Powers Kinga A, Rehrig Scott T, Irias Noel, Albano Hedwig A, Malinow Andrew, Jones Stephanie B, Moorman Donald W, Pawlowski John B, Jones Daniel B
Section of Minimally Invasive Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA.
Surg Endosc. 2008 Apr;22(4):885-900. doi: 10.1007/s00464-007-9678-x. Epub 2007 Dec 11.
Diminishing human error and improving patient outcomes is the goal of task training and simulation experience. The fundamentals of laparoscopic surgery (FLS) is a validated tool to assess technical laparoscopic skills. We hypothesize that performance in a crisis depends on technical skills and team performance. The aim of this study was to develop and validate a high-fidelity simulation model of a laparoscopic crisis scenario in a mock endosuite environment.
To establish the feasibility of the model as well as its face and construct validity, the scenario evaluated the performances of FLS-certified surgeon experts (n = 5) and non-FLS certified novices (n = 5) during a laparoscopic crisis scenario, in a mock endosuite, on a simulated abdomen. Likert scale questionnaires were used for validity assessments. Groups were compared using previously validated rating scales on technical and nontechnical performance. Objective outcome measures assessed were: time to diagnose bleeding (TD), time to inform the team to convert (TT), and time to conversion to open (TC). SAS software was used for statistical analysis.
Median scores for face validity were 4.29, 4.43, 4.71 (maximum 5) for the FLS, non-FLS, and nursing groups, respectively, with an inter-rater reliability of 93%. Although no difference was observed in Veress needle safety and laparoscopic equipment set up, there was a significant difference between the two groups in their overall technical and nontechnical abilities (p < 0.05), specifically in identifying bleeding, controlling bleeding, team communication, and team skills. There was a trend towards a difference between the two groups for TD, TT, and TC. While experts controlled bleeding in a shorter time, they persisted longer laparoscopically.
Our evidence suggests that face and construct validity are established for a laparoscopic crisis simulation in a mock endosuite. Technical and nontechnical performance discrimination is observed between novices and experts. This innovative multidisciplinary simulation aims at improving error/problem recognition and timely initiation of appropriate and safe responses by surgical teams.
减少人为失误并改善患者治疗效果是任务培训和模拟体验的目标。腹腔镜手术基础(FLS)是评估腹腔镜技术技能的有效工具。我们假设在危机中的表现取决于技术技能和团队表现。本研究的目的是在模拟内镜套件环境中开发并验证腹腔镜危机场景的高保真模拟模型。
为确定该模型的可行性及其表面效度和结构效度,该场景评估了获得FLS认证的外科专家(n = 5)和未获得FLS认证的新手(n = 5)在模拟内镜套件中的模拟腹部上进行腹腔镜危机场景时的表现。使用李克特量表问卷进行效度评估。使用先前验证的技术和非技术表现评分量表对各组进行比较。评估的客观结果指标为:诊断出血时间(TD)、通知团队转为开腹手术的时间(TT)以及转为开腹手术的时间(TC)。使用SAS软件进行统计分析。
FLS组、非FLS组和护理组的表面效度中位数分别为4.29、4.43、4.71(满分5分),评分者间信度为93%。虽然在Veress针安全性和腹腔镜设备设置方面未观察到差异,但两组在总体技术和非技术能力方面存在显著差异(p < 0.05),特别是在识别出血、控制出血、团队沟通和团队技能方面。两组在TD、TT和TC方面存在差异趋势。虽然专家控制出血的时间较短,但他们腹腔镜手术持续的时间更长。
我们的证据表明,在模拟内镜套件中进行的腹腔镜危机模拟具有表面效度和结构效度。在新手和专家之间观察到了技术和非技术表现的差异。这种创新的多学科模拟旨在提高手术团队对错误/问题的识别能力,并及时启动适当和安全的应对措施。