窦性心率震荡临床研究.docVIP

窦性心率震荡临床研究 　　[摘要] 目的：探讨急性心肌梗死患者和扩张型心肌病患者的室性心律失常之后的窦性心率变化与预后关系。方法：检测40例急性心肌梗死患者组、25例扩张型心肌病患者组及50例冠心病非急性心肌梗死伴有室性早搏组（对照组）的室性心律失常之后的窦性心率变化[震荡初始（TO）、震荡斜率（TS）]、左室射血分数（LVEF）3项指标，并观察3项指标与1年内死亡发生率的关系。结果：①急性心肌梗死组震荡初始（TO）为（-0.38±2.34）%，震荡斜率（TS）为（2.30±1.10） ms/RR；扩张型心肌病组震荡初始为（-0.38±2.26）%，震荡斜率为（4.67±2.86） ms/RR；对照组震荡初始为（-2.26±3.16）%，震荡斜率为（8.60±6.84） ms/RR，3组比较差异有统计学意义，P0.05；震荡斜率、LVEF比较差异有统计学意义，P0.05。④3组各指标与1年内的死亡发生率组间比较差异无统计学意义，P0.05。结论：室性心律失常之后窦性心率震荡不一定能预测死亡率，死亡率的高低在于该种疾病病变的严重程度。 　　[关键词] 窦性心率震荡；震荡初始；震荡斜率；预后；研究 　　[中图分类号] R541.7+3 [文献标识码]A[文章编号]1674-4721（2010）11（a）-037-04 　　 　　Clinical study of sinus heart rate turbulence 　　HUANG Zuogui, DU Guowei, YIN Bo 　　(Department of Cardiology，The Chongqing Three Gorges Central Hospital, Chongqing 404000, China) 　　[Abstract] Objective: To investigate the acute myocardial infarction and dilated cardiomyopathy in patients with ventricular arrhythmias in patients with sinus rhythm after the change and prognosis. Methods: 40 patients with acute myocardial infarction group, 25 patients with dilated cardiomyopathy group and 50 cases of coronary heart disease associated with premature ventricular contractions of non-acute myocardial infarction(control group) of ventricular arrhythmia sinus rhythm after the change[turbulence onset(TO), turbulence slope(TS)], left ventricular ejection fraction(LVEF) 3 indicators, and observe the three indices and the incidence of death within 1 year relationship. Results: ①The initial shock in acute myocardial infarction(TO) was (-0.38±2.34)%, turbulence slope(TS) was (2.30±1.10) ms/RR; dilated cardiomyopathy initial shock was (-0.38±2.26)%, turbulence slope was (4.67±2.86) ms/RR; The initial shock control group was (-2.26±3.16)%, turbulence slope was (8.60±6.84) ms/RR,3 statistically significant difference between groups, P0.05; turbulence slope, LVEF was statistically significant difference, P0.05. ④3 group index and the incidence of death within 1 year between the two groups was no significant differenc