Comportamento do fluxo arterial periférico em pacientes submetidos à cirurgia cardíaca.

Abstract

Purpose: To analyze the behavior of the peripheral arterial flow and the presence of intermittent claudication in patients hospitalized for coronary artery bypass graft surgery and valve replacement with cardiopulmonary bypass. Methods: Cross-sectional study, carried out from May to September 2015, with patients undergoing cardiac surgery with cardiopulmonary bypass. Sample of seven patients (five men and two women) with a mean age of 55.3 ± 10.0 years and a BMI 28.9 ± 5.2 Kg/m2. They were assessed by the Edinburgh Claudication Questionnaire and ankle-brachial index, in three stages, in the preoperative period, immediate postoperative period (IPP) and before hospital discharge (pre-discharge). Results: There was significant increase in the ankle-brachial index in IPP (p= 0.023) as compared to the preoperative period. However, the pre-discharge values tend to return to those obtained preoperatively. Direct and strong associations were observed between the overall ankle-brachial index with cardiopulmonary bypass time, where the higher is this period the shorter is the ankle-brachial index, both in IPP and in the pre-discharge. The presence of intermittent claudication was 42.9%. Conclusion: An important presence of intermittent claudication was observed in our sample, direct and strong associations were observed between general ankle-brachial index with cardiopulmonary bypass time, where the higher its period is the shorter the ankle-brachial index, both in the immediate postoperative and in the pre-discharge also suffered an increase in the ankle-brachial index in immediate postoperative period compared to the preoperative period.