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本文报告对2例病窦及10例非病窦患者经右心导管法描记窦房结电图(SNE)及直接测定窦房传导时间(SACT)的结果,并与用短暂连续心房起搏法间接测定的SACT 对比。SNE 描记成功率为91%。非病窦患者SACT 的直接法(10例)测定值为77.6±6.1ms,间接法(7例)测定值为78.4±10.1ms,两者无显著差异。病窦患者(1例)SACT 的直接法为199ms。短暂连续心房起搏能影响窦房结的自律性和窦房传导,致SACT 的测定可能不够准确。初步认为SNE 描记和SACT 的直接测定是评价窦房结功能的有效而实用的新技术,值得进一步研究。
In this paper, we report the results of right heart catheterization of sinus node electrocardiography (SNE) and direct determination of SAC in 2 patients with sick sinus and 10 patients with non-sick sinus, and compared with the results of short-term continuous atrial pacing Indirect determination of SACT contrast. The success rate of SNE tracing was 91%. The direct method (10 cases) of SACT patients with non-sick sinus was 77.6 ± 6.1ms, while the indirect method (7 cases) was 78.4 ± 10.1ms, there was no significant difference between them. Sick sinus patients (1 case) SACT direct method is 199ms. Short-term continuous atrial pacing can affect sinus node autonomic and sinoatrial conduction, resulting in the determination of SACT may not be accurate enough. It is initially believed that the direct determination of SNE and SACT is an effective and practical new technique for evaluating the function of the sinus node, which deserves further study.