Cibor E, Dubiel J P
Folia Med Cracov. 1989;30(3-4):83-91.
Left ventricular systolic time intervals were investigated before and after administration i.v. 10 micrograms of isoproterenol in a group of 12 patients with hypertrophic cardiomyopathy. Control group consisted of 10 healthy subjects. Isoproterenol shortened on hypertrophic cardiomyopathy pre-ejection periods: pre-ejection period index, isovolumetric contraction time, and Q-1. sound interval. Q-2. sound interval index did not shorten after isoproterenol what was observed in healthy subjects. Lef ventricular ejection time index lengthened little in patients and shortened in controls. These changes of left ventricular systolic time intervals suggest that isoproterenol makes difficult blood ejection from the ventricle.
在一组12例肥厚型心肌病患者中，静脉注射10微克异丙肾上腺素前后对左心室收缩时间间期进行了研究。对照组由10名健康受试者组成。异丙肾上腺素使肥厚型心肌病患者的射血前期缩短：射血前期指数、等容收缩时间和Q-1音间期。异丙肾上腺素注射后，Q-2音间期指数并未像在健康受试者中那样缩短。患者的左心室射血时间指数略有延长，而对照组则缩短。左心室收缩时间间期的这些变化表明，异丙肾上腺素使心室射血变得困难。
