Antithrombotic management in left sided- ablation and appendage device-closure procedures

Area of Science:

• Cardiology
• Vascular Medicine
• Interventional Cardiology

Background:

• Atrial fibrillation is a common arrhythmia requiring stroke prevention.
• Minimally invasive procedures like catheter ablation and left atrial appendage closure present thrombotic risks.
• The left atrial environment is prothrombotic due to structural changes and procedural factors.

Purpose of the Study:

• To review current antithrombotic strategies for left-sided cardiac interventions.
• To highlight the balance between thromboembolic prevention and bleeding risk.
• To discuss individualized post-procedural antithrombotic therapy.

Main Methods:

• Review of current evidence on antithrombotic strategies.
• Emphasis on pre-procedural imaging (transesophageal echocardiography, cardiac computed tomography) for risk stratification.
• Discussion of direct oral anticoagulants versus vitamin K antagonists.

Main Results:

• Left atrial appendage closure and catheter ablation require careful antithrombotic management.
• Pre-procedural imaging is essential for thrombus detection and risk assessment.
• Direct oral anticoagulants offer advantages for periprocedural management due to their pharmacokinetic profiles.

Conclusions:

• Antithrombotic therapy must be tailored to individual patient stroke risk, procedural findings, and patient characteristics.
• Optimizing antithrombotic strategies is key to improving outcomes after left-sided cardiac interventions.
• Further research may refine periprocedural and post-procedural antithrombotic regimens.