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窦房结(SN)是正常心脏的起搏点。病窦综合症(Sick Sinus Syndrom,简称SSS或病窦)是SN 冲动形成和窦房传导失常并常常伴有房室之间传导异常的疾病,日益为心血管疾病研究者所关注。已经开展的SN 功能检查方法有:1.阿托品激发试验;2.异丙肾上腺素激发试验;3.常规心电图及动态心电图观察;4.按压颈动脉窦及Valsava 操作试验;5.运动心电图试验;6.固有心率测定;7.心房调搏(直接或经食道)测定窦房传导时间(SACT)和窦房结恢复时间(SNRT);8.直接记录窦房结电图(SNE)等。目
Sinus node (SN) is a normal cardiac pacemaker. Sick Sinus Syndrom (SICK Sinus Syndrom, SSS or sick sinus) is a disease of SN impulse formation and sinoatrial conduction disorders, often accompanied by anomalous conduction between atrioventricular anomalies, increasingly of concern to cardiovascular disease researchers. SN functional tests have been carried out are: 1. Atropine provocation test; 2. Isoproterenol provocation test; 3. Conventional ECG and Holter monitoring; 4. Carotid sinus and Valsava compression operation test; 5. Exercise ECG; 6. Determination of intrinsic heart rate; 7. Atrial pacing (direct or transesophageal) to determine SACT and SNRT; 8. Direct recording of sinus node electrocardiogram (SNE) and so on. Head