• Crit Care Resusc · Sep 2013

    Review Meta Analysis

    A meta-analysis of complications and mortality of extracorporeal membrane oxygenation.

    • Alberto Zangrillo, Giovanni Landoni, Giuseppe Biondi-Zoccai, Massimiliano Greco, Teresa Greco, Giacomo Frati, Nicolò Patroniti, Massimo Antonelli, Antonio Pesenti, and Federico Pappalardo.
    • Department of Anesthesia and Intensive Care, San Raffaele Scientific Institute, Milan, Italy.
    • Crit Care Resusc. 2013 Sep 1; 15 (3): 172-8.

    ObjectiveTo comprehensively assess published peer-reviewed studies related to extracorporeal membrane oxygenation (ECMO), focusing on outcomes and complications of ECMO in adult patients.DesignSystematic review and meta-analysis.Data SourcesMEDLINE/PubMed was searched for articles on complications and mortality occurring during or after ECMO.Data ExtractionIncluded studies had more than 100 patients receiving ECMO and reported in detail fatal or nonfatal complications occurring during or after ECMO. Primary outcome was mortality at the longest follow-up available; secondary outcomes were fatal and non-fatal complications.Data SynthesisTwelve studies were included (1763 patients), mostly reporting on venoarterial ECMO. Criteria for applying ECMO were variable, but usually comprised acute respiratory failure, cardiogenic shock or both. After a median follow-up of 30 days (1st-3rd quartile, 30-68 days), overall mortality was 54% (95% CI, 47%-61%), with 45% (95% CI, 42%-48%) of fatal events occurring during ECMO and 13% (95% CI, 11%-15%) after it. The most common complications associated with ECMO were: renal failure requiring continuous venovenous haemofiltration (occurring in 52%), bacterial pneumonia (33%), any bleeding (33%), oxygenator dysfunction requiring replacement (29%), sepsis (26%), haemolysis (18%), liver dysfunction (16%), leg ischaemia (10%), venous thrombosis (10%), central nervous system complications (8%), gastrointestinal bleeding (7%), aspiration pneumonia (5%), and disseminated intravascular coagulation (5%).ConclusionsEven with conditions usually associated with a high chance of death, almost 50% of patients receiving ECMO survive up to discharge. Complications are frequent and most often comprise renal failure, pneumonia or sepsis, and bleeding.

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