1972 年 36 巻 5 号 p. 423-432
Studying electrocardiogram (ECG) in 84 patients with chronic pulmonary disease, especially chronic pulmonary emphysema, the relation of ECG findings to the clinical course and prognosis of the disease was observed. ECG criteria of right ventricular hypertrophy (RVH) by Roman et al. and right axis deviation of P wave of +80° or more in the frontal plane were found at a high incidence in the cases of poor prognosis. Slurred S in the. right precordial lead was found to be an useful index for early diagnosis of RVH.
