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Improving Surgical Pattern Recognition Through Repetitive Viewing of Video Clips



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IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART A SYSTEMS AND HUMANS VOL 34 NO 6 NOVEMBER 2004 699 Improving Surgical Pattern Recognition Through Repetitive Viewing of Video Clips Stephanie Guerlain Senior Member IEEE Kristen Brook Green Maranda LaFollette Todd C Mersch Brian A Mitchell G Reed Poole J Forrest Calland Jianhong Lv and Edward G Chekan Abstract Previous field studies show that surgery residents and medical students have difficulty recognizing appropriate anatomic cues during laparoscopic surgery causing delays in procedures and errors Such observations led to the development of an anatomy recognition training intervention specifically the use of an ordered set of video clips that show the main steps of a laparoscopic procedure Each procedural step is shown several times in succession with each repetition coming from a different surgery thus exposing the learner to varied anatomy and crucial maneuvers A factorial experiment with 30 medical students showed that the group using these ordered perceptual learning modules had a significant increase in scores on questions assessing perceptual knowledge and procedural knowledge with no corresponding increase for the control group who watched the videos from the same cases but in an unstructured format for the same amount of time p 0 05 Neither group showed improvement on strategic or declarative knowledge tests The study suggests that ordered perceptual learning modules are a potential means for training perceptual and procedural knowledge in an effective safe and efficient manner serving as a complement to other types of training methods that teach physical dexterity strategic and declarative knowledge Index Terms Computer aided instruction educational technology ergonomics human factors medical decision making pattern recognition surgery I INTRODUCTION M OST TASKS require mastery of both physical dexterity skills as well as cognitive skills knowing when and how to perform certain actions Part task



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