The clinical spectrum of necrotising fasciitis. A review of 15 cases

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Abstract
Necrotising fasciitis represents a spectrum of disease which ranges from fulminant through acute to subacute varieties. While fulminating necrotising fasciitis is a well recognised entity the subacute variety is not. To assess six years' experience of necrotising fasciitis at Waikato Hospital. Cases of necrotising fasciitis were identified from discharge statistics for the period 1990-1995. Records were reviewed for clinical features, predisposing factors, microbiology, histology, treatment and outcome. Fifteen cases were identified of which ten were female. The average age was 55 years (range of 15-92 years). One patient presented with fulminant, eight with acute and six with subacute necrotising fasciitis. Significant blister formation was noted in eight cases. Risk factors were identified in 14 patients including trauma, renal impairment, diabetes mellitus, and various drugs including diclofenac (four patients), naproxen (one patient) and prednisone (two patients). Group A beta haemolytic streptococcus (GABHS) was identified in ten cases. Swab or tissue cultures had the highest yield for isolating the organism. Blood cultures grew GABHS in only three of 12 cases. Eight patients (53%) died. Of the survivors all but one patient required debridement and skin grafting. Necrotising fasciitis is a clinical spectrum of disease. It affects a wide age group and can have associated morbidities. It is often a fatal disease. Early recognition, high dose antibiotics and surgical debridement are important in the management of the entire spectrum of necrotising fasciitis.