atrial fibrillation, atrial tachycardia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged 18 to 80 years old; 2. recurrent persistent atrial tachycardia patients who had undergone persistent atrial fibrillation catheter ablation only once at least 3 months before enrolment; 3. refractoriness to at least one antiarrhythmic drug; 4. left atrial diametrer <=60mm.
Exclusion criteria
Exclusion criteria: 1. With uncontrolled congestive heart failure; 2. Having significant valvular disease and/or prosthetic heart valve(s); 3. With myocardial infarction or stroke within 6 months of screening; 4. With Significant congenital heart disease; 5. Ejection fraction was <40% measured by echocardiography; 6. Allergic to contrast media; 7. Contraindication to warfarin or heparin; 8. Severe pulmonary disease e.g. restrictive pulmonary disease, chronic obstructive disease (COPD); 9. Left atrial (LA) thrombus measured by pre-procedure transesophageal echocardiography; 10. having any contraindication to right or left sided heart catheterization; 11. Poor general health; 15. Life expectancy less than 6 months.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| AT termination by ablation;bidirectional block of ablation line;Long-term freedom from recurrent atrial arrhythmias; | — |
Secondary
| Measure | Time frame |
|---|---|
| incidence of complications;improvement in quality of life; | — |
Countries
China
Contacts
Shanghai Jiao Tong University, Shanghai Chest Hospital