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Left Atrial Function Is Improved in Short-Term Follow-Up after Catheter Ablation of Outflow Tract Premature Ventricular Complexes

Background: Association of premature ventricular complexes (PVC) with left ventricular systolic dysfunction (LVSD) and efficacy of catheter ablation treatment have been demonstrated in studies. The role of left atrial (LA) mechanics in the etiopathogenesis of PVC-induced cardiomyopathy (PVC-CMP) as...

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Autores principales: Kanat, Selçuk, Mutluer, Ferit Onur, Tütüncü, Ahmet, Duran Karaduman, Bilge, Bozkaya, Veciha Ozlem, Keskin, Muhammed, Uslu, Abdulkadir, Çay, Serkan, Tenekecioglu, Erhan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6630603/
https://www.ncbi.nlm.nih.gov/pubmed/31163695
http://dx.doi.org/10.3390/medicina55060241
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author Kanat, Selçuk
Mutluer, Ferit Onur
Tütüncü, Ahmet
Duran Karaduman, Bilge
Bozkaya, Veciha Ozlem
Keskin, Muhammed
Uslu, Abdulkadir
Çay, Serkan
Tenekecioglu, Erhan
author_facet Kanat, Selçuk
Mutluer, Ferit Onur
Tütüncü, Ahmet
Duran Karaduman, Bilge
Bozkaya, Veciha Ozlem
Keskin, Muhammed
Uslu, Abdulkadir
Çay, Serkan
Tenekecioglu, Erhan
author_sort Kanat, Selçuk
collection PubMed
description Background: Association of premature ventricular complexes (PVC) with left ventricular systolic dysfunction (LVSD) and efficacy of catheter ablation treatment have been demonstrated in studies. The role of left atrial (LA) mechanics in the etiopathogenesis of PVC-induced cardiomyopathy (PVC-CMP) as well as changes in LA mechanics with catheter ablation have not been studied before. Methods: A total number of 61 patients (Mean Age 43 ± 3) with idiopathic outflow tract (OT) PVCs undergoing radiofrequency catheter ablation (RFCA) were enrolled. ECG, 24 h Holter, and echocardiographic evaluation with left ventricular (LV) diastolic functions and LA volumetric assessments were performed before and three months after RFCA. Results: Along with a marginal increase in left ventricle ejection fraction (LVEF), improvement in diastolic functions and left atrial mechanics were observed in the study (LVEF 53 ± 7 versus 57 ± 6, p < 0.01) in short-term follow-up. The frequency of LV diastolic dysfunction (LVDD) decreased with catheter ablation (n = 5 to 0, p = 0.02). The overall LA function improved. Left atrium passive and overall emptying fraction (LAEF) increased significantly (0.32 ± 0.04 to 0.41 ± 0.04, p < 0.05 and 0.62 ± 0.04 to 0.65 ± 0.004, p < 0.05, respectively). Active LAEF decreased significantly (0.29 ± 0.005 to 0.24 ± 0.006, p < 0.05). Conclusions: The results of this study are indicative of “PVC-induced atriomyopathy” which responds to RFCA in short-term follow-up. Atrial dysfunction might play a role in symptoms and etiopathogenesis of LVSD.
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spelling pubmed-66306032019-08-19 Left Atrial Function Is Improved in Short-Term Follow-Up after Catheter Ablation of Outflow Tract Premature Ventricular Complexes Kanat, Selçuk Mutluer, Ferit Onur Tütüncü, Ahmet Duran Karaduman, Bilge Bozkaya, Veciha Ozlem Keskin, Muhammed Uslu, Abdulkadir Çay, Serkan Tenekecioglu, Erhan Medicina (Kaunas) Article Background: Association of premature ventricular complexes (PVC) with left ventricular systolic dysfunction (LVSD) and efficacy of catheter ablation treatment have been demonstrated in studies. The role of left atrial (LA) mechanics in the etiopathogenesis of PVC-induced cardiomyopathy (PVC-CMP) as well as changes in LA mechanics with catheter ablation have not been studied before. Methods: A total number of 61 patients (Mean Age 43 ± 3) with idiopathic outflow tract (OT) PVCs undergoing radiofrequency catheter ablation (RFCA) were enrolled. ECG, 24 h Holter, and echocardiographic evaluation with left ventricular (LV) diastolic functions and LA volumetric assessments were performed before and three months after RFCA. Results: Along with a marginal increase in left ventricle ejection fraction (LVEF), improvement in diastolic functions and left atrial mechanics were observed in the study (LVEF 53 ± 7 versus 57 ± 6, p < 0.01) in short-term follow-up. The frequency of LV diastolic dysfunction (LVDD) decreased with catheter ablation (n = 5 to 0, p = 0.02). The overall LA function improved. Left atrium passive and overall emptying fraction (LAEF) increased significantly (0.32 ± 0.04 to 0.41 ± 0.04, p < 0.05 and 0.62 ± 0.04 to 0.65 ± 0.004, p < 0.05, respectively). Active LAEF decreased significantly (0.29 ± 0.005 to 0.24 ± 0.006, p < 0.05). Conclusions: The results of this study are indicative of “PVC-induced atriomyopathy” which responds to RFCA in short-term follow-up. Atrial dysfunction might play a role in symptoms and etiopathogenesis of LVSD. MDPI 2019-06-03 /pmc/articles/PMC6630603/ /pubmed/31163695 http://dx.doi.org/10.3390/medicina55060241 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kanat, Selçuk
Mutluer, Ferit Onur
Tütüncü, Ahmet
Duran Karaduman, Bilge
Bozkaya, Veciha Ozlem
Keskin, Muhammed
Uslu, Abdulkadir
Çay, Serkan
Tenekecioglu, Erhan
Left Atrial Function Is Improved in Short-Term Follow-Up after Catheter Ablation of Outflow Tract Premature Ventricular Complexes
title Left Atrial Function Is Improved in Short-Term Follow-Up after Catheter Ablation of Outflow Tract Premature Ventricular Complexes
title_full Left Atrial Function Is Improved in Short-Term Follow-Up after Catheter Ablation of Outflow Tract Premature Ventricular Complexes
title_fullStr Left Atrial Function Is Improved in Short-Term Follow-Up after Catheter Ablation of Outflow Tract Premature Ventricular Complexes
title_full_unstemmed Left Atrial Function Is Improved in Short-Term Follow-Up after Catheter Ablation of Outflow Tract Premature Ventricular Complexes
title_short Left Atrial Function Is Improved in Short-Term Follow-Up after Catheter Ablation of Outflow Tract Premature Ventricular Complexes
title_sort left atrial function is improved in short-term follow-up after catheter ablation of outflow tract premature ventricular complexes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6630603/
https://www.ncbi.nlm.nih.gov/pubmed/31163695
http://dx.doi.org/10.3390/medicina55060241
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