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방실결절 회귀성 빈맥환자의 도자절제시 성공한 위치의 심내 심전도 소견

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Affiliated Author(s)
김윤년김기식김권배박재호
Alternative Author(s)
Kim, Yoon NyunKim, Kee SikKim, Kwon BaePark, Jae Ho
Journal Title
순환기
ISSN
1225-164X
Issued Date
1998
Keyword
Slow pathwayAtrioventricular nodal reentrant tachycardiaRadiofrequency catheter ablation
Abstract
Ablation of the slow pathway in
patients with atrioventricular nodal reentrant tachycardia (AVNRT) can be performed by using a specific intracardiac electrogram findings predicting a successful radiofrequency catheter ablation. The purpose of the present study is to recognize a specific intracardiac electrogram findings predicting a successful sites of radiofrequency catheter ablation in patients with AVNRT. Materials and Methods:The study population consisted of the 18 patients (7 males, mean age:46 yr) to undergo successful catheter ablation using radiofrequency current in order to eliminate AVNRT from January 1993 to september 1994. We have analyzed local intracardiac electrogram at successful and unsuccessful sites of radiofrequency catheter ablation before the radiofrequency application: Atrial electrogram amplitude, duration, number of peaks in atrial electrogram, atrial/ventricular (A/V) electrogram amplitude ratio, and presence of His potential and/or slow potential. Results:Of 18 patients, 16 patients underwent a slow pathway ablation, the other 2 patients a fast pathway ablation. The mean A/V electrogram amplitude ratio at successful and unsuccessful sites was 0.69±0.91 and 1.86±2.03, respectively. The mean atrial electrogram duration and number of peaks at successful and unsuccessful sites was 57±16 msec vs 69±16 msec and 1.7±0.5 vs 2.2±0.7, respectively. His bundle electrogram was seen in one slow pathway ablated and one fast pathway ablated patient. No slow potential could be identified in any of these 18 patients. Conclusion:We think that A/V electrocardiogram amplitude ratio below 0.5 at posterior interatrial septum along tricuspid annulus is important marker indicating a successful ablation sites. (Korean Circulation J 1998;28(11):1852-1860) KEY WORDS:Slow pathway·Atrioventricular nodal reentrant tachycardia·Radiofrequency catheter ablation.
Alternative Title
Intracardiac Electrogram at Successful Site of Radiofrequency Catheter Ablation in Patients with Atrioventricular Nodal Reentrant Tachycardia
Department
Dept. of Internal Medicine (내과학)
Publisher
School of Medicine
Citation
배장호 et al. (1998). 방실결절 회귀성 빈맥환자의 도자절제시 성공한 위치의 심내 심전도 소견. 순환기, 28(11), 1852–1860.
Type
Article
ISSN
1225-164X
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/36731
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
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