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目的 :探讨P波离散度 (Pdisp)及P波最长时间 (Pmax)与阵发性心房纤颤的关系。方法 :观察 3 2例有阵发性心房纤颤病人的Pdisp及Pmax,并与 3 2例无心房纤颤病人相比较。对有心房纤颤者给予乙胺碘呋酮口服 ,观察治疗前后Pdisp及Pmax变化。结果 :有心房纤颤病人的Pdisp及Pmax均明显高于对照组 ,差异有极显著性 (P <0 0 0 1) ,有心房纤颤者用乙胺碘呋酮后Pdisp及Pmax均明显减少 (P <0 0 0 1)。结论 :Pdisp及Pmax可预测心房纤颤的发生 ,且是观察抗房性心律失常药物疗效的指标。
Objective: To investigate the relationship between P wave dispersion (Pdisp) and P wave maximal time (Pmax) and paroxysmal atrial fibrillation. Methods: The Pdisp and Pmax of 32 patients with paroxysmal atrial fibrillation were observed and compared with 32 patients without atrial fibrillation. For patients with atrial fibrillation, amiodarone was given orally, and the changes of Pdisp and Pmax before and after treatment were observed. Results: The values of Pdisp and Pmax in patients with atrial fibrillation were significantly higher than those in control group (P <0.01), and both Pdisp and Pmax in patients with atrial fibrillation were significantly decreased (P <0 0 0 1). Conclusion: Pdisp and Pmax can predict the occurrence of atrial fibrillation, and is an indicator to observe the curative effect of antiarrhythmic drugs.