Jain A C, Bowyer A F, Marshall R J, Asato H
Am J Cardiol. 1977 Jan;39(1):27-31. doi: 10.1016/s0002-9149(77)80006-4.
Twenty normal subjects and 25 patients with coronary artery disease underwent systolic time interval analysis before and after rapidly smoking two cigarettes. A slight increase in heart rate and arterial pressure was seen in both groups. In patients with coronary artery disease, preejection period/left ventricular ejection time ratio increased; in normal subjects it decreased. Left ventricular performance is diminished after cigarette smoking among subjects who have preexisting significant coronary artery disease.
20名正常受试者和25名冠心病患者在快速吸两支烟前后接受了收缩期时间间期分析。两组均出现心率和动脉压略有升高。冠心病患者的射血前期/左心室射血时间比值增加；正常受试者该比值降低。在已有明显冠状动脉疾病的受试者中，吸烟后左心室功能减弱。
