Srivastava P, Mittal S R, Srivastava N
Department of Medicine, JLN Medical College, Ajmer, Rajasthan.
J Assoc Physicians India. 1991 Mar;39(3):249-50.
R wave height, S wave depth and the R/S ratio on electrocardiograms obtained with unipolar oesophageal lead recorded at various levels were studied in 54 cases with emphysema without myocardial infarction and 46 cases with healeeed anteroseptal myocardial infarction. All patients had poor R wave progression in anterior precordial leads. The criterion of R wave height of greater than or equal to 7.5 mm at the ventricular level oesophageal electrocardiogram was most sensitive (85.7%), specific (80%) and accurate (82.4%) for the diagnosis of healed anteroseptal myocardial infarction.
对54例无心肌梗死的肺气肿患者和46例陈旧性前间隔心肌梗死患者，研究了在不同水平记录的单极食管导联心电图上的R波高度、S波深度及R/S比值。所有患者胸前导联R波进展均不佳。食管心电图心室水平R波高度大于或等于7.5mm这一标准，对陈旧性前间隔心肌梗死的诊断最敏感（85.7%）、特异（80%）且准确（82.4%）。
