[The status of the receptor-controlled calcium metabolism of the thrombocytes in patients in the early postoperative period].

Basic changes in receptor-controlled platelet calcium metabolism that occur in the early postoperative period under the effect of aggregation-inducing hormones--platelet activation factor (PAF), adenosine phosphate (ADP) and vasopressin--are reviewed. Patients after lung surgery and patients with ischemic heart disease after aortocoronary bypass surgery have been examined. Patients operated on for malignant lung tumours developed increased postoperative sensitivity to ADP, while in patients after aortocoronary bypass surgery the early postoperative period was characterized by decreased sensitivity to PAF and vasopressin.