Preoperative management for patients receiving anticoagulants

Front

What is the primary anticoagulant that requires bridging with low-molecular-weight heparin (LMWH) in high-risk surgical patients?

Back

Warfarin

Front

How many days before surgery should warfarin typically be stopped for temporary discontinuation?

Back

5 days

Front

When should bridging with LMWH be initiated for a patient with a mechanical heart valve on warfarin after surgery?

Back

48-72 hours postoperatively

Front

What renal function test should be assessed before stopping dabigatran preoperatively?

Back

Creatinine clearance

Front

What is the preferred method for reversing anticoagulation in a patient on warfarin requiring urgent surgery?

Back

Prothrombin complex concentrate (PCC) + Vitamin K

Front

What is the role of low-molecular-weight heparin (LMWH) in the management of patients on anticoagulants undergoing surgery?

Back

LMWH is used for bridging therapy to prevent thromboembolic events during the perioperative period.

Front

What is the mechanism of action of warfarin?

Back

Warfarin inhibits vitamin K epoxide reductase, reducing the synthesis of vitamin K-dependent clotting factors.

Front

What are the common indications for anticoagulation therapy?

Back

Atrial fibrillation, venous thromboembolism, and mechanical heart valves.

Front

What is the significance of INR in patients on warfarin?

Back

INR (International Normalized Ratio) is used to monitor the anticoagulation effect of warfarin and guide dosage adjustments.

Front

What are the potential complications of anticoagulation therapy?

Back

Bleeding, thrombosis, and drug interactions.