o:2868 Pulmonary vein isolation outcome degree is a new score for efficacy of atrial fibrillation catheter ablation en ABSTRACT: This study introduces the pulmonary vein isolation outcome degree (PVIOD) as a new semiquantitative measure for the efficacy of atrial fibrillation (AF) catheter ablation and reports the determination of predictors associated with PVIOD. The median follow-up periods of 117 patients after the first and last ablation were, respectively, 82 (IQR 15) and 72 (IQR 30) months. PVIOD 1 included 32.5% of patients, those with successful single pulmonary vein isolation (PVI); PVIOD 2 included 29.1% of subjects, those with success after multiple procedures; PVIOD 3 comprised 14.5% of patients, those with clinical success; and PVIOD 4 included 23.9% of cases, those with procedural and clinical failure. In the multivariate ordinal logistic regression analysis, PVIOD 1–4 were independently associated with longstanding persistent AF with paroxysmal AF as the referent category (odds ratio (OR), 3.5; 95% confidence interval (95% CI), 1.1–10.7 (p = 0.031)), left atrial (LA) diameter (OR, 1.2; 95% CI, 1.1–1.3 (p = 0.001)) and left ventricular ejection fraction (LVEF) (OR, 0.9; 95% CI, 0.86–1.0 (p = 0.038)). LA size > 41 mm, LVEF ≤ 50% and longstanding persistent AF are strong predictors of AF recurrence. PVIOD 1–4 offer the most exact long-term prognosis of PVI. The purpose of the present article is to expand the quantitative measure of procedural success in the medical and biological fields. Key words: atrial fibrillation, left atrial diameter, left ventricular ejection fraction, CHA2DS2 -VASc score, pulmonary vein isolation 91552100 125450249 1552101 2077-0383 1552099 10.3390/ jcm10245827 2023-09-29T13:09:30.152Z 44 yes 46 Ružica Jurčević 4163943 0000-0002-6433-6860 2021 46 Lazar Angelkov 619111 0000-0002-9136-4971 2021 46 Nebojša Tasić 12750439 0000-0003-2465-1708 2021 46 Milosav Tomović 10184551 0000-0002-2190-5701 2021 46 Dejan Kojić 54503433 0000-0001-9107-4520 2021 46 Petar Otašević 12787303 0000-0002-0362-5765 2021 46 Milovan Bojić 1394535 0000-0002-0051-041X 2021 application/pdf 9167561 https://unilib.phaidrabg.rs/o:2868 no yes 16 70 616.12-008.33 92000001 71A11 Journal of clinical medicine 10 24 1 17 2021