laryngospasm
Pronunciation: luh-RING-goh-spaz-um
A sudden, involuntary spasm of the laryngeal muscles causing partial or complete closure of the vocal cords, representing a critical airway emergency during sedation or anesthesia.
Full Definition
Laryngospasm is a reflexive closure of the glottis triggered by stimulation of the laryngeal mucosa, often by secretions, blood, or foreign material, and is a known complication of dental sedation and general anesthesia. Partial laryngospasm produces a characteristic high-pitched stridor, while complete laryngospasm causes total airway obstruction with no air movement. Recognition and management—including jaw thrust, positive-pressure oxygen, and, if necessary, succinylcholine administration—are core competencies for dental anesthesiologists. In clinical documentation and emergency protocol manuals, 'laryngospasm' must be spelled as a single word (not hyphenated) and should not be confused with 'bronchospasm,' which involves the lower airways. Editors should verify that emergency drill records specifically name 'laryngospasm' as a covered scenario.
Usage
Usage note: Spell as one unhyphenated word. Do not confuse with 'bronchospasm' (lower airway) or 'laryngitis' (inflammation). In emergency checklists, laryngospasm and bronchospasm should appear as distinct, separately addressed scenarios.
In Context
- "The emergency protocol manual required quarterly laryngospasm drills for all clinical staff." — Office emergency preparedness manual
- "Partial laryngospasm was noted following airway stimulation and resolved with positive-pressure oxygen." — Complication report