P wave duration的意思|示意

Objective To analyse the effects of rapid atrial pacing on P wave duration and dispersion.

目的分析快速心房刺激对P波时限及离散度的影响。

The surface body electrocardiogram(ECG) manifestations of biatrial pacing are that P wave duration shortens, the polarity of P wave changes to negative, PR interval gets shorter correspondingly.

双房同步起搏体表心电图表现为P波时限短、负向或正负双向，PR间期相应缩短。

Conclusion The extent of atrial fibro sis was increased in abdominal aorta banded rats. Although longer P wave duration and IACT are present, there is no change in atrial effective refractory period.

结论腹主动脉结扎大鼠心房纤维化程度增加，P波时限增宽，IACT延长，心房有效不应期没有改变。

The relationship between P-wave maximum duration and P-wave dispersion with echocardiographic parameters were analyzed.

分析P波最大时限和P波离散度与超声参数之间的相关关系。

Methods: We measured the maximum P-wave duration and P-dispersion from the 12-lead surface electrocardiogram of 40 patients with IPAF and 40 age-matched healthy control subjects.

方法：对确诊IPAF病例和年龄匹配的健康人各40例，测量体表心电图12导联最大P波时限及P波离散度。