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발작성 심실상성빈맥의 발생기전에 대한 임상전기생리학적 연구
최윤식(Yun Sik Choi),도문홍(Mun Hong Doh),한병석(Byung Beak Han),김재중(Jae Joong Kim),오병희(Byung Hee Oh),박영배(Young Bae Park),서정돈(Jung Don Seo),이영우(Young Woo Lee) 대한내과학회 1989 대한내과학회지 Vol.36 No.6
N/A In order to observe the frequency of mechanisms of paroxysmal supraventricular tachycardia (PSVT) in Korea, we analyzed the electrophysiological findings of 59 patients with PSVT induced by programmed electrical stimulation on our electriphysiologic laboratory. We also compared the surface ECG and clinical findings according to the mechanisms of PSVT. The results were as follows: 1) Atrioventricular reentry (AVR) was the most common mechanism of PSVT (72.9%) and atrioventricular nodal reentry (AVNR) the second (16.9%). The remainder were intraatrial reentry (1.7%) and increased automaticity of the atrium (8.5%). 2) The age of the patients and their heart rates during tachycardia were not significantly different among the mechanisms of PSVT. 3) Functional bundle branch block during tachycardia appeared more frequently in the AVR group than the other groups (p<0.05). 4) The relationship between P wave and QRS complex during tachycardia was useful in differentiating the mechanisms of PSVT. 5) The ventriculoatrial interval on His bundle electrogram was less than 50 msec in the AVNR group, where as this interval was greater than 70 msec in the AVR group.