Identification of infectious species after resection of soft-tissue sarcomas.

BACKGROUND: Pathogenic species in deep tissue infections after soft-tissue sarcoma (STS) resection is largely unstudied, particularly the role of anaerobic bacteria, risks factors for those pathogens, and the time course of infection presentation. METHODS: Retrospective analysis of 64 patients requiring operative debridement for deep tissue infection after STS resection was undertaken to identify infectious species and study risk factors for anaerobic infections. Kaplan-Meier methods examined the time course of infection presentation. RESULTS: STS subtypes were most commonly pleomorphic STS, myxofibrosarcoma, and undifferentiated STS. Staphylococcus aureus was the most common organism isolated (56%). Twenty (31%) infections were positive for ≥1 anaerobic organism. Twelve gram-positive and 10 gram-negative aerobic organisms were isolated. Most (90%) anaerobic-containing infections were polymicrobial, vs 52% of purely aerobic infections. No significant risk factors for anaerobic infections were identified. Median time from tumor resection until debridement was significantly greater for anaerobic infections (54.5 days) than for purely aerobic infections (29.5 days; P = 0.004), a difference so pronounced that using "presentation after 53 days" as a proxy for the presence of anaerobic pathogens had an accuracy of 81%. CONCLUSIONS: Because polymicrobial and anaerobic bacterial infections are common, we strongly support antibiotic use with anaerobic coverage at debridement, particularly for infections presenting later.

Post-Surgical Complications After Bladder Outlet Reducing Surgery: An Analysis of The FDA Manufacturer and User Facility Device Experience (MAUDE) Database.

OBJECTIVE: To examine voluntary reports in the Food & Drug Administration (FDA) Manufacturer and User Facility Device Experience (MAUDE) database, categorize complications and assign device-related causality with transurethral resection of the prostate (TURP), prostatic urethral lift (PUL), and transurethral water vapor therapy (TWVT). METHODS: A review was performed using the terms "Urolift," "Rezum," and "transurethral resection of the prostate" between 01/01/2015 and 12/31/2019. Duplicate and incomplete reports were excluded. The Gupta system was used to report complications and device related causality.1 Pearson's Chi-square analysis was performed to compare minor (Level 1) versus major (Levels 2-4) complications. RESULTS: A total of 548 events were examined. After removal of duplicates (n = 60), irrelevant reports (n=65), and incomplete information (n = 14), we included 409 events (74.6%). Of the 409 events, 214 were for TURP, 112 for TWVT, and 83 for PUL. In aggregate, 39.4% of events were minor/Level 1 (n=161/409). The proportion of subjects with Level 2-4 complications versus Level 1 complications was significantly higher for PUL than TURP or TWVT [X2 (2, N = 408) = 41.4023, P < .00001]. Device causality was attributable to device malfunction in 60.4% of cases (n=247/409). CONCLUSION: Device malfunction was noted in all groups and 39.4% of these were minor (Level 1). However, the majority of PUL reports noted a Level 3 or 4 complication (50.6%, 42/83), primarily bleeding related. Previous studies have not revealed significant risk of bleeding and suggests a discrepancy between study data and real-world experience that may alter patient counseling practices.