To compare the performance of surgical suturing using Da Vinci Robotic Surgical System and conventional Laparoscopic surgical suturing among novice
Background Da Vinci® Robotic Surgical System (DVRSS) has been widely applied to perform complex minimally invasive surgical procedures across different specialties. This study aimed to investigate the impact of DVRSS on surgical proficiencies among inexperience novice surgeons and compared to conventional laparoscopic surgery. Methods Twenty medical students (n=20) without surgical experience were enrolled. After a constructive training for basic surgical techniques, participants were randomly allocated into DVR or laparoscopy group. Participants were asked to close five cases (also named five tasks) of a 2cm long incision on pig stomach by using DVR or laparoscopy. Surgical time, successful closure rate and pneumatic bursting pressure of gastric incision withstanding were recorded. In addition, participant performance and workload were quantified by using performance score, scales of Global Rating Scale Assessment (GSA) and NASA-Task Load Index (NASATLI).
Study Type
OBSERVATIONAL
Enrollment
20
CUHK Jockey Club Minimally Invasive Surgical Skills Center
Hong Kong SAR, China
Task performance
The performance of participants for each task would be assessed by objective scoring scale basing on the task completion time, plus well-defined errors during suturing and tying knot.
Time frame: 1 day
Rate of success in closure of gastrotomy
The success in closure of the standardized gastrotomy was defined as followings: (1) The gastrotomy must be closed with 20 minutes using a 10 cm-long suture with intracorporeal knots tying; (2) Sutures should not be broken during the experiment.
Time frame: 1 day
Pneumatic bursting pressure for gastric incision
The efficiency of the two groups in using DVRSS and laparoscopic suturing for closure of gastrotomy was assessed by the maximal pneumatic bursting pressure that the suture line could withstand.
Time frame: 1 day
Assessment of participant workload
Participant workload was assessed by using National Aeronautics and Space Administration-task load index scale (NASATLX) after completion of each task. The scale focused on six domains, including mental, physical and temporal demand, as well as performance, effort and frustration.
Time frame: 1 day
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