Volume 46, Issue 4 1 pp. 878-890
Scientific Review

Analgesia in the Initial Management of Acute Pancreatitis: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

Navamayooran Thavanesan

Navamayooran Thavanesan

Department of General Surgery, Salisbury Hospital Foundation Trust, Salisbury, UK

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Sophie White

Sophie White

Department of General Surgery, Royal Hampshire County Hospital, Winchester, UK

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Shiela Lee

Shiela Lee

Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, UK

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Bathiya Ratnayake

Bathiya Ratnayake

Surgical and Translational Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand

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Kofi W. Oppong

Kofi W. Oppong

Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, UK

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Manu K. Nayar

Manu K. Nayar

Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, UK

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Linda Sharp

Linda Sharp

Population Health Sciences Institute, Newcastle University, Newcastle, UK

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Asbjørn Mohr Drewes

Asbjørn Mohr Drewes

Department of Gastroenterology, Center for Pancreatic Diseases, Aalborg University Hospital, Aalborg, Denmark

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Gabriele Capurso

Gabriele Capurso

Pancreatico-Biliary Endoscopy and Endosonography Division, Pancreas Translational and Clinical Research Center, San Raffaele Scientific Institute IRCCS, Vita-Salute San Raffaele University, Milan, Italy

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Enrique De-Madaria

Enrique De-Madaria

Department of Gastroenterology, Hospital General Universitario de Alicante, Alicante, Spain

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Ajith K. Siriwardena

Ajith K. Siriwardena

HPB Unit, Manchester Royal Infirmary, Manchester, UK

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John A. Windsor

John A. Windsor

Surgical and Translational Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand

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Sanjay Pandanaboyana

Corresponding Author

Sanjay Pandanaboyana

Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, UK

Population Health Sciences Institute, Newcastle University, Newcastle, UK

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First published: 07 January 2022
Citations: 33

Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s00268-021-06420-w.

Abstract

Background

The optimal analgesic strategy for patients with acute pancreatitis (AP) remains unknown.

Objective

The present systematic review and meta-analysis aims to compare the efficacy of different analgesic modalities trialled in AP.

Methods

A systematic search of PubMed, MEDLINE, EMBASE, CENTRAL, SCOPUS and Web of Science conducted up until June 2021, identified all randomised control trials (RCTs) comparing analgesic modalities in AP. A pooled analysis was undertaken of the improvement in pain scores as reported on visual analogue scale (VAS) on day 0, day 1 and day 2.

Results

Twelve RCTs were identified including 542 patients. Seven trial drugs were compared: opiates, non-steroidal anti-inflammatories (NSAIDs), metamizole, local anaesthetic, epidural, paracetamol, and placebo. Across all modalities, the pooled VAS scores showed global improvement from baseline to day 2. Epidural analgesia appears to provide the greatest improvement in VAS within the first 24 h but is equivalent to opiates by 48 h. Within 24 h, NSAIDs offered similar pain-relief to opiates, while placebo also showed equivalence to other modalities but then plateaued. Local anaesthetics demonstrated least overall efficacy. VAS scores for opiate and non-opiate analgesics were comparable at baseline and day 1. The identified RCTs demonstrated significant statistical and methodological heterogeneity in pain-relief reporting.

Conclusions

There is remarkable paucity of level 1 evidence to guide pain management in AP with small datasets per study. Epidural administration appears effective within the first 24 h of AP although infrequently used and featured in only a single RCT. NSAIDs are an effective opiate sparing alternative during the first 24 h.

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