Peri-operative SARS-CoV-2 infection increases postoperative mortality. The aim of this study was to determine the optimal duration of planned delay before surgery in patients who have had SARS-CoV-2 infection. This international, multicentre, prospective cohort study included patients undergoing elective or emergency surgery during October 2020. Surgical patients with pre-operative SARS-CoV-2 infection were compared with those without previous SARS-CoV-2 infection. The primary outcome measure was 30-day postoperative mortality. Logistic regression models were used to calculate adjusted 30-day mortality rates stratified by time from diagnosis of SARS-CoV-2 infection to surgery. Among 140,231 patients (116 countries), 3127 patients (2.2%) had a pre-operative SARS-CoV-2 diagnosis. Adjusted 30-day mortality in patients without SARS-CoV-2 infection was 1.5% (95%CI 1.4-1.5). In patients with a pre-operative SARS-CoV-2 diagnosis, mortality was increased in patients having surgery within 0-2 weeks, 3-4 weeks and 5-6 weeks of the diagnosis (odds ratio (95%CI) 4.1 (3.3-4.8), 3.9 (2.6-5.1) and 3.6 (2.0-5.2), respectively). Surgery performed ≥ 7 weeks after SARS-CoV-2 diagnosis was associated with a similar mortality risk to baseline (odds ratio (95%CI) 1.5 (0.9-2.1)). After a ≥ 7 week delay in undertaking surgery following SARS-CoV-2 infection, patients with ongoing symptoms had a higher mortality than patients whose symptoms had resolved or who had been asymptomatic (6.0% (95%CI 3.2-8.7) vs. 2.4% (95%CI 1.4-3.4) vs. 1.3% (95%CI 0.6-2.0), respectively). Where possible, surgery should be delayed for at least 7 weeks following SARS-CoV-2 infection. Patients with ongoing symptoms ≥ 7 weeks from diagnosis may benefit from further delay.

Although both techniques provided good results during the early period, the Bascom cleft lift procedure is a reliable technique that provides shorter operation duration and better quality of life during the early postoperative period.

Fournier's gangrene is a rare but highly mortal infectious disease characterised by fulminant necrotising fasciitis involving the genital and perineal regions. The objective of this study is to analyse the demographics, clinical feature and treatment approaches as well as outcomes of Fournier's gangrene. Data were collected retrospectively from medical records and operative notes. Patient data were analysed by demographics, aetiological factors, clinical features, treatment approaches and outcomes. Twelve patients (five female and seven male) were enrolled in this study. The most common aetiology was perianal abscess (41·6%). Wound cultures showed a mixture of microorganisms in six (50%) patients. For faecal diversion, while colostomy was performed in six cases (50%), Flexi-Seal was used in two cases (16·6%). In four patients (33·4%), no faecal diversion was performed. Negative pressure wound therapy (NPWT) system was effective in the last four patients (33·4%). The mean hospitalisation period in patients who used NPWT was 18 days, while it was 20 days in the others. NPWT in Fournier's gangrene is a safe dressing method. It promotes granulation formation. Flexi-Seal faecal management is an alternative method to colostomy and provides protection from its associated complications. The combination of two devices (Flexi-Seal and NPWT) is an effective and comfortable method in the management of Fournier's gangrene in appropriate patients.

The aim of this study was to investigate the possible protective role of antioxidant treatment with syringic acid (SA) on L-arginine-induced acute pancreatitis (AP) using biochemical and histopathologic approaches. A total of 30 rats were divided into 3 groups. The control group received normal saline intraperitoneally. The AP group was induced by 3.2 g/kg body weight L-arginine intraperitoneally, administered twice with an interval of 1 hour between administrations. The AP plus SA group, after having AP induced by 3.2 g/kg body weight L-arginine, was given SA (50 mg kg À1 ) in 2 parts within 24 hours. The rats were killed, and pancreatic tissue was removed and used in biochemical and histopathologic examinations. Compared with the control group, the mean pancreatic tissue total oxidant status level, oxidative stress index, and lipid hydroperoxide levels were significantly increased in the AP group, being 30.97 6 7.13 (P , 0.05), 1.76 6 0.34 (P , 0.0001), and 19.18 6 4.91 (P , 0.01), respectively. However, mean total antioxidant status and sulfhydryl group levels were significantly decreased in the AP group compared with the control group, being 1.765 6 0.21 (P , 0.0001) and 0.21 6 ), peroxynitrite, and other nitrates, whereas carbon-centered molecules are rather complex in terms of their chemical structure and generally are produced in the xenobiotic metabolism.2 Normally, there is a delicate balance between ROS and RNS production and tissue concentrations of antioxidants in the body. This balance is related to the rate of total antioxidant status (TAS) to total oxidant status (TOS), as determined by the oxidative stress index (OSI). ROS are produced both normally through the electron transfer chain system of the mitochondria and in excessive numbers in various conditions that increase energy (ATP) demand. The latter may include, among other factors, biologic factors and exposure to heat and certain chemicals and toxins. [3][4][5] ROS plays an important role in the pathogenesis of AP, and there is also a correlation between the production of ROS and the severity of AP. The detrimental effects of ROS and RNS are mediated by their direct actions on biomolecules, such as lipids, proteins, and DNA, and the activation of proinflammatory signal cascades, which subsequently lead to the activation of immune responses. 2The dietary plant polyphenolic compounds were shown to have beneficial effects in preventing oxidative stress, inhibiting the production of free radicals and the formation of lipid peroxidation.Scientific interest in phenolic compounds has been stimulated because of their anti-inflammatory, antimutagenic, and anticarcinogenic properties. They have antioxidant activity mainly due to their redox properties, which allow them to act as reducing agents, hydrogen donors, free radical scavengers, metal chelators, and modulators of enzymatic activity, thereby preventing a lot of diseases, including diabetes mellitus, hypertension, atherosclerosis, and cancer. 6,7 Antioxidants are compounds that, even when presen...

SARS-CoV-2 has been associated with an increased rate of venous thromboembolism in critically ill patients. Since surgical patients are already at higher risk of venous thromboembolism than general populations, this study aimed to determine if patients with peri-operative or prior SARS-CoV-2 were at further increased risk of venous thromboembolism. We conducted a planned sub-study and analysis from an international, multicentre, prospective cohort study of elective and emergency patients undergoing surgery during October 2020. Patients from all surgical specialties were included. The primary outcome measure was venous thromboembolism (pulmonary embolism or deep vein thrombosis) within 30 days of surgery. SARS-CoV-2 diagnosis was defined as peri-operative (7 days before to 30 days after surgery); recent (1-6 weeks before surgery); previous (≥7 weeks before surgery); or none. Information on prophylaxis regimens or pre-operative anti-coagulation for baseline comorbidities was not available. Postoperative venous thromboembolism rate was 0.5% (666/123,591) in patients without SARS-CoV-2; 2.2% (50/2317) in patients with peri-operative SARS-CoV-2; 1.6% (15/953) in patients with recent SARS-CoV-2; and 1.0% (11/1148) in patients with previous SARS-CoV-2. After adjustment for confounding factors, patients with peri-operative (adjusted odds ratio 1.5 (95%CI 1.1-2.0)) and recent SARS-CoV-2 (1.9 (95%CI 1.2-3.3)) remained at higher risk of venous thromboembolism, with a borderline finding in previous SARS-CoV-2 (1.7 (95%CI 0.9-3.0)). Overall, venous thromboembolism was independently associated with 30-day mortality ). In patients with SARS-CoV-2, mortality without venous thromboembolism was 7.4% (319/4342) and with venous thromboembolism was 40.8% (31/76). Patients undergoing surgery with peri-operative or recent SARS-CoV-2 appear to be at increased risk of postoperative venous thromboembolism compared with patients with no history of SARS-CoV-2 infection. Optimal venous thromboembolism prophylaxis and treatment are unknown in this cohort of patients, and these data should be interpreted accordingly.

Warfarin-dependent spontaneous intramural hematoma of the small intestine is a rare complication. The first symptom is usually abdominal pain, frequently accompanied by nausea and vomiting. In some cases, concomitant gastrointestinal bleeding might be seen. Ultrasonography and computed tomography are the most useful radiographic methods for the diagnosis of an intramural hematoma of the intestines. Although it is usually treated conservatively, surgical intervention is required in cases involving active bleeding, intestinal obstruction, or acute abdominal symptoms. Here we present two patients who were treated surgically. Both patients had intestinal obstruction and ischemia, and one had concomitant gastrointestinal bleeding and intussusception due to an intramural hematoma.

No abstract

Cytokines are multifunctional polypeptides synthesized by different body cells. They have clinical significance in terms of disease diagnosis, treatment and prevention. Cytokines TNF-α and IL-6 play an important role in the growth and differentiation of cells.Vascular Endothelial Growth Factor (VEGF) is excessively produced in epithelial, mesenchymal, and particularly in tumor cells. Studies have shown that the increased serum concentrations of IL-6, TNF-α, VEGF are strongly associated with colorectal cancer  and directly with the clinical stage of the disease. This can be used to diagnose cancer and to identify patients with a bad prognosis who can avail themselves of a more aggressive treatment. The present study investigated the role of cytokines in the development of cancer by comparing preoperative serum cytokine levels of patients suffering from colorectal cancer with those of the healthy control group. The prognostic significance of the data obtained has also been evaluated. For this purpose, IL-6, TNF-α and VEGF levels in 60 serums, 30 preoperatively taken from patients with colorectal cancer and 30 from a healthy control group at Çanakkale Onsekiz Mart University General Surgery Clinic, were determined by ELISA kits. The statistical analyses of the obtained data were evaluated on SPSS, a statistical package program. In this study, no significant difference was obtained between the mean scores concerning the IL-6 and VEGF serums of the colorectal cancer and healthy group (p>.05). But a statistically significant decrease was observed in the TNF-α serum level of the colorectal cancer group in comparison with the control group (p= .016; p < .05).