前壁心肌梗死时aVR导联ST段抬高的临床意义。通过铊-201运动闪烁显像进行评估。
Clinical significance of S-T segment elevation in lead aVR in anterior myocardial infarction. Assessment by thallium-201 exercise scintigraphy.
作者信息
Nakamori H, Iwasaka T, Shimada T, Kamihata H, Karakawa M, Matsuura T, Koito H, Sugiura T, Inada M, Suga Y
机构信息
Second Department of Internal Medicine, Kansai Medical University, Osaka, Japan.
出版信息
Cardiology. 1995;86(2):147-51. doi: 10.1159/000176861.
The significance of exercise-induced S-T elevation in aVR was studied in 57 patients with recent anterior infarction and single-vessel disease. S-T elevation in aVR was found at peak exercise in 24 patients. Although the initial defect area was similar in the groups with and without S-T elevation in aVR, the redistribution area was larger in the former group (p < 0.01). When three electrocardiographic criteria were used in the multivariate analysis, S-T elevation in aVR was the significant variable related to redistribution in the anterior wall. Thus, S-T elevation in aVR may indicate ischemia of the anterior wall.
对57例近期发生前壁心肌梗死且为单支血管病变的患者，研究了运动诱发的aVR导联ST段抬高的意义。24例患者在运动高峰时出现aVR导联ST段抬高。尽管aVR导联有无ST段抬高的两组初始梗死面积相似，但前一组的再分布面积更大（p<0.01）。在多变量分析中使用三项心电图标准时，aVR导联ST段抬高是与前壁再分布相关的显著变量。因此，aVR导联ST段抬高可能提示前壁缺血。
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