Hemostasis of Left Atrial Appendage Bleed With Lariat Device

A Semi-Automated Algorithm for Segmentation of the Left Atrial Appendage Landing Zone: Application in Left Atrial Appendage Occlusion Procedures

Background: Mechanical occlusion of the Left atrial appendage (LAA) using a purpose-built device has emerged as an effective prophylactic treatment in patients with atrial fibrillation at risk of stroke and a contraindication for anticoagulation. A crucial step in procedural planning is the choice of the device size. This is currently based on the manual analysis of the “Device Landing Zone” fr...

Left atrial thrombus after appendage closure using LARIAT.

The left atrial appendage (LAA) is the source of thromboembolism in the vast majority of patients with atrial fibrillation and stroke. As a consequence, a newer paradigm of targeting the LAA has evolved, including the use of several percutaneous techniques, including the LARIAT snare device (SentreHEART). This minimally invasive strategy involves pericardial suture ligation of the LAA base usin...

Anatomic analysis of the left atrial appendage after closure with the LARIAT device.

Percutaneous Left Atrial Appendage Suture Ligation Using the LARIAT Device in Patients With Atrial Fibrillation

Methods Eighty-nine patients with atrial fibrillation were enrolled to undergo percutaneous ligation of the LAA with the LARIAT device. The catheter-based LARIAT device consists of a snare with a pre-tied suture that is guided epicardially over the LAA. LAA closure was confirmed with transesophageal echocardiography (TEE) and contrast fluoroscopy immediately, then with TEE at 1 day, 30 days, 90...

Left Atrial Appendage Tachycardia Termination With A LARIAT Suture Ligation.

Left atrial appendage (LAA) is a known trigger for left atrial tachycardia (AT). The use of LARIAT epicardial suture for termination of AT arising from LAA is not yet reported. A 66-year-old female had a history of hypertension, diabetes, sick sinus syndrome, labile INR, and symptomatic persistent AF. She underwent radiofrequency ablation after failed cardioversion and multiple antiarrhythmics....