【摘要】 观察60例非持续性室性心动过速(NSVT)病人和50例正常人在临床表现、DCG、心功能以及心率变异方面的改变.结果表明:NSVT多见于冠心病(70%),且63.3%DCG表现为缺血型ST段压低≥1mm,其中23.7%压低>2mm,其心室异位节奏点73.3%来源于左心室.NSVT组与对照组SDNN分别为86.6±29.4ms及128.9±20.9ms,HRVI分别为8.45±2.3及12.7±2.0,均有非常显著性差异.NSVT组平均EF为0.54±0.18,其中41%EF<0.40.提示:NSVT多见于器质性心脏病人,它可能影响预后,尤其HRV降低可能是心性猝死的重要危险因素.更多还原

【Abstract】 This study observed changes in clinical manifesta-tion, DCG, cardiac function and HRV in patients withnonsustained ventricular tachycardia and 50 normalsubjects. Results revealed that NSVT mostly occurredin patients with coronary artery disease (70%) , 63.3% of DCG showed ischemic ST segment depression> 1mm, among them 23.0% of that > 2mm. 73.3 % of ventricular ectopic activity of NSVT was seen inleft ventricle. Average EF of NSVT and normal sub-jects group(SDNN) was 86. 6±29. 4 ms and 129.9±20. 9 ms; HRVT was 8. 45±2. 30 and 12. 68±2.00respectively. Average EF was 0. 54±0.18, 41% ofwhich was ≤0.40. Our data suggests that NSVT oc-curs more often in patients with organic heart diseaseand this may affects the prognosis of patients withNSVT. Reduced HRV is regarded as an importantrisky factor of SCD.更多还原