摘要
目的探讨急性心肌梗死心室颤动(室颤)患者发生窦性心率震荡现象的意义。方法选择急性ST段抬高性心肌梗死行经皮冠状动脉介入术后发生室颤的9例为室颤组,以未发生室颤的49例为无室颤组,比较两组窦性心率震荡现象异同。结果室颤组与无室颤组舒张末期左心室内径及左室射血分数分别为(48.0±5.7)mm、(0.59±0.11)和(45.8±5.0)mm、(0.58±0.10),两组比较差异无统计学意义(P>0.05);室颤组心率震荡初始值与震荡斜率值分别为(0.81±2.03)、(2.18±1.06)ms/RR间期,无室颤组分别为(-0.65±2.64)、(4.05±1.22)ms/RR间期,两组比较差异均有统计学意义(P<0.05)。结论急性ST段抬高性心肌梗死患者发生室颤时窦性心率震荡现象减弱更明显,部分患者在心肌梗死早期即已出现植物神经功能紊乱。
Objective To investigate the value of sinus heart rate turbulence in patients with acute myocardial infarction（AMI）.Methods 9 patients with acute ST segment elevated myocardial infarction regarded as ventricular fibrillation group underwent percutaneous transcoronary intervention,and 49 without ventricular fibrillation were regarded as non-ventricular fibrillation group.The difference of heart rate turbulence in the two groups was compared.Results During diastasis,the left ventricular internal diameter and ejection fraction in ventricular fibrillation group and non-ventricular fibrillation group were（48.0±5.7）mm,（0.59±0.11） and（45.8±5.0）mm,and（0.58±0.10） respectively,and there was significant difference between the two groups（P0.05）.The values of turbulence onset and turbulence slope in the ventricular group were（0.81±2.03） and（2.18±1.06）ms/RR stage,but were（-0.65±2.64） and（4.05±1.22）ms/RR stage in non-ventricular fibrillation,and there was significant difference（P0.05）.Conclusion Sinus heart rate turbulence is dramatically blunted in the acute ST segment elevated myocardial infarction patients,and autonomic nervous system dysfunction may partially occur in early AMI.
出处
《临床误诊误治》
2011年第4期19-20,共2页
Clinical Misdiagnosis & Mistherapy
关键词
心肌梗死
心室颤动
窦性心率震荡
Myocardial infarction
Ventricular fibrillation
Heart rate turbulence
