Authors
- CARLOS E GARCIA RODRIGUEZ 1
- RAJ J SHAH 1
- CODY SMITH 1
- CHRISTOPHER J GAY 2
- JARED ALVARADO 1
- DOUGLAS RAPPAPORT 3
- WILLIAM RT J ADAMAS-RAPPAPORT 4
- RICHARD AMINI 5
1 College of Medicine, University of Arizona, 1501 N Campbell Ave, Tucson, AZ 85724, USA
2 University of Arizona College of Medicine - Tucson
3 Department of Emergency Medicine,Mayo Clinic Hospital, Phoenix, AZ, USA
4 Department of Surgery, University of Arizona, Tucson, AZ, USA
5 Department of Emergency Medicine, University of Arizona, Tucson, AZ, USA
Abstract
Introduction: Increased faculty and resident responsibilities have ledto the decreased time available for teaching clinical skills to medicalstudents. Numerous advances in education and simulation haveattempted to obviate this problem; however, documented success islacking. Our objective was to describe a novel fresh cadaver-based,student-driven procedural skills lab and to compare the educationaleffectiveness of student instructors to the senior instructor (SI).
Methods: This was a prospective study performed at an academic medical center. A pilot program, “Students Teaching Students,” was introduced where four trained first-year medical students (TMS)
instructed 41 other untrained first-year medical students in technical procedures. This study compared the teaching evaluations of the SI with the TMS teaching equivalent procedures. Paired t-test was used to determine statistically significant changes in procedural confidence between pre- and post-training. Utilizing a post-training questionnaire, average post-training confidence improvement values and objective post-training test scores of the participants were compared between TMS and SI, using a 2 sample t-test. Statistical significance was considered as a pResults: Twenty-nine out of 39 (74%) students completed the questionnaire. Both groups demonstrated a statistically significant improvement in subjective confidence level in performing each procedure when pre- and post-training scores were compared, while there was no statistically significant difference found in cognitive knowledge between the groups (p=0.73). There was no statistically significant difference in the mean confidence improvement between the SI and TMS groups for chest tube insertion (2.06 versus 1.92 respectively, p=0.587), femoral line placement (2.00 versus 1.94 respectively, p=0.734) or student test score (88% versus 85% respectively).
Conclusion: Our results demonstrate that first-year medical students well-trained in technical skills, such as our TMS, may be a valuable additional teaching resource. The Students Teaching Students
procedure lab employed in this study was effective at immediately increasing first-year medical students’ confidence and technical skill. First-year medical students well-trained in technical skills, such as our TMS, may be a valuable additional teaching resource.
Keywords
- Kaplan SJ, Carroll JT, Nematollahi S, Chuu A, Adamas-Rappaport W, Ong E. Utilization of a non-preserved cadaver to address deficiencies in technical skills during the third year of medical school: A cadaver model for teaching technical skills. World J Surg. 2013;37(5):953-955. doi:10.1007/s00268-013-1905-0.
- DiMaggio PJ, Waer AL, Desmarais TJ, et al. The use of a lightly preserved cadaver and full thickness pig skin to teach technical skills on the surgery clerkship—a response to the economic pressures facing academic medicine today. Am J Surg. 2017;200(1):162-166. doi:10.1016/j.amjsurg.2009.07.039.
- McCrary HC, Krate J, Savilo CE, et al. Development of a fresh cadaver model for instruction of ultrasound-guided breast biopsy during the surgery clerkship: pre-test and post-test results among third-year medical students. Am J Surg. 2016;212(5):1020-1025. doi:10.1016/j.amjsurg.2016.02.008.
- Bridges M, Diamond DL. The financial impact of teaching surgical residents in the operating room. Am J Surg. 1999;177(1):28-32. doi:10.1016/S0002-9610(98)00289-X.
- Qayumi a K, Cheifetz RE, Forward a D, Baird RM, Litherland HK, Koetting SE. Teaching and evaluation of basic surgical techniques: the University of British Columbia experience. J Invest Surg. 1999;12(6):341-350. http://www.ncbi.nlm.nih.gov/pubmed/10630398.
- Miller R, Ho H, Ng V, et al. Introducing a Fresh Cadaver Model for Ultrasound-guided Central Venous Access Training in Undergraduate Medical Education. West J Emerg Med. 2016;17(3):362-366. doi:10.5811/westjem.2016.3.30069.
- Nematollahi S, Kaplan SJ, Knapp CM, et al. Introduction of a fresh cadaver laboratory during the surgery clerkship improves emergency technical skills. Am J Surg. 2017;210(2):401-403.e2. doi:10.1016/j.amjsurg.2015.01.018.
- Amini R, Stolz LA, Breshears E, et al. Assessment of ultrasound-guided procedures in preclinical years. Internal and Emergency Medicine. 2016:1-7.
- Kay RD, Manoharan A, Nematollahi S, et al. A novel fresh cadaver model for education and assessment of joint aspiration. J Orthop. 2016;13(4):419-424. doi:10.1016/j.jor.2016.09.003.
- Parent RJ, Plerhoples TA, Long EE, et al. Early, Intermediate, and Late Effects of a Surgical Skills “Boot Camp” on an Objective Structured Assessment of Technical Skills: A Randomized Controlled Study. J Am Coll Surg. 2017;210(6):984-989. doi:10.1016/j.jamcollsurg.2010.03.006.
- Chenot JF, Simmenroth-Nayda A, Koch A, et al. Can student tutors act as examiners in an objective structured clinical examination? Med Educ. 2007;41(11):1032-1038. doi:10.1111/j.1365-2923.2007.02895.x.
- Holland JP, Waugh L, Horgan A, Paleri V, Deehan DJ. Cadaveric hands-on training for surgical specialties: Is this back to the future for surgical skills development? J Surg Educ. 2011;68(2):110-116. doi:10.1016/j.jsurg.2010.10.002.
- Akaike M, Fukutomi M, Nagamune M, et al. 2-Simulation-based medical education in clinical skills laboratory. J Med Investig JMI. 2012;59(1-2):28-35. http://search.ebscohost.com/login.aspx?direct=true&db=mnh&AN=22449990&site=ehost-live.
- Berman JR, Ben-Artzi A, Fisher MC, Bass AR, Pillinger MH. A comparison of arthrocentesis teaching tools: cadavers, synthetic joint models, and the relative utility of different educational modalities in improving traineesâ comfort with procedures. J Clin Rheumatol. 2012;18(4):175-179. doi:10.1097/RHU.0b013e318258259e.
- Sutherland LM, Middleton PF, Anthony A, et al. Surgical simulation: a systematic review. Ann Surg. 2006;243(3):291-300. doi:10.1097/01.sla.0000200839.93965.26.
- Wong DT. What Is the Minimum Training Required for Successful Cricothyroidotomy? Anesthesiology. 2003;98(2):349-353. doi:10.1097/01.sa.0000132001.87115.78.
- Scott DJ, Dunnington GL. The New ACS/APDS Skills Curriculum: Moving the Learning Curve Out of the Operating Room. J Gastrointest Surg. 2008;12(2):213-221. doi:10.1007/s11605-007-0357-y.
- Varga S, Smith J, Minneti M, et al. Central venous catheterization using a perfused human cadaveric model: Application to surgical education. J Surg Educ. 2015;72(1):28-32. doi:10.1016/j.jsurg.2014.07.005.
- Soriano RP, Blatt B, Coplit L, et al. Teaching medical students how to teach: a national survey of students-as-teachers programs in U.S. medical schools. Acad Med. 2010;85(11):1725-1731. doi:10.1097/ACM.0b013e3181f53273.
- Kensinger CD, McMaster WG, Vella MA, Sexton KW, Snyder RA, Terhune KP. Residents as educators: A modern model. J Surg Educ. 2015;72(5):949-956. doi:10.1016/j.jsurg.2015.04.004.
- Shea CH, Lai Q, Black C, Park J-H. Spacing practice sessions across days benefits the learning of motor skills. Hum Mov Sci. 2000;19:737-760. doi:10.1016/S0167-9457(00)00021-X.