摘要
报道18例预激综合征的电生理检查的结果,其中旁道(AP)位置在左外侧8例,右外侧4例,左、右后膈旁各2例,右前膈旁1例,左外侧及右外侧1例。抗心律失常药物治疗显示主要是延长AP及室房(VA)传导的有效不应期(ERP),以阻断环行折返运动。房颤—室颤—心脏性猝死(SCD)为预激综合征的主要危险,房颤最短R-R间期(R-R TSI)≤250ms及AP逆向(retro)ERP≤240ms,可能预测SCD的发生。
EPS were performed in 18 patients with PS. Accessory pathways(APs) in the patients were located by endocardial mapping. The results showed left lateral pathway in eight patienrts, right lateral pathway in four, right anterior paraseptal pathway in on, eand left and right lateral pathway in one,left posterior paraseptal pathway in two and right posterior paraseptal pathway in two. Superventricular tachycardia(SVT) were producibly induced in 17 PS patients who included 4 PS patients with induced atrial fibrillation(Af) which degenerated to ventricular fibrillation(VF) in two subjects and 3 PS patients with proved dual AV nodal pathways. The results suggested that the shortest R-R interval of 250ms during Af and the effective refrectory period of 240ms in AP antegrade conduction were predictors for ensuring VF of 17 PS patients with SVT, 14 patients responsed to antiarrhyth(?)nia agents(procainamide in 4 patients; disopyramide in 4; flecainide in 3; antenol in 3) . Statistically, there were the extremely significant differences in effective refrectory periods of AP antegrade conduction, AP retrograde conduction and AV nodal retrograde conduction(VA conduction) between beforetreatment and after that.
出处
《贵阳医学院学报》
CAS
1992年第4期272-275,共4页
Journal of Guiyang Medical College
关键词
预激综合征
电生理学
preexcitation syndrome
atrial fibrillation
ventricular fib illaion
death
sudden
heart conduction system
anti-arrhythmia agents
electro physiology
accessory pathway
