Nitroglycerin relieves laryngospasm
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Updated: Oct 18, 2026

Acetylcholine Re-Challenge After Intracoronary Nitroglycerine Administration
Published on: April 4, 2022
1Department of Anesthesiology, American University of Beirut-Medical Center, Lebanon.
Abstract:
Two young healthy non-asthmatic non-smoking patients developed partial laryngospasm directly post-anaesthesia extubation after routine varicocelectomy and perianal abscess drainage operations under general anaesthesia. Nitroglycerin was administered intravenously in a dose of 4 microg/kg for both cases. The laryngospasm was completely relieved within a minute of nitroglycerin administration in both cases and the relief was maintained thereafter. The two cases suggest that nitroglycerin can be effective in the treatment of post-extubation partial laryngospasm in ASA (class I) patients.
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