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心电图倒置U 波在冠状动脉疾病,高血压、主动脉瓣关闭不全、心肌疾病等左室负荷疾病常可见,而与右室负荷的关系却很少有人报告。作者通过对35例右室负荷疾病所见倒置U 波进行了研究(表)。全部病例在病情稳定情况下,进行了右心导管、心电图及心脏超声检查。心电图测定Rv_1+Sv_3及VATv_1;有室超声图测右室前壁厚度及右室舒张末径,右心导管测右室收缩压。
Inverted ECG U wave in coronary artery disease, hypertension, aortic regurgitation, myocardial disease and other left ventricular load disease often seen, but the relationship with the right ventricular load is rarely reported. The authors studied the inverted U wave seen in 35 patients with right ventricular load disease (Table). All patients under stable conditions, the right heart catheterization, ECG and cardiac ultrasound. Rv_1 + Sv_3 and VATv_1 were measured by electrocardiogram. The thickness of right ventricular anterior wall and diastolic diameter of right ventricle were measured with ultrasound in one room. Right ventricular systolic pressure was measured with right heart catheterization.