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Outcomes in children with refractory pneumonia supported with extracorporeal membrane oxygenation
Nathan Smalley1, Graeme MacLaren, Derek Best
1Paediatric Intensive Care Unit, Royal Children's Hospital, Melbourne, Australia. nathansmalley@me.com
Insights
Extracorporeal membrane oxygenation (ECMO) for severe pediatric pneumonia has improved survival rates to 90% in recent years. Key factors impacting survival include circuit changes and continuous renal replacement therapy.
Area of Science:
- Pediatric Critical Care Medicine
- Respiratory Medicine
- Cardiopulmonary Support
Background:
- Severe pediatric pneumonia presents a significant challenge in intensive care settings.
- Extracorporeal membrane oxygenation (ECMO) is a vital life support modality for critically ill children.
- Understanding factors influencing ECMO efficacy in pneumonia is crucial for improving outcomes.
Purpose of the Study:
- To review the utilization of ECMO in severe pediatric pneumonia.
- To evaluate factors affecting the efficacy of ECMO treatment for this condition.
Main Methods:
- A retrospective analysis of a tertiary pediatric intensive care unit's ECMO database.
- Chart review of patients treated with ECMO for severe pneumonia over 23 years.
- Comparison of outcomes based on pneumonia type, ECMO configuration, acquisition, and time period.
Main Results:
- Fifty patients (52 cases) with severe pneumonia were treated with ECMO.
- Community-acquired pneumonia cases exhibited higher illness severity.
- Survival rates improved significantly after 2005, reaching 88.2%.
Conclusions:
- Pediatric survival for pneumonia requiring ECMO has improved, now approaching 90%.
- Performing ECMO circuit changes and utilizing continuous renal replacement therapy are associated with increased mortality risk.
- Optimizing ECMO management strategies can further enhance survival in severe pediatric pneumonia.
Purpose:
To review the use of extracorporeal membrane oxygenation (ECMO) in severe paediatric pneumonia and evaluate factors that may affect efficacy of this treatment.
Methods:
Retrospective study of the ECMO database of a tertiary paediatric intensive care unit and chart review of all patients who were managed with ECMO during their treatment for severe pneumonia over a 23-year period. The main outcome measures were survival to hospital discharge, and ICU and hospital length of stay. We compared the groups of culture-positive versus culture-negative pneumonia, venoarterial (VA) versus venovenous (VV) ECMO, community- versus hospital-acquired cases, and cases before and after 2005.
Results:
Fifty patients had 52 cases of pneumonia managed with ECMO. Community-acquired cases were sicker with higher oxygenation index (41.5 ± 20.5 versus 26.8 ± 17.8; p = 0.031) and higher inotrope score [20 (5-37.5) versus 7.5 (0-18.8); p = 0.07]. Use of VA compared with VV ECMO was associated with higher inotrope scores [20 (10-50) versus 5 (0-20); p = 0.012]. There was a trend towards improved survival in the VV ECMO group (82.4 versus 62.9 %; p = 0.15). Since 2005, patients have been older [4.7 (1-8) versus 1.25 (0.15-2.8) years; p = 0.008] and survival has improved (88.2 versus 60.0 %; p = 0.039).
Conclusions:
Survival in children with pneumonia requiring ECMO has improved over time and is now 90 % in the modern era. Risk factors for death include performing a circuit change [odds ratio (OR) 5.0; 95 % confidence interval (CI) 1.02-24.41; p = 0.047] and use of continuous renal replacement therapy (OR 4.2; 95 % CI 1.13-15.59; p = 0.032).
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