When restarting anticoagulation after a DOAC in acute stroke with LVO and no hemorrhage, what is the recommended approach?

When restarting anticoagulation after a DOAC in acute stroke with LVO and no hemorrhage, what is the recommended approach?

• A. Restart anticoagulation only after safe time per imaging, guided by imaging findings.
• B. Restart immediately within 6 hours.
• C. Never restart DOAC.
• D. Restart after 2 weeks regardless of imaging.

Answer: (A)

The key idea is balancing bleeding risk with the risk of another stroke. After an acute ischemic stroke with large vessel occlusion in a patient already on a DOAC, and in the absence of hemorrhage, you reinitiate anticoagulation only when imaging shows it’s safe. This means follow-up imaging should confirm there is no hemorrhagic transformation and that the infarct size and imaging markers indicate a low enough bleeding risk. If imaging is reassuring, you resume the DOAC in a time frame guided by those imaging findings and the patient’s clinical status; if imaging suggests higher risk (for example, evidence of hemorrhagic transformation or a large infarct), you delay and reassess. Restarting within a few hours is usually too aggressive, and waiting a fixed period like two weeks regardless of imaging ignores individual bleeding risk. Not restarting at all would leave the patient unprotected against recurrent embolic events.

The key idea is balancing bleeding risk with the risk of another stroke. After an acute ischemic stroke with large vessel occlusion in a patient already on a DOAC, and in the absence of hemorrhage, you reinitiate anticoagulation only when imaging shows it’s safe. This means follow-up imaging should confirm there is no hemorrhagic transformation and that the infarct size and imaging markers indicate a low enough bleeding risk. If imaging is reassuring, you resume the DOAC in a time frame guided by those imaging findings and the patient’s clinical status; if imaging suggests higher risk (for example, evidence of hemorrhagic transformation or a large infarct), you delay and reassess. Restarting within a few hours is usually too aggressive, and waiting a fixed period like two weeks regardless of imaging ignores individual bleeding risk. Not restarting at all would leave the patient unprotected against recurrent embolic events.