A Case of Acute Pulmonary Edema Due to Inhalation of Nitric Acid

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  • Hayashi Masachika
    Department of Respiratory Medicine, Nagaoka Red Cross Hospital
  • Ebe Yusuke
    Department of Respiratory Medicine, Nagaoka Red Cross Hospital
  • Sato Kazuhiro
    Department of Respiratory Medicine, Nagaoka Red Cross Hospital

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Other Title
  • 硝酸ガス吸入による急性肺水腫の1例

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Abstract

Background. There have been few reports of acute pulmonary edema after exposure to nitric acid. Case. In July 2012, a 43-year-old man inhaled nitric acid during an industrial process for plating detachment. Thereafter, he developed cough and dyspnea with hypoxia, and diffuse lung shadows were recognized on chest X-ray. Bronchoscopic examination revealed reddening of the mucosal surface, and in some areas the damaged mucosa appeared to be erosive. Bronchoalveolar lavage was performed, and the fluid recovered had a yellowish appearance. After admission, oxygen supplementation and administration of antibiotics alone resulted in improvement of the lung shadows. Conclusion. In factory workers who develop acute respiratory failure, pulmonary edema due to inhalation of toxic fumes should be considered.

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