Fournier's Gangrene Research Articles

Management of a complex case of Fournier's gangrene in a female patient with ulcerative colitis.

Management of a complex case of Fournier's gangrene in a female patient with ulcerative colitis.

Anterolateral Thigh Flap for Abdominal Wall Defect After Debridement for Meleney's With Fournier's Gangrene: A Case Report of a Rare Outcome

Anterolateral Thigh Flap for Abdominal Wall Defect After Debridement for Meleney's With Fournier's Gangrene: A Case Report of a Rare Outcome

Fournier’s Gangrene Arising from Chronic Ischial Pressure Sore in a Paraplegic Patient: A Case Report

Fournier’s gangrene (FG) is a rare but life-threatening bacterial infection affecting the genital and perianal areas, often associated with high morbidity and mortality rates. Although pressure sores, injuries caused by prolonged pressure on the skin, are considered a risk factor for FG, they are rarely the direct cause of the condition. This case report presents a 65-year-old male with paraplegia and a chronic ischial pressure sore who presented with FG. The patient was treated with prompt surgical debridement and antibiotic therapy, followed by wound reconstruction using a local advancement flap. This enabled a successful outcome, with no further wound issues observed for 6 months. Early diagnosis, imaging modalities, prompt surgical intervention, and appropriate antibiotic therapy are essential for the successful management of FG. This case emphasizes the importance of recognizing the possibility of FG arising from pressure sores and highlights the critical role of early surgical intervention.

Safety of dapagliflozin and empagliflozin in cases with diabetes mellitus or/and heart failure: a retrospective pharmacovigilance study conducted on the eudravigilance database.

Dapagliflozin and empagliflozin are sodium-glucose cotransporter-2 (SGLT2) inhibitors initially approved for the treatment of type 2 diabetes mellitus (DM), and later for heart failure (HF). Considering this differential therapeutic use, we decided to evaluate cases related to these agents by comparing those with DM, HF, or both (DM and HF). A retrospective, pharmacovigilance study was conducted by using data contained in the EudraVigilance from January 1st, 2021, to December 31st, 2023. Cases were classified into those with DM, HF, or both diseases. The Reporting Odds Ratio (ROR), and its 95% confidence interval (95%CI) were computed to compare the reporting probability of the four most reported adverse events. The following comparisons were performed: DM vs. HF; both DM and HF vs. HF; both DM and HF vs. DM. Analyses were adjusted for age, sex, and time between the approval date of the SGLT2 inhibitor and the reporting date. A total of 14,594 (50.5%) cases were classifiable for DM (N = 11,962; 82.0%), HF (N = 2,100; 14.4%), or both DM and HF (N = 532; 3.64%). The empagliflozin was the most reported SGLT2 inhibitor (60.1%), and only 15 cases (0.1%) reported both empagliflozin and dapagliflozin. Cases with DM and both DM and HF were associated with a higher reporting probability of ketoacidosis (ROR: 5.95, 95%CI: 4.87-7.26; ROR: 3.05, 95%CI: 2.27-4.09) and Fournier's gangrene (ROR: 2.30, 95%CI: 1.65-3.20; ROR: 2.30, 95%CI: 1.38-3.82) than HF. These results were also confirmed by adjusted analyses. We found that ketoacidosis and Fournier's gangrene had a higher reporting in cases with DM. Further studies are warranted.

Fournier’s gangrene in voluminous inguinoscrotal herniation: Case report and review of literature

Introduction: Fournier’s gangrene (FG) is a polymicrobial life-threatening infection that affects perineal region and may extend to genitalia and abdominal wall. Necrotizing fasciitis is a rare condition and its association with large inguinoscrotal hernia even rarer. With high mortality rate, some predisposing factors are diabetes and immunodeficiency. Case presentation: We report a case of a 48-year-old man with Fournier’s gangrene associated with voluminous inguinoscrotal herniation which evolved to hernia sac exposure after debridement. Discussion: FG pathophysiology initiates with a localized infection by a combination of gram positive, gram negative and anaerobic bacteria, and its advancing leads to local inflammatory response, thrombosis, blood flow reduction and ischemia. Diagnosis depends on clinical presentation and image evaluation. Conclusion: FG management has been standard in the literature, however its association with inguinoscrotal hernias have not been considered in guidelines. Early diagnosis and proper clinical and surgical treatment are fundamental to avoid life-threatening complications and morbidities.

Comparative analysis of scoring systems for predicting mortality in Fournier gangrene: single center, 15years experience.

To compare 5 published scoring systems (Fournier gangrene severity index [FGSI], Uludag FGSI [UFGSI], age-adjusted Charlson Comorbidity Index [ACCI] and the Quick Sequential Organ Failure Assessment (qSOFA) and the Laboratory Risk Indicator for Necrotizing fasciitis (LRINEC) scores and to evaluate risk factors for outcome prediction in patients with Fournier gangrene (FG). Between 2010 and 2024, 311 patients were included in the study. The data of 276 survivors and 55 non-survivors were compared. Univariate and multivariate analyses were performed to determine which of the 5 scoring systems calculated according to demographic, laboratory and clinical data predicted mortality better. In addition, a cut-off value for these scoring systems was determined by ROC analysis. The mortality rate was 17.6% in FG patients. In all 5 scoring systems, univariate analyses showed higher values in non-survivor patients, while UFGSI and FGSI scoring systems were superior to other scoring systems in multivariate analyses (p < 0.001). ROC analysis using mortality-based sensitivity and specificity revealed that the optimal cut-off values for FGSI, UFGSI, ACCI, SOFA and LRINEC should be equal to or higher than 10, 12, 4, 2 and 8, respectively. UFGSI and FGSI scores had the highest AUC values among all scores. This was followed by ACCI, qSOFAand LRINEC. For a UFGSI score ≥ 12, the sensitivity was 84%, specificity 97%, PPV 85% and NPV 97%. Among the scoring systems used to predict mortality, UFGSI was the most accurate, while LRINEC was the least accurate.

Revisiting Fournier Gangrene: A Contemporary Epidemiological Perspective vs Perineal Cellulitis.

We conducted a population-based analysis of Fournier gangrene (FG) to compare risk factors and mortality with those of perineal cellulitis. We analyzed National Inpatient Sample data (2016-2020) to identify FG and perineal cellulitis cases. Demographic, comorbidity, and procedural data were extracted. Logistic models assessed risk factors of FG diagnosis and mortality. A total of 73,472 cellulitis and 9326 FG cases were identified corresponding to 74,905 (range, 63,050-79,165) and 9115 (range, 7925-11,080) median yearly weighted cases, respectively. FG diagnosis vs cellulitis was positively associated with Native American race (odds ratio [OR], 1.46; 95% CI, 1.19-1.79), weekend (OR, 1.12; 95% CI, 1.06-1.18) or December (OR, 1.33, 95% CI, 1.22-1.44) admissions, diabetes mellitus (OR, 2.51; 95% CI, 2.38-2.64), and malignancy (OR, 2.29; 95% CI, 2.07-2.54). Conversely, Hispanic (OR, 0.79; 95% CI, 0.74-0.85) and Asian/Pacific Islander races (OR, 0.83; 95% CI, 0.69-0.99) and the highest household income quartile (OR, 0.84; 95% CI, 0.78-0.90) were linked to a reduced likelihood of FG diagnosis. Elevated mortality risks were observed with female sex (OR, 1.33; 95% CI, 1.08-1.63), Native American ethnicity (OR, 2.29; 95% CI, 1.14-4.57), and procedural frequency (OR, 1.27; 95% CI, 1.24-1.3) among FG cases. Various patient and clinical factors are linked to the development and mortality of FG compared with perineal cellulitis. Improved access to care and understanding of FG can enhance patient outcomes.

Higher Morbidity and Mortality in Women With Fournier Gangrene Compared With Men: Insights From National Inpatient Sample Data.

To compare Fournier gangrene in female and male patients and identify mortality-associated characteristics in both. We used National Inpatient Sample data (2016-2020) to identify Fournier gangrene cases and extracted demographic, comorbidity, and procedural variables. Multivariable regression models were used to identify mortality risk factors for both cohorts. We identified 2875 female (31%) and 6451 male patients (69%) with Fournier gangrene corresponding to an estimated 14,375 (95% CI, 13,784-14,966) and 32,255 (95% CI, 31,390-33,120) cases, respectively. Female patients were more likely to die than male patients (7.1% vs 5.7%, P < .0001, respectively). The median incidence rates were 1.7 (IQR, 1.5-1.8) and 4 (IQR, 3.6-4.3) cases per 100,000 person-years for female and male patients, respectively. Female patients had higher median age, longer hospital stays, more charges, procedures, and fecal diversion rates, but lower routine discharges than male patients (P < .05). Non-White female patients had increased mortality odds compared with White female patients (odds ratio [OR], 1.49; 95% CI, 1.07-2.07; P = .019). Prolonged interval until initial perineal debridement correlated with higher mortality odds in both female and male patients (OR, 1.02; 95% CI, 1-1.04; P = .034 vs OR, 1.03; 95% CI, 1.01-1.05; P < .0001). Diabetes lowered mortality odds in female and male patients (OR, 0.68; 95% CI, 0.47-0.99; P = .046 vs OR, 0.54; 95% CI, 0.41-0.7; P < .0001). In female patients, Fournier gangrene incidence surpasses previous reports, with slightly worse outcomes compared with male patients, emphasizing the need for precise clinical assessment and early intensive interventions.

National Study of Fournier Gangrene in Spain (2016–2021): Gender/Sex Differences in Mortality and Risks

Background and Objective: The aim of this study was to analyze sex differences in risk factors associated with hospital mortality in patients with Fournier gangrene (FG). Materials and Methods: A retrospective population-based study (2016–2021) included FG hospitalizations in Spain. To identify the risk factors, we used multivariable logistic regression and reported adjusted odds ratios (aORs) with 95% confidence intervals (CIs). Results: There were 3644 admissions for FG during the study period (82.5% men and 17.5% women). The mean hospitalization rate per 1000 admissions/year was 0.23 for men and 0.05 for women, and the mean hospitalization rate per 100,000 inhabitants/year was 2.7 for men and 0.4 in women. The most common comorbidities were hypertension (44.9%) and diabetes mellitus (35.6%). The main complications were sepsis (22.1%), 29.8% were admitted to the intensive care unit and 16.1% died. Mortality was higher in women (aOR 1.32, 95% CI 1.07–1.63). The main independent risk factors for mortality in the entire sample were older age, neoplasms, chronic kidney disease, heart failure, sepsis, acute kidney injury, and admission to the intensive care unit. In women, they were older age, leukemia, sepsis, acute kidney injury, and admission to the intensive care unit. Conclusions: The overall FG mortality rate was slightly higher in women than in men, people aged &gt;64 years, people with chronic kidney disease, sepsis, and acute kidney injury, and admission to the intensive care unit. The independent factors associated with mortality in women were similar in both sexes.

A needs assessment for simulation-based training in emergency urological skills in Ethiopia.

Urologic emergencies are common and complications from their management are high. Simulation-based education (SBE) is a highly effective training method, allowing trainees to learn both technical and nontechnical skills in a safe environment. Training in the management of urological emergencies is limited in many healthcare settings, so we performed a needs assessment for a urological emergencies SBE course in Ethiopia. This study presents data from a descriptive cross-sectional, survey-based survey of consultants and residents in the Ethiopian surgical community. The survey was disseminated using online Google Forms, through social media (WhatsApp), and to colleagues in the College of Surgeons of East, Central and Southern Africa (COSECSA) via email and social media. One hundred-seven results were received; two were discarded due to incomplete data. Fifty three of the respondents were general surgeons and 38 of the respondents were urologists. Sixty nine respondents strongly agreed that simulation-based training was important for first-year surgical residents, whereas twenty-five respondents agreed and nine respondents strongly disagreed; one respondent disagreed and one was neutral. Eighty seven respondents suggested a 3-day training course, whereas 17 respondents suggested a two-day course. More than 80 of the respondents rated training in the management of acute urinary retention, acute scrotum, urethral, and suprapubic catheterization as extreme or very important and 79 respondents wanted education about urologic trauma and Fournier's gangrene. Surgical and urology residents in Ethiopia have expressed a need for, and a strong interest in, simulation-based urological emergency training.

Fournier’s Gangrene: clinical case review and analysis of risk factors for mortality

BackgroundFournier’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.MethodsThis 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.ResultsAmong 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.ConclusionThis 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.

Fournier's Gangrene reconstruction in black patients using SCIP flap and split thickness skin graft: 2 case reports and a literature review

Fournier's gangrene is a potentially life-threatening infectious disease involving the perineum and genitals. Aggressive surgical and medical management is often required, leaving the patient with large integumentary defects. The multiplicity of reconstructive options reported highlights the lack of consensus on the best covering option. Functional and aesthetic considerations are in play, and the literature is scarce on male black patients. We report here two cases of dark-skinned patients presenting with scrotal and penile integumentary defects that were respectively reconstructed with a superficial circumflex iliac artery propeller perforator flap and a split-thickness meshed skin graft and discuss the available literature on the topic.

Breaking Barriers in Fistula Management: The Power of DLPL Laser and Ayurveda Harmony

Background: Anal fistula is a tract between anal canal and perianal skin which often arises from abscesses and can spread in various directions. It becomes complicated if associated with certain comorbidities like Diabetes mellitus. Fourniers gangrene is a complication associated with scrotal fistula. In Ayurveda it is referred to as Bhagandara. The surgical approach aims to be minimally invasive and reduce the chances of recurrence employing techniques such as fistulotomy, Kshar Sutra ligation and laser ablation which has gained popularity for treating fistulas. Case: A 51 year old male patient presented with a swelling in the scrotum along with severe pain at perianal region extending up to base of the scrotum,that was persistent for 5 days, which made sitting and walking difficult for him. Due to recurrent symptoms following surgery for perianal abscess four months prior, he was admitted for treatment.. He was managed and treated of recurrent fistula that originated from scrotal abscess. Discussion: This was Unmargi Bhagandara in which patient faced a challenge as he suffered with diabetes and severe pain. The patient was offered an approach of combining surgical techniques with Ayurvedic principles utilizing specific medications and innovative pain management methods which resulted in significant improvements. Conclusion: The remarkable outcome of this case truly demonstrates the results. It wasn't, about resolving the surgical issue; it also had a positive impact, on the overall wellbeing of the patient. This exemplifies how practicing Ayurveda entails adopting an integrated approach to successfully treat and care for patients.

Can the SIARI score be used at initial admission to predict testes involvement in patients with fournier’s gangrene; a single-centre, retrospective study

BackgroundTo predict testicular involvement in patients diagnosed with Fournier’s gangrene (FG) using the Laboratory Risk Indicator for Necrotizing Fasciitis (LRINEC) score and the site other than lower limb (SIARI) score.MethodsThe medical records of 51 patients operated for FG in our clinic between December 2012 and April 2022 were evaluated retrospectively in this study. Patients’ demographics, and laboratory test results were compared with the testisticular involvement status. Patients with testisticular involvement (n = 10) were compared with patients without testicular involvement (n = 41). The SIARI score at initial admission was analysed using logistic regression analyses for its performance in predicting testicular involvement with FG. Receiver operating characteristics (ROC) curves and the area under the receiver operating characteristic curve (AUROC) were used to evaluate its discriminating ability.ResultsThe SIARI score had modest performance for diagnosing testicular involvement in FG patients, with ROC analysis showing an AUROC value of 0.83 (p < 0.001). With a SIARI cut-off score of ≥ 3, the sensitivity was 90% and the specificity was 68%. For a SIARI cut-off score of ≥ 5, the sensitivity was 40% and the specificity was 97%.ConclusionsThe ability of the SIARI score to discriminate FG with testicular involvement is modest. The SIARI score should be employed cautiously as a routine diagnostic tool for the prediction of testicular involvement in FG at the initial admission. More research is needed to develop a better understanding of the relationship between the SIARI score and testicular involvement in FG.

Volumetric computed tomography measurements as predictors for outcomes in a cohort of Fournier's gangrene patients.

This study evaluates the prognostic value of CT findings, including volumetric measurements, in predicting outcomes for patients with Fournier gangrene (FG), focusing on mortality, ICU admission, hospital stay length, and healthcare costs. A retrospective study was conducted on 38 FG patients who underwent CT scans before surgical debridement. We analyzed demographic data, CT volumetric measurements, and clinical outcomes using logistic and linear regression models. No single CT measurement significantly predicted mortality or ICU admission. The best model for mortality prediction included age, air volume, NSTI score, and male sex, with an AUC of 0.911. Intubation likelihood was modeled with an AUC of 0.913 using age, NSTI score, and visceral to subcutaneous fat ratio. The ICU admission model achieved an AUC of 0.677. Hospital stay was predicted by air volume (β = 0.0002656, p = 0.0505) with an adjusted R-squared of 0.1287. Air volume significantly predicted hospital costs (β = 2.859, p = 0.00558), resulting in an adjusted R-squared of 0.2165. Volumetric CT findings provide valuable prognostic insights for FG patients, suggesting a basis for informed clinical decisions and resource allocation. Further validation in larger, multi-center studies is recommended to develop robust predictive models for FG outcomes.

Capturing anatomy in computed tomography scans for genital pathology.

In this cross-sectional study,we aimed to characterize how frequently the anatomy of interest (AOI) was excluded when evaluating genital pathology using the current CT pelvis protocol recommended by the American College of Radiology and evaluate how AOI exclusion affects patient management. We retrospectively reviewed medical records, using diagnosis and CPT codes, of patients admitted with genital pathology who obtained a CT scan at our institution from July 1, 2020-April 30, 2023. Baseline patient demographics were included. Data about each index CT scan (scan obtained at our institution) were recorded and assessed for exclusion of the AOI. Statistical analysis was performed to determine the rate of AOI exclusion and to compare patient management between patients with AOI excluded versus those without AOI exclusion. 113 presentations for genital pathology included an index CT scan and were included for analysis. Patients were primarily men (98%) with a mean age of 53.1 years (SD 13.9). The most common diagnoses were Fournier's gangrene (35%), scrotal abscess (22%) and unspecified infection (19%). 26/113 scans (23%) did not capture the entire AOI. When the AOI was missed during the index scan, there was a higher rate of obtaining additional scans (38% vs. 21%), but a similar rate of intervention (77% vs. 63%) when compared to index scans that captured the entire AOI.35 scans (31%) had protocol-extending instructions;index scans that captured the entire AOI were more likely to have specific protocol-extending instructions(38% vs. 8% p < 0.01). Creating a specific CT protocol for genital pathology could decrease the amount of inappropriate irradiation and improve AOI capture rates without relying on specific request for protocol deviation.

Fournier's gangrene with abdominal wall cellulitis probably caused by animal microbiota after insulin injection.

Fournier's gangrene with abdominal wall cellulitis probably caused by animal microbiota after insulin injection.

Outcome of Fournier's gangrene in relation to Fournier Gangrene Severity Index (FGSI) score.

Fournier's gangrene is a rapidly progressive necrotizing fasciitis, involving perineum mainly. The purpose of the study is to evaluate etiology, treatment, and outcome of Fournier's gangrene so that such type patient's management can be done by primary care physicians with best outcomes. This was a retrospective study including 156 patients, treated for Fournier's gangrene, between Jan 2012 and Dec 2018. The outcome and prognosis of Fournier's gangrene were reviewed. The mean age and mode among survival patients were 47.94 ± 14.9 and 60 years, and the mean age and mode in nonsurvival patients was 47.64 ± 15.9 and 65 years. The most common predisposing factor was diabetes mellitus (n = 49, 31.4%) having mortality rate was 9% (n = 14). Most common causative bacteria were E. coli. In the study, the survival rate was 100% in patients having Fournier Gangrene Severity Index (FGSI)≤3. As FGSI increased from 3, the mortality rate increased. Fournier gangrene is a surgical emergency. Early diagnosis, serial surgical debridement, and broad-spectrum antibiotics decrease the mortality and morbidity of patients. The sensitivity and specificity of FGSI determine the prognosis of Fournier's gangrene. FGSI is a simple method to know the severity and prognosis.

Development of Fournier's gangrene after chemotherapy for the recurrence of testicular cancer despite the absence of anorectal lesions: A case report.

Fournier's gangrene usually occurs when a specific bacterium intrudes into soft tissue, causing a wound or tumor. We encountered a patient with Fournier's gangrene due to severe myelosuppression after chemotherapy, despite the absence of an initial lesion on the anus and rectum. A 54-year-old man with a left testicular cancer recurrence had undergone chemotherapy. He had asymptomatic hepatitis and high hepatitis B virus DNA levels, which were normalized by administering tenofovir alafenamide fumarate. Twelve days after the start of chemotherapy, he complained of severe pain around the anus. The following day, he went into septic shock. Visual inspection showed dark purple skin discoloration on the left side of the anus. Laboratory data revealed severe neutropenia. Computed tomography showed a high density of soft tissue on the left side of the anus and gas bubbles in the left femoral ring. We diagnosed the patient with Fournier's gangrene due to a severe immunosuppressive state resulting from chemotherapy. We emergently removed necrotic tissue to the fullest extent possible. However, because the patient was in severe sepsis status, careful management in the intensive care unit was required for 32 days. After the first emergency operation, we performed several additional excisions. Finally, 391 days after the initial surgery, the patient was discharged from our hospital. The tumor has not recurred, and he is under outpatient observation in the urology department. Fournier's gangrene should be considered in patients who are in a severe myelosuppressive state due to chemotherapy, have normal hepatitis B virus DNA levels but high hepatitis B surface antigen after tenofovir administration, complain of severe pain in the perianal area, and have a dark purple skin discoloration around the anus, despite having no initial anorectal lesions.

Treatment of Fournier's gangrene with "firebreak" drainage based on skin preservation

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.