Crawshaw Benjamin P, Steele Scott R, Lee Edward C, Delaney Conor P, Mustain W Conan, Russ Andrew J, Shanmugan Skandan, Champagne Bradley J
1 Department of Colorectal Surgery, University Hospitals Case Medical Center, Cleveland, Ohio 2 Department of Colorectal Surgery, Madigan Army Medical Center, Fort Lewis, Washington 3 Department of Colorectal Surgery, Albany Medical Center, Albany, New York.
Dis Colon Rectum. 2016 Jan;59(1):28-34. doi: 10.1097/DCR.0000000000000503.
Laparoscopic colorectal resection is an index case for advanced skills training, yet many residents struggle to reach proficiency by graduation. Current methods to reduce the learning curve for residents remain expensive, time consuming, and poorly validated.
The purpose of this study was to assess the impact of the addition of a preprocedural instructional video to improve the ability of a general surgery resident to perform laparoscopic right colectomy when compared with standard preparation.
This was a single-blinded, randomized control study.
Four university-affiliated teaching hospitals were included in the study.
General surgery residents in postgraduation years 2 through 5 participated.
Residents were randomly assigned to preparation with a narrated instructional video versus standard preparation.
Resident performance, scored by a previously validated global assessment scale, was measured.
Fifty-four residents were included. Half (n = 27) were randomly assigned to view the training video and half (n = 27) to standard preparation. There were no differences between groups in terms of training level or previous operative experience or in patient demographics (all p > 0.05). Groups were similar in the percentage of the case completed by residents (p = 0.39) and operative time (p = 0.74). Residents in the video group scored significantly higher in total score (mean: 46.8 vs 42.3; p = 0.002), as well as subsections directly measuring laparoscopic skill (vascular control mean: 11.3 vs 9.7, p < 0.001; mobilization mean: 7.6 vs. 7.0, p = 0.03) and overall performance score (mean: 4.0 vs 3.1; p < 0.001). Statistical significance persisted across training levels.
There is potential for Hawthorne effect, and the study is underpowered at the individual postgraduate year level.
The simple addition of a brief, narrated preprocedural video to general surgery resident case preparation significantly increased trainee ability to successfully perform a laparoscopic right colectomy. In an era of shortened hours and less exposure to cases, incorporating a brief but effective instructional video before surgery may improve the learning curve of trainees and ultimately improve safety.
腹腔镜结直肠切除术是高级技能培训的一个典型案例,但许多住院医师在毕业时仍难以达到熟练水平。目前降低住院医师学习曲线的方法仍然昂贵、耗时且验证不足。
本研究的目的是评估与标准准备相比,增加术前教学视频对普通外科住院医师进行腹腔镜右半结肠切除术能力的影响。
这是一项单盲随机对照研究。
四家大学附属医院纳入了该研究。
毕业2至5年的普通外科住院医师参与。
住院医师被随机分配为观看带旁白的教学视频进行准备与标准准备。
通过先前验证的整体评估量表对住院医师的表现进行评分。
纳入了54名住院医师。一半(n = 27)被随机分配观看培训视频,另一半(n = 27)进行标准准备。两组在培训水平、既往手术经验或患者人口统计学方面无差异(所有p>0.05)。两组在住院医师完成手术的比例(p = 0.39)和手术时间(p = 0.74)方面相似。视频组住院医师的总分显著更高(平均值:46.8对42.3;p = 0.002),以及直接测量腹腔镜技能的子部分(血管控制平均值:11.3对9.7,p < 0.001;游离平均值:7.6对7.0,p = 0.03)和整体表现评分(平均值:4.0对3.1;p < 0.001)。统计显著性在各培训水平上均持续存在。
存在霍桑效应的可能性,且该研究在各个研究生年级水平上的效力不足。
在普通外科住院医师的病例准备中简单添加一个简短的带旁白的术前视频,可显著提高学员成功进行腹腔镜右半结肠切除术的能力。在工作时长缩短且接触病例较少的时代,在手术前加入一个简短但有效的教学视频可能会改善学员的学习曲线并最终提高安全性。