病态窦房结综合征（SSS）是临床心脏病学和心源性晕厥的重要组成部分之一，亦是人工心脏起搏的主要适应症之一．在我院，因SSS而植入起搏器者占起搏病人的47q0（！）．关于SSS的起搏治疗国外多采用生理性双腔起搏（DDD）或心房按需起搏（AAI）．在我国则几乎均采用心室按需起搏 Sick sinus syndrome (SSS) is one of the important components of clinical cardiology and cardiogenic syncope. It is also one of the main indications of artificial cardiac pacing. In our hospital, implanted pacemakers for SSS accounted for 47q0 of pacing patients (!). On the SSS pacing therapy more use of physiological dual-chamber pacing (DDD) or atrial pacing (AAI). In our country almost all use ventricular pacing on demand