• D M Björkbom and M Brabrand.
• Department of Emergency Medicine, Odense University Hospital, Sdr. Boulevard 29, DK-5000 Odense C, Denmark.
• Acute Med. 2018 Jan 1; 17 (4): 203-211.

BackgroundFire smoke inhalation cause a wide range of symptoms immediately or after a relatively asymptomatic period. In this review, we will focus on delayed onset pulmonary edema (DOPE); the incidence and duration of potential delay. As the symptoms may not present immediately, seemingly healthy patients could be inadvertently be sent home. Therefore, many authors recommend observation for 6-24 hours depending on the extent of inhalation injury.MethodsA systematic literature search in Embase, Medline, and Cochrane library was performed on 14 April 2016. All studies describing smoke exposure and delayed pulmonary edema were included. Additional relevant studies were identified snowballing based on included studies.ResultsWe included seven studies, with a total of 135 patients, describing pulmonary edema. Symptoms generally developed after a relatively asymptomatic period (up to 36 hours post-injury) until mechanical ventilation was needed. However, pulmonary edema developing after 36 hours was most likely due to other factors related to burn injury (excessive intravenous fluids, de novo heart failure, infection or problems related to intubation).ConclusionDelayed onset pulmonary edema can develop as late as 36 hours postinjury after a relatively uneventful phase. But it would have been rare to have been completely asymptomatic before developing pulmonary edema.

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