Direct recording of sinus node potentials using electrode catheter techniques.

S Lévy; J Lekieffre

doi:10.1002/clc.4960170411

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Direct recording of sinus node potentials using electrode catheter techniques.

S Lévy·J Lekieffre

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Abstract

Direct recording of sinus node (SN) potentials using electrode catheter techniques is feasible and may be achieved in 50-86% of patients. It takes 15-30 min using commercially available catheters. However, obtaining stable recordings is often difficult, necessitating direct contact of the distal electrode with the endocardial area underlying the sinus node. There is a wide range in sinoatrial (SA) intervals (30-150 ms) obtained, and an overlap exists between patients with normal and abnormal SN function. Consequently, measurement of the SA interval alone may not be a reliable tool for diagnosing SN dysfunction. However, direct SN recordings have a theoretic value, allowing differentiation of disorders of SA conduction from disorders of the impulse generation.

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S Lévy, J Lekieffre. 1994. Direct recording of sinus node potentials using electrode catheter techniques.. https://doi.org/10.1002/clc.4960170411

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