相对不应期

心房、房室结及心室相对不应期、功能不应期及有效不应期（ERP）延长。

The relative refractory period , functional refractory period and effective refractory period ( ERP ) of right atrial , atrioventricular node and right ventricle were increased .

在S1－S2间期中加发Ss，只有3／9例，心房相对不应期延长。

When Ss was introduced into S_1-S_2 interval , it caused prolongation of atrial relative period only in 3 / 9 cases .

初步结果表明：在S1－S2间期中加发St，可使心房相对不应期和有效不应期延长；

The primary results indicated : That when St was introduced into S_1-S_2 interval ( refractory period ) it prolonged atrial relative refractory period and effective refractory period .

胰腺切除后植物性神经的绝对和相对不应期的变化

The changes of absolute and relative refractory periods of the vegetative nerves after the removal of the pancreas

结果显示：特发性房颤患者的心房有效不应期缩短，相对不应期延长，早搏刺激的房间传导延缓显著增加。

The results showed that patients with IAF had shorter atrial effective refractory periods and longer atrial relative refractory periods , and also longer interatrial conduction delays .