Related Experiment Video
Updated: Aug 6, 2026
28:13
Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Twenty-two years without anticoagulation with metallic heart valve
Ali Yildiz1, Firat Ozcan, Mehmet Dogan
1Yüksek Ihtisas Hospital, Department of Cardiology, Ankara, Turkey.
Journal of the National Medical Association
|August 19, 2006
Summary
Anticoagulation is crucial for mechanical heart valves to prevent clots. This case study highlights a rare long-term survival with a metallic aortic valve without anticoagulation, challenging current guidelines.
Area of Science:
- Cardiology
- Biomedical Engineering
- Clinical Medicine
Background:
- Mechanical heart valves (MHVs) require lifelong anticoagulation to prevent thromboembolic events.
- Valve thrombosis and systemic embolism are life-threatening complications associated with MHVs.
Observation:
- This report details the third longest survival case of a patient with a metallic aortic valve managed without anticoagulation.
- The patient experienced a long-term survival duration despite the absence of anticoagulant therapy.
Findings:
- The case challenges the absolute necessity of anticoagulation in all patients with metallic aortic valves.
- Review of existing literature supports the critical role of anticoagulation in preventing complications.
Implications:
- Further research is warranted to identify patient subgroups who may not require anticoagulation.
- Clinical practice guidelines for MHV management may need re-evaluation based on such exceptional cases.
Related Concept Videos
01:29Venous Thrombosis III: Interprofessional Care
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
01:26Mitral Stenosis III: Medical Management
Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
01:30Anticoagulant Drugs: Low-Molecular-Weight Heparins
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
01:21Rheumatic Heart Disease III: Medical Management
Rheumatic heart disease (RHD) management can be divided into two main strategies: prevention and long-term management.Primary PreventionPrimary prevention focuses on timely diagnosis and management of group A streptococcal pharyngitis to prevent acute rheumatic fever. The most widely used antibiotic for treating this condition is intramuscular benzathine penicillin G.Acute Rheumatic Fever TreatmentThe primary treatment goal for a patient diagnosed with acute rheumatic fever is to suppress the...