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Systemic reactions following intraocular acetylcholine instillation
Summary
Intraocular acetylcholine chloride can cause severe systemic reactions like bradycardia and hypotension during cataract surgery. Ophthalmic surgeons should monitor vital signs closely and be prepared for adverse events.
Area of Science:
- Ophthalmology
- Pharmacology
- Cardiology
Background:
- Cataract extraction is a common ophthalmic surgical procedure.
- Intraocular medications are frequently used to facilitate surgical steps.
- Acetylcholine chloride is used to induce miosis during intraocular surgery.
Observation:
- An 83-year-old patient developed immediate systemic reactions post-intraocular acetylcholine chloride instillation.
- Symptoms included severe bradycardia, hypotension, flushing, sweating, and respiratory distress.
- These reactions occurred during intracapsular cataract extraction under local anesthesia.
Findings:
- Intraocular acetylcholine chloride can precipitate significant systemic adverse effects.
- The observed reactions suggest a potential for rapid systemic absorption or a potent systemic effect.
- The patient's vital signs demonstrated a critical decline following drug administration.
Implications:
- Ophthalmic surgeons must be vigilant for systemic side effects of intraocular acetylcholine chloride.
- Preparedness for managing cardiovascular and respiratory compromise is crucial.
- Continuous monitoring of vital signs during intraocular surgery is recommended to ensure patient safety.

