Cerebral Embolic Protection in Patients Undergoing Left Atrial Appendage Closure

(1) Background: Cerebral magnetic resonance imaging has reported new cerebral ischemic lesions after left atrial appendage (LAA) closure in about one- third of patients. Stroke occurs predominantly periprocedurally. This study evaluated the characteristics of embolized debris captured by the SENTINE...

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Main Authors: Julia Seeger, Philipp Seppelt, Mario Iturbe-Orbe, David Leistner, Jochen Wöhrle, Michael Joner
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Journal of Cardiovascular Development and Disease
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Online Access:https://www.mdpi.com/2308-3425/12/1/5
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author Julia Seeger
Philipp Seppelt
Mario Iturbe-Orbe
David Leistner
Jochen Wöhrle
Michael Joner
author_facet Julia Seeger
Philipp Seppelt
Mario Iturbe-Orbe
David Leistner
Jochen Wöhrle
Michael Joner
author_sort Julia Seeger
collection DOAJ
description (1) Background: Cerebral magnetic resonance imaging has reported new cerebral ischemic lesions after left atrial appendage (LAA) closure in about one- third of patients. Stroke occurs predominantly periprocedurally. This study evaluated the characteristics of embolized debris captured by the SENTINEL<sup>TM</sup> cerebral embolic protection system in patients undergoing LAA closure; (2) Methods: Sixty filters of 30 consecutive patients undergoing LAA closure with the WATCHMAN FLX<sup>TM</sup> device were collected and captured debris was analyzed by histopathology and histomorphometry. Clinical outcome measures were disabling and non-disabling stroke within 72 h; (3) Results: In most filters, no material was captured. The predominant captured debris was acute or organized thrombi. The most common pattern was acute fibrin-rich thrombus, which was detected in 11/30 (33.3%) patients. Particles of heart tissue were seen in 6/30 (20%) patients, and foreign material was seen in one (3.3%) patient. The number of particles ranged from 0 to 52 per patient with a maximum of 31 in the distal and 21 in the proximal filter. Particle diameter ranged from 131 to 2614 µm. By logistic regression analysis, only protected time remained a multivariable predictor for larger particles (<i>p</i> = 0.039). There was no disabling or non-disabling stroke. Compared to transfemoral aortic valve replacement, the number of particles is only about 1.5%. (4) Conclusion: LAA occlusion with the WATCHMAN FLX<sup>TM</sup> was associated with a very low number of embolized particles captured with the double-filter SENTINEL<sup>TM</sup> embolic protection system and no periprocedural stroke.
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spelling doaj-art-a73235b2e1d3457b82860c95db4d07a62025-01-24T13:35:56ZengMDPI AGJournal of Cardiovascular Development and Disease2308-34252024-12-01121510.3390/jcdd12010005Cerebral Embolic Protection in Patients Undergoing Left Atrial Appendage ClosureJulia Seeger0Philipp Seppelt1Mario Iturbe-Orbe2David Leistner3Jochen Wöhrle4Michael Joner5Department of Cardiology and Intensive Care, Medical Campus Lake Constance, 88048 Friedrichshafen, GermanyUniversitäres Herz- und Gefäßzentrum, Goethe University Frankfurt, 60590 Frankfurt am Main, GermanyDepartment of Cardiology and Intensive Care, Medical Campus Lake Constance, 88048 Friedrichshafen, GermanyUniversitäres Herz- und Gefäßzentrum, Goethe University Frankfurt, 60590 Frankfurt am Main, GermanyUniversity of Ulm, 89081 Ulm, GermanyGerman Heart Centre Munich, 80636 Munich, Germany(1) Background: Cerebral magnetic resonance imaging has reported new cerebral ischemic lesions after left atrial appendage (LAA) closure in about one- third of patients. Stroke occurs predominantly periprocedurally. This study evaluated the characteristics of embolized debris captured by the SENTINEL<sup>TM</sup> cerebral embolic protection system in patients undergoing LAA closure; (2) Methods: Sixty filters of 30 consecutive patients undergoing LAA closure with the WATCHMAN FLX<sup>TM</sup> device were collected and captured debris was analyzed by histopathology and histomorphometry. Clinical outcome measures were disabling and non-disabling stroke within 72 h; (3) Results: In most filters, no material was captured. The predominant captured debris was acute or organized thrombi. The most common pattern was acute fibrin-rich thrombus, which was detected in 11/30 (33.3%) patients. Particles of heart tissue were seen in 6/30 (20%) patients, and foreign material was seen in one (3.3%) patient. The number of particles ranged from 0 to 52 per patient with a maximum of 31 in the distal and 21 in the proximal filter. Particle diameter ranged from 131 to 2614 µm. By logistic regression analysis, only protected time remained a multivariable predictor for larger particles (<i>p</i> = 0.039). There was no disabling or non-disabling stroke. Compared to transfemoral aortic valve replacement, the number of particles is only about 1.5%. (4) Conclusion: LAA occlusion with the WATCHMAN FLX<sup>TM</sup> was associated with a very low number of embolized particles captured with the double-filter SENTINEL<sup>TM</sup> embolic protection system and no periprocedural stroke.https://www.mdpi.com/2308-3425/12/1/5cerebral embolic protectionstrokedebrisleft atrial appendage occluderWATCHMAN FLXSENTINEL
spellingShingle Julia Seeger
Philipp Seppelt
Mario Iturbe-Orbe
David Leistner
Jochen Wöhrle
Michael Joner
Cerebral Embolic Protection in Patients Undergoing Left Atrial Appendage Closure
Journal of Cardiovascular Development and Disease
cerebral embolic protection
stroke
debris
left atrial appendage occluder
WATCHMAN FLX
SENTINEL
title Cerebral Embolic Protection in Patients Undergoing Left Atrial Appendage Closure
title_full Cerebral Embolic Protection in Patients Undergoing Left Atrial Appendage Closure
title_fullStr Cerebral Embolic Protection in Patients Undergoing Left Atrial Appendage Closure
title_full_unstemmed Cerebral Embolic Protection in Patients Undergoing Left Atrial Appendage Closure
title_short Cerebral Embolic Protection in Patients Undergoing Left Atrial Appendage Closure
title_sort cerebral embolic protection in patients undergoing left atrial appendage closure
topic cerebral embolic protection
stroke
debris
left atrial appendage occluder
WATCHMAN FLX
SENTINEL
url https://www.mdpi.com/2308-3425/12/1/5
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