摘要
目的 探讨迷走神经对QT间期离散度的影响。方法 观察 12 2例窦性心动过缓者阿托品试验前后QTd和QTcd的变化。结果 注射阿托品后 3分钟内单纯窦性心动过缓组QTd和QTcd虽然缩短 ( 19.72± 12 .82ms对 2 5 .99± 10 .33ms ;17.5 4± 10 .18ms对 2 2 .84± 11.34ms) ,但无统计学差异 (P >0 .0 5 ) ;急性胆囊炎组明显缩短 ( 16 .6 6± 10 .0 0ms对2 8.89± 13.33ms ,P <0 .0 5 ;15 .0 9± 11.18ms对 2 4.35± 8.92ms ,P <0 .0 1) ;胆囊炎并缺血性心脏病组则显著延长 ( 6 6 .9± 14 .18ms对 2 9.78± 12 .5 4ms ;6 4.2 1± 15 .0 6ms对 2 6 .10± 10 .10ms ,P <0 .0 5 )。结论 提示迷走神经兴奋对缺血性心肌具有保护作用。
Objective To investigate the effect of vagus nerve on QT dispersion in the patients with sinus bradycardia.Method The changes of QT dispersion (QTd) and QTc dispersion(QTcd) before and after atropin test in 122 cases were observed,which were divided into group Ⅰ(single sinus bradycardia group),group Ⅱ(acute cholecystis group) and group Ⅲ(cholecystis complicated with ischemic heart disease group).Results (1)There was no significant difference before the test among 3 groups( P >0.05).(2)3 minutes after the test,QTd and QTcd in group Ⅰ were shorter(19.72±12.8ms vs 25.99±10.33ms;17.54±10.18ms vs 22.84±11.34ms),but there was no significant difference(all P >0.05);(3)QTd and QTcd in group Ⅱ were significantly shorter(16.66±10.00ms vs 28.89±11.33ms, P <0.05;15.09±11.18ms vs 24.35±8.92ms, P <0.01);(4)QTd and QTcd after the test in group Ⅲ were longer than those of pretest(66.01±14.18ms vs 29.78±12.54ms;64.21±15.06ms vs 26.10±10.10ms, P <0.05).Conclusions The role of enhanced vagal activity on ischemic mycardium may provide it with protection.
出处
《现代诊断与治疗》
CAS
2001年第6期333-334,共2页
Modern Diagnosis and Treatment
