Abstract

Background: Necrotizing fasciitis (NF) is a rapidly progressive and life-threatening infection of the fascia and subcutaneous tissues. Early diagnosis and prompt surgical intervention are critical to reducing morbidity and mortality. This case report highlights the importance of point-of-care ultrasound (PoCUS) in the rapid diagnosis of NF.

Case Presentation: A  34-year-old male carpenter presented to the Emergency Department of Casey Hospital, with a 48-hour history of increasing swelling and pain in his right arm and chest. Two weeks prior, he sustained an open wound to his right wrist from a rusty nail. Initial management by his family doctor focused on musculoskeletal injury without antibiotics. On ED presentation, the patient exhibited signs of systemic infection and gross swelling of the right upper limb and chest. PoCUS demonstrated characteristic findings of NF, including cobble stoning and subcutaneous air with dirty shadowing, leading to an expedited surgical consultation and immediate intervention.

Management and Outcome: The patient underwent multiple debridements, antibiotic therapy, and hyperbaric oxygen therapy. Post-surgical rehabilitation showed substantial gains in function and mobility.

Discussion: This case underscores the crucial role of PoCUS in the early diagnosis and management of NF. PoCUS allows for rapid bedside imaging, enabling timely surgical consultation and intervention, thereby improving patient outcomes. The multidisciplinary approach, involving emergency physicians, surgeons, and intensivists, is essential for optimal management of NF.