浙江医学2017，Vol.39Issue(7)：529-534,538,7.DOI:10.12056/j.issn.1006-2785.2017.39.7.2016-1652
形态心电图标准在鉴别心室流出道室性心律失常中的价值
Value of electrocardiographic criteria in differential diagnosis of ventricular outflow tract ventricular arrhythmias
李卓远 1张文新 1林加锋2
作者信息
- 1. 325027 温州医科大学附属第二医院心电图室
- 2. 325027 温州医科大学附属第二医院心内科
- 折叠
摘要
Abstract
Objective To evaluate the value of electrocardiographic(ECG) criteria in differential diagnosis of left ventricular outflow tract ventricular arrhythmias (LVOT) VAs.Methods The surface ECG pattern in 155 cases of left ventricular outflow ventricular premature contraction/ventricular tachycardia patients who underwent successful catheter ablation and compared with 155 cases which origin from right ventricular outflow tract (RVOT) VAs patients.Five criteria of the indexes of the R-wave amplitude and duration,the precordial transitional zone index,the V2 transition ratio and precardial transition for diagnosing LOVT and calculated their sensitivity,specificity cities,positive predictive values and negative predictive values.Results (1)There was significant different in the indexes of R-wave duration and R/S-wave amplitude in lead V1 and V2、the V2 transition ratio and precordial transition、the precordial transitional zone index between LVOT and RVOT.(2) The subgroup of the LVOT:①In accordance with the amplitude of R wave in lead V1 was larger than 0.3 and the time limit ratio was larger than 0.5:The LCS group、ILCS and RCS group were 89.13％(82/92)、90.91％(30/33)、90.00％(27/30)conform this standard.② In accordance with the amplitude of R wave in lead V2 was larger than 0.3 and the time limit ratio was larger than 0.5:The LCS group、lLCS and RCS group were 89.13％(82/92)、93.94％(31/33)、90.00％(27/30)conform this standard,③The TZ index of the precordial lead ＜0:The LCS group、ILCS and RCS group were 88.04％(81/92)、93.94％(31/33)、90.00％(27/30) conform this standard,④The V2 transition ratio:The LCS group、lLCS and RCS group were 89.13％(82/92)93.94％(31/33)、83.33％(25/30) ⑤PVC's the precordial lead:The ILCS has 93.39％(31/33) small than V1,The other group's precordial lead were bigger than V1 ⑥the morphology of V1 a negative rs or rS morphology was recorded in most of LCS and ILCS group's pation78.26％(72/92)and 81.81％ (27/33).a positive R、r、M morphology was recorded in most of group RCS patients76.67％(23/30) Conclusion The indexes of the r-wave amplitude＜0.3 and duration＜0.5 and the precordial transitional zone index≥0 are more effective than the other criterias in differential diagnosis of LVOT Vas关键词
室性期前收缩/射频消融/心电图Key words
Ventricular premature contraction/Catheter ablation/Electrocardiogram引用本文复制引用
李卓远,张文新,林加锋..形态心电图标准在鉴别心室流出道室性心律失常中的价值[J].浙江医学,2017,39(7):529-534,538,7.
