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Published on: October 24, 2018
Prolonged venovenous extracorporeal membrane oxygenation in a child with leukemia and persistent bacteremia
Jacqueline Ong1, Nicola Ngiam, Winn M M Aye
1Department of Paediatrics, National University Health System, Singapore.
Insights
Persistent bacteremia during extracorporeal membrane oxygenation (ECMO) in a pediatric patient with leukemia did not preclude a positive outcome. The patient successfully recovered after 38 days of ECMO, with bacteremia resolving upon decannulation.
Area of Science:
- Pediatric critical care medicine
- Infectious disease management
- Extracorporeal life support
Background:
- Nosocomial bacteremia during prolonged extracorporeal membrane oxygenation (ECMO) poses a clinical challenge.
- The association between persistent bacteremia and outcomes in ECMO patients is not well-defined.
Observation:
- A 6-year-old boy with acute myeloid leukemia required venovenous ECMO for refractory hypoxia due to nosocomial pneumonia.
- Stenotrophomonas maltophilia bacteremia persisted throughout the 38-day ECMO course despite combination antibiotic therapy and circuit exchange.
Findings:
- The patient was successfully decannulated from ECMO after 38 days, at which point bacteremia resolved.
- The patient achieved a complete recovery and remained disease-free at 6-month follow-up.
Implications:
- Sustained bacteremia during ECMO should not automatically lead to withdrawal of support.
- Aggressive source control and early consideration for ECMO weaning are crucial in managing persistent bacteremia.
Objective:
In patients who require extracorporeal membrane oxygenation for prolonged periods, it is uncertain whether nosocomial bacteremia that persists throughout an entire extracorporeal membrane oxygenation run can be associated with good outcomes.
Design:
Case report.
Setting:
Tertiary pediatric intensive care unit.
Patient:
A 6-yr-old boy with acute myeloid leukemia and prolonged mechanical ventilatory support.
Interventions:
Venovenous extracorporeal membrane oxygenation.
Measurements And Main Results:
The patient required extracorporeal membrane oxygenation for refractory hypoxia secondary to nosocomial pneumonia. On day 2 of the extracorporeal membrane oxygenation run and every day thereafter, blood cultures were consistently positive for Stenotrophomonas maltophilia despite combination therapy with intravenous polymyxin B and cotrimoxazole. Excluding the cannulae, the extracorporeal membrane oxygenation circuit was electively changed once during the run but without any effect on bacteremia. After 38 days of extracorporeal membrane oxygenation, the patient was successfully decannulated and the bacteremia ceased. He remains completely well and disease-free at 6-month follow-up.
Conclusions:
Sustained bacteremia during an extracorporeal membrane oxygenation run should not be regarded as a reason to withdraw extracorporeal support, although efforts are clearly warranted to identify possible sources of sepsis and wean off extracorporeal membrane oxygenation at the earliest opportunity.
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