Apixaban and multiple extractions: bleeding versus stroke risk
A 71-year-old retired civil servant requires extraction of the upper right first premolar and the lower left second molar. He has atrial fibrillation and takes apixaban 5 mg twice daily; his last dose was this morning. His CHA2DS2-VASc score is 4 and HAS-BLED score is 2. Recent renal function: eGFR 58 mL/min/1.73 m² and creatinine 112 µmol/L. INR is 1.1, measured at a health check. He also takes amlodipine and atorvastatin. Five years ago he had an extraction while taking warfarin and needed a suture for oozing. He is anxious about stopping the anticoagulant because his brother had a stroke. Both teeth are periodontally involved and grade II mobile. The clinic has tranexamic acid mouthwash, sutures, and haemostatic gauze.
1. Decide whether to interrupt apixaban and justify your decision.
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For simple extractions, current guidance generally supports continuing apixaban rather than interrupting it, because the stroke risk is real and the bleeding risk from a single or two-tooth extraction is usually manageable with local measures. His CHA2DS2-VASc score of 4 means a substantial annual stroke risk, and bridging with heparin is not recommended for apixaban. However, his previous oozing after warfarin and two extractions increase the bleeding risk.
A reasonable plan is to continue apixaban, schedule the appointment early in the day, avoid the morning dose only if the local protocol and cardiologist agree, and use local haemostatic measures. Do not stop apixaban without discussing with the prescriber. If the extractions are judged to be more than minor, or if he has additional bleeding risk, liaise with cardiology. Check that he is not also taking antiplatelets or NSAIDs. Document the decision and the reasoning.
2. Describe your local haemostatic plan and choice of analgesia.
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Use a minimally traumatic technique with effective local anaesthesia. After extraction, place a haemostatic agent such as oxidized cellulose or gelatin sponge if needed, suture the socket, and apply pressure with gauze for 20–30 minutes. Prescribe tranexamic acid 4.8% mouthwash, 10 mL four times daily for 2–5 days, starting after 24 hours, and advise not to rinse or spit on the first day.
For pain, paracetamol is first-line; avoid ibuprofen and aspirin because of bleeding risk and interaction with apixaban. If stronger analgesia is needed, use paracetamol with codeine and monitor for constipation. Avoid intramuscular injections. Check for signs of bleeding at review and give written instructions. If oozing persists, apply pressure, suture, and consider referral. Do not prescribe antibiotics routinely.
3. What findings would make you delay the procedure or refer the patient?
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Delay or refer if he has a history of abnormal bleeding, thrombocytopenia, or another coagulopathy; if renal function is worse than expected because apixaban is renally cleared; if he has had a recent stroke or transient ischaemic attack; or if the extraction is likely to be surgical and extensive. Refer if there is uncontrolled hypertension, because that increases bleeding.
Also refer if local measures fail to control bleeding, if he develops signs of infection, or if the teeth are not straightforward to remove. If his cardiologist advises interruption, follow a written plan and do not improvise. Because he is anxious, explain the stroke risk and the local measures; do not stop the drug simply because he is worried. Document the discussion and ensure he knows whom to contact if bleeding occurs.