Abstract
Objective. To assess the coagulation system reaction and blood loss volume depending on aspirin resistance in hypertensive patients with coronary heart disease who underwent bypass surgery. Design and methods. A total of 66 patients with arterial hypertension and coronary heart disease (angina pectoris of III-IV functional class according to Canadian classification) who underwent myocardial revascularization using extracorporeal circulation were examined. All patients were divided into two groups depending on aspirin resistance phenomenon. 22 aspirin-resistant patients formed the first group, the other group consisted of 44 aspirin-sensitive patients. The patients were 49 to 68 year old, and there were 27 women and 39 men. During intraoperative and postoperative periods blood loss was measured in all subjects. Results. We showed that 22 out of 66 patients were aspirin-resistant. No relationship between blood loss volume during intraoperative and postoperative periods and aspirin resistance was observed. All hemostatic system indices regardless of aspirin resistance phenomenon changed equally in both groups.
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