Evaluation of Recurrence Risk of Atrial Fibrillation After Cryoballoon Ablation

Shanghai 10th People's Hospital600 enrolled

Overview

The recurrence of atrial fibrillation(AF) after pulmonary vein ablation with cryoballoon is conducted by many factors . The previous studies found larger left atrial and longer AF duration are tied to higher risk of AF recurrence. The characters of ablation procedure is also of critical importance to durable clinical success such as temperature features and time-to-isolation (TTI). The aim of our study is to develop an tool of recurrence risk evaluation with both pre-procedure and procedure factors.

Study Type

OBSERVATIONAL

Enrollment

600

Conditions

Atrial Fibrillation

Interventions

cryoballoon ablationDEVICE

Patients with AF will accept cryoballoon ablation.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 80 Years

Medical Language ↔ Plain English

Inclusion Criteria: Patients with paroxysmal AF and accept cryoballoon ablation. Exclusion Criteria: * left atrium (LA) diameter (anterior-to-posterior)\>55mm on transthoracic echocardiography (TTE) * the presence of thrombus in the LA or left atrial appendage (LAA) on transesophageal echocardiography (TEE) * uncorrected heart failure (NYHA class III or IV), * concomitant moderate or severe valvular heart disease or bioprosthetic valve, * malignancy necessitating chemotherapy.

Outcomes

Primary Outcomes

the time to atrial fibrillation recurrent

Time frame: 1year after the cryoballoon ablation

Central Contacts

Yawei Xu, doctor

CONTACT

13916698181 xuyawei@tongji.edu.cn

Data from ClinicalTrials.gov

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