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Ophthalmic Complications Associated with Direct Oral Anticoagulant Medications
Wen-Shi Shieh1, Jayanth Sridhar1, Bryan K Hong1
1a Mid Atlantic Retina, The Retina Service of Wills Eye Hospital , Philadelphia , PA , USA.
Insights
Direct oral anticoagulants (DOACs) can cause serious eye bleeding. Ophthalmologists must recognize these risks and consult on stopping DOACs to manage ocular complications.
Area of Science:
- Ophthalmology
- Hematology
Background:
- Direct oral anticoagulants (DOACs) are increasingly prescribed for thromboprophylaxis.
- Ocular complications from DOACs are rare but can be sight-threatening.
Observation:
- Six patients on DOACs presented with unusual ocular bleeding events over one year.
- Bleeding manifestations included submacular hemorrhage, vitreous hemorrhage, and hyphema.
- Visual acuity varied significantly, with some requiring surgical intervention.
Findings:
- Apixaban, dabigatran, and rivaroxaban were implicated in these ocular hemorrhages.
- Three patients underwent pars plana vitrectomy for vitreous hemorrhage.
- Two patients permanently discontinued their DOAC therapy.
Implications:
- Ophthalmologists must consider DOACs in patients presenting with ocular hemorrhage.
- Consultation with primary care providers is crucial for managing DOAC cessation.
- Awareness of DOAC-associated bleeding can guide timely diagnosis and treatment.
Objective:
To describe the clinical features and management of six patients with ocular complications associated with direct oral anticoagulants (DOACs).
Methods:
The medical records of all adult patients known to be taking a DOAC and with an unusual bleeding event at a large tertiary referral center over a one-year period were reviewed. Patients with less than one-month follow-up were excluded. Data collection included relevant clinic notes, operative reports, surgical videos, and clinical images (fundus photography, optical coherence tomography, B-scan ultrasonography, and fluorescein angiography).
Results:
Six eyes in six patients were identified with an unusual bleeding event associated with DOAC use. One patient was taking apixaban, two patients were taking dabigatran, and three patients were taking rivaroxaban. Two patients had large submacular hemorrhage (including one with vitreous hemorrhage breakthrough), three patients had vitreous hemorrhage, and one patient had recurrent hyphema. Presenting visual acuity ranged from 20/40 to light perception. Three individuals required therapeutic and/or diagnostic pars plana vitrectomy for vitreous hemorrhage. Final visual acuity ranged from 20/25 to count finger vision. The associated DOAC was permanently discontinued in two of the six cases. Follow-up was one to four months from onset of identified DOAC-related complication.
Conclusions:
DOAC use may be associated with ocular bleeding. Ophthalmologists should be aware of potential hemorrhagic complications and obtain consultation with primary providers regarding DOAC cessation guidelines.
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