Michaelides A P, Dilaveris P E, Psomadaki Z D, Aggelakas S, Stefanadis C, Cokkinos D, Gialafos J, Toutouzas P K
Department of Cardiology, University of Athens Medical School, Hippokration Hospital, Greece.
Am Heart J. 1998 Mar;135(3):449-56. doi: 10.1016/s0002-8703(98)70321-7.
Exercise-induced ST-segment changes 3 months after angioplasty may sometimes show a false-positive result.
We therefore analyzed the ST changes observed during the exercise tests performed before and 3 months after angioplasty in 118 patients with single-vessel coronary artery disease.
Ninety-two (78%) of the 118 patients had ST changes in the same lead before and after angioplasty, whereas the remaining 26 (22%) patients had ST changes in other leads in the postangioplasty test when compared with the preangioplasty exercise test. Restenosis was found in 44 (48%) of the 92 patients with ST changes in the some lead but in only four (15%) of the 26 patients with ST changes in other leads.
Exercise-induced ST-segment changes are not reliable markers of restenosis 3 months after angioplasty. ST-segment changes observed in other leads after angioplasty compared with the preangioplasty exercise test may show a false-positive result.
血管成形术后3个月运动诱发的ST段改变有时可能出现假阳性结果。
因此，我们分析了118例单支冠状动脉疾病患者血管成形术前和术后3个月进行运动试验时观察到的ST段改变。
118例患者中，92例（78%）血管成形术前和术后同一导联出现ST段改变，而其余26例（22%）患者血管成形术后运动试验与术前相比，ST段改变出现在其他导联。92例同一导联出现ST段改变的患者中44例（48%）发现再狭窄，而26例ST段改变出现在其他导联的患者中仅4例（15%）发现再狭窄。
运动诱发的ST段改变不是血管成形术后3个月再狭窄的可靠标志物。与血管成形术前运动试验相比，血管成形术后其他导联观察到的ST段改变可能出现假阳性结果。
