About this trial
Percutaneous left atrial appendage closure (LAAC) is an effective strategy for stroke prevention in patients with non-valvular atrial fibrillation (NVAF). Standard procedure requires general anesthesia, transesophageal echocardiography (TEE) guidance. With the experience accumulation, LAAC can be successfully completed in many centers under local anesthesia, the guidance of X-ray and transthoracic echocardiography (TTE), also known as minimalist procedure. Our center was one of the earliest to carry out minimalist procedure worldwide. At present, expert consensus suggests that minimalist procedure is feasible in experienced centers, but the relevant evidence is insufficient. Some single-arm studies have shown that minimalist procedure is safe and effective. However, there is currently a lack of direct evidence to compare the strengths and weaknesses of these two LAAC procedures. The goal of the study was to compare the effectiveness and safety of minimalist procedure and standard procedure for LAAC in patients with NVAF.
Eligibility criteria
Qualifiers
Age 18 - 85 years old, all genders;
Subjects who can understand the purpose of the trial, participate voluntarily and sign the informed consent form, and are willing to complete the follow-up according to the protocol requirements;
Indications for left atrial appendage closure: non-valvular atrial fibrillation patients with CHA2DS2-VAS2 score ≥2 and HAS-BLED score ≥3, or who are unable or unwilling to receive long-term oral anticoagulants;
Life expectancy ≥1 year;
Disqualifiers
Preoperative TEE/heart CT/intracardiac ultrasound suggested thrombus in the left atrial appendage/left atrium;
Patients with severe renal insufficiency (creatinine ≥200 μmol/L, creatinine clearance <30 ml/min);
Liver disease patients with coagulation abnormalities and clinically relevant bleeding risks, including liver cirrhosis patients reaching Child Pugh stages B and C;
Severely decreased platelet count at baseline: PLT ≤50*10^9/L;
Trial design
Treatments tested in this trial
- Minimalism Transcatheter LAAC Group
- Standard Transcatheter LAAC Group