Outcome of left atrial appendage occlusion in high-risk patients
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
- Department of Cardiology, Benha University, Benha, Egypt.
- Liverpool Heart and Chest Hospital NHS Foundation Trust
- Department for Stroke, Gerontology and General Internal Medicine, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK.
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
OBJECTIVE: Percutaneous left atrial appendage (LAA) occlusion can be an interventional alternative to oral anticoagulation for stroke prevention in patients with atrial fibrillation.
METHODS: We delivered LAA occlusion therapy using a standardised approach to patient referral, multidisciplinary team assessment, implant criteria, imaging and follow-up. We analysed patient characteristics, efficacy and safety of the implant procedure, and 12-month outcomes.
RESULTS: Of 143 referrals from October 2014 to December 2016, 83 patients (age 76±8years, 32.5% female, mean CHAD2S2-VASc score 4 ±1) were offered LAA occlusion. Eighty (95.3%) had previous major bleeding (intracranial in 59%). LAA occluder implantation with an Amulet device was successful in 82 (98.8%), with periprocedural major adverse events occurring in 5 (6.0%) patients (2 device embolisations including 1 death, 2 major bleeds). Cardiac imaging in 75 (94%) patients 2months following implant showed device-related thrombus in 1 case (1.3%) and minor (<5mm) device leaks in 13 (17.1%). Over a median 12-month follow-up, 3 (3.8%) ischaemic strokes, 2 (2.5%) haemorrhagic strokes and 5 (6.3%) major extracranial bleeds occurred. All-cause mortality was 10%, with most deaths (7, 87.5%) due to non-cardiovascular causes.
CONCLUSIONS: LAA occlusion may be a reasonable option for stroke prevention inhigh-risk patients with atrial fibrillation ineligible for anticoagulation. However, procedural complication rates are not insignificant, and patients remain at risk of serious adverse events and death even after successful implant.
|Number of pages||6|
|Early online date||9 Nov 2018|
|Publication status||E-pub ahead of print - 9 Nov 2018|