NCT07129564 Stepwise Strategy for Treatment of Atrialfibrillation Substrate Study

Trial Parameters

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Brief Summary

Electrical/pharmacological cardioversion improves structural remodeling of left atrium. We hypothesized that radiofrequency ablation surgery for atrial fibrillation has a higher success rate and a lower recurrence rate of atrial fibrillation in patients with improved atrial stroma. This study is a multicenter, prospective, observational study conducted in China to evaluate whether sacubitril/valsartan can reduce atrial fibrillation recurrence rates, improve cardiac structure and function, and analyze the factors influencing the maintenance rate of sinus rhythm after atrial fibrillation ablation.

Eligibility Criteria

Inclusion Criteria: Aged 18-80 years, with persistent atrial fibrillation complicated by left atrial enlargement (left atrial anteroposterior diameter 40-50mm); Having the willingness to undergo atrial fibrillation cardioversion and planned to receive amiodarone for pharmacological cardioversion; Having signed a written informed consent form for participation in the study; Not concurrently participating in any other interventional studies. Exclusion Criteria: Females who are pregnant, lactating, or planning to have children within the next 2 years; Patients whose arrhythmia fails to convert to sinus rhythm with medication and who refuse electrical cardioversion; Patients whose arrhythmia cannot be converted to sinus rhythm with either medication or electrical cardioversion; Glomerular filtration rate (eGFR) \< 30 ml/min/1.73m² (calculated by the CKD-EPI formula); Patients with biliary cirrhosis or cholestasis; Hyperthyroidism; A history of bradycardia (heart rate \< 50 beats/min) or at

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