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经食道心房调搏术测定,212例正常小儿和26例窦房结功能不良(SND)患儿的窦房结功能,结果正常小儿窦房结功能上限为:窦房结恢复时间(SNRT)<6岁1050ms,>6岁1150ms;校正窦房结恢复时间(CSNRT)350ms;窦房结恢复时间指数(SNRTI)l.6;窦房结传导时间(SACT)<6岁130ms,>6岁150ms。SND患儿各项结果均明显高于正常上限,部分患儿检出异位逸搏和窦房结恢复时间继发延长现象。本文证实,经食道心房调搏测定窦房结功能为一种无创性心电生理检查,其结果可靠,耐受性好,是小儿SND诊断有价值的检查方法。
Transoral esophageal atrial pacing was performed in 212 normal children and 26 children with sinus node dysfunction (SND). The results showed that the upper limit of sinus node function in normal children was: sinus node recovery time (SNRT) < 6 years old 1050ms,> 6 years 1150ms; corrected sinus node recovery time (CSNRT) 350ms; sinus node recovery time index (SNRTI) l.6; sinus node conduction time (SACT) . The results of children with SND were significantly higher than the upper limit of normal, some children were detected ectopic esophageal recovery and sinus node recovery time secondary to prolongation. This paper confirms that transesophageal atrial pacing determination of sinus node function as a noninvasive electrophysiological examination, the results of reliable, well tolerated, is a valuable SND diagnosis in children.