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Group B streptococcal necrotizing fasciitis from a decubitus ulcer
© © The Author(s). 2010
- Received: 8 June 2010
- Accepted: 6 September 2010
- Published: 3 November 2010
- Creatine Kinase
- Necrotizing Fasciitis
- Decubitus Ulcer
- Subcutaneous Emphysema
- Clostridium Perfringens
A 29-year-old man with paraplegia secondary to a gunshot wound presented to the emergency department (ED) with worsening abdominal pain over the past 2 weeks with associated fever, dysuria, nausea, and vomiting. He had been diagnosed with a urinary tract infection (UTI) 2 days earlier and was started on antibiotics without improvement.
The patient was taken for emergent exploratory laparotomy and extensive debridement. Throughout his hospital course he returned to the operating room (OR) a total of 11 times for further debridement and repair of complications, which included a perforated cecum and a colocutaneous fistula. Cultures from the wound grew Prevotella bivia and group B streptococci, while cultures of the peritoneal tissue grew only group B streptococci. Neither blood nor urine cultures grew any bacteria. In addition to his numerous surgeries he was treated with IV clindamycin and piperacillin/tazobactam. After 10 weeks of hospitalization he was transferred to a rehab facility.
Necrotizing fasciitis, more commonly known as the “flesh-eating disease,” is an aggressive and highly destructive infection of fascia and muscle with a high morbidity and mortality. Necrotizing fasciitis from decubitus ulcers is rare, with only a few reported cases [1, 2]. The diagnosis can be difficult, as symptoms are nonspecific and the initial skin lesions are often benign compared to the underlying tissue destruction . A high index of suspicion should be present when abdominal radiographs demonstrate subcutaneous emphysema in a patient with skin lesions . On CT, free air with evidence of soft tissue invasion is consistent with the diagnosis . This case is unique because the decubitus ulcer and peritoneal samplings both grew and isolated group B streptococci as the causative agents; necrotizing fasciitis is typically caused by group A streptococci, Staphylococcus aureus, Vibrio vulnificus, Clostridium perfringens, Bacteroides fragilis, or mixed flora.
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