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目的:探讨P波离散度(Pd)与高血压并发阵发性心房颤动(PAf)的临床关系。方法:将88例高血压病患者分为两组,高血压病并PAf病史者为A组(共计44例), 无PAf病史的高血压病患者为B组(共计44例)。在平静仰卧时进行12导联同步心电图检查,测量12导联P波时限,其中最大P波时限(Pmax)与最小P波时限(Pmin)之差值即为Pd。结果:A组Pmax较B组增高。有显著性差异(P<0. 05);A组Pd较B组增高,有极显著差异(P<0. 01);A组心脏射血分数(EF)较B组降低,两组比较有显著性差异(P<0. 05)。结论:Pd可作为PAf的体表心电图预测指标,可作为预测PAf以及筛选和评价抗房性心律失常药物疗效和预防作用的指标。
Objective: To investigate the clinical relationship between P wave dispersion (Pd) and hypertension complicated with paroxysmal atrial fibrillation (PAf). Methods: 88 patients with essential hypertension were divided into two groups. The history of hypertension and PAf was group A (total 44 cases), and the group without hypertension with history of PAf was group B (total 44 cases). 12-lead synchronous electrocardiogram was performed during calm supine and the P-lead time of 12-lead was measured. The difference between the maximum P-wave limit and the minimum P-wave limit was Pd. Results: Pmax in group A was higher than that in group B (P <0.05). Pd in group A was higher than that in group B (P <0.01), and the ejection fraction (EF) in group A was lower than that in group B. There was a significant difference between the two groups Significant difference (P <0.05). Conclusion: Pd can be used as a predictive value of body surface electrocardiogram of PAf, which can be used as a predictor of PAf and screening and evaluation of the efficacy and prevention of antiarrhythmic drugs.