阵发性心房颤动与P波离散度的关系

Relationship between paroxysmal atrial fibrillation and P-wave dispersion

目的探讨P波离散度(Pd)与阵发性房颤的关系。方法观测62例高血压合并阵发性房颤患者(A组)和63例特发性房颤患者(B组)的pd和p波最大时限(Pmax)。结果两组阵发性房颤患者的Pd和Pmax与对照组比较有显著差异(P<0.05)。AB两组患者之间的Pd和Pmax无显著差异(P>0.05);Pd≥40ms、Pmax≥110ms及二者结合时,预测阵发性房颤患者的敏感性在AB两组结果分别是83.9%、85.5%、77.4%和81.0%、87.3%、79.4%,特异性分别是79.0%、71.0%、90.3%,阳性预测准确度分别是80.0%、74.6%、88.9%和79.7%、75.3%、89.3%。结论Pd是预测阵发性房颤的一个无创而可靠的新指标。

Obiective To explore the relationship between paroxysmal atrial fibrillation(PAF) and P wave dispersion(pd) Methods The P wave maximal interval(Pmax)and P wave dispersion were measured and compared in 62 essential hypertensive patients with history of PAF(group A),63 didopathic patients,and 62 healthy controls Rusults The pd and Pmax had significant difference in two groups of patients with paroxysmal atrial fibrillation comparing with that of contol;The pd and Pmax had no significant difference in patients of A group comparing with B group,Taking pd≥40ms,pmax≥110ms and combination of two indexes as diagnosis criteion in Aand B groups,sensitivity of them were 83 9%,85 5%,77 4%and 81 0%,87 3%,79 4%,spccificity were 79 0%,71 4%and 90 3%,positive predictive value were 80 1%,74 6%,88 9%and 79 7%,75 3%,89 3%respectively Conclusions Pd is new,noninvasive,stable predictable index in patients with paroxysmal atrial fibrillation