Clinical relevance of exercise-induced S-T segment elevation.

Clinical relevance of exercise-induced S-T segment elevation.
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运动引起的 S-T 段抬高的临床相关性。

DOI:
10.1016/0002-9149(80)90347-1
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发表时间:
1980
期刊:
The American journal of cardiology
影响因子:
--
通讯作者:
Wallace,AG
Wallace,AG
中科院分区:
--
文献类型:
--
作者:
Stiles,GL;Rosati,RA;Wallace,AG

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对运动性S-T升高或S-T抑郁的患者进行人口学、平板运动试验和血管造影检查。当541例S-T抑郁患者与109例S-T抬高患者进行比较时,前者有较大比例的胸痛(71%对58%)和较大比例(86%对61%)室壁运动正常(54%对30%)。S-T升高的患者中有更大比例的患者既往有心肌梗死(61%对33%)。在无心肌梗死病史的患者中(S-T压低360例,S-T抬高42例),这些差异消失。在42例S-T抬高患者中,83%的患者心室正常,的收缩功能正常,无一例室壁瘤,冠状动脉病变和心功能不全的严重程度与S-T抑郁患者的严重程度无差异。因此,在无心肌梗死的患者中,运动时S-T升高或S-T降低的原因似乎与静息状态下冠状动脉病变的严重程度、心功能或室壁异常无关。在既往有心肌梗死史的患者中,运动诱发的S-T升高似乎是左心功能受抑的一个标志。
Patients with exercise-induced S-T elevation or S-T depression were evaluated with demographic, treadmill and angiographic data. When 541 patients with S-T depression ware compared with 109 patients with S-T elevation, a greater proportion of the former had chest pain (71 versus 58 percent) and a normal-sized ventricle (86 versus 61 percent) with normal wall motion (54 versus 30 percent). A greater proportion of patients with S-T elevation had had a previous myocardial infarction (61 versus 33 percent). Among patients without prior Infarction (360 with S-T depression and 42 with S-T elevation), these differences disappeared. In this group of 42 patients with S-T elevation, 83 percent had a normal-sized ventricle, 64 percent had normal contractlity and none had a ventricular aneurysm; the severlty of coronary disease and ventricular dysfunction did not differ from the severity in patients with S-T depression. Thus, in patients without prier myocardial infarction, the cause of the development of S-T elevation or S-T depression during exercise does not appear to be related to the the severlty of the coronary lesions, ventricular function or wall abnormalities at rest. In patients with prior myocardial infarction, exercise-induced S-T elevation appears to be a marker of depressed left ventricular function.
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