Overview
Native aortic valve thrombosis is a rare condition characterized by clot formation on the aortic valve, often presenting with acute cardiovascular symptoms such as myocardial infarction and frequently associated with hypercoagulable states 1.Diagnosis
Clinical Presentation: Commonly presents with myocardial infarction (36%) 1.
Diagnostic Imaging: Echocardiography is crucial for visualization of thrombus 1.
Additional Tests: Doppler ultrasound and CT angiography can confirm thrombosis and extent 12.
Etiology Assessment: Evaluate for hypercoagulable states through laboratory tests (e.g., coagulation profiles) 1.Management
Revascularization: Immediate surgical intervention (e.g., thrombo-endoarterectomy) for acute cases 2.
Anticoagulation: Initiate anticoagulation therapy post-operatively, considering specific agents based on underlying hypercoagulability 1.
Cardiac Support: Manage complications with appropriate cardiac support measures 1.Special Populations
Elderly: Higher risk due to increased prevalence of comorbidities and hypercoagulable states 1.
Comorbidities: Patients with atrial fibrillation or other hypercoagulable conditions require vigilant monitoring and management 12.Key Recommendations
Prompt Imaging and Diagnosis: Utilize echocardiography and imaging modalities to confirm aortic valve thrombosis (Evidence: Moderate) 12.
Surgical Intervention for Acute Cases: Consider immediate surgical revascularization for acute thrombosis to prevent fatal outcomes (Evidence: Weak) 2.
Anticoagulation Therapy: Initiate appropriate anticoagulation post-surgery based on underlying causes (Evidence: Expert opinion) 1.References
1 Alajaji W, Hornick JM, Malek E, Klein AL. The Characteristics and Outcomes of Native Aortic Valve Thrombosis: A Systematic Review. Journal of the American College of Cardiology 2021. link
2 Riccioni G, Bucciarelli V, Bisceglia N, Totaro G, Scotti L, Aceto A et al.. Acute abdominal aortic thrombosis caused by paroxysmal atrial fibrillation. Journal of biological regulators and homeostatic agents 2013. link