Han In Soo, Han Bo Mi, Jung Soo Yeon, Yoon Jun Rho, Chung Eun Yong
Department of Anestheiology and Pain Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Acute Crit Care. 2018 Aug;33(3):191-195. doi: 10.4266/acc.2016.00689. Epub 2018 Aug 31.
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.
负压性肺出血（NPPH）是上呼吸道梗阻的一种罕见并发症。上呼吸道梗阻后严重的胸内负压会增加肺毛细血管壁压力，这会对肺毛细血管造成机械性压力，从而导致负压性肺出血。我们报告一例25岁男性术后因喉痉挛引起急性负压性肺出血的病例。负压性肺出血的病因包括肺负压、过敏性鼻炎、吸烟、吸入麻醉剂以及咳嗽引起的气道正压。通过支持治疗，患者症状在24小时内迅速缓解。
