Quantitative Superior Vena Cava Isolation in Addition to Pulmonary Vein Isolation for Paroxysmal Atrial Fibrillation
SCORE
Efficacy and Safety of Quantitative Superior Vena Cava Isolation in Addition to Pulmonary Vein Isolation in Patients With Paroxysmal Atrial Fibrillation: the SCORE Randomized Controlled Trial
1 other identifier
interventional
290
1 country
1
Brief Summary
Pulmonary vein isolation (PVI) for paroxysmal atrial fibrillation (PAF) has limited success. The superior vena cava (SVC) has been identified as one of the most common non-pulmonary vein triggers for PAF. It is estimated that SVC isolation (SVCI) could improve the clinical results for patients with PAF. However, results from previous studies about SVCI remain controversial. It is possible that safety concerns for SVCI outweigh its benefits and lead to inadequate ablation. To address this issue, the introduction of a quantitative ablation index (AI) for SVCI may provide a solution. The goal of this prospective, randomized controlled trial is to test the efficacy and safety of quantitative SVCI in addition to PVI in PAF. Participants with PAF will be randomly assigned to either PVI group or PVI+ quantitative SVCI group in a 1:1 ratio and will be followed up for 12 months. The main questions it aims to answer are:
- 1.Evaluate the efficacy of PVI+SVCI guided by quantitative AI.
- 2.Assess the safety of PVI+SVCI guided by quantitative AI.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable atrial-fibrillation
Started Mar 2024
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 8, 2023
CompletedFirst Posted
Study publicly available on registry
June 18, 2023
CompletedStudy Start
First participant enrolled
March 17, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 30, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedFebruary 14, 2025
February 1, 2025
1.5 years
June 8, 2023
February 12, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Proportion of patients with maintenance of sinus rhythm measured by 14-day Holter ECG at 3 months follow-up
The proportion of patients that are freedom from AF, atrial flutter, or atrial tachycardia for longer than 30 seconds measured by 14-day Holter ECG at 3 months after the index ablation.
3 months
Secondary Outcomes (2)
Proportion of patients with maintenance of sinus rhythm measured by 14-day Holter ECG at 12 months follow-up
12 months
Incidence of treatment emergent adverse events post ablation
12 months
Study Arms (2)
PVI
ACTIVE COMPARATORParticipants in this group will receive pulmonary vein isolation.
PVI+SVCI
EXPERIMENTALParticipants in this group will receive superior vena cava isolation in addition to pulmonary vein isolation.
Interventions
pulmonary vein isolation and superior vena cava isolation guided by quantitative ablation index
Eligibility Criteria
You may qualify if:
- Symptomatic paroxysmal AF that are unresponsive to antiarrhythmic drugs (one or more than one).
- Willing to undergo catheter ablation for AF.
- Age: 40-75 years old.
You may not qualify if:
- History of any type of catheter ablation for cardiac arrhythmias.
- History of any type of thoracic surgery, including cardiac surgery.
- History of malignant tumors.
- History of permanent pacemaker implantation.
- Peripherally inserted central catheter for long-term
- Heart failure (left ventricular ejection fraction ≤40% or NYHA class III\~IV).
- Sinus node dysfunction
- Allergy to contrast agents.
- Pregnancy or lactation.
- Age: \<40yrs or \>75yrs.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Chinese Academy of Medical Science, Fuwai hospital
Beijing, Beijing Municipality, 100051, China
Related Publications (13)
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PMID: 18776706BACKGROUNDMark DB, Anstrom KJ, Sheng S, Piccini JP, Baloch KN, Monahan KH, Daniels MR, Bahnson TD, Poole JE, Rosenberg Y, Lee KL, Packer DL; CABANA Investigators. Effect of Catheter Ablation vs Medical Therapy on Quality of Life Among Patients With Atrial Fibrillation: The CABANA Randomized Clinical Trial. JAMA. 2019 Apr 2;321(13):1275-1285. doi: 10.1001/jama.2019.0692.
PMID: 30874716BACKGROUNDCorrado A, Bonso A, Madalosso M, Rossillo A, Themistoclakis S, Di Biase L, Natale A, Raviele A. Impact of systematic isolation of superior vena cava in addition to pulmonary vein antrum isolation on the outcome of paroxysmal, persistent, and permanent atrial fibrillation ablation: results from a randomized study. J Cardiovasc Electrophysiol. 2010 Jan;21(1):1-5. doi: 10.1111/j.1540-8167.2009.01577.x. Epub 2009 Sep 1.
PMID: 19732237BACKGROUNDMiyazaki S, Takigawa M, Kusa S, Kuwahara T, Taniguchi H, Okubo K, Nakamura H, Hachiya H, Hirao K, Takahashi A, Iesaka Y. Role of arrhythmogenic superior vena cava on atrial fibrillation. J Cardiovasc Electrophysiol. 2014 Apr;25(4):380-386. doi: 10.1111/jce.12342. Epub 2014 Jan 6.
PMID: 24320606BACKGROUNDSantangeli P, Zado ES, Hutchinson MD, Riley MP, Lin D, Frankel DS, Supple GE, Garcia FC, Dixit S, Callans DJ, Marchlinski FE. Prevalence and distribution of focal triggers in persistent and long-standing persistent atrial fibrillation. Heart Rhythm. 2016 Feb;13(2):374-82. doi: 10.1016/j.hrthm.2015.10.023. Epub 2015 Oct 23.
PMID: 26477712BACKGROUNDDa Costa A, Levallois M, Romeyer-Bouchard C, Bisch L, Gate-Martinet A, Isaaz K. Remote-controlled magnetic pulmonary vein isolation combined with superior vena cava isolation for paroxysmal atrial fibrillation: a prospective randomized study. Arch Cardiovasc Dis. 2015 Mar;108(3):163-71. doi: 10.1016/j.acvd.2014.10.005. Epub 2015 Feb 7.
PMID: 25662699BACKGROUNDEjima K, Kato K, Iwanami Y, Henmi R, Yagishita D, Manaka T, Fukushima K, Arai K, Ashihara K, Shoda M, Hagiwara N. Impact of an Empiric Isolation of the Superior Vena Cava in Addition to Circumferential Pulmonary Vein Isolation on the Outcome of Paroxysmal Atrial Fibrillation Ablation. Am J Cardiol. 2015 Dec 1;116(11):1711-6. doi: 10.1016/j.amjcard.2015.09.005. Epub 2015 Sep 10.
PMID: 26434513BACKGROUNDSharma SP, Sangha RS, Dahal K, Krishnamoorthy P. The role of empiric superior vena cava isolation in atrial fibrillation: a systematic review and meta-analysis of randomized controlled trials. J Interv Card Electrophysiol. 2017 Jan;48(1):61-67. doi: 10.1007/s10840-016-0198-2. Epub 2016 Oct 14.
PMID: 27743289BACKGROUNDHiguchi K, Yamauchi Y, Hirao K, Marrouche NF. The importance of superior vena cava isolation in ablation strategy for atrial fibrillation. Curr Opin Cardiol. 2013 Jan;28(1):2-6. doi: 10.1097/HCO.0b013e32835b099b.
PMID: 23128496BACKGROUNDZhang T, Wang Y, Liang Z, Zhao H, Han Z, Wang Y, Wu Y, Ren X. Effect of Combined Pulmonary Vein and Superior Vena Cava Isolation on the Outcome of Second Catheter Ablation for Paroxysmal Atrial Fibrillation. Am J Cardiol. 2020 Jun 15;125(12):1845-1850. doi: 10.1016/j.amjcard.2020.03.030. Epub 2020 Apr 3.
PMID: 32305224BACKGROUNDYamashita S, Tokuda M, Isogai R, Tokutake K, Yokoyama K, Narui R, Kato M, Tanigawa S, Inada K, Matsuo S, Miyanaga S, Sugimoto K, Yoshimura M, Yamane T. Spiral activation of the superior vena cava: The utility of ultra-high-resolution mapping for caval isolation. Heart Rhythm. 2018 Feb;15(2):193-200. doi: 10.1016/j.hrthm.2017.09.035. Epub 2017 Sep 22.
PMID: 28943481BACKGROUNDMiyazaki S, Taniguchi H, Kusa S, Uchiyama T, Hirao K, Iesaka Y. Conduction recovery after electrical isolation of superior vena cava--prevalence and electrophysiological properties. Circ J. 2013;77(2):352-8. doi: 10.1253/circj.cj-12-0951. Epub 2012 Oct 23.
PMID: 23090663BACKGROUNDGuan W, Li X, Chen K, Yao Y, Liu J. Anatomical variation of femoral vessels and ultrasound-guided femoral vein puncture for catheter ablation of arrhythmias. Pacing Clin Electrophysiol. 2024 Feb;47(2):330-335. doi: 10.1111/pace.14924. Epub 2024 Jan 19.
PMID: 38240379DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jun Liu, MD, PhD
Chinese Academy of Medical Sciences, Fuwai Hospital
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
June 8, 2023
First Posted
June 18, 2023
Study Start
March 17, 2024
Primary Completion
September 30, 2025
Study Completion
December 31, 2025
Last Updated
February 14, 2025
Record last verified: 2025-02
Data Sharing
- IPD Sharing
- Will not share