Armstrong W F, Bossone E
Division of Cardiology, University of Michigan Hospital, Ann Arbor 48109-0273, USA.
Prog Cardiovasc Dis. 1997 May-Jun;39(6):555-66. doi: 10.1016/s0033-0620(97)80014-x.
Stress echocardiography is a commonly employed technique for the diagnosis of coronary artery disease and for determining patient prognosis. More recently, it has been shown to be a valuable tool for determining myocardial viability in both acute and chronic ischemic coronary syndromes. The response of myocardial segments that are dysfunctional at rest to low dose stimulation with dobutamine predicts eventual recovery of function with a level of accuracy equivalent to that of the competing radionuclide techniques. Identification of patients with significant areas of viable myocardium plays a valuable role in decision making for high risk intervention and multivessel bypass surgery. Additionally, identification of viable myocardial carries significant prognostic implications for future cardiac events.
负荷超声心动图是诊断冠状动脉疾病和确定患者预后的常用技术。最近，它已被证明是确定急性和慢性缺血性冠状动脉综合征中心肌存活性的重要工具。静息时功能异常的心肌节段对多巴酚丁胺低剂量刺激的反应可预测功能最终恢复情况，其准确度与竞争性放射性核素技术相当。识别有大面积存活心肌的患者在高危干预和多支血管搭桥手术的决策中具有重要作用。此外，识别存活心肌对未来心脏事件具有重要的预后意义。
