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Acute abdomen following COVID-19 vaccination: a systematic review

Cahuapaza-Gutierrez N.L.; Pajuelo-Vasquez R.; Quiroz-Narvaez C.; Rioja-Torres F.; Quispe-Andahua M.; Runzer-Colmenares F.M. · Clinical and Experimental Vaccine Research (2024) · DOI: 10.7774/cevr.2024.13.1.42

Resumen

Purpose: Conduct a systematic review of case reports and case series regarding the development of acute abdomen following coronavirus disease 2019 (COVID-19) vaccination, to describe the possible association and the clinical and demographic characteristics in detail. Materials and Methods: This study included case report studies and case series that fo-cused on the development of acute abdomen following COVID-19 vaccination. Systematic review studies, literature, letters to the editor, brief comments, and so forth were excluded. PubMed, Scopus, EMBASE, and Web of Science databases were searched until June 15, 2023. The Joanna Briggs Institute tool was used to assess the risk of bias and the quality of the study. Descriptive data were presented as frequency, median, mean, and standard deviation. Results: Seventeen clinical case studies were identified, evaluating 17 patients with acute abdomen associated with COVID-19 vaccination, which included acute appendicitis (n=3), acute pancreatitis (n=9), diverticulitis (n=1), cholecystitis (n=2), and colitis (n=2). The COVID-19 vaccine most commonly linked to acute abdomen was Pfizer-BioNTech (messenger RNA), ac-counting for 64.71% of cases. Acute abdomen predominantly occurred after the first vaccine dose (52.94%). All patients responded objectively to medical (88.34%) and surgical (11.76%) treatment and were discharged within a few weeks. No cases of death were reported. Conclusion: Acute abdomen is a rare complication of great interest in the medical and surgical practice of COVID-19 vaccination. Our study is based on a small sample of patients; there-fore, it is recommended to conduct future observational studies to fully elucidate the underly-ing mechanisms of this association. © Korean Vaccine Society.

Instituciones: Universidad Científica del Sur