Dubrowski Adam, Park Jason, Moulton Carol-anne, Larmer James, MacRae Helen
Surgical Skills Centre at Mount Sinai Hospital, Department of Surgery, The University of Toronto, The Wilson Centre, 200 Elizabeth Street, Eaton South 1E 583, Toronto, Ontario, Canada M5G 2C5.
Am J Surg. 2007 Feb;193(2):269-73. doi: 10.1016/j.amjsurg.2006.07.013.
This study assessed the effects of learning laparoscopic knot-tying through a series of progressively more difficult steps versus learning the skill in full complexity.
Junior residents (N = 24) practiced either (1) suturing in full complexity under 2-dimensional conditions or (2) simple cone transfer drills under 3-dimensional and then 2-dimensional conditions, followed by suturing under 3-dimensional and then 2-dimensional conditions. Pre-, post-, and delayed (1 week) laparoscopic suturing performances were assessed by using objective motion efficiency variables and final product analyses.
Both groups showed similar improvements on all measures, which were well retained over the 1-week period (P < .01).
Despite spending less time practicing actual suturing, the group of residents who progressed through the sequence of steps performed as well as those who practiced the entire task in its full complexity, a finding that has implications for minimizing teaching resources and training costs.
本研究评估了通过一系列难度逐渐增加的步骤学习腹腔镜打结与学习完整复杂技能的效果。
初级住院医师(N = 24)要么(1)在二维条件下进行完整复杂的缝合练习,要么(2)在三维然后二维条件下进行简单的圆锥转移练习,随后在三维然后二维条件下进行缝合练习。通过使用客观运动效率变量和最终产品分析来评估腹腔镜缝合术前、术后和延迟(1周)的表现。
两组在所有测量指标上均显示出相似的改善,且在1周内保持良好(P <.01)。
尽管实际缝合练习时间较短,但按步骤进行练习的住院医师组与完整练习整个任务的组表现相当,这一发现对于最小化教学资源和培训成本具有重要意义。