Anticoagulated Patient Needing Extraction
A 68-year-old man attends for removal of an irreparably fractured upper right first molar (UR6). His medical history includes atrial fibrillation, for which he takes apixaban 5 mg twice daily, and hypertension controlled with amlodipine. His most recent eGFR is 62 mL/min/1.73 m² and he weighs 78 kg. He reports no previous bleeding complications after a dental extraction five years ago, though he was on warfarin at that time. His INR today is not available. He has taken his morning apixaban dose. The tooth is grade II mobile with a fractured palatal cusp and a radiographically visible periapical radiolucency; bleeding on probing is present. He is anxious and asks whether he should stop his tablets for a few days before the extraction.
1. Should the patient stop apixaban before this extraction? Justify your decision with reference to his renal function and the planned procedure.
Read the worked answer
No - apixaban should not be stopped for a single, straightforward extraction.
Reasoning:
- Apixaban has a short half-life (~12 h) and the bleeding risk for routine extractions in patients on direct oral anticoagulants is low; guidelines support continuing the DOAC and using local haemostatic measures.
- Stopping would expose him to thromboembolic risk from AF (stroke) with no meaningful reduction in post-extraction bleeding.
- His eGFR of 62 mL/min/1.73 m² means apixaban clearance is only mildly reduced - no dose adjustment is triggered by this alone, and there is no accumulation concern that would justify interruption.
- The procedure is a single extraction, not multiple surgical sites, so it falls into the lower-risk category where continuation is standard.
Practical points:
- Time the appointment so the extraction occurs 2–3 hours after his morning dose (or at trough if BD dosing permits), giving peak effect time to pass.
- Confirm he has not taken additional NSAIDs and has no other bleeding risk factors (e.g. dual antiplatelet therapy).
- Document the decision and the advice given.
2. Outline the local haemostatic plan you would use if bleeding persists after the extraction, and state when you would escalate.
Read the worked answer
Stepwise local measures:
- Pressure - firm gauze pack bitten for 20 minutes; inspect before assuming failure.
- Sutures - place a figure-of-eight or interrupted suture to approximate soft tissue and hold a haemostatic agent.
- Haemostatic agents - oxidised cellulose, collagen sponge, or a fibrin sealant packed into the socket; consider tranexamic acid 4.8% mouthwash (10 mL four times daily for 2–5 days) as an adjunct.
- Reassess after 20–30 minutes of sustained pressure.
Escalation triggers:
- Bleeding not controlled after two cycles of pressure plus a haemostatic agent and suture.
- Signs of haemodynamic compromise (dizziness, pallor, tachycardia).
- Expanding haematoma or airway concern.
Escalation route: refer to oral and maxillofacial surgery or the local emergency department; contact the patient's anticoagulation team if reversal is being considered - this is rarely needed for a single extraction and should not be done without specialist input.