房室顺序起搏(Atrial-ventricalar Sequential Pacing)以往主要用于治疗房室传导阻滞等过缓型心律失常。这种心脏人工起搏方式显然比目前国内外较为广泛采用的心室起搏和心房起搏均更为优越。这是因为房室顺序起搏能保留心房收缩与心室收缩的顺序同步活动,有助于心室的进一步充盈,从而可使每搏心输出量增加10～30％,有效地改善心脏的血液动 Atrial-ventricalar Sequential Pacing has traditionally been used to treat bradyarrhythmias such as AV block. This artificial cardiac pacemaker is obviously superior to the more widely used ventricular pacing and atrial pacing at home and abroad. This is because atrioventricular pacing can preserve the atrial systolic and ventricular systolic sequence of synchronized activity, contribute to the further filling of the ventricle, which can make cardiac stroke volume output increased by 10 to 30%, effectively improve the blood flow of the heart