scholarly journals Randomized study of effectiveness of computerized ultrasound simulators for an introductory course for residents in Brazil

Author(s):  
Jack Philip Silva ◽  
Trevor Plescia ◽  
Nathan Molina ◽  
Ana Claudia de Oliveira Tonelli ◽  
Mark Langdorf ◽  
...  

Purpose: This study aimed to assess the impact of ultrasound simulation (SonoSim) on educational outcomes of an introductory point-of-care ultrasound course compared to hands-on training with live models alone. Methods: Fifty-three internal medicine residents without ultrasound experience were randomly assigned to control or experimental groups. They participated in an introductory point-of-care ultrasound course covering eight topics in eight sessions from June 23, 2014 until July 18, 2014. Both participated in lecture and hands-on training, but experimental group received an hour of computerized simulator training instead of a second hour of hands-on training. We assessed clinical knowledge and image acquisition with written multiple-choice and practical exams, respectively. Of the 53 enrolled, 40 participants (75.5%) completed the course and all testing. Results: For the 30-item written exam, mean score of the experimental group was 23.1±3.4 (n=21) vs. 21.8±4.8 (n=19), (P>0 .05). For the practical exam, mean score for both groups was 8.7 out of 16 (P>0 .05). Conclusion: The substitution of eight hours of ultrasound simulation training for live model scanning in a 24 hour training course did not enhance performance on written and image acquisition tests in an introductory ultrasound course for residents. This result suggests that ultrasound simulation technology used as a substitute for live model training on an hour-for-hour basis, did not improve learning outcomes. Further investigation into simulation as a total replacement for live model training will provide a clearer picture of the efficacy of ultrasound simulators in medical education.

CJEM ◽  
2016 ◽  
Vol 18 (S1) ◽  
pp. S61-S62
Author(s):  
C. Hrymak ◽  
E. Weldon ◽  
C. Pham

Introduction: Point of care ultrasound for assessment of undifferentiated hypotension and shock is part of the clinical scope of Emergency Physicians in Canada. The RUSH Exam outlines a systematic approach to these patients. A RUSH Exam educational model using didactic and hands on practice was developed and implemented for Emergency Medicine (EM) residents. This study evaluated the effectiveness of the module in a simulated setting on the following endpoints: improvement in image acquisition, interpretation, speed, and subjective comfort level, among EM residents with basic ultrasound training. Methods: Approval was received from the institutional health research ethics board for this before and after simulation study. Residents in the -EM Program or CCFP-EM Program from July 2014 to July 2015 were eligible to consent. Participants were excluded if they were unable to complete all portions. All residents were educated to the same level of introductory ultrasound training based on the curriculum in place at our institution. The 8-hour intervention included RUSH didactic and hands on small group sessions. Testing before and after the intervention was performed with the SonoSim Livescan training platform. Two evaluators scored each resident on the accuracy of image acquisition, image interpretation, and time to scan completion. A before and after survey assessed resident comfort level with performing ultrasound on an emergency patient in shock, and basing decisions on ultrasound findings. Statistical analysis was performed using McNemar’s test for image acquisition and interpretation, a paired T test for time, and the Bahpkar test for the questionnaire. Results: 16 EM residents including 11 senior residents and 5 junior residents were enrolled. Improvement was achieved in the categories of IVC image acquisition and interpretation, as well as interpretation for B-lines, lung sliding, cardiac apical and parasternal long axis, and DVT (p<0.05). Subjective comfort level of performing ultrasound in shock and basing decisions on the findings was increased (p<0.0001). Among junior residents, there was an increased speed of image acquisition. Conclusion: With the introduction of the RUSH Exam educational module, EM residents showed improved image acquisition, image interpretation, speed, and comfort level when using ultrasound in critically ill patients.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Elaine Situ-LaCasse ◽  
Josie Acuña ◽  
Dang Huynh ◽  
Richard Amini ◽  
Steven Irving ◽  
...  

Abstract Background Point-of-care ultrasound is becoming a ubiquitous diagnostic tool, and there has been increasing interest to teach novice practitioners. One of the challenges is the scarcity of qualified instructors, and with COVID-19, another challenge is the difficulty with social distancing between learners and educators. The purpose of our study was to determine if ultrasound-naïve operators can learn ultrasound techniques and develop the psychomotor skills to acquire ultrasound images after reviewing SonoSim® online modules. Methods This was a prospective study evaluating first-year medical students. Medical students were asked to complete four SonoSim® online modules (aorta/IVC, cardiac, renal, and superficial). They were subsequently asked to perform ultrasound examinations on standardized patients utilizing the learned techniques/skills in the online modules. Emergency Ultrasound-trained physicians evaluated medical students’ sonographic skills in image acquisition quality, image acquisition difficulty, and overall performance. Data are presented as means and percentages with standard deviation. All P values are based on 2-tailed tests of significance. Results Total of 44 medical students participated in the study. All (100%) students completed the hands-on skills evaluation with a median score of 83.7% (IQR 76.7–88.4%). Thirty-three medical students completed all the online modules and quizzes with median score of 87.5% (IQR 83.8–91.3%). There was a positive association between module quiz performance and the hands-on skills performance (R-squared = 0.45; p < 0.001). There was no statistically significant association between module performance and hands-on performance for any of the four categories individually. In all four categories, the evaluators’ observation of the medical students’ difficulty obtaining views correlated with hands-on performance scores. Conclusions Our study findings suggest that ultrasound-naïve medical students can develop basic hands-on skills in image acquisition after reviewing online modules.


2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Elizabeth A. Hall ◽  
Danielle Matilsky ◽  
Rachel Zang ◽  
Naomasa Hase ◽  
Ali Habibu Ali ◽  
...  

Abstract Background A point-of-care ultrasound education program in obstetrics was developed to train antenatal healthcare practitioners in rural Zanzibar. The study group consisted of 13 practitioners with different training backgrounds: physicians, clinical officers, and nurse/midwives. Trainees received an intensive 2-week antenatal ultrasound course consisting of lectures and hands-on practice followed by 6 months of direct supervision of hands-on scanning and bedside education in their clinical practice environments. Trainees were given a pre-course written exam, a final exam at course completion, and practical exams at 19 and 27 weeks. Trainees were expected to complete written documentation and record ultrasound images of at least 75 proctored ultrasounds. The objective of this study was prospectively to analyze the success of a longitudinal point-of-care ultrasound training program for antepartum obstetrical care providers in Zanzibar. Results During the 6-month course, trainees completed 1338 ultrasound exams (average 99 exams per trainee with a range of 42–128 and median of 109). Written exam scores improved from a mean of 33.7% (95% CI 28.6–38.8%) at pre-course assessment to 77.5% (95% CI 71–84%) at course completion (P < 0.0001). Practical exam mean scores improved from 71.2% at course midpoint (95% CI 62.3–80.1%) to 84.7% at course completion (95% Cl 78.5–90.8%) (P < 0.0005). Eight of the 13 trainees completed all training requirements including 75 proctored ultrasound exams. Conclusion Trainees improved significantly on all measures after the training program. 62% of the participants completed all requirements. This relatively low completion rate reflects the challenges of establishing ultrasound capacity in this type of setting. Further study is needed to determine trainees’ long-term retention of ultrasound skills and the impact of the program on clinical practice and health outcomes.


2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Matthew G. Hanson ◽  
Barry Chan

Abstract Background Symptomatic pericardial effusion (PCE) presents with non-specific features and are often missed on the initial physical exam, chest X-ray (CXR), and electrocardiogram (ECG). In extreme cases, misdiagnosis can evolve into decompensated cardiac tamponade, a life-threatening obstructive shock. The purpose of this study is to evaluate the impact of point-of-care ultrasound (POCUS) on the diagnosis and therapeutic intervention of clinically significant PCE. Methods In a retrospective chart review, we looked at all patients between 2002 and 2018 at a major Canadian academic hospital who had a pericardiocentesis for clinically significant PCE. We extracted the rate of presenting complaints, physical exam findings, X-ray findings, ECG findings, time-to-diagnosis, and time-to-pericardiocentesis and how these were impacted by POCUS. Results The most common presenting symptom was dyspnea (64%) and the average systolic blood pressure (SBP) was 120 mmHg. 86% of people presenting had an effusion > 1 cm, and 89% were circumferential on departmental echocardiogram (ECHO) with 64% having evidence of right atrial systolic collapse and 58% with early diastolic right ventricular collapse. The average time-to-diagnosis with POCUS was 5.9 h compared to > 12 h with other imaging including departmental ECHO. Those who had the PCE identified by POCUS had an average time-to-pericardiocentesis of 28.1 h compared to > 48 h with other diagnostic modalities. Conclusion POCUS expedites the diagnosis of symptomatic PCE given its non-specific clinical findings which, in turn, may accelerate the time-to-intervention.


CJEM ◽  
2019 ◽  
Vol 21 (S1) ◽  
pp. S38-S39
Author(s):  
C. McKaigney ◽  
C. Bell ◽  
A. Hall

Innovation Concept: Assessment of residents' Point of Care Ultrasound (PoCUS) competency currently relies on heterogenous and unvalidated methods, such as the completion of a number of proctored studies. Although number of performed studies may be associated with ability, it is not necessarily a surrogate for competence. Our goal was to create a single Ultrasound Competency Assessment Tool (UCAT) using domain-anchored entrustment scoring. Methods: The UCAT was developed as an anchored global assessment score, building on a previously validated simulation-based assessment tool. It was designed to measure performance across the domains of Preparation, Image Acquisition, Image Optimization, and Clinical Integration, in addition to providing a final entrustment score (i.e., OSCORE). A modified Delphi method was used to establish national expert consensus on anchors for each domain. Three surveys were distributed to the CAEP Ultrasound Committee between July-November 2018. The first survey asked members to appraise and modify a list of anchor options created by the authors. Next, collated responses from the first survey were redistributed for a re-appraisal. Finally, anchors obtaining &gt;65% approval from the second survey were condensed and redistributed for final consensus. Curriculum, Tool or Material: Twenty-two, 26, and 22 members responded to the surveys, respectively. Each anchor achieved &gt;90% final agreement. The final anchors for the domains were: Preparation – positioning, initial settings, ensures clean transducer, probe selection, appropriate clinical indication; Image Acquisition – appropriate measurements, hand position, identifies landmarks, visualization of target, efficiency of probe motion, troubleshoots technical limitations; Image Optimization – centers area of interest, overall image quality, troubleshoots patient obstacles, optimizes settings; Clinical Integration – appropriate interpretation, understands limitations, utilizes information appropriately, performs multiple scans if needed, communicates findings, considers false positive and negative causes of findings. Conclusion: The UCAT is a novel assessment tool that has the potential to play a central role in the training and evaluation of residents. Our use of a modified Delphi method, involving key stakeholders in PoCUS education, ensures that the UCAT has a high degree of process and content validity. An important next step in determining its construct validity is to evaluate the use of the UCAT in a multi-centered examination setting.


CJEM ◽  
2020 ◽  
Vol 22 (S1) ◽  
pp. S73-S74
Author(s):  
D. Smith ◽  
J. Chenkin ◽  
R. Simard

Introduction: Detection of a pulse is crucial to decision-making in the care of patients who are in cardiac arrest, however, the current standard of manual pulse palpation is unreliable. An emerging alternative is the use of point-of-care ultrasound (POCUS) for direct assessment of the carotid pulse. The primary objective of this study is to determine the inter-observer reliability for healthcare provider interpretation of the carotid pulse by POCUS in patients who are peri-arrest or in cardiac arrest. Methods: We conducted a web-based survey of healthcare providers. Participants were shown a tutorial demonstrating POCUS detection of the carotid pulse and then asked to interpret 15 carotid pulse ultrasound clips from patients who were peri-arrest or in cardiac arrest. The primary outcome was inter-observer reliability for carotid pulse assessment. Secondary outcomes included inter-observer reliability stratified by healthcare provider role and POCUS experience, mean tutorial duration, mean pulse assessment duration, rate of pulse assessments < 10 seconds, and change in participant confidence before and after the study. Inter-observer reliability was determined by Krippendorff's α. Change in participant confidence was determined by Wilcoxon signed-rank test. Results: 68 participants completed our study, with a response rate of 75% (68/91). There was near perfect inter-observer reliability for pulse assessment amongst all study participants (α=0.874, 95% CI 0.869, 0.879). Senior residents (n = 24) and POCUS experts (n = 6) demonstrated the highest rates of inter-observer reliability, α=0.902 (95% CI 0.888, 0.914) and α=0.925 (95% CI 0.869, 0.972), respectively. All sub-groups had α greater than 0.8. Mean tutorial duration was 31 seconds (SD = 17.5) with maximum duration of 55 seconds. Mean pulse assessment duration was 7.7 seconds (SD = 5.2) with 76% of assessments completed within 10 seconds. Participant confidence before and after the study significantly increased from a median of 2 to a median of 4 on a 5-point Likert-type scale (z = 6.3, p < .001). Conclusion: Interpretation of the carotid pulse by POCUS showed near perfect inter-observer reliability for patients who were peri-arrest or in cardiac arrest. Participants required minimal training and indicated improved POCUS pulse assessment confidence after the study. Further work must be done to determine the impact of POCUS pulse assessment on the resuscitation of patients in cardiac arrest.


2020 ◽  
Vol 185 (5-6) ◽  
pp. e601-e608
Author(s):  
Jonathan D Monti ◽  
Michael D Perreault

Abstract Introduction Advances in the portability of ultrasound have allowed it to be increasingly employed at the point of care in austere settings. Battlefield constraints often limit the availability of medical officers throughout the operational environment, leading to increased interest in whether highly portable ultrasound devices can be employed by military medics to enhance their provision of combat casualty care. Data evaluating optimal training for effective medic employment of ultrasound is limited however. This prospective observational cohort study’s primary objective was to assess the impact of a 4-hour introductory training intervention on ultrasound-naïve military medic participants’ knowledge/performance of the eFAST application. Materials and Methods Conventional U.S. Army Medics, all naïve to ultrasound, were recruited from across JBLM. Volunteer participants underwent baseline eFAST knowledge assessment via a 50-question multiple-choice exam. Participants were then randomized to receive either conventional, expert-led classroom didactic training or didactic training via an online, asynchronously available platform. All participants then underwent expert-led, small group hands-on training and practice. Participants’ eFAST performance was then assessed with both live and phantom models, followed by a post-course knowledge exam. Concurrently, emergency medicine (EM) resident physician volunteers, serving as standard criterion for trained personnel, underwent the same OSCE assessments, followed by a written exam to assess their baseline eFAST knowledge. Primary outcome measures included (1) post-course knowledge improvement, (2) eFAST exam technical adequacy, and (3) eFAST exam OSCE score. Secondary outcome measures were time to exam completion and diagnostic accuracy rate for hemoperitoneum and hemopericardium. These outcome measures were then compared across medic cohorts and to those of the EM resident physician cohort. Results A total of 34 medics completed the study. After 4 hours of ultrasound training, overall eFAST knowledge among the 34 medics improved from a baseline mean of 27% on the pretest to 83% post-test. For eFAST exam performance, the medics scored an average of 20.8 out of a maximum of 22 points on the OSCE. There were no statistically significant differences between the medics who received asynchronous learning versus traditional classroom-based learning, and the medics demonstrated comparable performance to previously trained EM resident physicians. Conclusions A 4-hour introductory eFAST training intervention can effectively train conventional military medics to perform the eFAST exam. Online, asynchronously available platforms may effectively mitigate some of the resource requirement burden associated with point-of-care ultrasound training. Future studies evaluating medic eFAST performance on real-world battlefield trauma patients are needed. Skill and knowledge retention must also be assessed for this degradable skill to determine frequency of refresher training when not regularly performed.


2020 ◽  
Author(s):  
Satoshi Jujo ◽  
Jannet J Lee-Jayaram ◽  
Brandan I Sakka ◽  
Atsushi Nakahira ◽  
Akihisa Kataoka ◽  
...  

Abstract Background Cardiac point-of-care ultrasound (POCUS) training has been integrated into medical school curricula. However, there is no standardized cardiac POCUS training method for medical students. To address this issue, the American Society of Echocardiography (ASE) proposed a framework for medical student cardiac POCUS training. The objective of this pilot study was to develop a medical student cardiac POCUS curriculum with test scoring systems and test the curriculum feasibility for a future definitive study.Methods Based on the ASE-recommended framework, we developed a cardiac POCUS curriculum consisting of a pre-training online module and hands-on training with a hand-held ultrasound (Butterfly iQ). The curriculum learning effects were assessed with a 10-point maximum skill test and a 40-point maximum knowledge test at pre-, immediate post-, and 8-week post-training. To determine the curriculum feasibility, we planned to recruit 6 pre-clinical medical students. We semi-quantitatively evaluated the curriculum feasibility in terms of recruitment rate, follow-up rate 8 weeks after training, instructional design of the curriculum, the effect size (ES) of the test score improvements, and participant satisfaction. Discriminatory ability of the test scoring systems were assessed by comparing the scores of the medical students, medical interns, and experts.Results Six pre-clinical medical students participated in the curriculum. The recruitment rate was 100% (6/6 students) and the follow-up rate 8 weeks after training was 100% (6/6). ESs of skill and knowledge test score differences between pre- and immediate post-, and between pre- and 8-week post-training were large. The students reported high satisfaction with the curriculum. The test scoring systems demonstrated excellent discriminatory ability between the 3 different performance levels.Conclusions This pilot study confirmed the curriculum design as feasible with instructional design modifications including the hands-on training group size, content of the cardiac POCUS lecture, hands-on teaching instructions, and hand-held ultrasound usage. Based on the pilot study findings, we plan to conduct the definitive study with the primary outcome of long-term skill retention 8 weeks after initial training. The definitive study has been registered in ClinicalTrials.gov (Identifier: NCT04083924).


2020 ◽  
Vol 19 (1) ◽  
pp. 2-3
Author(s):  
Tim Cooksley ◽  

As another winter season passes, many colleagues will continue to be working under immense pressures striving to provide high quality care for increasingly larger numbers of patients. The work of Acute Medicine teams to keep the “front door” safe are fundamental to the delivery and sustainability of acute care services. The challenges of innovating and enacting positive changes at times of such high service demand are not insignificant; but the specialty is blessed with rapidly expanding driven and dedicated international, national and local leaders. The first winter SAMBA has recently been performed. SAMBA is an increasingly rich data source that will serve both nationally and locally to help improve performance and ultimately patient outcomes.1 Higher quality Acute Medicine is being produced. Acute Physicians are leading in many acute sub-specialties. Pleasingly, there has a been a significant rise in the number of trainees applying to train in Acute Medicine in the UK reflecting the traction the specialty is achieving. Ambulatory care remains a fundamental tenet to the sustainability of acute care services. Point of care testing is a key element in driving efficient performance in this setting and in this issue Verbakel et al. perform an important analysis on the reliability of point of care testing to support community based ambulatory care.2 This work should field the way for further research defining the impact of point of care testing and how it should be implemented in ambulatory clinical practice. The performance of respiratory rate observation remains poorly performed in acute care settings despite its well validated predictive value. Nakitende et al. describe an app that allows respiratory rate to calculated more quickly and accurately by using a touch screen method.3 Technological innovations to improve the recording and accuracy of physiological parameters in acute care, which can also be used in resource poor settings, will be a focus of large quantities of research in the upcoming years. Blessing et al. describe an important modelling study on the impact of integrated radiology units.4 Co-ordination between Acute Medicine and Radiology departments is essential in a high functioning AMU, especially as increasingly Acute Physicians are trained in point of care ultrasound. Lees-Deutsch et al. provide a fascinating insight into the patient’s perspective of discharge lounges.5 Often used to help maintain flow through the hospital, they elucidate that patients and caregivers transferred from AMU do not find this aspect of their journey a positive one. In times of significant organisational pressures, it is important that clinicians continue to examine the impact of flow measures on the quality of patient care and experience.


2020 ◽  
Vol 1 (2) ◽  
pp. 1-7
Author(s):  
Alex K. Saltzman ◽  
Thuyvan H. Luu ◽  
Nicole Brunetti ◽  
James D. Beckman ◽  
Mary J. Hargett ◽  
...  

Background and Objectives: Point-of-care ultrasound (POCUS) in the form of focused cardiac ultrasound (FOCUS) is a powerful clinical tool for anesthesiologists to supplement bedside evaluation and optimize cardiopulmonary resuscitation in the perioperative setting. However, few courses are available to train physicians. At Hospital for Special Surgery (HSS), from March of 2013 to May of 2016, nine basic Focused Assessed Transthoracic Echocardiography (FATE) training courses were held. A large percentage of the participants were practicing regional anesthesiologists or trainees in fellowship for regional anesthesia and acute pain. In this study, a survey was used to assess clinical utilization as well as potential barriers to use for regional anesthesiologists. Methods: Following IRB approval, 183 past participants of the basic FATE training course were contacted weekly from November 22nd, 2016, through January 3rd, 2017, via email and sent a maximum 40-item electronic survey hosted on REDCap. Responses were analyzed by a blinded statistician. Results: 92 participants responded (50%), and 65 of the 92 (70.7%) indicated they had regional anesthesiology training or practice regional anesthesia regularly. Of the total number of respondents, 50% (95% CI: 40.3%, 59.8%; P-value = 0.001) have used FOCUS to guide clinical decision making. Of the regional anesthesiologists, 27 (45.8%) have used FOCUS to guide clinical decision making with left ventricular function assessment (40.7%) and hypovolemia (39.0%) being the most common reasons. Regional anesthesiologists utilized FOCUS in the following settings: preoperatively (44.6%), intraoperatively (41.5%), postoperatively (41.5%), and in the Intensive Care Unit (40.0%). Limitations were due to lack of opportunities (52.3%), resources (36.9%), and comfort with performance (30.8%). 84.4% agreed that basic FOCUS training should be a required part of anesthesia residents or fellows’ curriculum. Conclusions: This study is the first formal evaluation of the impact of the implementation of a FOCUS training course on regional anesthesiologists’ current practice. Nearly 50% of regional anesthesiologists used FOCUS to guide clinical decision-making following formal training. The limitations to the use of FOCUS were a lack of relevant opportunities and resources. This evaluation of clinical use following training provides insight into how FOCUS is used by regional anesthesiologists and the limitations to implementation in the perioperative setting.


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