Related Experiment Video
Updated: Mar 10, 2026
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
11.9K
Anticoagulation After Biological Aortic Valve Replacement: Is There An Optimal Regimen?
Tamer Owais1, Mina Rouman1, Martin Breuer1
1Department of Cardiac Surgery and Cardiology, Central Clinic of Bad Berka, Germany.
The Journal of Heart Valve Disease
|December 19, 2016
Summary
For biological aortic valve replacement (BAVR), aspirin showed lower bleeding risk and similar survival compared to warfarin. Aspirin is a safer alternative for early postoperative anticoagulation after BAVR.
Area of Science:
- Cardiology
- Cardiovascular Surgery
- Pharmacology
Background:
- Anticoagulation after biological heart valve replacement is debated due to thrombosis risks.
- Guidelines recommend warfarin post-biological aortic valve replacement (BAVR), but evidence is debated.
- Current guidelines lack clear risk-benefit data for early anticoagulation post-BAVR.
Purpose of the Study:
- To compare aspirin and warfarin efficacy in patients post-BAVR.
- To evaluate bleeding, ischemic events, and survival rates.
- To determine optimal anticoagulation strategy in the early postoperative phase.
Main Methods:
- 863 patients undergoing BAVR were randomized into two groups.
- One group received warfarin (n=430), the other aspirin (n=433) for three months.
- Primary endpoints included bleeding, cerebral ischemic events, and survival.
Main Results:
- Aspirin showed a statistically lower risk of postoperative bleeding.
- Cerebral ischemic events were comparable between groups in the short term.
- No significant differences in stroke-free or overall survival were observed.
Conclusions:
- Warfarin anticoagulation is statistically inferior to aspirin for bleeding risk post-BAVR.
- Aspirin demonstrates comparable efficacy and improved safety over warfarin.
- Platelet inhibition with aspirin is a potentially safer early anticoagulation strategy post-BAVR.
More Related Videos
Related Concept Videos
01:25Aortic Regurgitation III: Medical Management
528
Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
528
01:22Aneurysm IV: Nursing Management
561
Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...
561
01:29Venous Thrombosis III: Interprofessional Care
433
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...
433
01:30Anticoagulant Drugs: Low-Molecular-Weight Heparins
2.2K
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...
2.2K
01:15Aortic Regurgitation I: Introduction
1.0K
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
1.0K
01:26Aneurysm III: Interprofessional Care
422
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
422