Venous Thromboembolism Prophylaxis in Patients Receiving Dual Antiplatelet Therapy
Dual antiplatelet therapy (DAPT) does not provide adequate venous thromboembolism (VTE) prophylaxis. Pharmacologic DVT prophylaxis is used only when the VTE risk outweighs the bleeding risk in the peri-procedural setting. [1]
Medication Role of DAPT
Antiplatelet agents are recommended for cardiovascular thrombotic prevention. Antiplatelet agents have limited value for VTE prophylaxis during the perioperative period. [1]
Risk-Balanced Prophylaxis Decision Framework
DVT/VTE prophylaxis should be selected by comparing VTE risk against bleeding risk when antiplatelet therapy is continued. If VTE risk outweighs bleeding risk in a patient receiving chronic antiplatelet therapy, pharmacologic VTE prophylaxis is suggested (grade 2C). [1]
Choice of Prophylaxis When Both Anticoagulant and DAPT Are Considered
If bleeding risk from combining an anticoagulant with antiplatelet therapy outweighs VTE risk, mechanical thromboprophylaxis is suggested over anticoagulant prophylaxis. Antiplatelet therapy should not be discontinued in this scenario. [1]
Perioperative Management Priorities With Dual Antiplatelet Therapy
In patients treated with dual antiplatelet therapy undergoing a procedure associated with high VTE risk, resuming both antiplatelet agents shortly after the procedure should be prioritized over pharmacologic VTE prevention (grade 2C). [1]
Timing and Neuraxial Anesthesia Considerations
In patients in whom neuraxial anesthesia is planned, a higher rate of complications is expected if pharmacologic thromboprophylaxis is administered concurrently. Postoperative initiation of thromboprophylaxis is suggested (grade 2C). [1]
Net Clinical Role Statement
DAPT is continued for its antiplatelet indication, while DVT prophylaxis decisions are determined primarily by procedure-related VTE risk and bleeding risk. Pharmacologic VTE prophylaxis is used when VTE risk outweighs bleeding risk. Mechanical prophylaxis is used when bleeding risk outweighs VTE risk. [1]