title: A 38-year-old hairdresser with irritant-associated vocal cord dysfunction.
abstract: The present case study reports the first case of a 38-year-old hairdresser with irritant-associated vocal cord dysfunction (VCD) due to alkaline persulfate, who was referred on suspicion of occupational asthma. Several tests were performed, including specific inhalation challenge and  upper airway endoscopy. During the specific inhalation challenge to alkaline persulfate, the patient experienced dysphonia and a non-significant decrease in forced expiratory volume in 1 second on spirometry. Upper airway endoscopy was then performed and revealed VCD. A specific inhalation  challenge test is therefore essential in cases of VCD to exclude possible concomitant occupational asthma.
authors.affiliation: Centre de Consultations de Pathologies Professionnelles, CHU de Nancy, Vandoeuvre lès Nancy, France.
authors.forename: F
authors.initials: F
authors.lastname: Herin
authors.forename: M
authors.initials: M
authors.lastname: Poussel
authors.forename: J-M
authors.initials: JM
authors.lastname: Renaudin
authors.forename: A
authors.initials: A
authors.lastname: Leininger
authors.forename: C
authors.initials: C
authors.lastname: Moreau-Colson
authors.forename: O
authors.initials: O
authors.lastname: Menard
authors.forename: C
authors.initials: C
authors.lastname: Paris
mesh_terms: D000328:Adult; D001249:Asthma / Q000175:diagnosis; D001505:Beauty Culture; D001985:Bronchial Provocation Tests; D003937:Diagnosis, Differential; D055154:Dysphonia / Q000139:chemically induced* / Q000175:diagnosis / Q000503:physiopathology; D004724:Endoscopy; D005260:Female; D005541:Forced Expiratory Volume; D058206:Hair Bleaching Agents / Q000009:adverse effects*; D006801:Humans; D019570:Inhalation Exposure; D007509:Irritants / Q000009:adverse effects*; D009784:Occupational Diseases / Q000139:chemically induced* / Q000175:diagnosis / Q000503:physiopathology; D016273:Occupational Exposure; D011237:Predictive Value of Tests; D013147:Spirometry; D014827:Vocal Cords / Q000187:drug effects* / Q000503:physiopathology
chemical_list: D058206:Hair Bleaching Agents; D007509:Irritants