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Initiation and development of a percutaneous left atrial appendage closure programme: A French centre’s experience and literature review

By Published On: 06/03/2023

Archives of Cardiovascular Diseases | Article du mois – Mars 2023

Emeric Albert, Tania Puscas, Gabriel Seret, Noémie Tence, Denis Amet, Emilie Varlet, Dorra Raboudi M’Barek, Fabien Picarda, Akli Otmani, Laurent Sabbah, Julien Le Guen, Eric Bodiguel, Valerie Domigo, Gilles Soulat, Christian Spaulding, Eloi Marijon

Summary

Background

Percutaneous left atrial appendage closure may be considered in selected patients with atrial fibrillation at significant risk of both thromboembolism and haemorrhage.

Aims

To report the experience of a tertiary French centre in percutaneous left atrial appendage closure and to discuss the outcomes compared with previously published series.

Methods

This was a retrospective observational cohort study of all patients referred for percutaneous left atrial appendage closure between 2014 and 2020. Patient characteristics, procedural management and outcomes were reported, and the incidence of thromboembolic and bleeding events during follow-up were compared with historical incidence rates.

Results

Overall, 207 patients had left atrial appendage closure (mean age 75.3 ± 8.6 years; 68% men; CHA2DS2-VASc score 4.8 ± 1.5 ; HAS-BLED score 3.3 ± 1.1), with a 97.6% (n = 202) success rate. Twenty (9.7%) patients had at least one significant periprocedural complication, including six (2.9%) tamponades and three (1.4%) thromboembolisms. Periprocedural complication rates decreased from earlier to more recent periods (from 13% before 2018 to 5.9% after; P = 0.07). During a mean follow-up of 23.1 ± 20.2 months, 11 thromboembolic events were observed (2.8% per patient-year), a 72% risk reduction compared with the estimated theoretical annual risk. Conversely, 21 (10%) patients experienced bleeding during follow-up, with almost half of the events occurring during the first 3 months. After the first 3 months, the risk of major bleeding was 4.0% per patient-year, a 31% risk reduction compared with the expected estimated risk.

Conclusions

This real-world evaluation emphasizes the feasibility and benefit of left atrial appendage closure, but also illustrates the need for multidisciplinary expertise to initiate and develop this activity.

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