高血压与心脏作功、心肌耗氧量的关系

目的 研究高血压对心脏作功和心肌耗氧量的影响。方法 彩超观察31例单纯性收缩期高血压(ISH)及26例舒张期高血压(DH)患者口服国产硝苯吡啶前后心脏作功等相关血液动力学的变化情况。结果 用药前两组的心脏作功均显著增高(P<0.001),服药后两组的心脏作功均随着血压的下降成比例地显著下降(P<0.001)。结论 高血压病患者心脏处于高作功状态,心肌的高耗氧量随血压及心脏作功的增高而成比例的增高。

To Study the Effect of Hypertension in Cardiac Work and Oxygen Consumption of the Myocardium

Objective To study the effect of hypertension in cardiac work and oxygen consump-tion of the myocardium. Methods 27 were systolic hypertension, 23 were diastolic hyperten-sion. Before and after dose patients with nifedipine, ultrasonic cardiogram observing thechange of the cardiac work, cardiac output, total peripheral resistance. Results before dosewith nifedipine, two groups cardiac work were heighten. After dose with drug, two groupscardiac work descent in proportion to blood pressure descent. Conclusion The heighten of theThe blood pressure will lead to raise of cardiac work and oxygen consumption, and the raise ofcardiac work and oxygen consumption is in direct proportion to level of the heighten of theblood pressure.