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Biomedical subjects

Jennifer Weller

Publications and source records attributed to Jennifer Weller.

5 recordsLinked to original sources

Simulation-based training to improve acute care skills in medical undergraduates.

AIM: Acquisition of clinical skills by medical undergraduates can be problematic, especially in the context of medical emergencies. Simulation using computerised manikins may be an effective and ethical solution. We assessed the ability of undergraduates to manage medical emergencies, and evaluated simulation as an educational and assessment tool. METHOD: Medical undergraduates were assessed in standardised, highly contextualised simulations of medical emergencies using both checklists and global ratings, and were reassessed following a simulation-based educational intervention to measure learning effect. The scores for groups at different levels of training were compared to test construct validity of global ratings of simulator performance. We explored student perspectives of simulation through thematic analysis of questionnaire responses. RESULTS: Seventy-one students were studied. Final year students performed significantly better than fourth year students, but the ability to initiate management of medical emergencies was unsatisfactory in both groups. Performance improved significantly over the course of the simulation workshop. The learning processes in simulation-based education were perceived as more effective than traditional methods, and consistent with known principles of effective learning. Students felt the simulations were a reasonable measure of their abilities and 91% felt that such simulations should be included in their end-of-year assessment. CONCLUSION: Current medical undergraduate training does not ensure new graduates can intervene effectively in an emergency. Simulation-based workshops are effective and should be incorporated into the undergraduate curriculum both for education and assessment of competence in emergency management.

Clinical Competence↗

The use of high-fidelity human patient simulation and the introduction of new anesthesia delivery systems.

New anesthesia delivery systems are becoming increasingly complex. Although equipment is involved in a large proportion of intraoperative anesthesia problems (most also involving human error), the current methods of introducing new equipment into clinical practice have not been well studied. We designed a randomized, controlled, prospective study to investigate an alternative method of introducing new anesthesia equipment. Fifteen anesthesiology trainees were randomized to either the standard introduction to a Drager Fabius GS anesthesia delivery machine plus simulated clinical use of the new machine in a high-fidelity human patient simulator (HPS) (Group 1) or to the standard introduction alone (Group 2). We used a questionnaire to seek their opinion on the new equipment, and responses showed that both groups were comparable in their reported confidence to use the new equipment safely. All trainees were then tested in two simulated anesthetic crises with the new machine. Performance was analyzed in terms of time to resolve the emergency, by using analysis of videos by an independent rater. Group 1 resolved both crises significantly faster. HPS allowed us to detect design features that were common sources of error.

Anesthesia↗

GeneX Va: VBC open source microarray database and analysis software.

Developed by the Virginia Bioinformatics Consortium (VBC), GeneX Va is an open source, freeware database and bioinformatics analysis software for archiving and analyzing Affymetrix GeneChip data. It provides an integrated framework for management, documentation, and analysis of microarray experiments and data to support a range of users, from individual research laboratories to institutional microarray facilities. GeneX Va also provides web-based access to a PostgreSQL relational database system with a comprehensive security system. Data can be extracted from the database and delivered to interactive or scriptable statistical analysis protocols. The security system allows each investigator to manage their own array data and analysis output files and also provides custom access privileges for other users, groups, and internal/external collaborators. The analysis interface uses "Analysis Trees," an innovative user interface that allows researchers to interactively create a tree-structured flow chart of analysis routines. The latest GeneX Va software is available from and can be freely downloaded at the Sourceforge web site http://va-genex.sourceforge.net. To allow researchers to access the database and analysis capabilities of the GeneX Va system, microarray data from many VBC GeneChip experiments have been deposited into a public section of the GeneX Va system at the University of Virginia. The VBC GeneX Va sites, which include documentation, are at http://genes.med.virginia.edu/ of the University of Virginia and at http://genex.csbc.vcu.edu/ of the Virginia Commonwealth University.

Computer Security↗

Education to address medical error--a role for high fidelity patient simulation.

AIMS: To describe and evaluate a simulation based course that emphasizes the role of teamwork in the management of both crises and errors. METHODS: The course allowed participants to experience and manage simulated crises. Emphasis was placed on important error management strategies such as communication, leadership and delegation of workload. A computerized mannequin that is physiologically and pharmacologically responsive was used to run life-like crisis scenarios. The scenarios were videotaped and reviewed during a debriefing discussion after each crisis. Scenarios were alternated with tutorials that addressed error management, communication and medico-legal issues. Participants evaluated the courses using 5-point Likert scales and free comments. RESULTS: In 1999 and 2000, 172 participants (34% of New Zealand anaesthetists) attended one of these courses. Evaluation forms were received from 151 participants (88%). The global evaluations had median scores of 4 or 5 and all respondents would recommend the course to others. The responses from 50 participants indicated that the course should be repeated at least every two years. CONCLUSION: New Zealand anaesthetists found this an acceptable and useful form of training. Teamwork is an effective strategy in crisis management and error reduction and is worthy of consideration within the broader context of medical education.

Anesthesiology↗