The changes of electrocardiographic P wave in patients with paroxysmal atrial fibrillation
WEI Kai-fu
QIN Shao-ming
LIN Ying-zhong
Abstract： Objective To investigate the changes of electrocardiographic P wave in patients with paroxysmal atrial fibrillation.Methods Two hundred patients were divided into 2 groups:paroxysmal atrial fibrillation group ( n=100) as group PAF:patients with paroxysmal atrial fibrillation;control group (n=100) as group no-PAF: patients with no atrial fibrillation.P wave duration, P terminal force in lead V1 (Ptfv1), left atrial diameter(LAD), left ven-tricular diameter(LVD) and left ventricular ejection fraction(LVEF) were detected by electrocardiography and echo-cardiography .Results P wave duration was significantly longer in group PAF [ ( 120 ±10 ) ms, P<0.01 ] than in group no-PAF ( 99 ±11 ) ms.Ptfv1 was greater in group PAF ( 0.051 ±0.023 ) mm · s than in group no-PAF [(0.026 ±0.010)mm· s, P<0.01].There were no diffenrences in the size of left atrium and ventricular between two groups(P>0.05), the LVEF was also in the same level between two groups (P>0.05).Conclusion Paroxys-mal atrial fibrillation may induce the increased P wave duration and increase Ptfv 1, which is independent of the size of left atrium.
Keywords：Atrial fibrillationElectrocardiographic P wave
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 749-751 )