摘要
目的比较射频消融前后 B型预激综合征心功能变化。方法根据 QRS波时间将 46例 B型预激综合征患者分为两组 :A组 2 7例 ,QRS波时间 0 .11～ 0 .13 s;B组 19例 ,QRS波时间 0 .14～ 0 .16 s。射频消融前及术后 3～ 5天测左室的心功能。结果术后 A组的每搏量 (SV)、射血分数 (EF)、峰射血率 (PER)、峰充盈率 (PFR)及 B组的 SV、EF均略高于术前 (P>0 .0 5 ) ,尤其 B组的 PER、PFR明显高于术前 (P<0 .0 5 )。结论射频消融后 ,随着预激成分的消失 ,心功能可得到一定程度的改善 ,且术前预激成分越多 ,QRS波越宽 。
Objective To compare changes of the cardiac function before and after radiofrequency catheter ablation (RFCA) in type B preexcitation syndrome.Methods 46 cases with type B preexcitation syndrome were divided into two groups:group A (n= 27),QRS time is 0.11～0.13 s;group B (n=19),QRS time is 0.14～0.16 s.The cardiac function of left ventricle was measured before and 3～5 days after RFCA.Results The stroke volume(SV),ejection fraction(EF),peak ejection rate(PER) and the peak filling rate(PFR) in group A and the SV and EF in group B after RFCA were higher than that before RFCA (P>0.05).The PER and PFR in group B after RFCA were significantly higher than that before RFCA (P<0.05).Conclusion As preexcitation composition disappeared after RFCA,the cardiac function could be improved,and the more the preexcitation composition and the wider the QRS before RFCA was,the more obvious the improvement after RFCA was.
出处
《中国综合临床》
北大核心
2001年第3期175-176,共2页
Clinical Medicine of China
关键词
B型预激综合征
射频消融术
心功能
Preexcitation syndrome
Radiofrequency catheter ablation
Cardiac function
