Mishra Shashi K, Ganpule A, Kurien A, Muthu V, Desai Mahesh R
Department of Urology and Nephrology, Muljibhai Patel Society for Research in Nephrourology, Muljibhai Patel Urological Hospital, Nadiad - 387 001, Gujarat, India.
Indian J Urol. 2008 Jan;24(1):35-8. doi: 10.4103/0970-1591.38601.
Laparoscopic surgical simulation is a valuable training tool for urology trainees.
We assessed the validity of task completion time (TCT) as an objective tool for practicing and acquiring technical skills in a simulated laparoscopy environment.
Fifteen participants comprising postgraduate urology trainees from first to third year (n = 12), urology fellow (n = 1) and consultants (n = 2) underwent basic laparoscopic training on the "Beetle Universal" endotrainer. Training included 10 attempts each comprising four tasks; placing a ball in a cup (Task 1), threading five rings (Task 2), threading five balls (Task 3) and tying a suture (Task 4). Individual task (IT) time was measured. The TCT was defined as sum of IT time for a single attempt.
Statistical analysis was done by Pearson's correlation coefficient and student's t test using SPSS software 10.
The average TCT for the first attempt to complete the four tasks by the participants was 76.5 +/- 13.0 min (range 38 to 92.5, skew -1.8), compared to the 10(th) attempt 33 +/- 4.23 min (range 25 to 38.5, skew -0.5). There was statistically significant correlation (r = mean -0.91, range -0.97 to -.83, skew -0.5), (P = < 0.001) between the number of attempts and decreasing TCT for all participants. Correlation decreased when TCT between the sixth to 10(th) attempt was compared (r = mean -0.67, range -0.99 to 0.76).
The TCT is practical, easy and a valid objective tool for assessing acquired technical skills of urology trainees in a laparoscopic simulated environment.
腹腔镜手术模拟是泌尿外科实习生的一种有价值的训练工具。
我们评估了任务完成时间（TCT）作为在模拟腹腔镜环境中练习和获得技术技能的客观工具的有效性。
15名参与者包括一至三年级的泌尿外科研究生实习生（n = 12）、泌尿外科住院医师（n = 1）和顾问医师（n = 2），在“甲壳虫通用”内镜训练器上接受了基础腹腔镜训练。训练包括10次尝试，每次尝试包含四项任务：将一个球放入杯中（任务1）、穿五个环（任务2）、穿五个球（任务3）和打结（任务4）。测量了各个任务（IT）时间。TCT定义为单次尝试的IT时间总和。
使用SPSS软件10通过Pearson相关系数和学生t检验进行统计分析。
参与者首次完成四项任务的平均TCT为76.5±13.0分钟（范围38至92.5，偏度-1.8），而第10次尝试时为33±4.23分钟（范围25至38.5，偏度-0.5）。对于所有参与者，尝试次数与TCT降低之间存在统计学显著相关性（r =平均值-0.91，范围-0.97至-0.83，偏度-0.5），（P = <0.001）。比较第6至10次尝试之间的TCT时，相关性降低（r =平均值-0.67，范围-0.99至0.76）。
TCT是一种实用、简便且有效的客观工具，可用于评估泌尿外科实习生在腹腔镜模拟环境中获得的技术技能。
