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一、心血管畸形的血液动力学改变反映在心电图上的基本变化:应着重观察:①心电轴。②心室负荷过重类型:右室舒张期负荷过重,右胸导联V_1、V_3R呈rsR′,常伴有右胸导联室壁激动时间延长;右室收缩期负荷过重,右胸导联R波电压增高,可呈rsR′、Rs、R、rR′,甚至qR型,T波低平、双向或直立,甚至深倒,ST段下降;左室舒张期负荷过
First, the cardiovascular changes in hemodynamic changes reflected in the basic changes on the ECG: Should focus on observation: ① ECG axis. ② type of ventricular overload: right ventricular diastolic overload, right chest lead V_1, V_3R was rsR ’, often associated with right chest lead wall prolongation of time; right ventricular systolic overload, right chest guide R R wave voltage increased, can be rsR ’, Rs, R, rR’, and even qR type, T wave low level, bidirectional or erect, even deep down, ST segment decreased; left ventricular diastolic load