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S. Delibegović

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Andrew W Kirkpatrick, F. Coccolini, M. Tolonen, Sam F. Minor, F. Catena, Emanuel Góis, C. Doig, Michael D. Hill, L. Ansaloni et al.

M. Sartelli, M. Boermeester, M. Caínzos, F. Coccolini, S. D. de Jonge, K. Raşa, E. Dellinger, D. McNamara, D. Fry et al.

Surgical site infections (SSIs) are the most common adverse event occurring in surgical patients. Optimal prevention of SSIs requires the bundled integration of a variety of measures before, during, and after surgery. Surgical antibiotic prophylaxis (SAP) is an effective measure for preventing SSIs. It aims to counteract the inevitable introduction of bacteria that colonize skin or mucosa into the surgical site during the intervention. This document aims to guide surgeons in appropriate administration of SAP by addressing six key questions. The expert panel identifies a list of principles in response to these questions that every surgeon around the world should always respect in administering SAP.

Tarik Bujaković, Ema Kacar Bujakovic, S. Delibegović, A. Vujadinović

Stress fractures of the femur are relativly uncommon. They can mimic other pathological entities, such as tumors, and can be the sourse of some diagnostic problems. The cause of stress fractures is often multifactorial and various modifiable and non-modifiable factors have been proposed to play a role: ethicity, high bone turnover, vitamin D insufficiency, nicotine and alcohol abuse, steroid use, low bone density, low adult weight, anorexia, or bisphosphonate therapy. Hence they might be missed in other groups of patients that present with anterior thigh pain without history of significant trauma. We report a stress fracture that mimicked tumoral process of the long bone, but patho-histological analysis revealed that it was a non-specific inflammation. Symptoms often mislead the clinicians, and because they mimic other conditions, a high index of suspicion/indication is required to uncover the true diagnosis. The importance of early detection and management needs to be conveyed, with a view to prevent complete fracture and bonedisplacement or, asin our reported case, to avoid un-necessery exploration. 

S. Delibegović, M. Delibegović, M. Kati̇ca, M. Obhodžaš, Muhamed Ođuz

Aim Clips in neurosurgery are made of titanium alloys, which reduce artifacts on computed tomography (CT). The radiological advantage of plastic clips on the CT image was demonstrated when they were placed in an inter-hemispherical position at an angle of 90º. The aim of this study was to investigate the behaviour of the clip placed at different angles. Methods Sixty heads of domestic pigs were divided into two groups, in group 1 a titanium clip was placed to the interhemispheric position at an angle of 90º, 45º, 0º, ten heads for each angle. In group 2 a plastic clip was placed in the same way. CT scan of the brain was performed for each angle. The size of the density and possible artifact were measured on CT. Results The size of the titanium clip ranged from 17.05 mm at an angle of 0º in the axial plane to 91.47 mm at an angle of 0º in the sagittal plane. The average size of the plastic clip ranged from 6.4 mm at an angle of 0º in the axial plane to 23.22 mm in an angle of 90º in the sagittal plane. Artifacts were observed only in the titanium clip. Conclusion Plastic clips have shown radiological advantages over titanium clips in the CT image. The average density size of the plastic clip in all planes and all angles was smaller than the titanium clip.

B. De Simone, F. Abu-Zidan, E. Chouillard, S. Di Saverio, M. Sartelli, M. Podda, C. Gomes, Ernest E. Moore, S. Moug et al.

J. Glasbey, T. Abbott, A. Ademuyiwa, A. Adisa, E. Alameer, S. Alshryda, A. Arnaud, B. Bankhead-Kendall, M. Chaar et al.

SUMMARY Antibiotic therapy is indicated during acute cholecystitis. However, in the treatment of uncomplicated cholelithiasis, prophylactic use of antibiotics is controversial. Microbiological and laboratory data are the basis for the choice of antibiotic treatment. However, monitoring and updating local antibiograms is important because they ensure effective therapy in the given clinical environment. The study included 110 consecutive patients who underwent laparoscopic cholecystectomy, divided into the group of uncomplicated cholelithiasis (n=60) and the group of acute cholecystitis (n=50). Preoperative data included age, sex, body mass index, leukocytes, C-reactive protein, and ultrasound examination. Bile samples for bacteriological testing were obtained under aseptic conditions during the surgery. Cultures were evaluated for aerobic, anaerobic and fungal organisms using routine tests. After the surgery, gallbladder specimens were sent for histopathological examination. In the group of uncomplicated cholelithiasis, 6/60 positive samples were found, and in the group of acute cholecystitis, there were 25/50 positive microbiological findings. Citrobacter sp. and Enterococcus faecalis predominated in the group of uncomplicated cholelithiasis, and Escherichia coli, Enterococcus faecalis, Proteus mirabilis and Citrobacter sp. in the group of acute cholecystitis. Antibiotics were administered to 49/50 patients with acute cholecystitis and to 32/60 patients with uncomplicated cholelithiasis. Cefazolin was the most frequently used antibiotic and also the most resistant antibiotic. To conclude, the administration of antibiotics in elective patients is not justified. The results of this study indicate that third-generation cephalosporin or ciprofloxacin + metronidazole should be administered in mild and moderate acute cholecystitis, and fourth-generation cephalosporin + metronidazole in severe acute cholecystitis in this local setting. The appropriate use of antibiotic agents is crucial and should be integrated into good clinical practice and standards of care.

M. Sartelli, Francesco M Labricciosa, F. Coccolini, R. Coimbra, F. Abu-Zidan, L. Ansaloni, M. Al-Hasan, S. Ansari, P. Barie et al.

M. Sartelli, F. Coccolini, Y. Kluger, E. Agastra, F. Abu-Zidan, A. Abbas, L. Ansaloni, A. Adesunkanmi, G. Augustin et al.

W. U. R. S. K. A. R. D. S. K. S. D. E. M. J. C. A. J. Ahmed Bhatia McLean Khaw Baker Kamarajah Bell Nepo, W. Ahmed, S. Bhatia, K. Mclean, R. Khaw, D. Baker, S. Kamarajah, S. Bell, D. Nepogodiev et al.

Abstract Background Postoperative acute kidney injury (AKI) is a common complication of major gastrointestinal surgery with an impact on short- and long-term survival. No validated system for risk stratification exists for this patient group. This study aimed to validate externally a prognostic model for AKI after major gastrointestinal surgery in two multicentre cohort studies. Methods The Outcomes After Kidney injury in Surgery (OAKS) prognostic model was developed to predict risk of AKI in the 7 days after surgery using six routine datapoints (age, sex, ASA grade, preoperative estimated glomerular filtration rate, planned open surgery and preoperative use of either an angiotensin-converting enzyme inhibitor or an angiotensin receptor blocker). Validation was performed within two independent cohorts: a prospective multicentre, international study (‘IMAGINE’) of patients undergoing elective colorectal surgery (2018); and a retrospective regional cohort study (‘Tayside’) in major abdominal surgery (2011–2015). Multivariable logistic regression was used to predict risk of AKI, with multiple imputation used to account for data missing at random. Prognostic accuracy was assessed for patients at high risk (greater than 20 per cent) of postoperative AKI. Results In the validation cohorts, 12.9 per cent of patients (661 of 5106) in IMAGINE and 14.7 per cent (106 of 719 patients) in Tayside developed 7-day postoperative AKI. Using the OAKS model, 558 patients (9.6 per cent) were classified as high risk. Less than 10 per cent of patients classified as low-risk developed AKI in either cohort (negative predictive value greater than 0.9). Upon external validation, the OAKS model retained an area under the receiver operating characteristic (AUC) curve of range 0.655–0.681 (Tayside 95 per cent c.i. 0.596 to 0.714; IMAGINE 95 per cent c.i. 0.659 to 0.703), sensitivity values range 0.323–0.352 (IMAGINE 95 per cent c.i. 0.281 to 0.368; Tayside 95 per cent c.i. 0.253 to 0.461), and specificity range 0.881–0.890 (Tayside 95 per cent c.i. 0.853 to 0.905; IMAGINE 95 per cent c.i. 0.881 to 0.899). Conclusion The OAKS prognostic model can identify patients who are not at high risk of postoperative AKI after gastrointestinal surgery with high specificity. Presented to Association of Surgeons in Training (ASiT) International Conference 2018 (Edinburgh, UK), European Society of Coloproctology (ESCP) International Conference 2018 (Nice, France), SARS (Society of Academic and Research Surgery) 2020 (Virtual, UK).

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