Value of P Wave in Determining the Site of Accessory Pathway during Orthodromic Atrioventricular Reentry Tachycardia.
10.4070/kcj.1990.20.1.121
- Author:
Chee Jeong KIM
;
Young Dae KIM
;
Dong Jin OH
;
Byung Hee OH
;
Myoung Mook LEE
;
Young Bae PARK
;
Yun Shik CHOI
;
Jung Don SEO
;
Young Woo LEE
- Publication Type:Original Article
- Keywords:
PSVT;
Accessory pathway;
P wave
- MeSH:
Humans;
Tachycardia*;
Tachycardia, Supraventricular
- From:Korean Circulation Journal
1990;20(1):121-127
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The P wave during orthodromic atrioventricular reentry tachycardial were analysed in 19 patients to evaluate the usefulness in identifying the location of accessory pathways. The results were as follows; 1) Definitely inverted and upright P waves in lead I represented the left-sided and right-sided pathways respectively, but the converse is not necessarily true. 2) Dome and Dart appearance in lead VI(4 cases), upright P wave in inferior leads(3 cases), and negative P wave in aVL(3 cases) suggested the left-sided pathway and deeply inverted P waves in inferior leads suggested the posteroseptal or right-sided one. 3) In 17 cases(79%), inverted P wave appeared on more than one lead among the inferior leads, which were helpful to identify the position on P wave and mechanism of supraventricular tachycardia. Although the number of cases especially with right-sided pathway was small to conclude, P wave was useful for determining the location of accessory pathway noninvasively.
