不同基础起搏频率与房室结有效不应期的相关性  

Relationship between the basic pacing frequency of transesophageal atrial pacing and atrio-ventricular node absolute refractory period

作　　者：杨丽红[1] 乔鹏[2] 徐金义[3] 吴志红[4] 李涵[5] 杨蕊珂[5] 张强[5] 

机构地区：[1]郑州大学第二附属医院心电图科,郑州450014 [2]郑州大学基础医学院生理教研室,450000 [3]河南省人民医院心功能科,郑州450000 [4]河南省胸科医院心电图科,450000 [5]郑州大学第二附属医院心内科,郑州450014

出　　处：《中国实用神经疾病杂志》2013年第10期27-29,共3页Chinese Journal of Practical Nervous Diseases

基　　金：河南省2011年科技攻关计划项目;编号:112102310665

摘　　要：目的探讨食管心房调搏基础起搏频率对房室结有效不应期的影响。方法对56例既往有晕厥史患者进行食管心房调搏检查时,应用不同基础起搏频率(按起搏频率分3组:A组90～100次/min,B组100～110次/min,C组110～120次/min)分别测出房室结前向传导有效不应期(AVNERP)并进行比较。结果随着基础起搏频率的加快房室结前向传导有效不应期逐渐延长,当起搏频率大于100次/min时差异无统计学意义(P>0.05)。结论随着起搏频率的增加房室结有效不应期随之延长,故在描写房室结有效不应期时应注明起搏频率,以达到规范化,为临床医生诊断治疗提供可靠资料。Objective To investigate the relationship between the basic pacing frequency of transesophageal atrial pacing （TEAP） and atrio-ventricular node absolute refractory period （AVNERP）. Methods The study included 56 patients with par- oxysmal aventricular tachyeardia. All the patients were examined by different basic pacing frequencies of Transesophageal atrialpacing. All the patients were divided into three groups by the pacing frequency：group A of 90~100 times / minute, group B of 100-110 times / minute, group C of 1104120 times / mi- nute. The atrio-ventrieular node absolute refractory periods wereexamined and compared. Results The basic pacing frequency will increase antroventricular node effective refractory period ex- tension. As the basic pacing frequency is above 100 times/minute, there is no statistical difference（P〈0.05）. Conclusion With the increase of pacemaker frequency, antroventricular node effective refractory period is longer. So describing atrio-ven- tricular node absolute refractory period （AVNERP）, we should explain the pacing frequency, and provide reliable reference material to clinician.

关 键 词：食管心房调搏 基础起搏频率 不应期 

分 类 号：R741.041[医药卫生—神经病学与精神病学]