Ventricular Arrhythmias During Extracorporeal Circulatory Support for Cardiac Indications: Outcomes in a Single-Center Retrospective Cohort, 2020-2023.

May 8, 2026

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Key Points

This study aims to evaluate the prevalence of arrhythmias in pediatric patients on ECMO and their association with adverse outcomes.
Single-center, retrospective cohort from 2020 to 2023
Analyzed 74 pediatric patients undergoing ECMO for cardiac indications
Measured arrhythmia occurrence and related outcomes such as mortality and ECMO wean failure.
Arrhythmias occurred in 33% of ECMO runs (27 of 83), with 17% specifically being ventricular arrhythmias (14 of 83 runs).
Ventricular arrhythmias were linked to a significant increased hazard of death or heart transplantation (HR 5.7; p=0.03) and wean failure (HR 18.8; p=0.002).
Patients with any arrhythmia had a longer ECMO duration (189 hours), with ventricular arrhythmias resulting in even longer durations (335 hours).

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Retrospective cohort examines arrhythmias in pediatric ECMO patients, linking ventricular arrhythmias to worse outcomes.

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Patten et al. (2026) studied this question.

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