Here’s Dr. Youn with today’s Morning Report!
Lateral Canthotomy/Cantholysis
Emergent concern: retinal ischemia, optic nerve compression
Indications: Acute orbital compartment syndrome – usually 2/2 traumatic retrobulbar hemorrhage
Decreased visual acuity
IOP > 40 mmHg (normal range: 10-20)
Proptosis
APD
Contraindication: Globe rupture (teardrop pupil, positive Seidel test, enophthalmos, visible globe laceration, visible FB in eye)
Procedure:
- Stat ophthalmology consult
- Irrigate area with saline or sterile water – avoid betadine in eye
- Local anesthetic to lateral canthus – 1cc of 1-2% lidocaine with epi
- Apply hemostat to lateral canthus for 1-2 min to crush structures and decrease bleeding
- Cut laterally from lateral canthus to orbital rim – approx. 1cm
- Use forceps to retract lower lid down infero-laterally to expose inferior crus of lateral canthal ligament
- Cut inferior crus full thickness to orbital rim – lower eyelid should hang loosely
- Recheck IOP
- If still elevated, consider releasing superior crus of lateral canthal ligament.
- Discuss further medical management with ophtho if IOP still elevated – acetazolamide, topical beta blockers, mannitol, elevate HOB
- Definitive – ophthalmologic decompression
Jay Khadpe MD
- Editor in Chief of "The Original Kings of County"
- Assistant Professor of Emergency Medicine
- Assistant Residency Director
- SUNY Downstate / Kings County Hospital
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