PTCA术对心率变异性的影响

目的　探讨PTCA术对心率变异性的影响。 方法　 本文对 2 0例行经皮冠状动脉腔内成形术(PTCA)的患者进行 2 4小时心率变异性 (HRV)分析。所有患者均于 (PTCA)术前进行 2 4hHolter记录 ,并于术后 1周及六个月重复检查。HRV检查包括时域分析 (SDNN ,SDANN ,SDNNindex,rMSSD和PNN 5 0 )和频域分析 (TF ,LF和HF)。 结果　PTCA术后一周HRV较术前降低 ,其中时域指标 :SDNN ,SDANN ,SDNNindex ,rMSSD和PNN 5 0明显降低 (P <0 .0 5 ) ;频域指标TF ,LF和HF也明显降低 (P <0 .0 1) ,术后 6个月复查 ,HRV恢复至术前水平。 结论　PTCA术后 1周HRV明显下降 ,术后 6个月恢复至术前水平

Effect of PTCA on Heart Rate Variability(HRV)

Objective To explore the effect of PTCA (percutaneous transluminal coronary angioplasty) on heart rate variablity(HRV).Methods Analysed 24 hours HRV of 20 patients with PTCA before procedure,one week and 6 months after procedure.The parameters of HRV included time domain analysis(SDNN,SDANN,SDNN index,rMSSD and PNN 50) and frequent domain analysis(TF,LF and HF).Results The study showed that HRV of PTCA patient significantly dropped at one week when compared to pre-procedure,especially SDNN,SDANN,SDNN index,rMSSD and PNN 50 come down much more.And parameters of frequency domain significantly come down too.At six months,these parameters of HRV recovered to pre-operation level.Conclusion HRV dropped down significantly at one week after PTCA and recovered to pre-procedure level after six months.