Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Arrhythmia/Electrophysiology
High Plasma Concentrations of Transforming Growth Factor-β and Tissue Inhibitor of Metalloproteinase-1
– Potential Non-Invasive Predictors for Electroanatomical Remodeling of Atrium in Patients With Non-Valvular Atrial Fibrillation –
Sook Kyoung KimJae Hyung ParkJong Youn KimJong Il ChoiBoyoung JoungMoon-Hyoung LeeSung Soon KimYoung-Hoon KimHui-Nam Pak
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2011 Volume 75 Issue 3 Pages 557-564

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Abstract

Background: The degree of electroanatomical remodeling of the left atrial (LA) affects the clinical outcome after rhythm control of atrial fibrillation (AF). Our hypothesis was that plasma concentrations of transforming growth factor (TGF)-β and tissue inhibitor of metalloproteinase (TIMP)-1 reflect LA voltage and structural remodeling in patients with non-valvular AF. Methods and Results: In the study, 242 patients (male 79.4%, 55.1±11.0 years old) with AF (155 paroxysmal AF, 87 persistent AF) underwent catheter ablation. Pre-ablation plasma concentrations of TGF-β and TIMP-1 and the degree of electroanatomical remodeling quantified by LA voltage map (NavX) and 3D-CT were evaluated. The mean LA voltage and volume were compared in patients with high TGF-β (≥10.0ng/ml, H-TGF) vs. low TGF-β (<10.0ng/ml, L-TGF) and high TIMP-1 (≥1.1ng/ml, H-TIMP) vs. low TIMP-1 (<1.1ng/ml, L-TIMP). Patients with H-TGF had lower mean LA voltage (P=0.014) and greater LA volume (P=0.022), particularly, posterior venous LA volume (P=0.005) than those with L-TGF. In patients with H-TIMP, the mean LA voltage (P=0.019) was lower than those with L-TIMP. LA volume was significantly higher (P<0.001) in patients with ejection fraction ≤58% than those with >58%. Conclusions: In patients with non-valvular AF, high plasma concentrations TGF-β and TIMP-1 and low ejection fraction were closely related with electroanatomical remodeling of LA. (Circ J 2011; 75: 557-564)

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© 2011 THE JAPANESE CIRCULATION SOCIETY
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