PMID: 9654220Jul 8, 1998Paper

Preserved autonomic modulation of the sinus and atrioventricular nodes following posteroseptal ablation for treatment of atrioventricular nodal reentrant tachycardia

Journal of Cardiovascular Electrophysiology
P KowallikM Meesmann

Abstract

Following radiofrequency catheter ablation of AV nodal reentrant tachycardia (AVNRT), inappropriate sinus tachycardia may occur, possibly due to damage to autonomic cardiac nerve fibers. Furthermore, inducibility of AVNRT is often critically dependent on the autonomic balance. We investigated whether successful ablation of AVNRT is associated with an alteration of autonomic input to the sinus and AV nodes. To estimate changes in the autonomic modulation of the sinus and AV nodes, power spectra of beat-to-beat PP and PR intervals were analyzed from high-quality nighttime ECG recordings of 11 patients before and after radiofrequency application. Normalized HF power (nHF) of PP and PR intervals was used as an index of efferent vagal modulation and the LF/HF ratio as an index of sympathovagal balance of the sinus node (PP) and AV node (PR). Before ablation, LF/HF(PP) was 3.2 and nHF(PP) was 0.3 in the sinus node. For the AV node, LF/HF(PR) was 1.2 and nHF(PR) was 0.5. Following ablation, LF/HF(PP) (3.5) and nHF(PP) (0.3) of the PP intervals did not change. Similarly to the sinus node, there were no changes in the autonomic modulation of the AV node, as both LF/HF(PR) (1.2) and nHF(PR) (0.5) remained unchanged. Our results indicate ...Continue Reading

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Citations

Jul 25, 2013·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·Stepan HavranekDan Wichterle
Jan 20, 2006·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Z EmkanjooM A Sadr-Ameli
Jul 7, 2011·Heart Views : the Official Journal of the Gulf Heart Association·Ali Al-SayeghAbdul Mohammed Shukkur
Jun 12, 2016·Journal of the American Heart Association·Xiaomeng YinYanzong Yang
Nov 15, 2006·Pacing and Clinical Electrophysiology : PACE·Mehdi RazaviAli Massumi
Jun 23, 2018·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Brian Olshansky, Renee M Sullivan
Dec 23, 2004·Pacing and Clinical Electrophysiology : PACE·Steven M MarkowitzBruce B Lerman

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