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Updated: May 25, 2026

Pediatric Animal Model of Extracorporeal Cardiopulmonary Resuscitation After Prolonged Circulatory Arrest
Published on: May 26, 2023
Extracorporeal membrane oxygenation following pediatric cardiac surgery: development and outcomes from a
Hideshi Itoh1, S Ichiba, Y Ujike
1Department of Cardiovascular Surgery, Okayama University Hospital, Okayama, Japan. grape@md.okayama-u.ac.jp
Insights
An aggressive approach to extracorporeal membrane oxygenation (ECMO) significantly improves survival rates in pediatric cardiac surgery patients compared to a delayed strategy. This early intervention reduces ECMO duration and enhances patient outcomes.
Area of Science:
- Cardiology
- Pediatric Surgery
- Critical Care Medicine
Background:
- Extracorporeal membrane oxygenation (ECMO) is a vital support for pediatric cardiac surgery patients with respiratory or cardiac failure.
- Clear indications for ECMO use in this population remain undefined, necessitating further research into optimal timing and strategies.
Purpose of the Study:
- To compare the effectiveness of an aggressive versus a delayed ECMO approach in pediatric patients undergoing cardiac surgery.
- To identify if early ECMO initiation improves survival and reduces support duration.
Main Methods:
- Retrospective review of 76 pediatric patients with congenital heart disease who received ECMO post-cardiac surgery.
- Comparison of outcomes between an aggressive ECMO group (April 2005-October 2010) and a delayed ECMO group (January 1997-March 2005).
- Analysis of demographics, diagnoses, operative variables, ECMO indications, and duration for survivors and non-survivors.
Main Results:
- The aggressive ECMO group showed significantly higher survival and discharge rates (75.5% weaned, 57.7% discharged) compared to the delayed ECMO group (25.8% weaned, 6.5% discharged).
- Patients in the aggressive ECMO group experienced a significantly shorter ECMO duration (96.5 ± 62.9 hours) among survivors.
- Survival rates for patients with shunted single ventricle physiology were low overall, but the aggressive approach still demonstrated better outcomes within this subgroup.
Conclusions:
- An aggressive ECMO approach is a superior strategy for pediatric cardiac surgery patients experiencing respiratory and cardiac failure.
- Early initiation of ECMO in this vulnerable population leads to improved survival rates and reduced duration of mechanical support.
- The findings support the implementation of an aggressive ECMO strategy to enhance outcomes in neonatal and pediatric cardiac care.
Abstract:
Extracorporeal membrane oxygenation (ECMO) has emerged as an effective mechanical support following cardiac surgery with respiratory and cardiac failure. However, there are no clear indications for ECMO use after pediatric cardiac surgery. We retrospectively reviewed medical records of 76 pediatric patients [mean age, 10.8 months (0-86); mean weight, 5.16 kg (1.16-16.5)] with congenital heart disease who received ECMO following cardiac surgery between January 1997 and October 2010. Forty-five patients were treated with an aggressive ECMO approach (aggressive ECMO group, April 2005-October 2010) and 31 with a delayed ECMO approach (delayed ECMO group, January 1997-March 2005). Demographics, diagnosis, operative variables, ECMO indication, and duration of survivors and non-survivors were compared. Thirty-four patients (75.5%) were successfully weaned from ECMO in the aggressive ECMO group and 26 (57.7%) were discharged. Conversely, eight patients (25.8%) were successfully weaned from ECMO in the delayed ECMO group and two (6.5%) were discharged. Forty-five patients with shunted single ventricle physiology (aggressive: 29 patients, delayed: 16 patients) received ECMO, but only 15 (33.3%) survived and were discharged. The survival rate of the aggressive ECMO group was significantly better when compared with the delayed ECMO group (p<0.01). Also, ECMO duration was significantly shorter among the aggressive ECMO group survivors (96.5 ± 62.9 h, p<0.01). Thus, the aggressive ECMO approach is a superior strategy compared to the delayed ECMO approach in pediatric cardiac patients. The aggressive ECMO approach improved our outcomes of neonatal and pediatric ECMO.
