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Permanent Percutaneous Carotid Artery Filter to Prevent Stroke in Atrial Fibrillation Patients: The CAPTURE Trial.

Abstract：

BACKGROUND:Patients with high stroke risk and atrial fibrillation who are unsuitable to oral anticoagulants (OACs) require other stroke prevention strategies. A novel permanent coil filter directly placed into both common carotid arteries (CCAs) was designed to capture emboli >1.4 mm in diameter. OBJECTIVES:The multicenter, nonrandomized, first-in-human clinical CAPTURE (Carotid Artery Implant for Trapping Upstream Emboli for Preventing Stroke in Atrial Fibrillation Patients) trial sought to determine the feasibility and safety of bilateral CCA filter placement. METHODS:Eligible patients had atrial fibrillation, CHA2DS2-VASc (Congestive heart failure, Hypertension, Age 75 years, Diabetes, Stroke/transient ischemic attack, Vascular disease, Age 65 to 74 years, Sex category) ≥2, OAC unsuitability, CCA size 4.8 to 9.8 mm, and no carotid stenosis >30%. Under ultrasound guidance, after direct transcutaneous carotid puncture with a 24-gauge needle, a motorized unit expels the filter to unfurl in the artery. Patients received aspirin/clopidogrel for 3 months, and aspirin thereafter. Primary endpoints were: 1) procedural success-bilateral, properly positioned CCA filters; and 2) 30-day incidence of major adverse events-death, stroke, major bleeding, filter migration, CCA thrombus, or stenosis. Carotid ultrasounds were conducted post-procedure, pre-discharge, at 1 week, and at 1, 3, 6, and 12 months. RESULTS:At 3 centers, 25 patients were enrolled: age 71 ± 9 years, CHA2DS2-VASc = 4.4 ± 1.0, prior embolism in 48%. Procedure success was 92% (23 of 25 patients); 1 patient had unilateral deployment. There were no device/procedure-related major adverse events; minor puncture site hematomas/edema occurred in 5 of 25 (20%). After 6-month mean follow-up, asymptomatic thrombi were detected in 4 patients (1 bilateral, 4 unilateral), adjudicated as captured (n = 3), unclassified (n = 2), or in situ (n = 0). In all patients, the thrombi dissolved with subcutaneous heparin. In 1 patient, 2 device/procedure-unrelated minor strokes occurred. CONCLUSIONS:Permanent carotid filter placement for stroke prophylaxis is technically feasible and safe. (Carotid Artery Implant for Trapping Upstream Emboli for Preventing Stroke in Atrial Fibrillation Patients [CAPTURE]; NCT03571789).

journal_name

J Am Coll Cardiol

journal_title

Journal of the American College of Cardiology

authors

Reddy VY,Neuzil P,de Potter T,van der Heyden J,Tromp SC,Rensing B,Jiresova E,Dujka L,Lekesova V

doi

10.1016/j.jacc.2019.04.035

subject

Has Abstract

pub_date

2019-08-20 00:00:00

pages

829-839

issue

eissn

0735-1097

issn

1558-3597

pii

S0735-1097(19)35006-5

journal_volume

pub_type

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Permanent Percutaneous Carotid Artery Filter to Prevent Stroke in Atrial Fibrillation Patients: The CAPTURE Trial.