Author/Authors :
Han, In Soo Department of Anestheiology and Pain Medicine - College of Medicine - The Catholic University of Korea - Seoul, Korea , Han, Bo Mi Department of Anestheiology and Pain Medicine - College of Medicine - The Catholic University of Korea - Seoul, Korea , Jung, Soo Yeon Department of Anestheiology and Pain Medicine - College of Medicine - The Catholic University of Korea - Seoul, Korea , Yoon, Jun Rho Department of Anestheiology and Pain Medicine - College of Medicine - The Catholic University of Korea - Seoul, Korea , Chung, Eun Yong Department of Anestheiology and Pain Medicine - College of Medicine - The Catholic University of Korea - Seoul, Korea
Abstract :
Negative pressure pulmonary hemorrhage (NPPH) is an uncommon complication of upper
airway obstruction. Severe negative intrathoracic pressure after upper airway obstruction can
increase pulmonary capillary mural pressure, which results in mechanical stress on the pulmonary capillaries, causing NPPH. We report a case of acute NPPH caused by laryngospasm in a
25-year-old man during the postoperative period. Causative factors of NPPH include negative
pulmonary pressure, allergic rhinitis, smoking, inhaled anesthetics, and positive airway pressure
due to coughing. The patient’s symptoms resolved rapidly, within 24 hours, with supportive
care.
