摘要
目的 观察射频消融犬心房间传导通道阻断后电生理改变。方法 对 10只犬心房间传导通道阻断前后心房不应期 ,不应期离散 ,以及心房间传导时间进行测量并比较。结果 心房间传导通道的阻断未使心房不应期和不应期离散度明显改变 ,但使心房间传导时间明显延长 ,体表心电图P波间期延长 (P <0 .0 5 )。结论 心房间传导通道阻断使心房激动模式改变 。
Objective To observe the electrophysiological changes after blockage of the conducting connections between two atriums in dogs. Methods The atrial effective refractory periods, their dispersions and the conducting time between atriums were measured and compared before and after the blockage of the conducting connections between atriums in ten dogs. Results The atrial effective refractory periods and their dispersions were not changed significantly, but the conducting time and P wave duration in ECG were prolonged significantly (P<0.05) after blockage. Conclusion The atrial activation pattern was changed by the blockage of the conducting connections between atriums and the prolonged P wave duration might be regarded as a surrogate to indicate successful blockage.
出处
《中华老年多器官疾病杂志》
2004年第2期124-126,共3页
Chinese Journal of Multiple Organ Diseases in the Elderly
