Swimming-induced pulmonary edema in a tropical climate: a case report.
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BACKGROUND
Swimming-induced pulmonary edema (SIPE) occurs during strenuous physical exertion in cold water and has been reported in scuba divers, free-diving competitors, combat swimmers, and triathletes. We describe a case of SIPE in a combat swimmer in warm tropical waters.
METHODS
A 21-year old diver trainee developed dyspnea, chest discomfort and hemoptysis after performing a 2-km sea swim in water temperatures of around 30°C. Over a two-hour period, his oxygen saturations deteriorated. Chest X-ray showed pulmonary edema. He was admitted to the general ward for observation and was given supportive treatment. His symptoms resolved over two days. Repeat CXR was normal. He was reviewed and certified fit to continue with diver training.
CONCLUSIONS
Much of the earlier literature on SIPE describes the development of symptoms after exposure to temperate waters as one main risk factor. This case highlights the risk of development of SIPE in warm tropical waters. With a low reported incidence of SIPE in warm waters, this condition is likely to be underdiagnosed. There is therefore a need to increase local awareness of SIPE in the medical community. A deliberate effort to collate data on SIPE in our local community will help us to better understand the pathophysiology of SIPE in the context of a tropical climate.
CONCLUSIONS
Development of SIPE in tropical waters suggests that other risk factors may be predominant. There should be a high index of suspicion when any strenuous in-water activity is conducted so that timely treatment may be instituted.
