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Swimming-induced pulmonary edema in a tropical climate: a case report

Purpose: Pulmonary edema following hyperbaric oxygen (HBO2) therapy is a rare clinical phenomenon. This case report describes such a patient – a 56-year-old woman who suffered from severe pulmonary edema after HBO2 therapy for carbon monoxide (CO) poisoning. 

Case: Patient experienced ecphysesis and dyspnea suddenly after HBO2 therapy (100% oxygen at 0.25 MPa, for 60 minutes with a five-minute air break and decompression at 0.01 MPa/minute). Post therapy her heart rate (HR), blood pressure (BP), respiratory rate (RR) and oxygen saturation (SO2) were 140 bpm, 60/40 mmHg, 

38 bpm and 84%, respectively. Diagnoses of acute pulmonary edema and shock were made. 

Various treatments including antishock, tracheal intubation, mechanical ventilation for respiratory support, a diuretic, dexamethasone, asthma relief, and acidosis correction were administered. Pulmonary computed tomography (CT) indicated significant pulmonary edema. Due to active treatment, the patient showed gradual improvement. Pulmonary CT re-examination showed pulmonary edema markedly improved. At the two-year follow-up, the patient reported no abnormal mental or neurological symptoms. 

Conclusion: Acute pulmonary edema is rare but can lead to serious side effects of HBO2 therapy in patients with severe acute CO poisoning. This complication must be must considered when administering HBO2 therapy to patients with severe CO poisoning.

DOI: 10.22462/5.6.2017.11