Evaluation of electrophysiological diagnosis of concealed accessory pathway (CAP) during transesophageal atrial pacing (TEAP)
Li, Q.; Wang, Z.; Zhou, S.
Hunan Yi Ke Da Xue Xue Bao 22(1): 49-52
1997
ISSN/ISBN: 1000-5625 PMID: 9868027 Document Number: 470127
CAP were diagnosed by TEAP using RP-E intervals in 55 cases of paroxysmal supraventricular tachycardia (PSVT). There were no obvious CAP manifestations of ECG in those cases, the mean RP-E interval during tachycardia was 140 +- 29ms, and the lower limit of hivin x +- 2s was 82ms. Among them, the VA intervals were measured by electrocardiophysiological examination in 21 cases. The mean value was 130 +- 25 ms, and the lower limit of hivin x +- 2x was 80 ms. The results suggest that RP-E over 82ms may be an important diagnostic threshold cut off point of atrioventricular reciprocation.