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Necrotizing fasciitis: the Howard University Hospital experience
Abstract:
All surgical cases from 1965 to 1980 and autopsy cases from 1974 to 1980 diagnosed at Howard University Hospital as necrotizing fasciitis (NF) were reviewed. Eight patient fulfilled the criteria for NF, which included (1) fascial necrosis, (2) spreading cellulitis with undermining of fascial planes, and (3) systemic toxicity as evidenced by altered mental state and hyperthermia. Bacteroides fragilis was commonly found in our most recent cases. Poor prognostic signs included (1) documented bacteremia, (2) preoperative hypotension (systolic blood pressure lower than 80 mmHg), and (3) hypocalcemia (serum calcium less than 7.0 mg/dL). Therapy consisted of wide debridement with systemic antibiotics and delayed skin grafting when needed.
Insights
Necrotizing fasciitis (NF) is a severe infection requiring prompt diagnosis and treatment. Early identification of poor prognostic signs like bacteremia and hypotension is crucial for patient survival.
Area of Science:
- Infectious Diseases
- Surgical Pathology
- Critical Care Medicine
Background:
- Necrotizing fasciitis (NF) is a rapidly progressive soft tissue infection with high morbidity and mortality.
- This study reviews historical cases to identify diagnostic criteria, common pathogens, and prognostic indicators.
Observation:
- Eight cases of NF were identified between 1965 and 1980 based on fascial necrosis, spreading cellulitis, and systemic toxicity.
- Bacteroides fragilis emerged as a common pathogen in more recent cases.
- Key prognostic indicators included documented bacteremia, preoperative hypotension (systolic BP < 80 mmHg), and hypocalcemia (serum calcium < 7.0 mg/dL).
Findings:
- The study defined specific clinical and pathological criteria for diagnosing NF.
- Bacteroides fragilis was frequently identified in later cases, suggesting a potential shift in causative agents.
- Poor prognostic signs were clearly delineated, aiding in risk stratification.
Implications:
- Prompt surgical debridement, systemic antibiotics, and supportive care are essential for managing NF.
- Early recognition of prognostic factors can guide aggressive treatment strategies and improve patient outcomes.
- Further research into evolving microbial patterns in NF is warranted.