Isgrò Gianmarco, Micali Salvatore, Pini Giovannalberto, De Stefani Stefano, Gelmini Roberta, Franzoni Chiara, Bianchi Giampaolo
Urology Department, "Policlinico" Hospital of Modena, University of Modena and Reggio Emilia, Modena - Italy.
Urologia. 2013 Sep-Dec;80(4):302-6. doi: 10.5301/urologia.5000026. Epub 2013 Sep 5.
To compare the differences between LESS and SL among a population of subjects inexperienced of both techniques.
Participants were randomly assigned to the LESS or SL arm of the course; between the population examined, none had previous laparoscopic experience. The trial consisted in performing three increasingly difficult exercises either with LESS or standard laparoscopy.
Time of execution and Objective Structured Assessment of Technical Skills score (OSATS) were recorded. Statistical analysis failed to detect any significant difference between the two arms of the trial. A trend in favor of standard laparoscopy was observed anyway.
Our study evaluates the technical performance on a surgical simulator in the laboratory setting, with the use of standardized tasks and validated metrics. We believe that a controlled and safe environment aids objective evaluation of LESS compared to SL. Literature on this particular topic is somehow conflicting and heterogeneous. Our trial demonstrated that novices performed LESS tasks without any additional difficulties compared to standard laparoscopy. The aim of such investigation is to support knowledge of this new technology in order to facilitate its use in selected patients and surgical procedures.
在对两种技术均无经验的受试者群体中比较LESS与标准腹腔镜手术（SL）之间的差异。
参与者被随机分配至课程的LESS组或SL组；在接受检查的人群中，无人有过腹腔镜手术经验。该试验包括使用LESS或标准腹腔镜进行三项难度逐渐增加的练习。
记录执行时间和技术技能客观结构化评估（OSATS）得分。统计分析未能检测到试验两组之间存在任何显著差异。不过，观察到了有利于标准腹腔镜手术的趋势。
我们的研究在实验室环境中使用标准化任务和经过验证的指标，在手术模拟器上评估技术性能。我们认为，与SL相比，可控且安全的环境有助于对LESS进行客观评估。关于这一特定主题的文献在某种程度上相互矛盾且参差不齐。我们的试验表明，与标准腹腔镜手术相比，新手在进行LESS任务时没有任何额外困难。此类研究的目的是支持对这项新技术的了解，以便于其在特定患者和手术中的应用。
