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- Title
Relationship between Age and Anterograde Refractoriness of the Accessory Pathway in Wolff-Parkinson-White Patients.
- Authors
Michelucci, Antonio; Padeletti, Luigi; Mezzani, Alessandro; Giovannini, Tiziana; Miceli, Michele; Cupelli, Vincenzo; Musante, Roberto
- Abstract
In 22 patients (age range 13-40 years) with Wolff-Parkinson-White ECG pattern without evidence of associated cardiomyopathy we measured the anterograde effective refractory 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 years). This is noteworthy in the light of reports that, over the years: (1) typical Wolff-Parkinson-White ECG signs can disappear and (2) the frequency of tachycardic episodes decreases. Our data suggest a lower risk of high ventricular rates during atrial fibrillation with increasing age. Copyright © 1989 S. Karger AG, Basel
- Publication
Cardiology, 1989, Vol 76, Issue 4, p270
- ISSN
0008-6312
- Publication type
Article
- DOI
10.1159/000174503