Evaluation of the Effectiveness and Perceived Benefits of Interventional Structured Infection Prevention and Control Training Module Introduced in the Undergraduate Medical Curricula.

Introduction: Assessing and improving infection prevention and control (IPC) knowledge and practicing skills among medical students who are the future medical practitioners is crucial for reducing the burden of healthcare-associated infections (HAIs). In this study, we assessed the IPC knowledge of undergraduate clinical-year medical students before and after interventional IPC modular training and evaluated the effectiveness and students' perception on structured modular IPC training presented to them. Methods: This cross-sectional interventional study was conducted on single medical cohort comprising of 145 final-year undergraduate medical students of the academic year 2022-23 at COMHS. Pre-test, post-test, and feedback questionnaire were used as the assessing tools. The data were collected, entered into Excel sheet, and analyzed using SPSS software version 22. McNemar and Paired-T tests were carried out, and a p value<0.05 was considered significant. Feedback of the questionnaire was analyzed using 3 Point Likert Scale as agree, neutral, and disagree. Results: Overall, mean IPC knowledge scores after training (37.65±1.37) was significantly higher as compared to before training (25.13±4.51). Prior knowledge scores on certain aspects of IPC such as duration of hand washing, steps of hand washing, sequence of donning and doffing of PPE, use of N95 mask, and appropriate sharp and needle precautions, and biomedical waste management were varied from 13.6% to 65.6%. However, overall participants' knowledge (p value <0.001) on these aspects increased significantly after the training. The majority of the participants (>90%) perceived IPC training as an excellent tool to improve IPC knowledge and practicing skills. Conclusion: IPC training had a significant impact in gaining adequate IPC knowledge and practicing skills among our participants. Therefore, it is recommended that IPC training should be implemented in the undergraduate medical curriculum with greater emphasis on practicing skills.

Concept maps in immunology: A metacognitive tool to promote collaborative and meaningful learning among undergraduate medical students.

Introduction: Concept maps are graphical representations of knowledge that connect concepts, ideas, and relationships. The present study aims at assessing the perception of medical students in utilization of concept maps as a tool to foster their lifelong learning skills in immunology. Methods: The current study was approved by Institutional Ethics and Review Committee. Third-year undergraduate (MD3) medical students of the academic year 2021-22 were sensitized about the concept map study and included after obtaining their informed consent. The students worked in teams to find answers and link the different words or phrases of the concept maps. At the end of the immunology course, students' perception on concept map-based learning strategy was assessed. A pre-designed, self-administered questionnaire, pre-validated by subject experts for relevance and feasibility, was used for the study. The questionnaire included some quantitative questions assessed by using 3-point Likert Scale and an open-ended question to receive students' comments on concept map-based learning strategy. The responses were collected and analyzed using SPSS version 22. Descriptive statistics was used for the quantitative variables, tabulated as numbers and percentages while the qualitative data was analyzed by thematic analysis. The quantitative data results were prioritized but supported by students' comments on open ended question. Results: Out of 133 eligible participants, 109 students who volunteered and completed the study were included. Majority of our participants (>80%) welcomed the concept map-based learning strategy. Almost 4 out of 5 expressed that concept maps are interesting and enjoyable, encourage active participation, peer discussion, and enhance critical thinking and problem-solving skills. More than 80% of the students agreed that concept maps promoted deep understanding of the topic and lifelong learning. Nearly 3 out of 4 students suggested including concept maps in many immunology topics in future. Majority of students penned down positive comments indicating concept map tool facilitates metacognitive skills. Conclusion: From the study, it can be concluded that concept maps are effective active learning strategies to improve the metacognitive domain of medical students in immunology course, thus assisting them to become better lifelong learners.

Storm of a rare opportunistic life threatening mucormycosis among post COVID-19 patients: A tale of two pathogens.

Mucormycosis is a rare but life-threatening opportunistic fungal infection caused by a group of molds that belong to Zygomycetes of the order Mucorales. These fungi are found in the environment such as soil, decaying vegetation, and organic matters. Sporangiospores present in the environment enter the human body through inhalation or direct skin inoculation by trauma or ingestion and result in pulmonary, cutaneous, and gastrointestinal mucormycosis, respectively, in immunocompromised hosts. Patients with uncontrolled diabetes, hematological malignancies, high-dose glucocorticoid therapy, iron overload, and organ transplantation are at high risk of acquiring mucormycosis. The second wave of severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2] affected India severely with the highest number of cases and deaths compared to all other countries. Additionally, the country was affected by emergence of rare but life-threatening mucormycosis. Currently, many coronavirus disease 2019 patients with underlying risk factors such as uncontrolled diabetes, high-dose steroid therapy, and exposure to mechanical ventilation have developed mucormycosis. Inhalation is the most common mode of transmission that results in colonization of sporangiospores in the nose. In immunocompromised host, sporangiospores germinate, and subsequently form hyphae. These hyphae invade into tissues, and produce tissue infarction, necrosis, and thrombosis. Angioinvasion causes hematogenous dissemination to many organs, predominantly to brain, that result in rhino-orbital-cerebral mucormycosis. Clinical characteristics, radio imaging, fungal culture, histopathology, and molecular techniques are the key diagnostic methods. Surgical intervention and aggressive antifungal therapy are the main management strategies. Amphotericin B is the drug of choice for treatment of mucormycosis, whereas posaconazole or isavuconazole is used for step-down therapy and salvage therapy.

Learning out of the box: Fostering intellectual curiosity and learning skills among the medical students through gamification.

BACKGROUND: Gamification involving application of elements of game play that provides unique opportunities to learners to sail through complex medical concepts is gaining importance in medical education. The current study was aimed at assessing the perception of medical students regarding checkerboard game in enhancing learning process. MATERIALS AND METHODS: The present prospective cross-sectional study was conducted at the microbiology department. The fifth-year medical students of the academic year 2018-19 were the participants. Pre- and post-test scores and self-administered questionnaire regarding effectiveness of the checkerboard game-based learning were used as assessing tools. The data were collected, tabulated, and statistically analyzed using SPSS version 20. The pre- and post-test scores of students were statistically analyzed using paired t test. A descriptive analysis on the 3-point Likert scale of effectiveness survey was measured and expressed in percentages. RESULTS: In total, 124 fifth-year medical students participated in the study. Majority (89.5%) of them liked the game, nearly 86% opined that game was enjoyable and created interest. Approximately 88% indicated game helped them to understand the topic, enhanced learning, and thus improved the knowledge. Most students (79%) also believed that game encouraged critical thinking and problem solving, while 75% felt that it improved their communication skills. Around 70% felt that game was also useful for exam preparation and nearly 90% recommended to use the game more frequently. CONCLUSION: From the results of the study, it can be concluded that checkerboard game-based learning method is effective in fostering learning process and cognition of medical students in the microbiology course.

Are Online Synchronous Team-Based-Learning (TBL) pedagogy effective?: Perspectives from a study on medical students in Oman.

INTRODUCTION: Team-based learning (TBL) is a highly structured, instructive, and student-focused pedagogy used by medical educators to foster the students' learning. The present study aimed to qualitatively explore the students' perception of the effectiveness of online synchronous TBL pedagogical strategy in promoting learning outcomes. METHODS: A cross-over interventional study was conducted on MD4 year medical students, using four modified TBL sessions on common immunological diseases on four different dates. 139 participants were divided into 4 groups [35 each in A, B, C, & 34 in D]. For TBL session 1, Group A and group B were the study and control groups, respectively. For the second session on different topics, the groups were reversed with group B and group A as the study and control groups, respectively. The same was followed for groups C and D. The means and standard deviations of the pre-test and post-test scores were compared after calculating the improvement in scores from pre- to post-tests. Repeated measures ANOVA suitably coded in SPSS for cross-over design was used to find out confounding by sequence of interventions with a p-value of <0.05 signifying the significance.  Students' feedback on online TBL sessions was collected through a predesigned questionnaire on a 3-point Likert scale. The data were analyzed using SPSS version 22 and expressed as number and percentage. RESULTS: The post-test scores of the students who participated in the TBL session were significantly higher when compared to the self-study (SS) arm. The overall improvement in scores was 4.98 (1.4) in TBL group, whereas in the SS arm it was only 2.29 (1.51). The new method was found far superior to the self-study method regardless of being applied before or after the comparison mode of self-study (P<0.0001). The scores of the self-study was marginally better when offered first rather than after a TBL session, indicating the negative effect of cross-over on SS mode (P=0.024). The overall response of our students toward the effectiveness of online TBL pedagogy was overwhelmingly positive in terms of an opinion survey which had a Cronbach's alpha of 0.932. The majority (>80%) perceived TBL as an enjoyable active session that promoted their active participation and engagement through student-led discussions. Many stated that TBL enhanced their critical thinking, problem-solving ability, communication skills, and knowledge. CONCLUSION: TBL is an instructive and highly structured teaching-learning strategy, welcomed by the majority of our participants. Online TBL sessions are effective in fostering the students' learning and can be used confidently when needed.

Encouraging students' engagement and promoting deep learning in immunology through an interactive clinical case problem-solving (CCPS) approach: Perception among cohort of medical students in Oman.

BACKGROUND: Modern competency-based medical education emphasizes student-centered teaching-learning strategies where students take responsibility of their own learning. Student-centered approaches facilitate multifaceted learning such as observation, critical evaluation, analysis, deeper understanding, and application of knowledge. The current study aims at assessing the students' perception on utilization of clinical case problem-solving approach (CCPS) to promote their lifelong learning. MATERIALS AND METHODS: The present cross-sectional study was conducted at College of Medicine and Health Sciences (CoMHS) during the year 2021-2022. MD3 students of the academic year 2021-2022 were the study participants. The study was approved by institutional Ethic and Review Committee. Students' performances were assessed through pre-test and post-test performances. Students' feedback was collected through a predesigned questionnaire on a 3-point Likert scale. Cronbach's alpha coefficient test was used to assess the reliability of the questionnaire. The data was entered to Microsoft Excel and analyzed using SPSS software version 22. Paired t-test was used to compare pre-test and post-test scores and the data was expressed as numbers and percentages. RESULTS: In total, 103 participants were included in the study. Post-test scores were significantly higher compared to pre-test scores (p < 0.05). Questionnaire results showed that CCPS approach was accepted as an effective learning strategy. Majority (>90%) of the students expressed CCPS approach was interesting, motivated to learn, encouraged peer discussion, enhanced knowledge, and clarified their topic-related doubts. More than 80% students opined that CCPS enhanced their critical thinking, problem-solving ability, deep learning, and lifelong learning skills. Nearly 90% of the students suggested for including such sessions for more topics in immunology course in future. CONCLUSION: From our study results, it can be concluded that CCPS is an effective learning strategy to encourage students' engagement and promote their deep learning skills.

Antibiotic Resistance Pattern of Acinetobacter baumannii Strains: A Retrospective Study from Oman.

BACKGROUND: Multidrug-resistant (MDR) Acinetobacter baumannii is of serious health concern and associated with high mortality. Data regarding the antibiotic resistance pattern of A. baumannii strains in Oman is limited. OBJECTIVES: To determine the antibiotic resistance pattern of A. baumannii from various clinical samples in a tertiary care hospital in the North-Batinah region of Oman. METHODS: A. baumannii isolates recovered from various clinical samples in the Microbiology laboratory of Sohar Hospital, Oman, during 2015-2019 were retrospectively analyzed. Organism identification and their antibiotic resistance patterns were performed as recommended by the Clinical and Laboratory Standards Institute. RESULTS: A total of 1890 A. baumannii nonduplicate isolates were found from clinical samples of 1326 patients. The isolates were more frequently isolated from elderly patients (40%) and in-patient department patients (67%). Infection/colonization was more common among patients treated in the medicine, intensive-care unit, and surgery departments. A. baumannii strains were highly resistant (50-83%) to most of the tested antibiotics, with the highest against ceftriaxone (83%) and ceftazidime (75%), and lowest against colistin (1%) and tigecycline (8%). Among the isolates, 67% (1265) were MDR strains. Of these, 22%, 32% and 16% were resistant to all six, five and four classes of the tested antibiotics. CONCLUSION: The study found that the frequency of isolation of MDR A. baumannii isolates in the northern region of Oman is high.

Diabetic foot infections: Profile and antibiotic susceptibility patterns of bacterial isolates in a tertiary care hospital of Oman.

BACKGROUND: In diabetic foot infections (DFIs), the diversity of microbial profile and ever-changing antibiotic-resistance patterns emphasize accurate characterization of microbial profile and antibiotic susceptibility pattern. The aim of the study was to investigate the pathogens associated with DFI and their antibiotic susceptibility patterns. MATERIALS AND METHODS: A cross-sectional retrospective study was conducted at a tertiary-care hospital, Oman. The socio-demographic and microbiological profile and antibiotic susceptibility patterns of pathogens isolated from patients with DFIs from January 2013 to December 2018 were reviewed. Quantitative and qualitative variables were expressed as mean ± standard deviation and percentages, respectively. A Chi-square test was used for testing the association between multidrug-resistant (MDR) organisms and variables. RESULTS: In total, 233 isolates recovered from 133 clinical specimens with an average of 1.8 organisms per specimen were included in the study. Fifty-six and forty-four percent of specimens showed monomicrobial and polymicrobial growth of two or more organisms, respectively. The frequency of isolation was predominant among males (65%). Aerobic Gram-negative rods were predominantly (75%) isolated compared to Gram-positive organisms (25%). Staphylococcus aureus and Pseudomonas aeruginosa were the most frequently isolated Gram-positive and Gram-negative bacteria, respectively. Thirty-eight percent of them were MDR strains. Gram-negative organisms showed fairly good susceptibility ranging from 75% to 100% to carbapenems, aminoglycosides, and piperacillin-tazobactam. While doxycycline and trimethoprim-sulfamethoxazole showed good susceptibility toward Gram-positive organisms. CONCLUSION: DFIs are often polymicrobial with a predominance of Gram-negative pathogens. This study recommends the use of carbapenems and doxycycline for empirical therapy of Gram-negative and Gram-positive bacterial DFIs, respectively.

Profile and antibiotic-resistance pattern of bacteria isolated from endotracheal secretions of mechanically ventilated patients at a tertiary care hospital.

BACKGROUND: Critically ill patients on mechanical-ventilation are always at a higher risk of acquiring ventilator-associated respiratory infections. The current study was intended to determine the antibiotic-resistance pattern of bacteria recovered from the endotracheal (ET) specimens of ventilated patients. MATERIALS AND METHODS: This was a single-centered, retrospective study carried out in a 400-bed tertiary care hospital in Oman. The data of profile and antibiotic resistance pattern of bacterial isolates recovered from ET aspirates of ventilated patients during the period from January 2017 to August 2019 were retrieved from hospital database. The data were analyzed using the Statistical Package for the Social Sciences (SPSS) software version 22 (IBM, Armonk, New York, USA). Descriptive statistics were applied to find the frequencies and percentages. Charts and tables were constructed. RESULTS: In total, 201 bacterial isolates recovered from ET secretions of 154 ventilated patients were studied. The rate of isolation was predominant among males (65.6%) and in elderly people (50%). Gram-negative bacilli (GNB) were predominantly (88.6%) isolated. Acinetobacter baumannii (31.3%) was the most common isolate and 86% of them were multidrug-resistant strains. Klebsiella pneumoniae (23.9%) and Pseudomonas aeruginosa (22.9%) were the other common GNB, whereas Staphylococcus aureus was the most frequently isolated Gram-positive bacteria. Gentamicin showed good in vitro activity against S. aureus and all the GNB except A. baumannii reflecting good choice for empirical therapy. CONCLUSION: Gram-negative bacteria were the predominant isolates in ET secretions of ventilated patients. There was an alarmingly high rate of antimicrobial resistance among GNB. A rational use of antibiotics, regular monitoring of antibiotic resistance and use of right combination of drugs, in addition to refining of existing infection control practices are critical to control the emergence of drug-resistant strains.

Stenotrophomonas maltophilia: An emerging opportunistic nosocomial pathogen in a tertiary care hospital in Al Batinah North Governorate, Oman.

OBJECTIVES: Stenotrophomonas maltophilia, a Gram-negative non-fermentative bacillus, has emerged as an important nosocomial pathogen in recent years. It is intrinsically resistant to many antibiotics and has the ability to acquire antibiotic resistance by multiple mechanisms. Treating Stenotrophomonas infections, therefore, is a serious challenge for physicians. This study aimed to investigate the antibiotic susceptibility patterns and risk factors contributing to S. maltophilia infections. METHODS: A retrospective cross-sectional study was conducted at Sohar Hospital in Sohar, Oman. The demographic, clinical and microbiological data of individuals from whom S. maltophilia was isolated between September 2016 and August 2019 were reviewed. Descriptive statistics were presented as frequencies and percentages. RESULTS: A total of 41 S. maltophilia isolates from clinical specimens of 41 patients were studied. Infection occurred predominantly in males (73%) and the majority of patients (88%) were either ≤5 years old or >60 years old. All inpatients had at least one comorbidity while 50% had more than one. All inpatients were exposed to various medical interventions such as intensive care (44%), mechanical ventilation (41%), haemodialysis (25%), Foley's catheterisation (13%) and central venous lines (6%). Most patients (81%) were in hospital longer than two weeks. The susceptibility rates of S. maltophilia to minocycline (97%), trimethoprim-sulfamethoxazole (93%) and levofloxacin (92%) were high; the rate was lowest for ceftazidime (50%). CONCLUSION: S. maltophilia was found to be an important nosocomial opportunistic pathogen. Prolonged hospital stay and exposure to various medical interventions were key factors contributing to the development of infection. Minocycline and ceftazidime were found to be the most and least susceptible drugs, respectively.

Antibiotics at the crossroads - Do we have any therapeutic alternatives to control the emergence and spread of antimicrobial resistance?

Antibiotics once regarded as magic bullets are no more considered so. Overuse of antibiotics in humans, agriculture, and animal husbandry has resulted in the emergence of a wide range of multidrug-resistant (MDR) pathogens which are difficult to treat. Antimicrobial resistance (AMR) is a serious global health problem associated with high mortality in the era of modern medicine. Moreover, in the absence of an effective antibiotic, medical and surgical interventions can highly become a risk. In recent times, the decreased incline of pharmaceutical industries toward research and development of newer effective antibiotics to fight this MDR pathogens have further fuelled the scarcity of antibiotics, thus the number of antibiotics in the pipeline is extremely limited. Hence it is high time for the development of new strategies to fight against dangerous MDR pathogens. Currently, several novel approaches explored by scientists have shown promising results pertaining to their antimicrobial activity against pathogens. In this article, the authors have summarized various novel therapeutic options explored to contain AMR with special attention to the mechanism of action, advantages, and disadvantages of different approaches.

Hepatitis B: Knowledge and awareness among preclinical year medical students.

BACKGROUND AND OBJECTIVE: Hepatitis B is an occupational health hazard to health-care workers. The complete knowledge of hepatitis B virus (HBV) transmission and prevention is indispensable for medical students. This study was conducted to assess the knowledge and awareness of hepatitis B among preclinical year medical students. MATERIALS AND METHODS: This is a descriptive cross-sectional study. A predesigned self-administered questionnaire concerning hepatitis B knowledge and awareness was distributed to all the preclinical year medical students. The data were collected, tabulated, and analyzed by Microsoft Excel and Statistical Package for the Social Sciences (SPSS) software, version 22. The results were expressed in numbers and percentages. RESULTS: Of 251 students, only 132 students voluntarily participated in the study. Majority of the students (84.8%) were aware of HBV infection. Many students knew that blood transfusion (81.1%) and use of contaminated needles and syringes (74.2%) are major modes of transmission. However, less than 30% of the students had knowledge about other modes of transmission. More than 50% of the students lacked in their knowledge about clinical features and complications of hepatitis B infection. Majority of students (72.7%) were aware of HBV vaccination. However, many students did not know their vaccination status, whereas only 23.5% of the students were fully immunized. CONCLUSION: This study revealed lack of complete knowledge regarding hepatitis B among preclinical year medical students. They are at high risk of acquiring HBV infection during their clinical practice, later in life. Hence, implementation of well-structured education program in the first year itself is needed to create complete awareness among medical students about hepatitis B.

Learning style preferences of preclinical medical students in oman.

OBJECTIVE: Our study sought to assess the learning preferences of students studying in the preclinical years of the medical degree program at Oman Medical College, Sohar. METHODS: In this descriptive, cross-sectional study, we administered a learning style questionnaire (VARK model) to 140 students to assess their preferred mode of learning, specifically the sensory modality by which they prefer to take in information. RESULTS: Over one third (35%) of the respondents expressed their preference for a single mode of learning, either visual (8%), auditory (9%), read/write (9%), or kinesthetic (9%). The remaining students preferred learning using a combination of either two (14%), three (19%), or four (32%) sensory modalities. CONCLUSION: The results of our study provide us with useful information to develop appropriate learning approaches to reach all types of learners at the college.