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对26例小儿病态窦房结综合征(简称病窦)进行食道心房调搏术,发现其SNRT、CSNRT、SACT等项指标均明显大于对照组(P<0.01或0.05)。心电图显示窦性心动过缓占30.8％,频发窦性静止占23.1％,二度Ⅰ型和Ⅱ型窦房阻滞占26.9％,显著窦性心律不齐占19.2％。作者认为小儿SNRT≥1200ms、CSNRT≥350ms、SACT≥140ms,提示窦房结功能不良,结合心电图改变之一可诊断病窦。14例患儿阿托品试验阳性率达71.4％,说明小儿病窦大部分为窦房结器质性病变所致。
26 cases of sick children with sick sinus syndrome (referred to as sick sinus) esophageal atrial pacing, found SNRT, CSNRT, SACT and other indicators were significantly greater than the control group (P <0.01 or 0.05). Electrocardiogram showed sinus bradycardia accounted for 30.8%, frequent sinus arrest was 23.1%, second degree type Ⅰ and Ⅱ sinoatrial block accounted for 26.9%, significant sinus arrhythmia accounted for 19.2%. The authors believe that pediatric SNRT ≥ 1200ms, CSNRT ≥ 350ms, SACT ≥ 140ms, suggesting that sinus node dysfunction, combined with changes in ECG can be diagnosed sick sinus. Fourteen cases of children with atropine test positive rate of 71.4%, indicating that most of sinus sick sinus disease caused by organic disease.