Clinical Acumen: Vocal Cord Dysfunction in a Child with Asthma

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Abstract
Vocal cord dysfunction is uncommon in children. We present the case of a 12-year-old boy with a history of mild, intermittent asthma from 7 to 10 years of age. Subsequently, severe, rapid-onset attacks of respiratory distress occurred with increasing frequency. After a life-threatening attack of airway obstruction with 3 minutes of apnea, he was hospitalized for diagnostic studies. Although pulmonary function tests were normal, laryngoscopy under general anesthesia revealed extremely severe vocal cord spasm induced by minimal contact of the laryngoscope. It required intravenous lidocaine and muscle relaxant to reverse. Spasm was not demonstrable one week later on repeat laryngoscopy and bronchoscopy. No structural abnormalities were seen. There was considerable family stress exacerbated by anxiety about the patient's illness. Parents were told that the condition was different from asthma and probably functional in origin. There have been no further episodes, possibly due to counseling and education in relaxation techniques as well as oral pharmacotherapy for asthma with avoidance of inhaled medications.

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