Postprocedural Management: Anticoagulation and Beyond

Area of Science:

• Cardiology
• Vascular Surgery

Background:

• Left atrial appendage exclusion is a strategy to mitigate stroke risk in nonvalvular atrial fibrillation.
• Closure devices are exposed to blood flow during endothelialization, potentially activating coagulation and leading to device-related thrombus.

Purpose of the Study:

• To evaluate the risks and benefits of antithrombotic treatment following left atrial appendage closure.
• To explore alternative antithrombotic strategies for patients with contraindications to standard anticoagulation.

Main Methods:

• Review of existing literature on left atrial appendage closure devices and antithrombotic therapies.
• Analysis of patient/procedural characteristics influencing thromboembolic and bleeding risks.

Main Results:

• Device-related thrombus is a potential complication requiring antithrombotic treatment.
• Standard antithrombotic protocols may not be suitable for all patients, particularly those with anticoagulation contraindications.
• Less intensive antithrombotic regimens show promise but require further investigation.

Conclusions:

• A personalized antithrombotic treatment approach, balancing bleeding and thromboembolic risks, is likely optimal for patients undergoing left atrial appendage closure.
• Further research is needed to define the best antithrombotic strategies for diverse patient populations.