Douglas Miyazaki1, Catherine A Matthews2, Mujan Varasteh Kia3, Amr Sherif El Haraki2, Noah Miyazaki4, Chi Chiung Grace Chen3. 1. Woman Care, Novant Health, Department of Obstetrics and Gynecology, Wake Forest School of Medicine, 114 Charlois Blvd, Winston-Salem, NC, 27103, USA. dm@miyazakienterprises.com. 2. Department of Obstetrics and Gynecology, Wake Forest School of Medicine, Winston Salem, NC, USA. 3. Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA. 4. Associated Arts, Forsyth Technical College, Winston-Salem, NC, USA.
Abstract
INTRODUCTION AND HYPOTHESIS: The Miya Model ™ (Miyazaki Enterprises, Winston-Salem, NC, USA) was designed as a realistic vaginal surgery simulation model. Our aim was to describe this model and present pilot data on validity and reliability of the model as an assessment tool of vaginal hysterectomy skills. METHODS: We video recorded ten obstetrics and gynecology residents (novice group) and ten practicing gynecologists (expert group) performing vaginal hysterectomy using the Miya model. Blood loss and time taken to complete the procedure were documented. Participants evaluated the model using a postsimulation survey. In addition, two experienced gynecologic surgeons independently evaluated video recordings of each participant's performance using two previously validated global rating scales: Reznick's Objective Structured Assessment of Technical Skill (OSATS) and Vaginal Surgical Skills Index (VSSI). RESULTS: Most participants (80% of novice and 100% of expert group) rated the model as effective or highly effective for vaginal hysterectomy training and assessment. Median time to procedure completion was significantly higher in the novice group, whereas median estimated blood loss was no different between groups. No significant differences were observed in the composite median OSATS or VSSI scores between groups. The interrater reliability indices for subscales and composite scores of the OSATS and VSSI were high and ranged from 0.79 to 0.90 and 0.77 to 0.93, respectively. CONCLUSIONS: With further study, the Miya Model may be a useful tool for teaching and assessing vaginal surgical skills.
INTRODUCTION AND HYPOTHESIS: The Miya Model ™ (Miyazaki Enterprises, Winston-Salem, NC, USA) was designed as a realistic vaginal surgery simulation model. Our aim was to describe this model and present pilot data on validity and reliability of the model as an assessment tool of vaginal hysterectomy skills. METHODS: We video recorded ten obstetrics and gynecology residents (novice group) and ten practicing gynecologists (expert group) performing vaginal hysterectomy using the Miya model. Blood loss and time taken to complete the procedure were documented. Participants evaluated the model using a postsimulation survey. In addition, two experienced gynecologic surgeons independently evaluated video recordings of each participant's performance using two previously validated global rating scales: Reznick's Objective Structured Assessment of Technical Skill (OSATS) and Vaginal Surgical Skills Index (VSSI). RESULTS: Most participants (80% of novice and 100% of expert group) rated the model as effective or highly effective for vaginal hysterectomy training and assessment. Median time to procedure completion was significantly higher in the novice group, whereas median estimated blood loss was no different between groups. No significant differences were observed in the composite median OSATS or VSSI scores between groups. The interrater reliability indices for subscales and composite scores of the OSATS and VSSI were high and ranged from 0.79 to 0.90 and 0.77 to 0.93, respectively. CONCLUSIONS: With further study, the Miya Model may be a useful tool for teaching and assessing vaginal surgical skills.
Authors: Chi Chiung Grace Chen; Abner Korn; Christopher Klingele; Matthew D Barber; Marie Fidela R Paraiso; Mark D Walters; J Eric Jelovsek Journal: Am J Obstet Gynecol Date: 2010-07 Impact factor: 8.661
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Authors: Chi Chung Grace Chen; Ernest G Lockrow; Christopher C DeStephano; Mikio A Nihira; Catherine Matthews; Leslie Kammire; Lisa M Landrum; Bruce D Anderson; Douglas Miyazaki Journal: Obstet Gynecol Date: 2020-11 Impact factor: 7.623