Self-Directed Interactive Video-Based Instruction Versus Instructor-Led Teaching for Myanmar House Surgeons: A Randomized, Noninferiority Trial.
OBJECTIVE:To compare self-directed interactive video-based instruction (IVBI) with instructor-led teaching in the acquisition of basic surgical skills by House Surgeons at University of Medicine 1, Yangon. DESIGN:A prospective, 1:1 randomized controlled trial was conducted. Participants were randomized into 2 teaching arms: (1) self-directed IVBI or (2) instructor-led teaching. Self-directed IVBI participants were provided with a portable DVD player that could play, fast forward, rewind, and skip through skills modules. Participants in the instructor-led teaching group were taught in small groups by standardized instructors. Pretesting and posttesting of 1-handed knot tie, 2-handed knot tie, vertical mattress suture, and instrument tie was performed using the Objective Structured Assessment of Technical Skills (OSATS). Students randomized to self-directed IVBI completed an exit survey to assess satisfaction. Demographic data were collected of all participants. SETTING:University of Medicine 1, Yangon, Myanmar. PARTICIPANTS:Fifty participants were randomly selected from 78 eligible House Surgeons who were enrolled in their basic surgery rotation. RESULTS:Demographic characteristics and baseline skills were comparable in participants randomized to IVBI and instructor-led teaching. Mean OSATS score increased from pretest to posttest in both groups (p < 0.001). The mean posttest OSATS score of the IVBI group was 0.72 points below that of the instructor-led teaching group (90% CI: -3.8 to 5.2), with the 90% CI falling below the a priori noninferiority margin, satisfying criteria for noninferiority. More than 90% of students marked either "agree" or "strongly agree" to the following statements on the exit survey: further expansion of IVBI into other skills modules and integration of IVBI into training curriculum. CONCLUSION:IVBI is noninferior to instructor-led teaching of surgical skills based on OSATS scores. House Surgeons highly rated self-directed IVBI. Self-directed IVBI has the potential to significantly reduce the personnel required for skills teaching and may serve as a long-term learning adjunct in low-resource settings.
Lwin, AT; Lwin, T; Naing, P; Oo, Y; Kidd, D; Cerullo, M; Posen, J; Hlaing, K; Yenokyan, G; Thinn, KK; Soe, ZW; Stevens, KA
Volume / Issue
Start / End Page
Pubmed Central ID
Electronic International Standard Serial Number (EISSN)
International Standard Serial Number (ISSN)
Digital Object Identifier (DOI)