Comparison of the effect of ethanol infusion into the vein of Marshall between with and without collateral veins.

Autor:	Ishimura, Masayuki, Yamamoto, Masashi, Himi, Toshiharu, Kobayashi, Yoshio
Předmět:	MITRAL valve surgery REFERENCE values INTRAVENOUS therapy COLLATERAL circulation RADIO frequency therapy ONE-way analysis of variance MULTIPLE regression analysis ATRIAL fibrillation CATHETER ablation POSTOPERATIVE care FISHER exact test TREATMENT effectiveness COMPARATIVE studies DESCRIPTIVE statistics CHI-squared test KAPLAN-Meier estimator ETHANOL CORONARY arteries PULMONARY veins MITRAL valve
Zdroj:	Journal of Cardiovascular Electrophysiology; Jan2024, Vol. 35 Issue 1, p25-34, 10p
Abstrakt:	Background: Despite the potential benefits of ethanol infusion into the vein of Marshall (EIVOM) for atrial fibrillation (AF) ablation, concerns about its reversible and unpredictable effects persist. Objective: To assess the effectiveness of EIVOM in the vein of Marshall (VOM) with collateral veins (CVs) during mitral isthmus and AF ablation. Methods: We included 142 AF patients. EIVOM was performed before radiofrequency ablation, and low‐voltage areas (<0.5 mV) were measured before, immediately after, and 1 h after EIVOM. Results: Among the 142 patients, 93 (65%) underwent EIVOM, and among these, 35 (37%) were found to have CVs. In the VOM with CVs group, areas with low voltage measured 0 (0–1.85) cm2 before EIVOM, 6.9 (4.1–11.2) cm2 immediately after EIVOM, and 5.7 (3.5–10.6) cm2 1 h after EIVOM. Conversely, in the group designated as VOM without CVs—from which the nine leakage cases were excluded—the areas measured 0 (0–1.35) cm2, 5.5 (2.6–11.8) cm2, and 4.7 (1.8–13.5) cm2 at the respective time points. MI line block was fully achieved in 89% (31/35) of cases in the VOM with CVs group and 88% (44/49) in the VOM without CVs groups (p =.94). There was no significant difference in the outcome of AF ablation between these groups (log‐rank p =.73). Additionally, no significant difference was observed between EIVOM (+) and EIVOM (−) groups (log‐rank p =.59). Conclusion: EIVOM effectively creates MI line block, and its beneficial effects are sustained for at least 1 h after the procedure despite the low‐voltage areas showing a slight reduction in size. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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