Preventable deaths in hospitalized trauma patients.

AIM: To study the preventable trauma deaths of hospitalized patients in the United Arab Emirates and to identify opportunities for improvement. METHODS: We analyzed the Abu Dhabi Emirate Trauma Registry data of admitted patients who died in the emergency department or in hospital from 2014 to 2019. A panel of experts categorize the deaths into not preventable (NP), potentially preventable (PP), and definitely preventable (DP). RESULTS: A total of 405 deaths were included, and 82.7% were males. The majority (89.1%) were NP, occurring mainly in the emergency department (40.4%) and the intensive care unit (49.9%). The combined potentially preventable and preventable death rate was 10.9%. The median (Interquartile range) age of the DP was 57.5 (37-76) years, compared with 32 (24-42) and 34 (25-55) years for NP and PP, respectively (p = 0.008). Most of the PP deaths occurred in the intensive care unit (55.6%), while the DP occurred mainly in the ward (50%). Falls accounted for 25% of PP and DP. Deficiencies in airway care, hemorrhage control, and fluid management were identified in 25%, 43.2% and 29.5% of the DP/PP deaths, respectively. Seventy-two percent of the Airway deficiencies occurred in the prehospital, while 34.1% of hemorrhage control deficiencies were in the emergency department. Fluid management deficiencies occurred in the emergency department and the operation theater. CONCLUSIONS: DP and PP deaths comprised 10.9% of the deaths. Most of the DP occurred in the emergency department and ward. Prehospital Airway and in-hospital hemorrhage and excessive fluid were the main areas for opportunities for improvement.

Prehospital management of earthquake crush injuries: A collective review.

Earthquakes are natural disasters which can destroy the rural and urban infrastructure causing a high toll of injuries and death without advanced notice. We aim to review the prehospital medical management of earthquake crush injuries in the field. PubMed was searched using general terms including rhabdomyolysis, crush injury, and earthquake in English language without time restriction. Selected articles were critically evaluated by three experts in disaster medicine, emergency medicine, and critical care. The medical response to earthquakes includes: (1) search and rescue; (2) triage and initial stabilization; (3) definitive care; and (4) evacuation. Long-term, continuous pressure on muscles causes crush injury. Ischemia-reperfusion injury following the relieving of muscle compression may cause metabolic changes and rhabdomyolysis depending on the time of extrication. Sodium and water enter the cell causing cell swelling and hypovolemia, while potassium and myoglobin are released into the circulation. This may cause sudden cardiac arrest, acute extremity compartment syndrome, and acute kidney injury. Recognizing these conditions and treating them timely and properly in the field will save many patients. Majority of emergency physicians who have worked in the field of the recent Kahramanmaras 2023, Turkey, earthquakes, have acknowledged their lack of knowledge and experience in managing earthquake crush injuries. We hope that this collective review will cover the essential knowledge needed for properly managing seriously crushed injured patients in the earthquake field.

Trauma deaths of hospitalized patients in Abu Dhabi Emirate: a retrospective descriptive study.

AIM: To study the epidemiology and pattern of trauma-related deaths of hospitalized patients in Abu Dhabi Emirate, United Arab Emirates, in order to improve trauma management and injury prevention. METHODS: The Abu Dhabi Trauma Registry prospectively collects data of all hospitalized trauma patients from seven major trauma centres in Abu Dhabi Emirate. We studied all patients who died on arrival or after admission to these hospitals from January 2014 to December 2019. RESULTS: There were 453 deaths constituting 13.5% of all trauma deaths in the Abu Dhabi Emirate. The median (IQR) age of the patients was 33 (25-45) years, and 82% were males. 85% of the deaths occurred in the emergency department (ED) and the intensive care unit (ICU). Motor vehicle collision (63.8%) was the leading cause of death. 45.5% of the patients had head injury. Two of the seven hospitals admitted around 50% of all patients but accounted for only 25.8% of the total deaths (p < 0.001). Those who died in the ward (7%) were significantly older, median (IQR) age: of 65.5 (31.75-82.25) years, (p < 0.001), 34.4% of them were females (p = 0.09). The median (IQR) GCS of those who died in the ward was 15 (5.75-15) compared with 3 (3-3) for those who died in ED and ICU (P < 0.001). CONCLUSIONS: Death from trauma predominantly affects young males with motor traffic collision as the leading cause. Over 85% of in-hospital deaths occur in the ICU and ED, mainly from head injuries. Injury prevention of traffic collisions through enforcement of law and improved hospital care in the ED and ICU will reduce trauma death.

Poor adherence to the recommended pulmonary embolism diagnostic pathway in the emergency department: A retrospective cohort study.

OBJECTIVES: Pulmonary embolus (PE) is a form of venous thromboembolism associated with increased morbidity and mortality if not diagnosed and treated early. Variations in clinical presentation make the diagnosis challenging. The gold standard for diagnosing PE is a computed tomography pulmonary angiogram (CTPA). Physicians show a low threshold for over-investigating PE. The evaluation of patients with suspected PE should be efficient, including but not limited to the use of risk stratification methods. This study aims to assess the adherence to the recommended diagnostic pathways of ordering CTPAs in patients with suspected PE. METHODS: This retrospective cohort study included patients above 18 years of age who received a CTPA for a suspected PE in the emergency department (ED) of a hospital between 2015 and 2019. Patient demographic data, chief complaint, variables of the Wells and pulmonary emboli rule-out criteria scores, pregnancy status, investigations, and the patient's final PE diagnosis were extracted from the hospital electronic medical records. Diagnostic pathways that took place were compared to the internationally recommended pathway. RESULTS: Four hundred and eighty-six patients were included in this study. The mean age was 51.01 (±19.5) years, and 377 (69.3%) patients were female. The recommended PE diagnostic pathway to order CTPA was incorrectly followed in 288 patients (59.3%). Seventy-five (15.4%) patients received an unnecessary CTPA. D-dimer test was ordered unnecessarily in 144 patients (29.6%). The overall prevalence of PE in our population was 9.47% (n: 46). Out of the 75 unnecessarily ordered CTPAs, 2 (2.7%) showed PE, while CTPAs ordered using the correct pathway showed 31 (10.9%) PEs. CONCLUSION: Our study revealed that approximately two-thirds of all CTPA requests did not adhere to the recommended PE clinical decision pathway. There was a significant improper and unnecessary utilization of CTPA imaging and D-dimer testing. Improvements seem imperative to enhance physicians' clinical approach to PE diagnosis.

Those who speak survive: the value of the verbal component of GCS in trauma.

AIM: To evaluate the value of the individual components of GCS in predicting the survival of trauma patients in the Emergency Department. METHODS: Trauma patients who were admitted for more than 24 h or died after arrival at Al-Ain Hospital from January 2014 to December 2017 were studied. Children < 16 years, elderly > 80 years, patients with facial injuries, those intubated in the ER, and those with missing primary outcomes were excluded. Demography, vital signs, Glasgow Coma Scale (GCS), GCS components, Injury Severity Score (ISS), head AIS, and death were compared between those who died and those who survived. Factors with a p value of < 0.1 were entered into a backward likelihood logistic regression model to define factors that predict death. RESULTS: A total of 2548 patients were studied, out of whom 11 (0.4%) died. The verbal component of GCS (p < 0.001) and the ISS (p = 0.047) were the only significant predictors for death in the logistic regression model. The AUC (95% CI) of the GCS-VR was 0.763 (0.58-0.95), p = 0.003. The best point of GCS-VR that predicted survival was 5, having a sensitivity of 97%, a specificity of 54.5%, positive predictive value of 99. 8%, negative predictive value of 7.3%, and likelihood ratio of 2.13. CONCLUSION: In general trauma patients, acute trauma care professionals can use GCS-VR to predict survival when clinical condition permits instead of the total GCS score or ISS.

The COVID-19 pandemic reduced the trauma incidence and modified its pattern in Al-Ain City, United Arab Emirates.

AIM: We aimed to study the impact of the COVID-19 pandemic on the pattern of injury and outcome of hospitalized trauma patients in Al-Ain City, United Arab Emirates, to use this information in the preparedness for future pandemics. METHODS: We retrospectively compared the trauma registry data of all hospitalised trauma patients, who were treated at the two main trauma centres in Al-Ain City (Al-Ain Hospital and Tawam Hospital); those who were treated over 1 year before the pandemic (n = 2002) and those who were treated at the first year of the COVID-19 pandemic (n = 1468). RESULTS: There was a 26.7% reduction in the overall incidence of trauma admissions in the COVID-19 pandemic period. The mechanism of injury significantly differed between the two periods (p < 0.0001, Fisher's exact test). There was an absolute increase in the number of injuries, due to machinery and falling objects during the pandemic (39.7% and 54.1% respectively, p < 0.001). In contrast, road traffic collisions and falls were reduced by 33.5% and 31.3%, respectively. Location significantly differed between the two periods (p < 0.0001, Fisher's exact test). There was an absolute increase of 18.4% in workplace injuries and a reduction of 39.3% in home injuries over the study period. In addition, we observed relatively more workplace injuries and fewer home injuries during the pandemic (11.3% and 42.8% compared with 7.1% and 52.4%, respectively). Mortality was similar between the two periods (1.8% compared with 1.2%, p = 0.16, Fisher's exact test). CONCLUSIONS: The COVID-19 pandemic has modified the trauma risk exposure in our population. It reduced trauma hospital admissions by around 27%. Work-related injuries, including falling objects and machinery injuries, were relatively higher during the pandemic. Prevention of work-related injuries should be an important component of preparedness for future pandemics.

Self-efficacy beliefs and expectations during an Emergency Medicine Clerkship.

BACKGROUND: Undergraduate emergency medicine (EM) training is important because all medical graduates are expected to have basic emergency knowledge and skills regardless of their future speciality. EM clerkship should provide opportunities to improve not only knowledge and skills but also the self-efficacy of learners. This study aims to evaluate the expectations, opinions, and self-efficacy beliefs of medical students during a 4-week mandatory EM clerkship. METHODS: This study used a prospective longitudinal design with quantitative and qualitative survey methods. It includes final year medical students of the 2015-2016 academic year. Voluntary de-identified pre- and post-clerkship surveys included 25 statements. The post-clerkship survey included two open-ended questions asking participants to identify the best and worst three aspects of EM clerkship. Responses were analysed to determine themes or commonalities in participant comments indicative of the EM clerkship learning experiences and environment. RESULTS: Sixty-seven out of seventy-nine (85%) students responded to both pre- and post-clerkship surveys. Medical students' expectations of EM clerkships' effect on knowledge and skill acquisition were high, and a 4-week mandatory EM clerkship was able to meet their expectations. Medical students had very high expectations of EM clerkships' educational environment. In most aspects, their experiences significantly exceeded their expectations (p value < 0.001). The only exception was the duration of clerkship, which was deemed insufficient both at the beginning and at the end (p value: 0.92). The students perceived that their self-efficacy improved significantly in the majority of basic EM skills and procedures (p value < 0.001). Emergent qualitative themes in the study also supported these results. CONCLUSION: This study showed that a 4-week mandatory EM clerkship increased medical students' perceived self-efficacy in basic emergency management skills. The EM clerkship met students' expectations on knowledge and skill acquisition, and exceeded students' expectations on educational environment.

Current changes in the epidemiology of fall-related injuries in Al Ain City, United Arab Emirates.

BACKGROUND: Falls in the Gulf countries are the second most common cause of injuries. The United Arab Emirates government implemented various preventive measures to decrease injuries in the country. We aimed to evaluate the changes in the epidemiology of fall-related injuries in Al-Ain City over the last decade. METHODS: Data of hospitalized patients who presented with fall-related injuries to the Al-Ain Hospital during the two periods of March 2003 to March 2006 and January 2014 to December 2017 were compared. This included patients' demographics, mechanism, location, anatomical distribution and parameters related to injury severity. Non-parametric tests were used for the statistical analysis. RESULTS: 882 in the first and 1358 patients in the second period were studied. The incidence of falls decreased by 30.5% over ten years. The number of elderly, female patients, and UAE nationals increased, (p < 0.001, p = 0.004, and p < 0.001). Falls from height decreased by 32.5% (p < 0.001) while fall on the same level increased by 22.5% (p < 0.001). Fall-related injuries at home have increased significantly by 22.6% (p <0.001), while falls in workplaces decreased by 24.4% (p <0.001). CONCLUSIONS: Our study showed that the overall incidence of falls decreased compared to a decade ago. The preventive measures were effective in reducing falls from height and workplace injuries. Future preventive measures should target falls at the same level and homes.

The evaluation of intracranial pressure evaluation by optic nerve sheath diameter measurement on bedside ultrasonography after ischemic stroke.

INTRODUCTION: We aimed to predict intracranial pressure(ICP)after cerebral ischemic stroke by measuring diameter of the optic nerve sheath(ONSD)with bedside ultrasonography(US). In order to see the ICP changes,it was planned to record delta ICP changes at the 3rd and 5th day follow-up of the patients METHOTS: Patients aged 18 years or older who were admitted to the emergency department(ED)with stroke symptoms for one year were included.Demographic data,time elapsed since the onset of symptoms,neurogical status assesment scales,ONSD values measured by US in three time periods(the day the patient was admitted to the ED,the 3rd and 5th days of hospitalization),MDCT findings when the patient was admitted,ONSD values in MDCT,whether they received tissue plasminogen activator(tPA)and whether they underwent decompression surgery were recorded. RESULTS: The average age of the 82 patients was 67.5(range 33-89)years.Forty-two patients(51.2%)were male.On both the right and left sides,ONSD on the 3rd day was larger(>5 mm)than on first day(p < 0.05). ONSD on the 5th day was larger than on the first day(p > 0.05). All ONSD results measured using both US and MDCT showed a positive correlation between the same eye and contralateral eye measurements(p < 0.05). DISCUSSION: CT is the most critical radiological method for stroke patients.Transport to radyology unit in unstable patients carries risk and is not recommended.Optic nerve US can be used in the early diagnosis of ICP increase and provides early treatment.The ease of use and safety in unstable patients have increased its popularity. CONCLUSION: We believe that measuring ONSD using US is an appropriate choice on ICP management in stroke patients.

Epidemiological changes of geriatric trauma in the United Arab Emirates.

ABSTRACT: We aimed to study the epidemiological changes in geriatric trauma in Al-Ain City, United Arab Emirates, in the past decade to give recommendations on injury prevention.Trauma patients aged 65 years and above who were hospitalized at Al-Ain Hospital for more than 24 hours or died in the hospital after their arrival regardless of the length of stay were studied. Data were extracted from the Al-Ain Hospital trauma registry. Two periods were compared; March 2003 to March 2006 and January 2014 to December 2017. Studied variables which were compared included demography, mechanism of injury and its location, and clinical outcome.There were 66 patients in the first period and 200 patients in the second period. The estimated annual incidence of hospitalized geriatric trauma patients in Al-Ain City was 8.5 per 1000 geriatric inhabitants in the first period compared with 7.8 per 1000 geriatric inhabitants in the second period. Furthermore, mortality was reduced from 7.6% to 2% (P = 0.04). There was a significant increase in falls on the same level by14.9% (62.1%-77%, P = 0.02, Pearson χ2 test). This was associated with a significant increase of injuries occurring at home (55.4%-78.7% P = 0.0003, Fisher Exact test). There was also a strong trend in the reduction of road traffic collision injuries which was reduced by 10.8% (27.3%-16.5%, P = 0.07, Fisher Exact test).Although the incidence and severity of geriatric trauma did not change over the last decade, in-hospital mortality has significantly decreased over time. There was a significant increase in injuries occurring at homes and in falls on the same level. The home environment should be targeted in injury prevention programs so as to reduce geriatric injuries.

A mandatory Emergency Medicine clerkship influences students' career choices in a developing system.

BACKGROUND: Attracting medical students for a front-line specialty, Emergency Medicine, is challenging in many countries. The available literature is scarce and bounded to the mature emergency care and education systems. In the countries where emergency medicine is a new specialty and has different contextual needs, the perception of the students and their career interest in emergency medicine specialty is an unanswered question. OBJECTIVE: We aimed to study the effects of a mandatory Emergency Medicine (EM) clerkship on students' perceptions and their future career choice to be emergency physicians. METHODS: A voluntary de-identified survey was prospectively collected before and after the EM clerkship to capture students' perceptions in four domains (EM clerkship, EM physicians, EM patients, and EM specialty as a career choice). The survey included 24 statements having five-point Likert scale for each statement. Non-parametric Wilcoxon signed rank test was used for statistical analysis. RESULTS: Sixty-seven students responded to both surveys (response rate of 85%). Students' perceptions have significantly improved on the EM physicians, and their job after attending the clerkship (p < 0.001). They found EM a respected (p = 0.038), flexible (p < 0.001), secure (p < 0.001), satisfying, and prestigious (p = 0.006) job. They found EM physicians compassionate (p < 0.011), have adequate patient contact (p < 0.045) and control on their time (0.004). Choosing EM as a future career has significantly increased after clerkship (p < 0.001). CONCLUSIONS: Our mandatory EM clerkship significantly improved students' perceptions on EM specialty as a future career choice. A well-structured and mandatory EM clerkship can attract more students to be trained in the EM.

From the pandemic's front lines: A social responsibility initiative to develop an international free online emergency medicine course for medical students.

The COVID-19 pandemic has disrupted medical education and forced medical schools to shift to remote teaching. However, in many institutions, this shift was complicated by the lack of previous experience and resources as well as the decreased educational time and effort due to increased clinical load. In April 2020, the International Emergency Medicine (iEM) Education Project embarked upon a social responsibility initiative to ease and facilitate this transition for emergency medicine clerkships. A 4-week open online emergency medicine core content course for medical students covering 11 lessons and 37 topics was created. This course contains a total of 25 hours of content, 66 chapters curated from the free iEM Education Project 2018 eBook and Society of Academic Emergency Medicine curriculum website and 131 videos granted freely by the commercial medical education resources provider, Lecturio. In the first 24 hours, the website was visited 3127 times from 57 countries in 6 continents. While online teaching is not a substitute for in-person clinical teaching, such initiatives can provide resources to clinical teachers who are overwhelmed with clinical duties and an opportunity for medical students from low-resource settings to continue their training safely during the pandemic.

Trauma system developments reduce mortality in hospitalized trauma patients in Al-Ain City, United Arab Emirates, despite increased severity of injury.

BACKGROUND: Trauma is a leading cause of death in the United Arab Emirates (UAE). There have been major developments in the trauma system in Al-Ain City during the last two decades. We aimed to study the effects of these developments on the trauma pattern, severity, and clinical outcome of hospitalized trauma patients in Al-Ain City, United Arab Emirates. METHODS: This is a retrospective analysis of two separate sets of prospectively collected trauma registry data of Al-Ain Hospital. Data were collected over two periods: from March 2003 to March 2006 and from January 2014 to December 2017. Demography, injury mechanism, injury location, and clinical outcomes of 2573 trauma patients in the first period were compared with 3519 patients in the second period. RESULTS: Trauma incidence decreased by 38.2% in Al-Ain City over the last 10 years. Trauma to females, UAE nationals, and the geriatric population significantly increased over time (p < 0.0001, Fisher's exact test for each). Falls on the same level significantly increased over time, while road traffic collisions and falls from height significantly decreased over time (p < 0.0001, Fisher's exact test for each). Mortality significantly decreased over time (2.3% compared with 1%, p < 0.0001, Fisher's exact test). CONCLUSIONS: Developments in the trauma system of our city have reduced mortality in hospitalized trauma patients by 56% despite an increased severity of injury. Furthermore, the injury incidence in our city decreased by 38.2% over the last decade. This was mainly in road traffic collisions and work-related injuries. Nevertheless, falls on the same level in the geriatric population continue to be a significant problem that needs to be addressed.

Plasma Procalcitonin Is Useful for Predicting the Severity of Acute Cholecystitis.

BACKGROUND: Acute cholecystitis is a common complication of cholelithiasis. Delayed diagnosis may constitute morbidity and mortality; therefore, early diagnosis and determining the severity of acute cholecystitis are crucial. OBJECTIVES: This study aimed to determine the validity of blood procalcitonin (PCT) levels in assessing the severity of acute cholecystitis. METHODS: The Emergency Department (ED) patients diagnosed as acute cholecystitis were included in the study. Patients were allocated into three severity grades according to the Tokyo Guidelines 2013. PCT level was measured after the clinical and radiological diagnosis of acute cholecystitis in the ED. RESULTS: Ninety-five patients diagnosed with acute cholecystitis, among them 48 of were male. Forty patients (42.1%) were allocated to grade 1, 19 (20%) to grade 2, and 36 (37.9%) to grade 3. The median values of PCT were 0.104 ng/ml, 0.353 ng/ml, and 1.466 ng/ml for grade 1, 2, and 3 patients, respectively (p < 0.001). CONCLUSION: Blood procalcitonin levels can be used to determine the severity of acute cholecystitis effectively.

Factors Affecting Mortality in Patients Admitted to the Hospital by Emergency Physicians despite Disagreement with Other Specialties.

BACKGROUND: Emergency physicians (EPs) face critical admission decisions, and their judgments are questioned in some developing systems. This study aims to define the factors affecting mortality in patients admitted to the hospital by EPs against in-service departments' decision and evaluate EPs' admission diagnosis with final discharge diagnosis. METHODS: This is a retrospective analysis of prospectively collected data of ten consecutive years (2008-2017) of an emergency department of a university medical center. Adult patients (≥18 years-old) who were admitted to the hospital by EPs against in-service departments' decision were enrolled in the study. Significant factors affecting mortality were defined by the backward logistic regression model. RESULTS: 369 consecutive patients were studied, and 195 (52.8%) were males. The mean (SD) age was 65.5 (17.3) years. The logistic regression model showed that significant factors affecting mortality were intubation (p < 0.0001), low systolic blood pressure (p = 0.006), increased age (p = 0.013), and having a comorbidity (p = 0.024). There was no significant difference between EPs' primary admission diagnosis and patient's final primary diagnosis at the time of disposition from the admitted departments (McNemar-Bowker test, p = 0.45). 96% of the primary admission diagnoses of EPs were correct. CONCLUSIONS: Intubation, low systolic blood pressure on presentation, increased age, and having a comorbidity increased the mortality. EPs admission diagnoses were highly correlated with the final diagnosis. EPs make difficult admission decisions with high accuracy, if needed.

Global Incidence and Mortality Patterns of Pedestrian Road Traffic Injuries by Sociodemographic Index, with Forecasting: Findings from the Global Burden of Diseases, Injuries, and Risk Factors 2017 Study.

(1) Background: Pedestrian injuries (PIs) represent a significant proportion of road traffic injuries. Our aim was to investigate the incidence and mortality of PIs in different age groups and sociodemographic index (SDI) categories between 1990 and 2017. (2) Method: Estimates of age-standardized incidence and mortality along with trends of PIs by SDI levels were obtained from the Global Burden of Disease from 1990 to 2017. We also forecasted the trends across all the SDI categories until 2040 using the Statistical Package for the Social Sciences (SPSS Statistics for Windows, version 23.0, Chicago, IL, USA) time series expert modeler. (3) Results: Globally, the incidence of PIs increased by 3.31% (-9.94 to 16.56) in 2017 compared to 1990. Men have higher incidence of PIs than women. Forecasted incidence was 132.02 (127.37 to 136.66) per 100,000 population in 2020, 101.52 (65.99 to 137.05) in 2030, and reduced further to 71.02 (10.62 to 152.65) by 2040. Globally across all SDI categories, there was a decreasing trend in mortality due to PIs with the global estimated percentage reduction of 37.12% (-45.19 to -29.04). (4) Conclusions: The results show that PIs are still a burden for all SDI categories despite some variation. Although incidence and mortality are expected to decrease globally, some SDI categories and specific vulnerable age groups may require particular attention. Further studies addressing incidence and mortality patterns in vulnerable SDI categories are needed.

Clinical Procedure Experience of Medical Students Improves Their Objective Structured Clinical Examination Station Scores in Emergency Medicine Clerkship.

OBJECTIVE: We aimed to study the correlation between procedure experiences in the clinical setting and objective structured clinical examination (OSCE) scores achieved at the end of an emergency medicine clerkship for the final-year medical students. METHODS: This is a retrospective analysis of prospectively collected clinical data of 141 final-year medical students and their OSCE scores for the two consecutive academic years (2015-2017). The experience of practical skills including suturing, extended focused assessment sonography for trauma (EFAST), airway management, and cardiopulmonary resuscitation was correlated with the final OSCE scores in the same areas. RESULTS: Weighted experiences of the four procedures were significantly correlated with the total OSCE station scores (p = 0.027, Spearman's rho = 0.19). Suturing OSCE scores were significantly higher than the other stations (p < 0.0001, Wilcoxon signed-rank test). There was a significant correlation between suturing experience and its OSCE score (p = 0.036, Spearman's rho = 0.18). There was also a strong trend in correlation between EFAST experience and its OSCE score (p = 0.063, Spearman's rho = 0.16). There was a significant difference in weighted experience between each of the four procedures (p < 0.0001, Wilcoxon signed-rank test). In all cut-off levels (75-95) of OSCE scores, students showed higher weighted procedure experience for those who had higher scores. Statistical significance was found only for students who scored more than 90% of the OSCE score. CONCLUSION: Clinical experience of procedures improved OSCE scores of the same procedures. The top students showed significant higher weighted procedure experience.

Point-of-care Ultrasound Training During an Emergency Medicine Clerkship: A Prospective Study.

Aim This study evaluated the effects of three-hour instructor-led training courses in the Extended Focused Assessment Sonography for Trauma (EFAST) and Rapid Ultrasound in Shock and Hypotension (RUSH) protocols on knowledge gain and retention by final-year medical students. Methods This prospective study evaluated 79 final year medical students participating in an emergency medicine (EM) clerkship during the 2017-2018 academic year. None of the included students had prior formal ultrasound training or hands-on experience. All students participated in three-hour training courses on the EFAST and RUSH protocols, with training on each protocol involving one hour of didactic training and two hours of practical training. Knowledge improvement was measured by testing before and after each course, and knowledge retention was evaluated on a final clerkship multiple choice question (MCQ) examination. Results Median scores were significantly higher after rather than before both the EFAST (15; range, 12-19 vs. 7; range, 2-18; p < 0.0001) and RUSH (16; range, 6-20 vs. 6; range, 1-13; p < 0.0001) courses. EFAST knowledge was significantly higher than RUSH knowledge before (p = 0.04) but not after (p = 0.82) taking the respective course. The RUSH score was significantly lower than the EFAST score on the final clerkship MCQ examination (p < 0.0001). Conclusions Three hours of instructor-led ultrasound training given during an EM clerkship significantly increased knowledge of both the EFAST and RUSH protocols. Knowledge retention after two weeks was higher for the EFAST than the RUSH protocol. A longer period of RUSH training may improve the retention of knowledge.

Team-based learning improves knowledge and retention in an emergency medicine clerkship.

BACKGROUND: Team-based learning (TBL) as an instructional pedagogy is increasingly recognized to improve student engagement, value of teamwork, and performance on standardized assessments when compared to traditional lecture-based instruction. The aim of this study is to compare two educational modalities (TBL and didactic/case discussion) on knowledge-based outcome and student perceptions. METHODS: Two emergency medicine clerkship academic years were studied. In the first year, all topics were delivered via didactic presentations along with case discussions. In the second year, eight topics were delivered using TBL while three topics were delivered via didactic/case discussions. Final exam marks were compared. Student satisfaction survey was also conducted and analyzed. RESULTS: After adjusting for student past performance and exam difficulty, student marks improved in the second year for both TBL and didactic/case discussion topics. The average mark for topics taught via TBL in the second year was significantly higher than the average mark on the same topics taught didactically in the first year by 7.5% (T test, p < 0.001). The marks for topics taught via TBL showed better improvement comparing to topics taught via didactic/case discussion by 2.3% (ANOVA-RM, p = 0.042). Student marks related to TBL topics were significantly higher on the medical exit exam (paired t test, p = 0.007). Student response to TBL survey was positive. CONCLUSIONS: TBL as part of a blended learning environment facilitated improved knowledge-based performance in an emergency medicine clerkship following end clerkship and medical school exit assessments, suggesting TBL stimulates long-term retention. The high acceptance of TBL among our students suggests a preference of this learning modality to didactic teaching.