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目的 探讨经食管左心房调搏术 (TEAP)在正常小儿窦房结和房室结功能评价中的价值。方法 采用定数刺激法测定 10 2例正常小儿窦房结传导时间 (SACT) ,用定时刺激法测定窦房结恢复时间(SNRT)、校正窦房结恢复时间 (CSNRT)、窦房结恢复时间指数 (SNRTI)及房室结的传导功能。结果 除SNRTI 在各年龄组间无明显差异外 ,余各项指标均随年龄减小而减小。结论 TEAP可用于评价小儿窦房结和房室结功能。
Objective To investigate the value of transesophageal left atrial pacing (TEAP) in functional evaluation of sinus node and atrioventricular node in normal children. Methods Stimulation time (SACT) was measured in 102 normal children by the method of quantitative stimulus. The time of sinus node recovery (SNRT), the time of sinus node recovery (CSNRT), the index of recovery time of sinus node (SNRTI) and atrioventricular node conduction function. Results except SNRTI no significant difference between the age groups, the remaining indicators are diminished with age. Conclusion TEAP can be used to evaluate the sinus node and atrioventricular node function in children.