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Visual loss following intranasal anesthetic injection
P J Savino1, R M Burde, R P Mills
1Neuro-Ophthalmology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania 19107.
Summary
Nasal surgery can lead to vision loss due to vasospasm. Submucosal anesthetic injections with epinephrine are suspected causes of these serious visual complications.
Area of Science:
- Ophthalmology
- Otorhinolaryngology
Background:
- Nasal surgeries carry potential risks.
- Ocular complications following nasal procedures are rare but significant.
Observation:
- Four patients experienced visual loss post-nasal surgery.
- Specific diagnoses included branch retinal artery occlusion, central retinal artery occlusion, anterior ischemic optic neuropathy, and posterior ischemic optic neuropathy.
Findings:
- The primary suspected mechanism for visual loss is vasospasm.
- High-pressure submucosal injection of local anesthetic containing epinephrine is implicated as the causative factor.
Implications:
- This highlights a critical risk associated with specific anesthetic techniques in nasal surgery.
- Ophthalmologists and ENTs should be aware of this potential iatrogenic complication.
- Further research into anesthetic protocols and vasospasm prevention is warranted.