• B P Bidstrup, D Royston, R N Sapsford, and K M Taylor.
• Humana Hospital Wellington, England.
• J. Thorac. Cardiovasc. Surg. 1989 Mar 1;97(3):364-72.

AbstractThe effect of high dose aprotinin (Trasylol) was evaluated in three groups of patients undergoing cardiopulmonary bypass. In a prospective, placebo-controlled, double-blind study, 80 patients having primary aorta-coronary bypass grafting received aprotinin (700 mg approximately) or saline placebo from the beginning of the procedure until skin closure. Standardized anesthetic, perfusion, and surgical techniques were used. The total loss from the thoracic drains was significantly reduced in the aprotinin group as compared with the loss in the placebo group (309 +/- 133 ml versus 573 +/- 166 ml, p less than 0.01; mean +/- standard deviation). There was a threefold difference in the total hemoglobin loss into the chest drains (aprotinin 12.0 +/- 12.6 gm versus placebo 37.7 +/- 18.3 gm). Patients of the aprotinin group received remarkably less bank blood postoperatively: 13 units total compared with 75 units. Of the 40 patients in the aprotinin group, 32 received no bank blood compared with 2 of 37 patients in the placebo group. Venous hemoglobin levels preoperatively, on day 1, and on day 7 postoperatively did not differ between the groups. At day 7 the values were 13.1 +/- 1.4 gm/dl versus 12.5 +/- 1.2 gm/dl in the aprotinin group and the placebo group, respectively. Platelet counts determined at fixed times perioperatively did not differ between the two groups. In contrast, template bleeding time measured in 32 study patients was distinctly different between groups, with a postoperative rise of 6.2 +/- 2.1 minutes in the placebo group opposed to only 1.5 +/- 1.1 minutes in the aprotinin group.(ABSTRACT TRUNCATED AT 250 WORDS)

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