Bloodless Cardiac Surgery Utilizing a New Low‐Prime Oxygenator

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Abstract
Consecutive patients (100) undergoing open-heart surgery were subjected to a prospective protocol designed for reduction of homologous blood utilization. The main points of this protocol were careful surgical hemostasis, normovolemic hemodilution and retransfusion of blood lost to the operating field. It included use of the new Bentley BOS-10 Spiraflo oxygenator. The patient''s ages ranged from 6-68 yr and their weights from 18-84 kg. Fifty-four patients were subjected to valvular surgery, 30 to coronary revascularization, 13 to congenital defects repair and 3 to atrial myxoma resection. All patients could be weaned from bypass without receiving any blood. Eighty patients completed their surgery, and 60 were discharged from the intensive care unit without receiving any homologous blood or its derivatives. Total blood usage for the series throughout the entire hospital stay was 1.32 units/patient, which included 6 reoperations for excessive bleeding. This reduction in blood utilization was achieved without excessive hemodilution and did not produce significant complications.