoscopic retrograde cholangiopancreatography pancreatitis: a systematic review and meta-analysis

BACKGROUND

There is limited evidence on the role of chronic statin therapy in the prevention of acute pancreatitis after ERCP. The aim of this meta-analysis was to evaluate the efficacy of statins in the prophylaxis of post-ERCP pancreatitis.

RESEARCH DESIGN AND METHODS

Bibliographic search was performed through May 2020. The primary outcome was post-ERCP pancreatitis rate. An additional endpoint was the rate of severe pancreatitis.

RESULTS

Nine studies, of which 1 prospective and 8 retrospective series, with 9374 patients were included. Baseline clinical and technical features were well balanced between the two study groups. Overall, pooled rate of post-ERCP pancreatitis was 4.8% (3.2%-6.4%) in the statin group and 7.1% (5.9%-8.3%) in the control group, with no difference in terms of pancreatitis rate (odds ratio 0.66, 95% confidence interval 0.43-1.02). This finding was confirmed in the multivariate analysis adjusted for several clinical and technical characteristics (adjusted odds ratio 0.68, 0.40-1.15). No difference was observed between the two study groups in terms of severe pancreatitis rate (odds ratio 1.07, 0.61-1.89).

CONCLUSIONS

Our meta-analysis seems to suggest the non-superiority of chronic statin therapy in preventing post-ERCP pancreatitis.