Blood transfusion requirements and independent predictors of increased transfusion requirements among adult patients on extracorporeal membrane oxygenation -- a single centre experience

Vox Sanguinis
A L AngM B C Koh

Abstract

More adults undergo extracorporeal membrane oxygenation (ECMO) now. They have high transfusion requirements. This study described transfusion requirements of adults during ECMO in a single institution, and determined factors associated with high transfusion requirements. Retrospective analysis was done on the amount of blood products received by adults during ECMO. Predictors of increased average daily transfusion requirements during ECMO and increased ECMO duration (which correlated positively with total transfusion requirements) were determined. Forty-one patients (median age 50 years) underwent 42 ECMO sessions for respiratory failure (16.7%), cardiogenic shock (76.2%) or massive pulmonary embolism (7.1%). They received 569 red blood cells, 852 platelets, 126 fresh-frozen plasma (FFP) and 220 cryoprecipitate in total during median ECMO duration of 5 (1-15) days. On multivariate analysis, average daily red blood cell transfusion increased with nadir haemoglobin (Hb) during ECMO (Hb(nadir)) of < 7.5 g/dl (P < 0.001). Average daily platelet transfusion increased with recent antiplatelet agents (P = 0.015) and maximum Hb decline of > 5.5 g/dl during ECMO (P = 0.011). Average daily platelet transfusion > 3 units was also associat...Continue Reading

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