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Dive into the research topics where Alexander Y. Sheng is active.

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Featured researches published by Alexander Y. Sheng.


Emergency Medicine International | 2013

Focused Assessment with Sonography in Trauma and Abdominal Computed Tomography Utilization in Adult Trauma Patients: Trends over the Last Decade

Alexander Y. Sheng; Peregrine Dalziel; Andrew S. Liteplo; Peter J. Fagenholz; Vicki E. Noble

Objective. We sought to describe the trend in abdominal CT use in adult trauma patients after a point-of-care emergency ultrasound program was introduced. We hypothesized that abdominal CT use would decrease as FAST use increased. Methods. We performed a retrospective study of 19940 consecutive trauma patients over the age of 18 admitted to our level one trauma center from 2002 through 2011. Data was collected retrospectively and recorded in a trauma registry. We plotted the rate of FAST and abdominal CT utilization over time. Head CT was used as a surrogate for overall CT utilization rates during the study period. Results. Use of FAST increased by an average of 2.3% (95% CI 2.1 to 2.5, P < 0.01) while abdominal CT use decreased by the same rate annually. The percentage of patients who received FAST as the sole imaging modality for the abdomen rose from 2.0% to 21.9% while those who only received an abdominal CT dropped from 21.7% to 2.3%. Conclusions. Abdominal CT use in our cohort declined while FAST utilization grew in the last decade. The rising use of FAST may have played a role in the reduction of abdominal CT performed as decline in CT utilization appears contrary to overall trends.


Academic Emergency Medicine | 2015

Research Priorities in the Utilization and Interpretation of Diagnostic Imaging: Education, Assessment, and Competency.

Resa E. Lewiss; Wilma Chan; Alexander Y. Sheng; Jorge A. Soto; Alexandra Castro; Andrew C. Meltzer; Alan R. Cherney; Manickam Kumaravel; Dianna Cody; Esther H. Chen

The appropriate selection and accurate interpretation of diagnostic imaging is a crucial skill for emergency practitioners. To date, the majority of the published literature and research on competency assessment comes from the subspecialty of point-of-care ultrasound. A group of radiologists, physicists, and emergency physicians convened at the 2015 Academic Emergency Medicine consensus conference to discuss and prioritize a research agenda related to education, assessment, and competency in ordering and interpreting diagnostic imaging. A set of questions for the continued development of an educational curriculum on diagnostic imaging for trainees and competency assessment using specific assessment methods based on current best practices was delineated. The research priorities were developed through an iterative consensus-driven process using a modified nominal group technique that culminated in an in-person breakout session. The four recommendations are: 1) develop a diagnostic imaging curriculum for emergency medicine (EM) residency training; 2) develop, study, and validate tools to assess competency in diagnostic imaging interpretation; 3) evaluate the role of simulation in education, assessment, and competency measures for diagnostic imaging; 4) study is needed regarding the American College of Radiology Appropriateness Criteria, an evidence-based peer-reviewed resource in determining the use of diagnostic imaging, to maximize its value in EM. In this article, the authors review the supporting reliability and validity evidence and make specific recommendations for future research on the education, competency, and assessment of learning diagnostic imaging.


The Clinical Teacher | 2015

Interactive format is favoured in case conference

Alexander Y. Sheng; John Eicken; Cheryl Lynn Horton; Eric S. Nadel; James Kimo Takayesu

Follow‐up case presentation (FCP), a staple of emergency medicine residency conference curricula nationwide, has traditionally been delivered using PowerPointTM (PP). The sole use of the PP lecture format may limit audience participation. In light of existing literature supporting chalkboard and morning report formats, we changed FCP to an interactive chalkboard format with limited PP slides. We hypothesised that this change will enhance the perceived educational impact of FCP on learners.


Western Journal of Emergency Medicine | 2018

Fantastic Learning Moments and Where to Find Them

Alexander Y. Sheng; Ryan Sullivan; Kara Kleber; Patricia M. Mitchell; James H. Liu; Jolion McGreevy; Kerry K. McCabe; Annemieke Atema; Jeffrey I. Schneider

Introduction Experiential learning is crucial for the development of all learners. Literature exploring how and where experiential learning happens in the modern clinical learning environment is sparse. We created a novel, web-based educational tool called “Learning Moment” (LM) to foster experiential learning among our learners. We used data captured by LM as a research database to determine where learning experiences were occuring within our emergency department (ED). We hypothesized that these moments would occur more frequently at the physician workstations as opposed to the bedside. Methods We implemented LM at a single ED’s medical student clerkship. The platform captured demographic data including the student’s intended specialty and year of training as well as “learning moments,” defined as logs of learner self-selected learning experiences that included the clinical “pearl,” clinical scenario, and location where the “learning moment” occurred. We presented data using descriptive statistics with frequencies and percentages. Locations of learning experiences were stratified by specialty and training level. Results A total of 323 “learning moments” were logged by 42 registered medical students (29 fourth-year medical students (MS 4) and 13 MS 3 over a six-month period. Over half (52.4%) intended to enter the field of emergency medicine (EM). Of these “learning moments,” 266 included optional location data. The most frequently reported location was patient rooms (135 “learning moments”, 50.8%). Physician workstations hosted the second most frequent “learning moments” (67, 25.2%). EM-bound students reported 43.7% of “learning moments” happening in patient rooms, followed by workstations (32.8%). On the other hand, non EM-bound students reported that 66.3% of “learning moments” occurred in patient rooms and only 8.4% at workstations (p<0.001). Conclusion LM was implemented within our ED as an innovative, web-based tool to fulfill and optimize the experiential learning cycle for our learners. In our environment, patient rooms represented the most frequent location of “learning moments,” followed by physician workstations. EM-bound students were considerably more likely to document “learning moments” occurring at the workstation and less likely in patient rooms than their non EM-bound colleagues.


Urgent Care Medicine Secrets | 2018

Adult Emergencies Presenting to Urgent Care Centers

Jeffrey Rixe; Alexander Y. Sheng

This chapter is a brief overview of the approach to the care of adults presenting to urgent care with emergencies requiring rapid recognition, stabilization, and disposition.


JMIR Medical Education | 2018

A Novel Web-Based Experiential Learning Platform for Medical Students (Learning Moment): Qualitative Study

Alexander Y. Sheng; Andrew Chu; Dea Biancarelli; Mari-Lynn Drainoni; Ryan Sullivan; Jeffrey I. Schneider

Background Experiential learning plays a critical role in learner development. Kolb’s 4-part experiential learning model consists of concrete experience, reflective observation, abstract conceptualization, and active experimentation in a recurring cycle. Most clinical environments provide opportunities for experiences and active experimentation but rarely offer structured means for reflection and abstract conceptualization that are crucial for learners to learn through experience. We created Learning Moment, a novel Web-based educational tool that integrates principles of asynchronous learning and learning portfolios to fulfill the reflection and abstract conceptualization aspects of Kolb’s learning cycle in the modern clinical learning environment. Medical students log concise clinical “pearls” in the form of “learning moments” for reflection, review, and sharing with peers in a community of practice. Objective We sought to evaluate learners’ experiences with Learning Moment via a qualitative study. Methods We employed purposive sampling to recruit medical students who used Learning Moment during their rotation. We conducted 13 semistructured interviews (10 individual interviews and one 3-person group interview) between January and March 2017 using an ethnographic approach and utilized a general inductive method to analyze and code for potential themes. Results A total of 13 students (five in their third year of medical school and eight in their fourth year) voluntarily participated in our qualitative interviews. Five of the 13 (38%) students intended to pursue emergency medicine as their chosen field of specialty. The median number of “learning moments” logged by these students is 6. From our analysis, three key themes emerged relating to the perceived impact of Learning Moment on student learning: (1) logging “learning moments” enhanced memorization, (2) improved learning through reflection, and (3) sharing of knowledge and experiences in a community of practice. Conclusions Learning Moment was successfully implemented into the educational infrastructure in our department. Students identified three mechanisms by which the application optimizes experiential learning, including enabling the logging of “learning moments” to promote memorization, encouraging reflection to facilitate learning, and fostering the sharing of knowledge and experiences within a community of practice. The Learning Moment concept is potentially scalable to other departments, disciplines, and institutions as we seek to optimize experiential learning ecosystems for all trainees.


American Journal of Emergency Medicine | 2016

Delphi method validation of a procedural performance checklist for insertion of an ultrasound-guided peripheral intravenous catheter ☆ ☆☆ ★

Christine F. Jung; Alan H. Breaud; Alexander Y. Sheng; Mark W. Byrne; Krithika M. Muruganandan; Muhammad Dhanani; Megan M. Leo

Presentations:  New England Regional Meeting, Society Academic Emergency Medicine (SAEM/NERDS) Worcester, MA; March 30, 2016  Society of Academic Emergency Medicine (SAEM) Annual Conference New Orleans, LA; May 13, 2016


Journal of The American College of Radiology | 2016

Awareness, Utilization, and Education of the ACR Appropriateness Criteria: A Review and Future Directions.

Alexander Y. Sheng; Alexandra Castro; Resa E. Lewiss


Current Problems in Diagnostic Radiology | 2016

Interactive Learning Module Improves Resident Knowledge of Risks of Ionizing Radiation Exposure From Medical Imaging

Alexander Y. Sheng; Alan H. Breaud; Jeffrey I. Schneider; Nadja Kadom; Patricia M. Mitchell; Judith A. Linden


Journal of Education and Teaching in Emergency Medicine | 2018

Hosting an eConference: Interactive Video Conference Grand Rounds Between Two Institutions

Jeffrey Rixe; Kiersten Carter; Alexander Y. Sheng; Jordan Spector; Katie Doering; Jeffrey Chien; Nikita Joshi

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Resa E. Lewiss

University of Colorado Denver

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