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4 active trials for Left Atrial Appendage Occlusion

Left Atrial Appendage Electrical Isolation in Persistent Atrial Fibrillation

This project intends to enroll patients with persistent atrial fibrillation who are planning to undergo catheter ablation of atrial fibrillation. The two groups of patients were routinely performed atrial fibrillation pulmonary vein isolation and linear ablation with left atrial appendage occlusion. The experimental group received additional left atrial appendage electrical isolation before the left atrial appendage occlusion, and the control group did not perform left atrial appendage electrical isolation. We are intend to evaluate the safety and effectiveness of one-stop operation of left atrial appendage electrical isolation combined with left atrial appendage occlusion in the treatment of persistent atrial fibrillation.

Start: June 2021

Use of Intracardiac Echocardiography or Left Atrial Appendage Radiography to Guide Implantation of a Left Atrial Appendage Occlusion Device.

A total of 60 patients with atrial fibrillation were scheduled to receive left atrial appendage occlusion, which were divided into two groups. The operation was performed under the guidance of intracardiac echocardiography and left atrial appendage radiography, respectively (allocation ratio 1:1). During the operation, the total amount of contrast medium injected, the fluoroscopy time and the time from femoral vein puncture to transseptal puncture to closure were recorded in all patients. The diameter and depth of the left atrial appendage opening were measured by angiography in group A(ICE group), and measured by ICE in group B(radiography group). The size of the occluder device was selected according to the measurement size of the two groups, the occluder device success rate of the two groups was compared, and the relationship between measurement size and the size of the occluder device was obtained.

Start: June 2020

Use of Intracardiac Echocardiography or Left Atrial Appendage Radiography to Guide Implantation of a Left Atrial Appendage Occlusion Device

A total of 40 patients with atrial fibrillation were scheduled to receive left atrial appendage occlusion, which were divided into two groups. The operation was performed under the guidance of intracardiac echocardiography and left atrial appendage radiography, respectively (allocation ratio 1:1). During the operation, the total amount of contrast medium injected, the fluoroscopy time and the time from femoral vein puncture to transseptal puncture to closure were recorded in all patients. The diameter and depth of the left atrial appendage opening were measured by angiography in group A(ICE group), and measured by ICE in group B(radiography group). The size of the occluder device was selected according to the measurement size of the two groups, the occluder device success rate of the two groups was compared, and the relationship between measurement size and the size of the occluder device was obtained.

Start: June 2020

Efficacy of Different Anti-Thrombotic Strategies on Device-Related Thrombosis Prevention After Percutaneous Left Atrial Appendage Occlusion

Comparison among three different antithrombotic strategies after percutaneous LAA occlusion with a Watchman FLX LAAC device.

Start: August 2020