{"id":"42d00a18acf2","type":"article","url":"https://hartvaat.nl/2024/03/01/svc-isolatie-bij-paroxysmaal-af-zonder-geinduceerde-svc-aritmieen/","title":"SVC-isolatie bij paroxysmaal AF zonder geïnduceerde SVC-aritmieën","title_en":"Role of electroanatomical mapping-guided superior vena cava isolation in paroxysmal atrial fibrillation patients without provoked superior vena cava triggers: a randomized controlled study.","category":"atriumfibrilleren","category_label":"Atriumfibrilleren","professions":["cardioloog"],"tags":[],"journal":"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","doi":"10.1093/europace/euae039","source_url":"https://doi.org/10.1093/europace/euae039","authors":["Yan Dong","Dongsheng Zhao","Xinguang Chen","Linshen Shi","Qiushi Chen","Haiyan Zhang","Yue Yu","Inam Ullah","Pipin Kojodjojo","Fengxiang Zhang"],"significance":5,"published":"2024-03-01","source_date":"2024-03-01","image":"","kennis":[],"congress":"","summary_en":"This study found that empirical superior vena cava isolation during AF ablation does not improve outcomes in paroxysmal AF patients without demonstrated SVC triggers, arguing against routine SVC isolation.","created":"2026-07-03T10:30:48Z","updated":"2026-07-03T13:29:51Z","licence":"Citeer vrij, met bronvermelding en een link naar hartvaat.nl (de url van het record). Samenvattingen zijn redactioneel werk van HartVaat; de oorspronkelijke publicaties blijven van hun uitgevers (doi). Geen medisch advies.","body_markdown":"Studie onderzocht of routinematige SVC-isolatie bij paroxysmaal AF meerwaarde biedt wanneer er geen SVC-triggers zijn. De additionele isolatie verbeterde de uitkomsten niet, wat selectief isoleren op indicatie ondersteunt.","abstract_original":"AIMS: Data about whether empirical superior vena cava (SVC) isolation (SVCI) improves the success rate of paroxysmal atrial fibrillation (PAF) are conflicting. This study sought to first investigate the characteristics of SVC-triggered atrial fibrillation and secondly investigate the impact of electroanatomical mapping-guided SVCI, in addition to circumferential pulmonary vein isolation (CPVI), on the outcome of PAF ablation in the absence of provoked SVC triggers. METHODS AND RESULTS: A total of 130 patients undergoing PAF ablation underwent electrophysiological studies before ablation. In patients for whom SVC triggers were identified, SVCI was performed in addition to CPVI. Patients without provoked SVC triggers were randomized in a 1:1 ratio to CPVI plus SVCI or CPVI only. The primary endpoint was freedom from any documented atrial tachyarrhythmias lasting over 30 s after a 3-month blanking period without anti-arrhythmic drugs at 12 months after ablation. Superior vena cava triggers were identified in 30 (23.1%) patients with PAF. At 12 months, 93.3% of those with provoked SVC triggers who underwent CPVI plus SVCI were free from atrial tachyarrhythmias. In patients without provoked SVC triggers, SVCI, in addition to CPVI, did not increase freedom from atrial tachyarrhythmias (87.9 vs. 79.6%, log-rank P = 0.28). CONCLUSION: Electroanatomical mapping-guided SVCI, in addition to CPVI, did not increase the success rate of PAF ablation in patients who had no identifiable SVC triggers. REGISTRATION: ChineseClinicalTrials.gov: ChiCTR2000034532."}