European Archives of Oto-Rhino-Laryngology

, Volume 266, Issue 2, pp 301–304 | Cite as

Acute laryngeal and bronchial obstruction after CS (o-chlorobenzylidenemalononitrile) gas inhalation

  • E. Karaman
  • S. Erturan
  • C. DumanEmail author
  • M. Yaman
  • G. Unal Duman
Case Report


CS gas (o-chlorobenzylidenemalononitrile) is one of the most commonly used riot agents. It can create excessive tearing, conjunctivitis, uncontrolled blinking (blepharospasm) and a sensation of burning and pain at initial exposure. Pulmonary edema (ARDS) and/or diffuse airway lesions on human would be lethal after CS inhalation. We report a case with acute laryngeal and bronchial obstruction due to vocal cord edema and extensive crusting at glottic level, trachea and bronchi. The CS gas was sprayed in a 6 × 6 m2 closed room, and she was exposed to increased concentration of the gas for 10 s. Surprisingly, her initial symptoms were raised 21 days after CS spray exposure.


CS gas (o-chlorobenzylidenemalononitrile) Laryngeal obstruction Bronchial obstruction 


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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • E. Karaman
    • 1
  • S. Erturan
    • 2
  • C. Duman
    • 1
    Email author
  • M. Yaman
    • 2
  • G. Unal Duman
    • 3
  1. 1.Otorhinolaryngology Department, KBB ABD, Cerrahpasa Medicine FacultyIstanbul UniversityFatih, IstanbulTurkey
  2. 2.Chest Diseases Department, Cerrahpasa Medicine FacultyIstanbul UniversityIstanbulTurkey
  3. 3.The Council of Forensic MedicineThe Ministry of JusticeIstanbulTurkey

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