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Original Article

Confusion with the definition and diagnostic criteria for acute on chronic pancreatitis: review and recommendations

ORCID Icon, , , , , , ORCID Icon & ORCID Icon show all
Received 02 Dec 2021, Accepted 24 Jan 2022, Published online: 04 Feb 2022
 

Abstract

Objectives

Chronic pancreatitis (CP) is a fibroinflammatory disease complicated by episodes of acute inflammation (acute on chronic pancreatitis (ACP)). This entity is common, variably defined and can reflect different pathological mechanisms that requires different interventions. The aim of this study is to conduct a systematic review of how ACP is described, defined and diagnosed in the literature.

Methods

A systematic search was conducted from January 1993 to June 2020. All articles that used a term to describe ACP in adults were reviewed and definitions and diagnostic criteria were sought.

Results

After reviewing 2271 abstracts, 848 articles included a term to describe ACP. The most common descriptions were ‘acute on/in CP’ (374), ‘acute exacerbation of CP’ (345) and ‘flare(-up) of CP’ (43). Among the 848 articles, 14 included a pragmatic definition of ACP, and only 2 papers stated diagnostic criteria. These covered both acute inflammation and acute exacerbation of chronic abdominal pain.

Conclusion

There is no universally accepted term, definition or diagnostic criteria for ACP. A consensus definition is needed to improve quality and comparability of future articles as well as clinical management.

Acknowledgements

We would like to thank Mette Brandt Eriksen (Librarian, University of Southern Denmark) for her guidance in developing the search strategy.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

The data used and analysed in this study will be available from the corresponding author on judicious request.

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