BACKGROUND: Fournier\'s Gangrene is a severe surgical infectious disease, and various risk factors can increase its mortality rate. The purpose of this study is to retrospectively analyze the clinical characteristics and laboratory data of Fournier\'s Gangrene patients, followed by an analysis of mortality-related risk factors. This study has no secondary objectives.
METHODS: This study included 46 hospitalized patients diagnosed with Fournier\'s Gangrene at Suzhou Traditional Chinese Medicine Hospital from December 2013 to March 2024. Clinical data for all patients were extracted from the electronic medical records system. The collected data included gender, age, duration of illness, length of hospital stay, sites of infection involvement, comorbidities, white blood cell count, hematocrit, albumin, blood glucose, creatinine, serum sodium, serum potassium upon admission, microbial culture results, and patient outcomes (survival/death). The Simplified Fournier Gangrene Severe Index (SFGSI) was used to score all patients. Patients were categorized into survival and death groups based on clinical outcomes. Differences between categorical variables were compared using the χ² test or Fisher\'s exact test. Differences between numerical variables were compared using Student\'s t-test or the Mann-Whitney U test. Binary logistic regression was employed to analyze the risk factors for mortality in Fournier\'s Gangrene.
RESULTS: Among the 46 Fournier\'s Gangrene patients, 39 were male (84.8%) and 7 were female (15.2%). The age ranged from 17 to 86 years, with a median age of 61 years. Fourteen cases (30.4%) were confined to the perianal area, 26 cases (56.5%) had fascial necrosis involving the perianal, perineal, and genital regions, while 6 cases (13.0%) extended to the abdominal wall. At a 3-month postoperative follow-up, 43 patients (93.5%) survived, while 3 patients (6.5%) died shortly after admission due to severe illness. Based on the outcome, patients were divided into survival and death groups with 43 and 3 cases, respectively. Significant differences were observed between the two groups in terms of age (P<0.05), extension to the abdominal wall (P<0.01), hematocrit (P<0.01), albumin (P<0.01), SFGSI (P<0.01), and SFGSI>2 (P<0.01). Binary logistic regression analysis indicated that decreased hematocrit was an independent risk factor for mortality in Fournier\'s Gangrene patients.
CONCLUSIONS: This study provides a detailed analysis of the clinical characteristics and risk factors for mortality in Fournier\'s Gangrene patients. The primary outcome of this study is that a decreased hematocrit is an independent risk factor for predicting mortality in FG patients. These findings offer valuable prognostic insights for clinicians, underscoring the importance of early identification and correction of reduced hematocrit to improve patient outcomes and survival rates.

Objective: To observe the clinical efficacy of a new type of \"firebreak\" drainage with skin preservation in the treatment of Fournier\'s gangrene. Methods: This technique is suitable for patients with perianal necrotizing fasciitis who can tolerate surgery without large area of skin blackness and necrosis. Procedure and key points: (1) The dividing line between inflammatory tissue and normal tissue was determined according to imaging examination and intraoperative exploration; (2) The abscess cavity was cut along the most obvious part of the abscess fluctuation, with a long diameter of 3~4 cm and a short diameter of 1~2 cm; (3) Necrotic tissue was discreetly separated and removed from the main incision to the outer edge of the infection. A fusiform incision was made every 3 to 5 cm, with a long diameter of 2 to 3 cm and a short diameter of 1 cm, and discreetly separated until the normal tissue, and a hose was hung between the adjacent incisions for drainage. (4) Each adjacent edge cut between the stealth separation and hanging hose drainage, forming a \"firebreak\"; (5) Rinse the wound repeatedly; (6) If the infection invades the rectum, colostomy is performed as required. The case data of 11 patients with perianal necrotizing fasciitis admitted to the Second Affiliated Hospital of Nanjing University of Chinese Medicine from July 2019 to February 2023 were retrospectively analyzed. All patients were treated with emergency surgical debridement by \"firebreak\" drainage with skin preservation. Results: All 11 cases were cured with 100%. One case underwent multiple operations. The hospitalization time was 11-46 days, with an average of 22 days. The wound healing time was 28-75 days, with an average of 43 days. Except for 1 patient with trauma, all the other patients had no significant anal function injury after surgery. All the 11 patients recovered and were discharged from hospital with a median follow-up of 136 (115-413) days. Conclusions: The \"firebreak\" drainage based on skin preservation has the advantages of less trauma and faster recovery, and do not cause obvious anal function damage.
目的： 观察应用一种新型保留皮肤的“防火带”式引流术治疗肛周坏死性筋膜炎的临床疗效。 方法： 本技术适用于就诊时未发生大面积皮肤发黑坏死、可耐受手术的肛周坏死性筋膜炎患者。手术步骤及要点：（1）根据影像学检查及术中探查，确定炎性组织和正常组织的分界线；（2）沿脓肿波动感最明显的部位切开脓腔，长径3~4 cm，短径1~2 cm；（3）从主切口向感染外缘潜行分离清理坏死组织，每分离3~5 cm作一梭形切口，长径2~3 cm，短径约1 cm，潜行分离直至正常组织处，各相邻切口间挂软管对口引流；（4）各相邻边缘切口间均作潜行分离并挂软管引流，形成“防火带”；（5）反复冲洗创面；（6）如果感染侵及直肠，酌情行结肠造口。回顾性分析2019年7月至2023年2月南京中医药大学第二附属医院收治的11例肛周坏死性筋膜炎患者的病例资料，所有患者均采用保留皮肤的“防火带”式引流术进行了急诊手术清创治疗。 结果： 11例全部治愈，治愈率100%。1例行多次手术。平均住院时间22（11~46）d，平均创面愈合时间43（28~75）d。除了1例外伤患者，其余患者术后均无明显肛门功能损伤，11例患者均痊愈出院，术后中位随访136（115~413）d，无复发。 结论： 基于保留皮肤的“防火带”式引流术治疗肛周坏死性筋膜炎具有创伤小，恢复快等优势，且不造成明显肛门功能损伤。.

Background: Fournier gangrene (FG) is a form of necrotizing fasciitis involving the perineal, peri-anal, and genital structures, and has exceptionally high mortality rates. To help in early detection of high-risk patients, we aimed to systematically review factors associated with mortality from FG. Patients and Methods: Searches were conducted in PubMed, Embase and Scopus. In our review, a minimum of five patients were required and this was to exclude studies with exceedingly small sample sizes, such as case reports and small case series, with minimal relevance in comparison to larger scale studies. Patient characteristics, causative microbes, anatomic areas of infection, presence of comorbidities, severity scores, causes of FG, and complications were extracted and compared to identify factors related to mortality. Results: A total of 57 studies were included in the review. Across 3,646 study participants, the mortality rate of FG was 20.41%. The mean age of non-survivors was 61.27 years. There were more total male deaths, however, the mortality rate was higher in females. Diabetes mellitus was the most common comorbidity in those who died, but the highest mortality rate was seen in HIV patients (54.17%). Mortality rates did not differ widely among antibiotic agents. Regarding causative organisms, fungal infections had the highest rates of mortality (68.18%) and the most common microbe leading to death was Escherichia coli. Conclusions: Female gender, comorbidities, anatomic distribution, development of sepsis, and fungal infection all increased risk for mortality. Early identification of risk factors, and provision of appropriate treatment are crucial in reducing mortality rates of high-risk patients with FG.

Fournier\'s gangrene is a rare, rapidly progressive, fulminant form of infective necrotising fasciitis of the genital, perianal and perineal regions. We present a case of Fournier\'s gangrene of the penis complicating acute genital ulceration and recurrent paraphimosis that was secondary to contemporaneous COVID-19 and Mpox infection in an otherwise healthy 41-year-old man. It is important for clinicians to be aware of Fournier\'s gangrene, as early detection remains the cornerstone of effective tissue and indeed life conserving management.

To determine the efficacy of hyperbaric oxygen therapy (HBO) in the treatment of necrotizing soft tissue infections (NSTI), we conducted a meta-analysis of the available evidence.
Data sources were PubMed, Embase, Web of Science, Cochrane Library, and reference lists. The study included observational trials that compared HBO with non-HBO, or standard care. The primary outcome was the mortality rate. Secondary outcomes were the number of debridement, amputation rate and complication rate. Relative risks or standardized mean differences with 95% confidence intervals were calculated for dichotomous and continuous outcomes, respectively.
A total of retrospective cohort and case-control studies were included, including 49,152 patients, 1448 who received HBO and 47,704 in control. The mortality rate in the HBO group was significantly lower than that in the non-HBO group [RR = 0.522, 95% CI (0.403, 0.677), p < 0.05]. However, the number of debridements performed in the HBO group was higher than in the non-HBO group [SMD = 0.611, 95% CI (0.012, 1.211), p < 0.05]. There was no significant difference in amputation rates between the two groups [RR = 0.836, 95% CI (0.619, 1.129), p > 0.05]. In terms of complications, the incidence of MODS was lower in the HBO group than in the non-HBO group [RR = 0.205, 95% CI (0.164, 0.256), p < 0.05]. There was no significant difference in the incidence of other complications, such as sepsis, shock, myocardial infarction, pulmonary embolism, and pneumonia, between the two groups (p > 0.05).
The current evidence suggests that the use of HBO in the treatment of NSTI can significantly reduce the mortality rates and the incidence rates of complications. However, due to the retrospective nature of the studies, the evidence is weak, and further research is needed to establish its efficacy. It is also important to note that HBO is not available in all hospitals, and its use should be carefully considered based on the patient\'s individual circumstances. Additionally, it is still worthwhile to stress the significance of promptly evaluating surgical risks to prevent missing the optimal treatment time.

Fournier gangrene (FG) is a life-threatening disease affecting the soft tissues of the genital, perineal, and perianal regions. This retrospective study aimed to summarize the characteristics of FG and evaluate the effects of negative-pressure wound therapy (NPWT). We analyzed clinical data of 36 patients with FG admitted to our department. Thirty-four cases had perianal and external genital infections, and the other two had secondary infection of the urinary fistula after trauma and retroperitoneal abscess, respectively. Monomicrobial, polymicrobial, culture-negative, and fungal infections were identified in 16, 17, 2, and 1 cases, respectively. Escherichia coli, Enterococcus faecalis, Enterococcus faecium, Klebsiella pneumoniae, and Staphylococcus haemolyticus were the most common pathogens. The mortality rate was 8%. Twenty-seven and nine patients were treated with NPWT (group A) and conventional dressing (group B), respectively. The length of stay was 38.0 ± 16.1 and 51.0 ± 17.3 days, number of operations were 3 (3,6) and 13 (4,17), and wound healing times were 39.2 ± 18.1 and 66.5 ± 17.1 days in groups A and B, respectively. Taken together, clinicians should always consider the possibility of perianal or external genital infections progressing to FG in the daily work, especially for patients with diabetes mellitus. Enterobacteriaceae, Enterococcus, and Staphylococcus haemolyticus are the most common causative pathogens, and NPWT is an effective adjuvant therapy for wound management with fewer operations and a shorter wound healing time.

OBJECTIVE: In this study, we aimed to illustrate distinctions between Fournier\'s gangrene (FG) and lower extremity necrotising fasciitis (NF) and screen out possible risk factors of poor prognosis for each cohort.
METHODS: The medical records of qualified patients with NF admitted to the Second People\'s Hospital of Yibin from January 2016 to June 2021 were retrospectively reviewed. All participants were anatomically categorised into FG and lower extremity NF groups, and their baseline data and microbiological results were compared. Further comparisons of critical parameters were conducted between survivors and nonsurvivors within each group.
RESULTS: A total of 49 patients were included in the study with a median age of 58 years, and overall mortality was 20.4%. There were 18 patients with FG and 31 patients with lower extremity NF. A microbiology distinction was found-the predominance of gram-negative infection in FG and gram-positive infection in lower extremity NF. High Fournier\'s gangrene severity index scores (greater than 7), advanced age, procalcitonin and D-dimer value were identified as risk factors for FG, and the presentation of sepsis was an alarming indicator for lower extremity NF.
CONCLUSIONS: The distinction of microbiology might provide advice for appropriate antibacterial administrations. In addition, with practical prognostic predicting tools, clinicians might be able to identify patients at increased risk and intervene promptly to avoid unfavourable outcomes.

BACKGROUND: Fournier\'s gangrene (FG), a urological emergency with high mortality, is an infectious necrotizing fasciitis of the perineal and genital regions. The majority of FG is caused by polymicrobial organisms involving mixed aerobes and anaerobes but rarely reveals Actinomyces species.
METHODS: We report a healthy 67-year-old Asian male who presented with rapidly progressive painful swelling of the scrotum. Clinically diagnosed with FG, the patient underwent an emergency radical debridement, followed by broad-spectrum antibiotics and negative pressure wound therapy. The identification of the causative microorganisms showed Actinomyces turicensis and the antibiotic treatment was adjusted accordingly. After wound bed preparation, we took split-thickness skin grafts to cover the scrotal wound. Active management to minimize faecal contamination was applied throughout the whole course of treatment and repair. The patient was satisfied with the outcome. This was an extremely rare case of A. turicensis as the main causative pathogen of FG.
CONCLUSIONS: FG due to Actinomyces species is rarely reported, but we should still consider this pathogenic microorganism that has long been neglected.

BACKGROUND: To describe the clinical characteristics and management for Fournier\'s gangrene. Experience summary and literature references are provided for future treatment improvement.
METHODS: We retrospectively reviewed the cases diagnosed with Fournier\'s gangrene in our department from June 2016 to June 2019. Clinical data, including manifestation, diagnosis, treatment and outcomes for Fournier\'s gangrene were presented.
RESULTS: There were 12 patients enrolled in this paper, with the average age of 60 years old. It showed a male predominance with male-to-female ratio of 6:1. The average of laboratory risk indicator for necrotizing fasciitis (LRINEC) score was 10.1. Diabetes mellitus was the main predisposing disease. 11 patients received emergency debridement and 1 patient died of sepsis on the 2nd day after admission. The mortality rate was 8.3%. 6 cases developed complications, including sepsis, pneumonia, renal and heart failure. Negative pressure wound therapy (NPWT) was applied in 10 cases, while the rest 1 received normal daily dressing changes because of fecal contamination. Flaps were utilized in 2 patients to cover the defect, including one with advancement flap and one with pudendal-thigh flap, while others received secondary suture, secondary healing, skin graft or combined management. No relapse was observed during the follow-up visits.
CONCLUSIONS: Fournier\'s gangrene is a life-threatening infection that requires early diagnosis and surgery intervention. The predisposing disease, clinical manifestation and LRINEC score should be taken into comprehensive consideration, which is helpful for timely diagnosis. Moreover, further successful treatment depends on the aggressive debridement, broad-spectrum antibiotics therapy, wound management and closure choice.

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