心绞痛患者吸氧时的中心血流动力学
Central haemodynamics during oxygen breathing in angina pectoris.
作者信息
Lecerof H
出版信息
Thorax. 1974 Nov;29(6):673-7. doi: 10.1136/thx.29.6.673.
Abstract
, , 673-677. The haemodynamic effects of breathing 100% oxygen have been studied by right heart catheterization at rest and during bicycle exercise in nine male patients with coronary heart disease. Oxygen breathing produced no significant haemodynamic benefit during angina pectoris induced by physical exercise, although at rest a reduction in heart rate and cardiac index was evident. The favourable effects of 100% oxygen breathing described in pacing-induced angina pectoris cannot therefore be transferred to exercise-induced angina probably because the myocardial blood flow during the latter condition is hampered by an increased left ventricular end-diastolic pressure.
摘要
673 - 677。通过右心导管插入术，对9名冠心病男性患者在静息状态和自行车运动期间呼吸100%氧气的血流动力学效应进行了研究。在体育锻炼诱发心绞痛期间，吸氧未产生明显的血流动力学益处，尽管在静息状态下心率和心脏指数明显降低。因此，在起搏诱发的心绞痛中所描述的100%吸氧的有益作用可能无法转移至运动诱发的心绞痛，这可能是因为在后一种情况下，左心室舒张末期压力升高会阻碍心肌血流。
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