Impact of Circuit Size on Coagulation and Hemolysis Complications in Pediatric Extracorporeal Membrane Oxygenation
ASAIO Journal, ISSN: 1538-943X, Vol: 66, Issue: 9, Page: 1048-1053
2020
- 21Citations
- 22Captures
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Metrics Details
- Citations21
- Citation Indexes21
- CrossRef21
- 21
- Captures22
- Readers22
- 22
Article Description
Extracorporeal membrane oxygenation (ECMO) circuit volume, patient size, and blood flow may influence coagulation and hemolysis complications. We performed a single-center retrospective analysis of ECMO patients over a 6.5 year period. In 299 ECMO runs, 13% required coagulation-associated circuit changes. Respiratory ECMO was associated with coagulation-associated circuit changes [odds ratio (O/R) 2.8, p < 0.05] and developed severe (plasma-free hemoglobin [pfHb] > 100 mg/dl) hemolysis (O/R 2.3, p < 0.05). Severe hemolysis and component changes were associated with hospital mortality (O/R 2.3 and 2.5, respectively, p < 0.05). The activated partial thromboplastin time (aPTT) to residence time (RT) ratio (aPTT/RT) was used as a surrogate for coagulation risk. We found that aPTT/RT > 2.5 more than doubled time to circuit change (3-8 days, p < 0.05), but aPTT/RT > 3 increased bleeding risks and hospital mortality (O/R 1.8; p < 0.1). Hemolysis was associated with patient weight and circuit to patient volume ratio (CPVR) (p < 0.05), but not pump type. Hemolysis slightly increased with transfusion (p = 0.08), and transfusion requirements increased for CPVR >50% (p < 0.1).Our data suggest that pediatric respiratory ECMO patients are more likely to develop coagulation and hemolysis complications, which are associated with increased mortality. This may result from higher inflammatory processes, which affect coagulation and red cell fragility. Minimizing circuit volume, inflammation, and red cell stress may help to reduce these two complications and their associated mortality.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85090176178&origin=inward; http://dx.doi.org/10.1097/mat.0000000000001121; http://www.ncbi.nlm.nih.gov/pubmed/31977350; https://journals.lww.com/10.1097/MAT.0000000000001121; https://dx.doi.org/10.1097/mat.0000000000001121; https://journals.lww.com/asaiojournal/Abstract/2020/09000/Impact_of_Circuit_Size_on_Coagulation_and.14.aspx
Ovid Technologies (Wolters Kluwer Health)
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