Premature Atrial Complex With P'R Prolongation Indicates Multiple Atrioventricular Nodal Pathways

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Background The goal of the present study was to test if ambulatory Holter recordings can predict the electrophysiologic study (EPS) findings in patients with supraventricular tachycardia (SVT). Methods and Results The study involved 110 patients with SVT who underwent Holter recording, and then EPS. The hypotheses were that (1) a P'R interval of premature atrial complexes (PACs) between 280 and 400 ms in the Holter recordings predicted dual atrioventricular nodal (AVN) pathways, (2) P'R interval >400 ms predicted triple or more AVN pathways, and (3) SVT initiated by a single PAC suggested easy SVT induction during the EPS. The EPS revealed dual AVN pathways in 14 (93%) of 15 patients with P'R intervals between 280 and 400 ms on the Holter recordings, and triple or more AVN pathways in 18 (90%) of 20 patients with P'R intervals >400 ms. In addition, a single extrastimulus easily induced SVT during the EPS in 11 (85%) of 13 patients in whom SVT was initiated by a single PAC during Holter recording. Conclusion The ambulatory Holter recording criteria specifically predicted the EPS findings, thereby providing useful advance information. (Circ J 2005; 69: 1233 - 1236)<br>

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  • Circulation Journal

    Circulation Journal 69 (10), 1233-1236, 2005

    一般社団法人 日本循環器学会

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