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1 临床资料房室传导阻滞时发生舒张期房室瓣反流是舒张期心室过度充盈及其舒张末压高于房压所致。然而,心室率正常的Ⅰ度房室传导阻滞(A-VB)或右室起搏者也
1 clinical data of atrioventricular block occurs when the atrioventricular valve regurgitation is excessive diastolic ventricular filling and its end-diastolic pressure higher than the result of atrial pressure. However, patients with normal ventricular rate Ⅰ degree atrioventricular block (A-VB) or right ventricular pacing also