The protective effect of a leucocyte removal filter on the lung in open-heart surgery for ventricular septal defect

Abstract

We elucidated the protective effect of a leucocyte removal filter on cardiopulmonary bypass (CPB)-induced lung dysfunction during open-heart surgery for ventricular septal defect (VSD). Forty-six VSD patients were divided into two groups: (a) a control group of 22 patients in whom the banked blood was used to prime the CPB circuit, and (b) a leucocyte removal group of 24 patients in whom a leucocyte removal filter was used for priming and every supplement of banked blood during and after the operation. The respiratory index immediately after the CPB was significantly lower in the leucocyte removal group than in the control group (2.23 ± 0.22 vs 3.90 ± 0.68; p < 0.05). The duration of stay in the intensive care unit was significantly shorter in the leucocyte removal group (3.0 ± 0.4 vs 4.1 ± 0.4 days; p < 0.05). These data suggest that the use of a leucocyte removal filter for blood added to the CPB prime or administered after CPB may have protective effects on lung function after open heart surgery for VSD patients.

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