Digital Thermal Necrosis Resulting in Amputation After Removing a Tungsten Carbide Ring With a High-Speed Metal Burr: A Case Report.

CASE: A 41-year-old man removed a tungsten carbide ring from his left index finger by cutting it off with a high-speed metal burr. The patient presented two days later with a pink and perfused left index finger with circumferential dry gangrene along the area of the ring, active flexor and extensor tendon excursion, and decreased sensation distally. Within 24 hours, the wound developed into wet gangrene and diffuse cyanosis requiring amputation. CONCLUSION: After reviewing previously documented methods to remove tungsten carbide rings, the authors conclude clinicians should be cognizant of the potential complications associated with the use of a high-speed metal burr.

The Use of CECT in the Diagnosis of Intestinal Obstruction: A Case of Difficult Diagnosis in a Strangulated Left Femoral Hernia.

ABSTRACT: A femoral hernia is an uncommon and acquired hernia in the groin. Its incidence in adults is 2%-8% of all abdominal wall hernias, and it has a female-to-male ratio of 1.8:1. It is usually found in elderly patients and is associated with increased morbidity due to delays in diagnosis leading to a high incidence of incarceration and strangulation. Accurate preoperative diagnosis of femoral hernia is challenging, especially in obese patients in whom a small femoral hernia can be hidden under the groin fat. Unlike an inguinal hernia, it rarely reduces on its own and if asymptomatic and small, is often unnoticed by the elderly obese patient. Femoral hernia is often unsuspected and overlooked in males as it is predominant among females. Delay in diagnosis can lead to intestinal gangrene and high morbidity. We present a case of an incarcerated left femoral hernia in an elderly obese male who presented with acute intestinal obstruction. He was managed with resection of the gangrenous segment and double barrel ileostomy. Although uncommon in males, a femoral hernia has a high incidence of strangulation, and therefore should always be ruled out as a cause of acute intestinal obstruction in elderly patients. Therefore, never forget to examine the groin in case of intestinal obstruction.

Puerperal septic shock complicated with symmetrical peripheral gangrene: A case report.

RATIONALE: Puerperal sepsis is a life-threatening condition caused by infection that can rapidly progress to multisystem infection and toxin-mediated shock. Symmetrical peripheral gangrene is defined as symmetrical distal ischemic damage in two or more sites in the absence of major vascular occlusive disease. The syndrome is devastating and rare. In this study, we introduce a case of puerperal septicemia complicated by symmetrical peripheral gangrene. PATIENT CONCERNS: A 23-year-old woman delivered a live female infant vaginally after cervical balloon dilatation at 39 weeks of gestation. Persistent hyperthermia developed on the first postpartum day. After experiencing ventricular fibrillation, acute liver failure, and acute pulmonary edema, she developed blackened extremities on the 5th postpartum day. DIAGNOSES: Puerperal septicemia complicated by symmetrical peripheral gangrene. INTERVENTIONS: Upon transfer to our hospital, the patient was enrolled in the intensive care unit and underwent anti-infective and amputation surgery. OUTCOMES: After the surgery, the patient recovered well and was successfully discharged from the hospital. LESSONS: Early detection and timely treatment is the best way to reduce the mortality and sequelae of puerperal sepsis. Physicians should be alert to the possibility of comorbid symmetrical peripheral gangrene when sepsis patients present with hepatic impairment.

Ileo-ileal knot causing acute gangrenous small bowel obstruction: a case report.

BACKGROUND: Ileo-ileal knotting is a very rare cause of small bowel obstruction, and only a few reports have been published. Small bowel obstruction (SBO) is one of the most common emergency surgical conditions that require urgent evaluation and treatment and is one of the leading causes of emergency surgical admission. There are many causes of SBO that are known in general surgical practice, and these causes are different in the developing and developed worlds. CLINICAL PRESENTATION: In this article, we present a case of acute gangrenous SBO secondary to ileo-ileal knotting in a 37-year-old Ethiopian female patient after she presented with severe abdominal cramp, vomiting, and abdominal distension of 4 hours duration. The patient was operated on intraoperatively; she had gangrenous small bowel obstruction caused by ileo-ileal knotting. Later, the patient was discharged and improved after 12 days of hospital stay. CONCLUSION: Ileo-ileal knotting should always be considered in the differential diagnosis of acute small-bowel obstruction. The diagnostic difficulty and the need for urgent treatment of this condition to yield optimal results are discussed.

Prenatal Torsion of Radial Polydactyly: A Gangrenous Mass at the Base of the Thumb.

A patient was born with a mass at the base of the thumb approximately 1.5 cm in diameter on the radial side of the fingers. The mass had globular swelling filled with hemorrhagic fluid and was dark red. X-rays and histology of the excised specimen suggested the diagnosis of gangrene and torsion of polydactyly. Prenatal torsion of polydactyly is not a common occurrence; moreover, prenatal torsion of polydactyly has only been found in ulnar polydactyly. Our case is a novel case of radial polydactyly that was gangrenous at birth owing to prenatal torsion. Diagnosing such a mass at the base of the thumb is important.

[Venous gangrene of small intestine following coronavirus infection (SARS-COVID-19)]. / Venoznaya gangrena tonkoi kishki na fone koronavirusnoi infektsii (SARS-COVID-19).

The pandemic of a new coronavirus infection has made certain adjustments to modern emergency medicine. Systemic endothelial dysfunction following COVID-19 largely determines hemostatic disorders. Numerous studies revealed that intense platelet adhesion followed by platelet aggregates in COVID-19 patients and functional disorders of fibrinolysis system are combined with activation and severe endothelial dysfunction. The last one inevitably leads to thrombosis and adverse vascular events. There are a lot of studies devoted to deep vein thrombosis and fatal massive pulmonary embolism under COVID-19 infection. However, there are no descriptions of mesenteric thrombosis followed by intestinal wall necrosis. Our experience is based on the treatment and follow-up of 14 patients with venous gangrene of small intestine under COVID-19-induced severe endothelial dysfunction. We present a 40-year-old man with coronavirus infection complicated by ileum gangrene and subsequent favorable outcome.

Polycythemia as an Underlying Cause of Digital Gangrene: A Rare and Unusual Case Presentation.

Digital gangrene is frequently encountered in patients who have diabetes with peripheral vascular compromise, with or without superimposed infection. Preoperative laboratory values and radiographic images are important to determine a proper course of action. Equally important is a thorough history taking to confirm or rule out systemic entities and preexisting conditions that can aggravate or predispose one to the development of digital gangrene. A patient with diabetes presented with a rare and unusual case of digital gangrene, as he clinically had strong pedal pulses. Preoperative workup revealed a suspicion of polycythemia, which was subsequently confirmed. The patient underwent several days of phlebotomy until his hemoglobin and hematocrit levels were brought down to optimized levels before a digital amputation was performed. He went on to heal uneventfully, and he is currently being closely followed by oncology/hematology colleagues with periodic phlebotomy.

Bilateral Digital Ischemia Secondary to Heparin-Induced Thrombocytopenia with Subsequent Limb Salvage: A Case Study.

Heparin-induced thrombocytopenia (HIT) is a prothrombotic state caused by the buildup of platelet factor 4 antibodies with decreased platelet count caused by heparin therapeutic or prophylactic therapy. It is important to detect this complication, especially in critically ill patients and cardiac patients. Detection of HIT can be demonstrated by positive antibodies in a HIT panel. Based on clinical and laboratory findings, heparin use should be discontinued with immediate transition to alternative anticoagulation therapies. Thromboembolic events can be an adverse effect of HIT and can cause local tissue necrosis, especially in the lower extremity. This case is a retrospective medical record review of a 52-year-old man who was initially admitted as an outpatient for coronary artery bypass grafting and mitral valve replacement who developed digital gangrene from HIT. This case emphasizes the rare adverse effects of HIT and the need for timely consultation for surgical treatment of limb ischemia/gangrene.

First Global Report of Catastrophic Results Due to Internal Herniation of Roux Limb in the Space Between the Gastric Pouch and Band: a Series of 3 Cases of Banded Roux-en-Y Gastric Bypass (BRYGB).

BACKGROUND: Banded Roux-en-Y gastric bypass (BRYGB) is associated with complications known with the bypass along with specific complications related to the band. Roux-limb gangrene, due to herniation between the gastric pouch and band, however, has no mention in literature. METHODS: We report this potentially fatal complication of BRYGB and its management in a series of 3 patients. RESULTS: All 3 patients were women, 35-45 years, with a BRYGB (roux limb-150 cm, biliopancreatic limb-100 cm) using a MiniMizer or a Fobi ring with 2-point fixation to the gastric pouch 2 cm above the gastrojejunostomy. All patients presented 3-4 years post-BRYGB, with an average total body weight loss (TWL%) of 41.28%. To discuss video of a single case, a 35-year-old female presented with abdominal pain, hematemesis and signs of abdominal tenderness and guarding. X-Ray abdomen showed distended small bowel loops and CT-scan revealed ischemic small bowel loops with free fluid. Diagnostic laparoscopy showed alimentary/roux limb (AL) gangrene, from the gastrojejunostomy to the jejunojejunostomy. The entire AL had herniated between the gastric pouch and band which had formed an obstructive ring around the herniated bowel loop and led to compromise of blood supply and gangrene. Resection of gangrenous bowel with reversal of BRYGB was done. CONCLUSION: Early diagnosis and timely management may save a patient from gangrene. It also raises questions: Is a 2-point fixation of the band to the gastric pouch insufficient? Does a longer roux limb make it prone to herniating in the space between the gastric pouch and band?

A Rare Case Of Type II Amyand's Hernia.

Amyand's hernia represents an inguinal hernia containing an appendix within the hernia sac. This extremely rare condition occurs in approximately 1% of all inguinal hernias. This report describes the case of an 84-year-old male who presented with a right inguinal mass that intraoperatively turned out to be Amyand's hernia type-II with a gangrenous and perforated appendix. An appendectomy and peritoneal lavage were performed, followed by a hernioplasty where a modified Bassini repair was used. The patient fully recovered, and was discharged from the hospital on the fourth day. A non-reducible inguinal hernia containing a perforated appendix is a very rare emergency that requires immediate intervention to prevent abdominal sepsis. Therefore, while examining an inguinal hernia, the possibility of Amyand's hernia should always be considered.

Development of a scoring model based on objective factors to predict gangrenous/perforated appendicitis.

BACKGROUND: The mortality rate of gangrenous/perforated appendicitis is higher than that of uncomplicated appendicitis. However, non-operative management of such patients is ineffective. This necessitates their careful exam at presentation to identify gangrenous/perforated appendicitis and aid surgical decision-making. Therefore, this study aimed to develop a new scoring model based on objective findings to predict gangrenous/perforated appendicitis in adults. METHODS: We retrospectively analyzed 151 patients with acute appendicitis who underwent emergency surgery between January 2014 and June 2021. We performed univariate and multivariate analyses to identify independent objective predictors of gangrenous/perforated appendicitis, and a new scoring model was developed based on logistic regression coefficients for independent predictors. Receiver operating characteristic (ROC) curve analysis and the Hosmer-Lemeshow test were performed to assess the discrimination and calibration of the model. Finally, the scores were classified into three categories based on the probability of gangrenous/perforated appendicitis. RESULTS: Among the 151 patients, 85 and 66 patients were diagnosed with gangrenous/perforated appendicitis and uncomplicated appendicitis, respectively. Using the multivariate analysis, C-reactive protein level, maximal outer diameter of the appendix, and presence of appendiceal fecalith were identified as independent predictors for developing gangrenous/perforated appendicitis. Our novel scoring model was developed based on three independent predictors and ranged from 0 to 3. The area under the ROC curve was 0.792 (95% confidence interval, 0.721-0.863), and the Hosmer-Lemeshow test showed a good calibration of the novel scoring model (P = 0.716). Three risk categories were classified: low, moderate, and high risk with probabilities of 30.9%, 63.8%, and 94.4%, respectively. CONCLUSIONS: Our scoring model can objectively and reproducibly identify gangrenous/perforated appendicitis with good diagnostic accuracy and help in determining the degree of urgency and in making decisions about appendicitis management.

Posterior Approach to the Popliteal to Peroneal Bypass.

Critical limb ischemia (CLI) is a clinical syndrome related to peripheral artery disease (PAD) that is marked by ischemic rest pain or tissue loss such as nonhealing ulcers or gangrene. Without revascularization CLI carries a 30-50% risk of major limb amputation within 1 year. Initial surgical revascularization is recommended for patients with CLI who have a greater than 2-year life expectancy. We present the case of a 92-year-old male with severe peripheral artery disease with gangrene of bilateral toes who underwent right popliteal to distal peroneal bypass via the posterior approach using ipsilateral reversed GSV. The posterior approach provides excellent exposure and should be considered in distal surgical revascularization where the popliteal artery serves as inflow and distal peroneal artery as target outflow vessel.

A new model for prediction of bowel gangrene in sigmoid volvulus.

BACKGROUND: Sigmoid volvulus is a pathology that can be mortal because it is frequently encountered in elderly patients. In case of bowel gangrene, mortality and morbidity increase further. We planned a retrospective study, in which the effectiveness of the model was evaluated by creating a model that aims to predict whether intestinal gangrene is present in patients with sigmoid volvulus only by blood tests and thus to quickly guide treatment methods. METHODS: In addition to demographic data such as age and gender, laboratory values such as white blood cell, C-reactive protein (CRP), lactate dehydrogenase (LDH), potassium, and colonoscopic findings and whether there was gangrene in the colon during the operation were evaluated retrospectively. In the analysis of the data, independent risk factors were determined by univariate and multivariate logistic regression analyzes as well as Mann-Whitney U and Chi-square tests. Receiver operating characteristic (ROC) analysis was performed for statistically significant continuous numerical data, and cutoff values were determined and Malatya Volvulus Gangrene Model (MVGM) was created. The effectiveness of the created model was again evaluated by ROC analysis. RESULTS: Of the 74 patients included in the study, 59 (79.7%) were male. The median age of the population was 74 (19-88), and gangrene was detected in 21 (28.37%) patients at surgery. In univariate analyzes, leukocytes <4000/mm3 and >12000/mm3 (OR: 10.737; CI 95%: 2.797-41.211, p=0.001), CRP ≥0.71 mg/dl (OR: 8.107 CI 95%: 2.520-26.082, p<0.0001), potassium ≥3.85 mmoL/L (OR: 3.889; 95% CI): 1.333-11.345, p=0.013), and LDH ≥288 U/L (OR: 3.889; CI 95%: 1.333-11.345, p=0.013), whereas, in multivariate analyzes, only CRP ≥0.71 mg/dL (OR: 3.965; CI 95%: 1.071-15.462, p=0.047) was found to be an independent risk factor for bowel gangrene. The strength of MVGM was AUC 0.836 (0.737-0.936). In addition, it was observed that the probability of bowel gangrene increased approximately 10 times if MVGM was ≥7 (OR: 9.846; 95% CI: 3.016-32.145, p<0.0001). CONCLUSION: Besides being non-invasive compared to the colonoscopic procedure, MVGM is a useful method for detecting bowel gangrene. In addition, it will guide the clinician in taking the patients with intestinal loop gangrene to emergency surgery without wasting time in the treatment steps, as well as avoiding complications that may occur during colonoscopy. In this way, we think that morbidity and mortality rates can be reduced.

Specialist access and leg amputations among Texas Medicaid patients.

Medicaid coverage among patients with peripheral artery disease (PAD) has been associated with higher rates of primary amputations. We sought to determine the relative contributions of clinical, demographic, and hospital factors to leg amputations among Texas Medicaid patients. Patient-level data were used to identify patients who underwent treatment for PAD-related foot complications in Texas. Patients were categorized into groups by insurance provider (Medicaid, Medicare, dual-enrollee, commercial, and provider network). Individual- and area-level multivariate analyses were used to find associations with primary amputation. Of 21,592 patients identified, 8.8% were covered by Medicaid, 35.3% by Medicare, 27.8% by Medicare and Medicaid, 7.3% by commercial insurance, and 20.7% by a provider network. Compared with commercially insured patients, Medicaid patients more often underwent amputation (33% v 49%), were categorized as Black or Hispanic (45% v 64%), presented with gangrene (61% v 71%), were admitted through an emergency department (61% v 73%), and were admitted to a safety net hospital (3% v 16%). They had lower relative rates of outpatient evaluation (1.33 v 0.55) and their hospitalizations were less centralized (Gini coefficient 0.43 v 0.39) (P < .001 for all). Amputations among Medicaid patients were associated with infection and gangrene, care at safety net hospitals, rate of outpatient visits, and Black and Hispanic race, even after risk-adjustment (P < .001). Leg amputations among Medicaid patients were associated with race, disease severity, hospital characteristics, and outpatient evaluation rates, but not with provider density and location. Focusing efforts on preventative care and early outpatient referrals could help address this disparity.

Lower-extremity pressure, staging, and grading thresholds to identify chronic limb-threatening ischemia.

INTRODUCTION: The Society for Vascular Surgery Threatened Limb Classification System ('WIfI') is used to predict risk of limb loss and identify peripheral artery disease in patients with foot ulcers or gangrene. We estimated the diagnostic sensitivity of multiple clinical and noninvasive arterial parameters to identify chronic limb-threatening ischemia (CLTI). METHODS: We performed a single-center review of 100 consecutive patients who underwent angiography for foot gangrene or ulcers. WIfI stages and grades were determined for each patient. Toe, ankle, and brachial pressure measurements were performed by registered vascular technologists. CLTI severity was characterized using Global Limb Anatomic Staging System (GLASS stages) and angiosomes. Medial artery calcification in the foot was quantified on foot radiographs. RESULTS: GLASS NA (not applicable), I, II, and III angiographic findings were seen in 21, 21, 23, and 35 patients, respectively. A toe-brachial index < 0.7 and minimum ipsilateral ankle-brachial index < 0.9 performed well in identifying GLASS II and III angiographic findings, with sensitivity rates 97.8% and 91.5%, respectively. The diagnostic accuracy rates of noninvasive measures peaked at 74.7% and 89.3% for identifying GLASS II/III and GLASS I+ angiographic findings, respectively. The presence of medial artery calcification significantly diminished the sensitivity of most noninvasive parameters. CONCLUSIONS: The use of alternative noninvasive arterial testing parameters improves sensitivity for detecting PAD. Abnormal noninvasive results should suggest the need for diagnostic angiography to further characterize arterial anatomy of the affected limb. Testing strategies with better accuracy are needed.

Effect of leukocyte-platelet fibrin-rich wound reconstruction followed by full-thickness skin grafting in the treatment of diabetic foot Wagner grade 4 ulcer gangrene (toe area).

This study investigated the effect of L-PRF on promoting full-thickness skin grafting for the treatment of diabetic foot ulcer wounds and attempted to characterize the mechanism. In a retrospective study, we centrifugated 10-20 ml of venous blood at 1006.2 g for 20 min. The fibrin clot between the top oligocellular plasma layer and the bottom erythrocyte layer was extracted and directly used, without compression, to cover the wound after debridement. Patients who received L-PRF before skin grafting underwent surgery earlier than patients in the control group. Skin necrosis occurred in 7 patients (28%) in the L-PRF group and 16 (64%) in the control group. The difference was statistically significant, P < .05. The postoperative infection rate in the control group (56%) was significantly higher than that in the L-PRF group (24%), P < .05. During a mean follow-up of 1 year, ulcer recurrence occurred in 9 patients (36%) in the control group compared with 4 patients (16%) in the L-PRF group, P < .05. The final amputation rate was also higher in the control group (48%) than in the L-PRF group (20%). The difference is statistically significant, P < .05. The Maryland scale score and SF-36 score of the two groups of patients after treatment were significantly better than those before treatment, and the difference was statistically significant (P < .05). The L-PRF group (94.80 ± 4.14) had better foot scores at the last follow-up after treatment than the control group (88.84 ± 5.22) (P < .05). The results showed that L-PRF played a positive role in the treatment of Wagner grade 4 ulcer gangrene with free full-thickness skin grafts.

What is the context?● Diabetic foot is a serious complication in the later stage of the disease course of diabetic patients. The incidence rate is increasing year by year. In severe cases, it can lead to amputation or even death.● For diabetic ulcer wounds, dressings such as L-PRF or autologous fat are often used in the initial stage to speed up wound healing. For advanced wounds, especially patients with local tissue gangrene, simple wound dressings cannot meet the needs of wounds. People often use skin flaps or different types of skin grafts to treat advanced wounds.● Flap or skin grafting has been shown to be effective, but because of the patient's own neurovascular injury and infection, the rate of graft necrosis and ulcer recurrence is extremely high. What is new?● This study discusses the treatment of advanced wounds in diabetes. After thorough debridement and before skin grafting, we first covered the wound with L-PRF and observed the wound condition. Studies have shown that the use of L-PRF can allow the original poor wound to be reconstructed: the content of growth factors and growth-related cells is increased, blood circulation is improved and granulation tissue growth, bone and tendon exposure is improved, and infection is controlled. What is the impact?● This study provides evidence that using L-PRF to reconstruct wounds can greatly shorten the preparation time for elective surgery. Reconstructed wounds can better accept free skin grafts, and the incidence of postoperative complications and amputation (particularly, toe amputation) is also lower.