Management of Conjunctival Injections in Patients on Apixaban
For patients with non-severe conjunctival injections while on apixaban, continue the anticoagulant medication and implement local bleeding control measures rather than suspending anticoagulation therapy. 1
Classification of Severity
- Non-severe conjunctival injections: Characterized by localized redness without significant vision impairment or intraocular pressure elevation 1
- Severe conjunctival injections: Associated with vision loss, pain, intraocular hemorrhage (vitreous, choroidal, or retinal), or elevated intraocular pressure 2, 3
Management Algorithm
For Non-Severe Conjunctival Injections:
- Continue apixaban therapy to avoid increasing thrombotic risk 1
- Implement first-line local treatments:
For Severe Conjunctival Injections with Intraocular Hemorrhage:
- Assess the severity of bleeding and impact on vision or intraocular pressure 2
- If life-threatening or occurring at a critical site (such as intraocular):
- Consult ophthalmology immediately for specialized evaluation and management 2
Important Considerations
- Point-of-care ultrasound may be valuable to identify associated vitreous hemorrhage in cases of severe eye bleeding 2
- The risk of intraocular hemorrhage has been reported with apixaban use, though less frequently than with other anticoagulants 3, 5
- Shared decision-making between the emergency physician, ophthalmologist, and patient regarding anticoagulation reversal is essential when severe eye bleeding occurs 2
- The half-life of apixaban is 6-15 hours in patients with normal renal function, which should be considered if temporary suspension is decided 1
Resumption of Apixaban After Suspension
- For low-risk procedures or after non-severe bleeding control, resume apixaban approximately 24 hours after bleeding is controlled 1
- For high-risk procedures or severe intraocular hemorrhage, consider resuming apixaban 48-72 hours after bleeding is controlled 1
- Evaluate the balance between thrombotic risk and re-bleeding risk before resuming anticoagulant therapy 1
Pitfalls and Caveats
- Avoid unnecessary discontinuation of apixaban for minor conjunctival injections as this increases thrombotic risk 4, 1
- Be aware that apixaban-associated ocular bleeding may be more difficult to control than spontaneous bleeding 5
- Consider that some topical ophthalmic anti-VEGF agents (bevacizumab, ranibizumab) used for corneal neovascularization may interact with systemic anticoagulation effects 6, 7
- Monitor for signs of increased intraocular pressure or vision changes that may indicate progression to more severe bleeding 2