... period of the accessory pathway (ERP-AP) by extrastimulus method (at twice diastolic threshold) during atrial pacing (100/min). The ERP-AP range was 220–480 ms. There was a significant direct correlation between age and ERP-AP (r = 0.50, p < 0.01). An ERP-AP ≤ 250 ms was found in 4 patients (age ≤ 23...

... arrhythmogenic risk (group 1). This allowed us to evaluate a less known aspect, namely that of effects of training on the electrophysiologic properties of the atrium and accessory pathway. This was done utilizing a control group of 10 WPW patients who did not perform agonistic physical activity (group 2). All...

...Nils Edvardsson; Per Blomström; S.B. Olsson With advanced electrophysiological methods evaluation of functional properties and location of accessory pathways has become possible. Multiple pathways may, however, be difficult to outline with regard to localization and electrophysiological properties...

...Hideo Nagai; Shigeo Takata; Satoru Sakagami; Hiroshi Furusho; Masayuki Takamura; Toyoshi Yuasa; Ken-ichi Kobayashi Objective: The purpose of this study was to examine the feasibility of M-mode tissue Doppler imaging for localizing the accessory pathway in patients with Wolff-Parkinson-White (WPW...