严重充血性心力衰竭患者经合理的洋地黄和利尿剂治疗,在静息或轻度活动时仍然感到气急和疲劳者,加用血管扩张剂提供了一种新的和有前途的治疗措施。静息时,这类患者一般均示有心排出量明显减少,左室充盈压升高,伴有体循环血管阻力显著增加 Patients with severe congestive heart failure, treated with sensible digitalis and diuretics, who feel breathless and fatigued at rest or mild activity, and vasodilators provide a new and promising treatment. At rest, these patients generally showed a significant reduction in cardiac output, left ventricular filling pressure increased, with systemic vascular resistance increased significantly