ST-Segment Depression in Leads I and aVL: Artifactual or Pathophysiological Findings ?
作者机构：Cardiovascular Analytics GroupLaboratory of Cardiovascular PhysiologyHong KongChina Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular DiseaseDepartment of CardiologyTianjin Institute of CardiologySecond Hospital of Tianjin Medical UniversityTianjinChina Department of MedicineKingston General HospitalQueen’s UniversityKingstonOntarioCanada
出 版 物：《Cardiovascular Innovations and Applications》 (心血管创新与应用（英文）)
年 卷 期：2021年第6卷第4期
页 面：109-111页
学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 1002[医学-临床医学] 08[工学]
主 题：ST segment artifact
摘 要：The 12-lead electrocardiogram(ECG)is a routinely performed test but is susceptible to misinterpretation even by experienced *** report a case of a 72-year-old lady with no prior cardiac history presented to our hospital with atypical chest *** initial electrocardiogram shows an initial ST depression followed by positive defl ections leads I and ***-physiological ST segment and T-wave changes are also observed in the precordial leads V2 to *** contrast,these abnormalities are notably absent in lead II.A repeat of the ECG taken 30 minutes later reveals the resolution of most abnormalities seen in the initial ECG on a background of high-frequency noise in the limb *** was referred to the cardiology department for further *** urgent echocardiogram revealed no regional wall motion abnormalities with preserved ejection fraction,and her coronary angiogram revealed no signifi cant coro-nary *** case illustrates the importance of understanding different factors that can cause ST segment abnor-malities,notably artifactual changes that can mimic ST segment myocardial infarction.
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