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经导管主动脉瓣置换

科研文章

荐读文献

Balloon Aortic Valvuloplasty as a Bridge to Aortic Valve Replacement: A Contemporary Nationwide Perspective Transcatheter versus Surgical Aortic Valve Replacement in Patients with Prior Cardiac Surgery in the Randomized PARTNER 2A Trial Five-Year Outcomes of Transcatheter or Surgical Aortic-Valve Replacement Infective endocarditis after transcatheter aortic valve implantation: a nationwide study Infective Endocarditis After Transcatheter Aortic Valve Replacement Short Length of Stay After Elective Transfemoral Transcatheter Aortic Valve Replacement Is Not Associated With Increased Early or Late Readmission Risk Decline in Left Ventricular Ejection Fraction During Follow-Up in Patients With Severe Aortic Stenosis Long-term outcome of prosthesis-patient mismatch after transcatheter aortic valve replacement Delirium After TAVR: Crosspassing the Limit of Resilience Clinical impact of conduction disturbances in transcatheter aortic valve replacement recipients: a systematic review and meta-analysis

Original Research2020 Sep 1;41(33):3184-3197

JOURNAL:Eur Heart J . Article Link

Leaflet immobility and thrombosis in transcatheter aortic valve replacement

ACT Ng, DR Holmes, MJ Mack et al. Keywords: antiplatelet therapy; antithrombotic treatment; thrombosis; transcatheter aortic valve replacement; transcatheter heart valve

ABSTRACT

Transcatheter aortic valve replacement (TAVR) has grown exponentially worldwide in the last decade. Due to the higher bleeding risks associated with oral anticoagulation and in patients undergoing TAVR, antiplatelet therapy is currently considered first-line antithrombotic treatment after TAVR. Recent studies suggest that some patients can develop subclinical transcatheter heart valve (THV) thrombosis after the procedure, whereby thrombus forms on the leaflets that can be a precursor to leaflet dysfunction. Compared with echocardiography, multidetector computed tomography is more sensitive at detecting THV thrombosis. Transcatheter heart valve thrombosis can occur while on dual antiplatelet therapy with aspirin and thienopyridine but significantly less with anticoagulation. This review summarizes the incidence and diagnostic criteria for THV thrombosis and discusses the pathophysiological mechanisms that may lead to thrombus formation, its natural history, potential clinical implications and treatment for these patients.