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左室肥大借左胸导程QRS增高、ST下移、T波低平倒置,室内偏动(V.A.T.)QT延长、电轴左倾,中隔波移行带左移等判定,对QRS及ST·T改变须鑑别与高血压无关之心肌障碍、洋地黄应用、交感神经紧张、电解质异常等假阳性因素。收缩期负荷过度时左胸导程R波增高、ST下移、T波倒置、_QR_S～_T角接近180°,舒张期负荷过度时左胸导程R增高、T波对称性增高、S_(v2、3)增深、_QR_S～_T接近0°。P波:原发性高血压56例中,电轴在+30°以下之左倾占21%,P_(v1)倒置部增大者占19%;u波:Kemp认为,与正置u波组对比,倒
Left ventricular hypertrophy by left chest lead QRS increased, ST down, T flat wave inversion, indoor bias (VAT) QT prolongation, the left axis of the electrical shift, the shift in the shift with left shift and other judgments, QRS and ST · T Changes to be identified and hypertensive non-related myocardial disorders, digitalis applications, sympathetic tone, electrolyte abnormalities and other false-positive factors. Left ventricular thoracic R wave increased, ST down, T wave inversion, _QR_S ~ _T angle close to 180 °, diastolic overloaded left chest lead R increased, T wave symmetry increased, S v2 , 3) deepen, _QR_S ~ _T close to 0 °. P wave: 56 cases of essential hypertension, the axis of left +30 in the following account for 21%, P_ (v1) increased 19%; u wave: Kemp that with the normal u wave group Contrast, pour