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After left atrial appendage closure by WATCHMAN FLX to evaluate the time of endothelialization by CTA

After left atrial appendage closure by WATCHMAN FLX to evaluate the time of endothelialization by CTA

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400088369
Enrollment
Unknown
Registered
2024-08-16
Start date
2024-09-01
Completion date
Unknown
Last updated
2024-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

atrial fibrillation

Interventions

Watchman FLX LAAC group:WATCHMAN FLX LAAC procedure

Sponsors

Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 85 Years

Inclusion criteria

Inclusion criteria: (1) age is between 18 and 85; (2) patients with nonvalvular atrial fibrillation; (3) CHA2DS2-VASc score =2; (4) HAS-BLED score =3 or unwilling to take long-term oral anticoagulants; (5) patients with AF who successfully completed the WATCHMAN FLX LAAC procedure (no new pericardial effusion, tamponade, device migration during the procedure, and no new pericardial effusion affecting hemodynamics by echocardiography after the procedure); (6) able to understand the purpose of the study, voluntarily participate and sign informed consent, and willing to be followed up.

Exclusion criteria

Exclusion criteria: (1) mechanical prosthesis, evidence of thrombosis, complex atherosclerosis, or symptomatic carotid artery disease (e.g., after mechanical valve replacement; Bioprosthetic valve replacement or mitral valve repair within 3 months; Spontaneous or recurrent venous thromboembolism; Complex multivessel coronary artery disease or symptomatic carotid artery stenosis (transient ischemic attack, ischemic stroke) requiring long-term antiplatelet therapy); (2) contraindications to TEE examination; (3) platelet count < 60×10^9/L; (4) left ventricular ejection fraction (LVEF) < 35%; (5) Liver cirrhosis patients with severe renal failure, eGFR < 30 ml/min/1.73 m2 or Child Pugh B or C; (6) contraindications to any form of anticoagulant or antiplatelet therapy or drug allergy; (7) no residual shunt =3mm immediately after occlusion; (8) patients with acute coronary syndrome; (9) lesions or conditions that are at significant risk for major bleeding, such as current or recent gastrointestinal ulcers, presence of malignancy with a high risk of bleeding, recent brain or spinal injury, recent brain, spinal, or ophthalmic surgery, recent intracranial hemorrhage, known or suspected esophageal varices, arteriovenous malformations, Vascular aneurysms or major spinal or cerebral vascular malformations; (10) a history of drug or alcohol abuse; (11) pregnant, breastfeeding, or planning to become pregnant within one year; (12) The researchers judged that the patients had poor compliance and could not complete the study according to the requirements; Or other circumstances in which the investigator considers the subject to be unsuitable for the study. (13) The subject was planned to undergo LAAC combination with other cardiac procedure.

Design outcomes

Primary

MeasureTime frame
Incidence of complete endothelialization of the device;

Secondary

MeasureTime frame
Main incidence of clinical adverse events;Bleeding event;

Countries

China

Contacts

Public ContactZhang Jun Feng

Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine

jfzhang_dr@163.com+86 189 1779 7639

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026