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Stridor is a topic covered in the 5-Minute Emergency Consult.

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  • High-pitched audible wheezing and vibratory harsh sounds mainly on inspiration.
  • Impedance of air movement through the upper airway.
  • It implies a laryngotracheal airway obstruction.


  • Congenital:
    • Laryngomalacia
    • Laryngeal webs/rings
  • Vocal cord dysfunction:
    • Congenital
    • Surgical injury
    • Postintubation trauma
    • Thyroid malignancy
    • Mediastinal mass
    • Neural abnormalities (e.g., meningomyelocele, Arnold–Chiari malformation)
  • Subglottic stenosis:
    • Postoperative scarring
    • After radiation therapy
    • After prolonged endotracheal intubation
  • Subglottic hemangioma
  • Infection:
    • Bacterial tracheitis
    • Epiglottitis
    • Viral croup
    • Peritonsillar abscess
    • Retropharyngeal abscess
    • Supraglottitis
    • Uvulitis (e.g., Quincke disease)
    • Ludwig angina
    • Diphtheria
    • Tetanus
  • Extrinsic compression:
    • Trauma
    • Hematoma
    • Vascular anomalies (e.g., rings)
  • Intraluminal obstruction of the trachea:
    • Foreign body
    • Tracheomalacia
    • Cyst
    • Invasive tumors
    • Squamous cell
    • Lymphomas
    • Thyroid masses/carcinomas
    • Laryngeal or tracheal papilloma
  • Angioedema

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Rosen, Peter, et al., editors. "Stridor." 5-Minute Emergency Consult, 5th ed., Lippincott Williams & Wilkins, 2016. Emergency Central, emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307483/all/Stridor.
Stridor. In: Rosen P, Shayne P, Barkin AZ, et al, eds. 5-Minute Emergency Consult. 5th ed. Lippincott Williams & Wilkins; 2016. https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307483/all/Stridor. Accessed April 26, 2019.
Stridor. (2016). In Rosen, P., Shayne, P., Barkin, A. Z., Wolfe, R. E., Hayden, S. R., Barkin, R. M., & Schaider, J. J. (Eds.), 5-Minute Emergency Consult. Available from https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307483/all/Stridor
Stridor [Internet]. In: Rosen P, Shayne P, Barkin AZ, Wolfe RE, Hayden SR, Barkin RM, Schaider JJ, editors. 5-Minute Emergency Consult. Lippincott Williams & Wilkins; 2016. [cited 2019 April 26]. Available from: https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307483/all/Stridor.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Stridor ID - 307483 ED - Rosen,Peter, ED - Shayne,Philip, ED - Barkin,Adam Z, ED - Wolfe,Richard E, ED - Hayden,Stephen R, ED - Barkin,Roger M, ED - Schaider,Jeffrey J, BT - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307483/all/Stridor PB - Lippincott Williams & Wilkins ET - 5 DB - Emergency Central DP - Unbound Medicine ER -