Cathrter Aboation of The Posteroseptal Accessory Pathways.
10.4070/kcj.1997.27.4.407
- Author:
Moon Hyoung LEE
1
;
Shinki AHN
;
Bon Kwon KU
;
Kil Jin JANG
;
Geon Young KIM
;
Sung Soon KIM
;
Dong Jin OH
Author Information
1. Cardiology Division, Yonsei Cardiovascular Center Yonsei University, College of Medicine, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Catheter ablation;
Posteroseptal accessory pathways
- MeSH:
Atrioventricular Block;
Catheter Ablation;
Catheters;
Coronary Sinus;
Female;
Follow-Up Studies;
Hand Strength;
Humans;
Learning;
Pneumothorax;
Recurrence;
Shock;
Tachycardia;
Veins
- From:Korean Circulation Journal
1997;27(4):407-416
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: The ablation of accessory pathways(APs) using radiofrequency(RF) energy has been establihed as a primary modality of treatment for atrioventricular reentranr tachycardia with probrn safety and high rate of success. However, the ablation of posteroseptal(PS) APs had been recognized as being more difficult to ablate than those in other location because of the complex three dimensional anatony of the posterior apace, and multifarious approaches have been proposed. We analyzed electrophysiologic characteristics and results of catheter ablation of 70 consecutive patients, who underwent RF ablation of PS APs with or without booster direct current(DC) shock. METHODS: Teh AP location was confirmed to be in the PS region, ablation was attepmted at the atrial aspect of the tricuspid annulus adjacent to the coronary sinus ostium, within the coronary sinus in couding middle cardiac vein, or underneath the mitral annulus close to the septum using retrograde transaortic approach if deemed necessory. A continuous, unmodulated sine wave radiofr-equency generator was used as the source of energy for ablation. The site was considered optimal for ablation when the electrogram obtained from the ablation catheter had one or more of the following characteristics : (1) short VA intervals with an A : V ratio of
