摘要
目的 :观察急性心肌梗死患者经皮冠状动脉成型术 (PTCA)后Q -T离散度的变化 ,探讨PTCA对Q -T离散度的影响。方法 :测定 3 0例急性心肌梗死患者PTCA术前、术后即刻、术后 2h、术后 2 4h的Q-T离散度。结果 :急性心肌梗死患者PTCA术后即刻Q -T离散度较术前明显延长 (P <0 .0 5 ) ,术后 2h、术后 2 4h的Q -T离散度较术前明显减小 (P <0 .0 5 ) ;心肌梗死部位 (前 /侧壁AMI与下 /后壁AMI相比 )对Q -T离散度无影响 (P >0 .0 5 )。结论 :经皮腔内冠状动脉成型术可以使急性心肌梗死患者Q -T离散度显著降低 ,减少心律失常发生 ,对降低急性心肌死患者死亡率有临床意义。
Objective: This study was conduced to observe the changes of Q-T interval dispersion after percutaneous transluminal coronary angioplasty(PTCA) in acute myocardial infarction (AMI), to study the effects of PTCA on Q-T dispersion.Methods: Q-T dispersion in thirty pations with AMI were mearsured at the admission and in different time after admission.Results: Q-T dispersion were significantly prolonged after instent reperfusion (P<0.05),but the level were shortened significantly in the subsequent two hours and 24 hours after angioplasty(P<0.05). The location of myocardial infarction had no effects on QTcd and QTd(P<0.05).Conclusion: PTCA can significantly reduced Q-T dispersion and decreased the risk of arrhythmia. mortality in AMI pations.
出处
《航空航天医药》
2003年第3期145-146,共2页
Aerospace Medicine
