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选择50例窦性心律时心电图正常的阵发性室上性心动过速患者施行了心房调搏和三磷酸腺苷(ATP)分级递增快速静注试验(ATP_(iv)),以评价ATP对隐性预激综合征(WPW)的诊断价值.结果为:心房调搏和ATP_(iv)分别揭示出心室预激波10和11例,后者中7例在显示心室预激波前或中出现了非预激搏动的房室结传导延搁或阻滞;ATP_(iv)未发生严重并发症.提示:①ATP_(iv)是诊断隐性WPW的一种敏感的较安全的方法,比心房调搏简便易行;②ATP_(iv)时心室预激波的揭示主要与ATP对房室结前传的负性变导性作用有关.
Atrial pacing and adenosine triphosphate (ATP) graded fast-paced instillation (ATP_ (iv)) were performed in 50 patients with normal electrocardiogram with paroxysmal supraventricular tachycardia to evaluate the effects of ATP on implicit (WPW) .Results: Atrial pacing and ATP_ (iv) revealed ventricular pre-shock 10 and 11, respectively, and 7 of the latter showed pre-ventricular pre-shock wave in or before Pre-excited pulsatile atrioventricular node conduction delayed or blocked; ATP_ (iv) no serious complications. Tip: ① ATP_ (iv) is a sensitive and safe method of diagnosis of recessive WPW easier than atrial pacing Line; ②ATP_ (iv) when the ventricular pre-shock revealed the main ATP and atrioventricular nodal negative transductivity role.