Introducing E-learning in Epidemiology Course for Undergraduate Medical Students at the Faculty of Medicine, University of Belgrade: A Pilot Study.

The aim of this study was to determine whether e-learning as a new teaching concept was acceptable for second-year undergraduates and to compare attitudes and exam results of students who followed electronic compared with classroom seminars. The electronic seminars (e-seminars) were developed several months prior to start of the epidemiology course for second-year students at the Faculty of Medicine, University of Belgrade. The students who applied for e-seminars accessed their content during summer semester (February-May) 2014. E-seminars were set according to the existing topics in practical workbook and designed using Moodle, a free, open-source, personal home page web application for producing modular internet-based courses. To evaluate the motives for enrollment and satisfaction with seminars, two surveys (pre- and post-course) were administered. Students' exam grades were registered over 4 exam sessions (June-October 2014) and compared according to seminar program. Out of 516 students in the second year, 60 (11.6 %) applied for e-seminars (mean age 21 years). Students considered the reason "It's easier to do assignments from home" as the strongest motive to participate. When compared to classroom seminars, students in e-seminars had significantly more fun (p = 0.003), thought that e-seminars were better mode to learn epidemiology (p = 0.030) and would recommend them to other colleagues (p = 0.001). There was no significant difference in average grade received at the oral exam in epidemiology (t = 0.071, p = 0.944). E-seminars in undergraduate epidemiology course add a novel, easy-to-follow and amusing mode of learning. Based on this pilot study, e-seminars in epidemiology will be available for next generations of students, while further improvement of e-seminars could include expansion of seminar syllabus and development of discussion fora.

Knowledge and occupational exposure to blood and body fluids among health care workers and medical students.

INTRODUCTION: Health workers and medical students are at occupational risk of blood-borne diseases during the accidents, that is, via percutaneous injury or entry of blood or body fluids through the mucosa or injured skin. OBJECTIVE: to review and analyze the knowledge, attitudes and perception of risks of bloodborne diseases of the clinical course students and health workers as well as the frequency of accidents. MATERIAL AND METHODS: Cross-sectional study was carried out among the students of the Faculty of Medicine in Belgrade, and health workers of the Clinical Center of Serbia. The subjects responded anonymously to questionnaire specially designed for the study. RESULTS: Both students and health workers were aware, in a high percentage, of the fact that the risk of hepatitis B spread was about 30%. Significantly more students gave affirmative reply that blood as biological material was a potential hazard of HIV infection spread (p = 0.001), and significantly more students knew that HIV would not be spread by sweat (p = 0.001). Hepatitis B vacci-nation was administered only to 24.1% of students and 71.4% of health workers. About 10% of students and 65.5% of health workers experienced some accident. There was no significant difference of accidents bet-ween nurses/technicians and physicians (p > 0.05), as well as of accidents and a total length of service (p > 0.05). The majority of accidents occurred during the use of needle/sharp object (in 27.3% of students and 33.1% of health workers). About 40% of students and slightly over a half of the workers reported the accidents to appropriate authorities. Additional education in this field is considered necessary by 73% of students. CONCLUSION: During the studies and via continuous medical education it is necessary to upgrade the level of knowledge on prevention of accidents, what would, at least partially, influence their reduction.

[Frequency of hospital infections at Department of Urology].

INTRODUCTION: At departments of urology, as well as other hospital departments, hospital infections represent an important problem. The objective of this work was to determine the frequency and the most common localizations of hospital infections at the Department of urology. MATERIAL AND METHODS: All the patients hospitalized for longer than 48 hours at the Department of Urology, General hospital, Sabac were included in a prospective study of incidence in the period of 12 months. The everyday epidemiological surveillance was carried out, as well as the inspection of the existing medical files. The diagnosis of hospital infections was made on the basis of known definitions. RESULTS: Ninety-four out of 554 hospitalized patients included in the research had 122 hospital infections. One hospital infection was recorded in 64 of those included in the research, whereas two and three infections were recorded in 26 and 2 patients, respectively. The incidence rate of the patients with hospital infections was 17.3%, and the rate of the incidence of the infections 22.4%. The incidence rate by 1,000 patients-hospitalization days was 12.4. Out of the total number of infections, 69.7% were urinary tract infections, 27% surgical site infections and 3.3% sepses. The incidence rate of the patients with urinary infections was 14.7% and the incidence rate of urinary infections 15.6%. The rate of urinary infections in the patients with urinary catheter (19.6%) was significantly higher than in those patients without urinary catheter (p < 0.001). The rate of incidence of surgical site infections was 6.1% and the incidence rate of blood infections was 0.7%. CONCLUSION: The most common hospital infections in our work were urinary infections and surgical site infections. The rates recorded in our study are similar to those in the hospitals that have only started the surveillance of hospital infections.

[Hospital infections at the Department of Cardiovascular Surgery].

INTRODUCTION: Despite modern surgical techniques, preoperative preventive use of antibiotics and optimal treatment of operative site, patients who underwent surgical procedures are still at a risk of developing hospital infections. The aim of this paper was to estimate the frequency of hospital infections at the Department of Cardiovascular Surgery and their presence according to the anatomic localization as well as to identify the most frequent causes of hospital infections. MATERIAL AND METHODS: During one-year period, all surgically treated patients were prospectively followed at the Department of Cardiovascular Surgery of the Institute of Cardiovascular Diseases, Vojvodina. There were 1302 patients who underwent 1396 surgical procedures during the period observed The descriptive epidemiological method was applied in the study. The following odds ratio and rates were calculated: the incidence rate of patients with hospital infections, the incidence rate of hospital infections and the incidence rate in relation to hospital stay of each patient (incidence density). RESULTS: During that period, 36 hospital infections were recorded in 33 patients. The average incidence rate of patients with hospital infection was 2.53% and hospital infection rate was 2.58% (from 0% to 5.13%). The male-female ratio was 3.1:1. The most frequent hospital infections were surgical site infections (incidence rate 0.86%), then gastroenteritis (incidence rate 0.77%) and bloodstream infections (incidence rate 0.46%). The most common causes of hospital infections were: Staphylococcus aureus (14.8%), Acinetobacter spp (22.2%) and coagulase negative staphylococcus (11.1%). CONCLUSION: The fact is that the incidence rate of hospital infections is relatively low, and such a trend can continue only if the continuous epidemiological control and preventive measures are implemented in the future.