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目的探讨频发室性期前收缩的超声心电图特征与射频消融术治疗。方法选取2012年6月—2015年6月潢川县人民医院收治的频发室性期前收缩患者100例,采用超声心动图技术统计患者治疗前、治疗后1、3、6个月左房最大容积(LAVmax)、左房最小容积(LAVmin)、左房收缩前容积(LAVpre)、左房射血分数(LAEF)、心室被动射血分数(LAVFpassive)和心室主动射血分数(LAEFactive)。结果患者治疗后1个月LAVmax、LAVpre低于治疗前,LAEF,LAVFpassive,LAVFactive高于治疗前,患者治疗后3个月LAVmax、LAVpre低于治疗后1个月,LAEF,LAVFpassive,LAVFactive高于治疗后1个月,患者治疗后6个月LAVmax、LAVpre低于治疗后3个月,LAEF,LAVFpassive,LAVFactive高于治疗后3个月,差异有统计学意义(P<0.05)。结论射频消融术治疗频发室性期前收缩的临床疗效显著,采用超声心电图能有效地展示患者的心功能改善情况。
Objective To investigate the characteristics of echocardiography and radiofrequency catheter ablation before frequent ventricular contraction. Methods From June 2012 to June 2015, 100 patients with frequent ventricular premature contractions in Huangchuan County People’s Hospital were selected. Before echocardiography, the left atrium LAVmax, LAVmin, LAVpre, LEFF, LAVFpassive and LAEFactive. Results LAVmax and LAVF were lower than those before treatment, LAEF, LAVFpassive and LAVFactive at 1 month after treatment, LAVmax and LAVpre at 3 months after treatment were lower than those at 1 month after treatment, LAEF, LAVFpassive and LAVFactive were higher than those before treatment One month later, LAVmax and LAVpre of patients at 6 months after treatment were lower than those at 3 months after treatment, LAEF, LAVFpassive and LAVFactive were higher than those at 3 months after treatment (P <0.05). Conclusions Radiofrequency catheter ablation is effective in treating premature ventricular contractions. Echocardiography can effectively show the improvement of cardiac function in patients.