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采用 Gomes 氏法Ⅱ记录了48例窦房结电图,其中正常对照组25例,可疑病窦组7例,病窦组16例。记录成功者41例。窦房传导时间:对照组75.5±17.8ms,可疑病窦组88.0±3.5ms,病窦组171.7±39.4ms。经统计学比较,对照组可凝病窦组无明显差异,而对照组病窦组差异明显。本文还观察了不同下限截止频率对记录窦房结电图的影响;按压颈动脉窦、注射阿托品及心房刺激对窦房传导时间的影响。分析了 Gomes 氏法Ⅱ的优劣,直接测量窦房传导时间的优点及限度。
Gomes’ method Ⅱ recorded 48 cases of sino-atrial node electrogram, including 25 cases in normal control group, 7 cases in suspected sick sinus group and 16 cases in sick sinus group. 41 cases were recorded successfully. Stroke conduction time: control group 75.5 ± 17.8ms, suspected sick sinus group 88.0 ± 3.5ms, sick sinus group 171.7 ± 39.4ms. After statistical comparison, there was no significant difference between the control group and the sick sinus group in the control group. This article also observed the effect of different cut-off frequencies on the recording of sino-atrial node electrograms; the effect of pressing carotid sinus, atropine injection and atrial stimulation on sinoatrial conduction time. The advantages and disadvantages of Gomes’ method Ⅱ are analyzed, and the advantages and limitations of sinoatrial conduction time are directly measured.