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M. Rakanovic-Todic

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Purpose Educational interventions have already been shown to positively affect awareness of clinical trials (CTs) among medical students. We aimed to explore basic knowledge and attitudes about CTs among medical students in terms of educational interventions that should be reflected in their further involvement in performing CTs and their role in raising awareness about CTs. Methods This cross-sectional, self-report anonymous online survey involved undergraduate medical students of the Medical Faculty University of Sarajevo enrolled in classes held within the Department of Pharmacology and Toxicology in the academic year 2015–2016. To include all accessible subjects for better representation of the whole population, consecutive sampling was applied. Results Among 142 students who completed questionnaire, 50% of them expressed partial or full agreement with the questionnaire statement that they were satisfied with the available information on CTs. Only 38% said they would participate in a CT, 21% would not, while 41% were not sure. Positive correlations were detected for composite subscale scores of agreement with questionnaire statements conveying the student’s knowledge about ethical and legal aspects of CTs and their perception about reliability/integrity and impact of CTs on medical practice. Conclusion Students have knowledge of the basic design and ethical aspects of CTs. Positive attitudes toward the impact of CTs on medical practice were shown in students of higher years of study, where educational intervention of additional knowledge of CTs was inserted and those students expressed better knowledge of CTs. However, no significant impact was detected between knowledge and willingness to participate in CTs, irrespective of years of study, reflecting the third of students that would participate in CTs. Changes in medical curricula led to the change in students’ knowledge and attitudes regarding CTs as well as their involvement in CTs.

BACKGROUND Piriform aperture is anterior opening of the nasal cavity formed by bones of the viscerocranium and knowledge about differences between genders is important for forensic scientists, anthropologists, orthopedists, neurosurgeons and vascular surgeons. The aim of this study was to examine gender differences of piriform aperture on 3D models of human skulls originating from Bosnian population using the geometric morphometric method. MATERIALS AND METHODS The study was conducted on 211 3D models of human skulls of known gender. 3D models were obtained by laser scanning. We analyzed the gender differences of piriform aperture using geometric morphometrics method. On 3D models we marked four landmarks on piriform aperture in the Landmark editor program, after which we analyzed its gender differences in MorphoJ program. RESULTS The first PCA axis described 40.398% of total variability of piriform aperture. The greatest gender variability was present in the position of the landmark rhinion. Discriminant functional analysis of the shape and size of the piriform aperture allowed the gender determination with 64.03% accuracy for male and 70.83% accuracy for female gender. The size of the piriform aperture showed a statistically significant difference between genders. Discriminant functional analysis of the shape of the piriform aperture without affecting size enabled gender determination with 59.71% accuracy for male and 62.5% accuracy for female. CONCLUSIONS Analysis showed statistically significant differences in the shape and size of piriform aperture between genders. The accuracy for gender determination based on piriform aperture was higher in females.

Diabetes mellitus (DM) as a chronic condition is a growing global problem. Its numerous complications, including ocular diseases, affect patients’ quality and length of life. Metformin is an effective, safe, and inexpensive first-line pharma-cotherapy for type 2 diabetes (T2D). The current evidence indicates metformin’s multiple sites of action and multiple molecular mechanisms leading to its beneficial impact on metabolism, inflammation, oxidative stress, aging, as well as to its cardiovascular, neurological, bone, and antiproliferative properties. These impacts are the result of its acting on adenosine monophosphate-activated protein kinase (AMPK)-dependent and AMPK-independent pathways. Limited data suggest the protective role of metformin on microvascular ocular complications, including retinopathy, glaucoma, and age-related macular degeneration in patients with T2D. However, to confirm its mentioned protective and therapeutic effects, more large, randomized, double-blind, and placebo-controlled clinical studies are needed.

Aim To investigate the usage of chest computed tomography (CT) scan score for improvement in diagnostic and treatment efficacy of repetitive pleural effusion. Methods CT scan scoring system was used as a part of diagnostic procedures in patients with repetitive pleural effusion. Patients with at least two pleurocentesis were included in the study. Chest and abdominal ultrasound, chest x-ray, bronchoscopy, biochemical, microbiological and cytological analysis of pleural fluid specimen were performed for all patients. Results In a two-year period (during 2017-2018) 79 patients were analysed, 27 (34.17%) female and 52 (65.82%) male patients. Malignant pleural diseases were confirmed in 32 cases (40.5%), nonmalignant pleural effusions in 38 (48.1 %) cases, and nine (11.4%) patients rested without exact cause of pleural effusion after two pleurocenteses. Binary regression model showed odds ratio of 1.314; CI 95% 1.119-1.543) (p=0.00088). Confirmed malignancies with pleural effusion were in high correlation with the number of points in CT scan score. Conclusion CT scan scoring system was helpful for diagnostic and treatment decision making in patients with repetitive pleural effusion.

Objective: Inappropriate use of antibiotics is one of the major causes of resistance, and it is recognized as one of today’s most significant medical issue. Per standard of care antimicrobic treatment is not recommended for uncomplicated acute infections of the upper respiratory tract. However, despite this fact the most of antibiotics in ambulatory use are prescribed in these indications. The main objectives of this research was to evaluate the frequency of use of throat swabs in diagnostic purposes and subsequently prescribed antibiotic therapy in children with the diagnosis of bacterial tonsillitis or angina. Methods: An observational, retrospective study was conducted in the pediatric departments in of the Public Health Center of Canton Sarajevo. Data were collected from the available medical records sourced with relevant info on diagnostic swabs for upper respiratory infections and the applied treatment. Results: Data from 100 patients preschool and school age were collected. Results suggest that a significantly more frequent use of throat swabs is proven in preschool children compared to school age (p=0.008; χ²=7.100). In addition, results indicate that the prescription of beta-lactam antibiotics is preferred option of the treatment of tonsillitis and angina in whole sample. The preschoolers were more often prescribed cephalosporin antibiotics while school age children were the most frequently treated with the penicillin. Conclusion: Streptococcus is detected in 35–50% of cases of clinically diagnosed streptococcal pharyngitis, which makes the bacteriological confirmation of the agent necessary. Penicillin is recommended as the medication of the first choice for streptococcal tonsillopharyngitis. Also, the research reveals common appearance of mixed infections as a reason for preferred prescription of macrolides and cephalosporins. Keywords: tonsilopharyngitis, antibiotics, resistance

OBJECTIVE The aim was to study the association of the use of an oral antihyperglycemic agent metformin with the presence of ocular complications in patients with type 2 diabetes (T2D). METHODS Medical records were reviewed for 234 patients with diagnosed T2D. 81.2% (n=190) patients were using metformin and 18.8% (n=44) using other oral antihyperglycemic agents. Plasma glucose concentration, glycated haemoglobin, and the presence of ocular complications in patients treated with metformin were compared to those in patients treated with other oral antihyperglycemic agents. RESULTS Ocular complications occurred in 65 patients (27.8%). Patients treated with metformin had fewer ocular complications compared to patients treated with other oral antihyperglycemic agents (χ2=19.985; p<0.0001). After adjustment for gender, age, duration of T2D, serum concentration of cholesterol, smoking, body mass index and presence of other diseases, treatment with metformin decreased the odds of both glaucoma (OR=0.14, 95% CI: 0.03-0.57, p=0.006) and diabetic retinopathy (OR=0.33, 95% CI: 0.14-0.82, p=0.017) compared with other oral antihyperglycemic agents. CONCLUSION Our results suggest that metformin may have a protective effect on ocular complications, especially glaucoma, in patients with T2D. The effects of metformin either regarding prevention of ocular complications or ocular complications already developed in patients with T2D, should be further investigated.

Aim In order to increase the database related to the antineoplastic potential of metformin, association between the use of metformin and risk of cancer occurence in patients with diabetes mellitus type 2 (DM2) was investigated. Methods In this cross-sectional study, medical records of patients with DM2 were reviewed for cancer occurence. Data on age, body mass index (BMI), alcohol and nicotine consumption, glucose and HbA1c levels, duration of DM2, medication used in the treatment of DM2 and cancer occurence were collected and analyzed. Unpaired Student's t-test or Mann-Whitney U test were used for comparisons between treatment groups, and logistic regression to asses how well our set of predictor variables predicts occurence of carcinoma. P-value less than 0.05 was considered statistically significant. Results The mean age of 234 included patients was 66.8±11.5 years, and DM2 duration was 7± 6.49 years. Mean glucose value was 8.51±4.17mmol/L, and HbA1c 7.74±1.53. Metformin therapy was prescribed in 190 (81%) patients. Cancer was diagnosed in 16 (6.8%) patients: prostate cancer in eight (3.4%), breast cancer in four (1.7%), rectal cancer in two (0.9%) and cancer of the uterus and cervix in one patient. Age, duration of DM2 and BMI did not contribute significantly to the model, while metformin use was shown to be a significant independent predictor (OR=0.049; 95% CI=0.013-0.181; p=0.001). Conclusion Our findings support the hypothesis that the use of metformin compared to the use of other oral antidiabetic drugs is associated with a lower risk of cancer in patients with DM2.

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