BACKGROUND: Laparoscopic surgery requires fundamental skills peculiar to endoscopic procedures such as eye-hand coordination. Acquisition of such skills prior to performing actual surgery is highly desirable for favorable outcome. Virtual-reality simulators have been developed for both surgical training and assessment of performance. The aim of the current study is to show construct validity of a novel simulator, LapVR (Immersion Medical, San Jose, CA, USA), for Japanese surgeons and surgical residents. METHODS: Forty-four subjects were divided into the following three groups according to their experience in laparoscopic surgery: 14 residents (RE) with no experience in laparoscopic surgery, 14 junior surgeons (JR) with little experience, and 16 experienced surgeons (EX). All subjects executed "essential task 1" programmed in the LapVR, which consists of six tasks, resulting in automatic measurement of 100 parameters indicating various aspects of laparoscopic skills. RESULTS: Time required for each task tended to be inversely correlated with experience in laparoscopic surgery. For the peg transfer skill, statistically significant differences were observed between EX and RE in three parameters, including total time and average time taken to complete the procedure and path length for the nondominant hand. For the cutting skill, similar differences were observed between EX and RE in total time, number of unsuccessful cutting attempts, and path length for the nondominant hand. According to the programmed comprehensive evaluation, performance in terms of successful completion of the task and actual experience of the participants in laparoscopic surgery correlated significantly for the peg transfer (P=0.007) and cutting skills (P=0.026). CONCLUSIONS: The peg transfer and cutting skills could best distinguish between EX and RE. This study is the first to provide evidence that LapVR has construct validity to discriminate between novice and experienced laparoscopic surgeons.
BACKGROUND: Laparoscopic surgery requires fundamental skills peculiar to endoscopic procedures such as eye-hand coordination. Acquisition of such skills prior to performing actual surgery is highly desirable for favorable outcome. Virtual-reality simulators have been developed for both surgical training and assessment of performance. The aim of the current study is to show construct validity of a novel simulator, LapVR (Immersion Medical, San Jose, CA, USA), for Japanese surgeons and surgical residents. METHODS: Forty-four subjects were divided into the following three groups according to their experience in laparoscopic surgery: 14 residents (RE) with no experience in laparoscopic surgery, 14 junior surgeons (JR) with little experience, and 16 experienced surgeons (EX). All subjects executed "essential task 1" programmed in the LapVR, which consists of six tasks, resulting in automatic measurement of 100 parameters indicating various aspects of laparoscopic skills. RESULTS: Time required for each task tended to be inversely correlated with experience in laparoscopic surgery. For the peg transfer skill, statistically significant differences were observed between EX and RE in three parameters, including total time and average time taken to complete the procedure and path length for the nondominant hand. For the cutting skill, similar differences were observed between EX and RE in total time, number of unsuccessful cutting attempts, and path length for the nondominant hand. According to the programmed comprehensive evaluation, performance in terms of successful completion of the task and actual experience of the participants in laparoscopic surgery correlated significantly for the peg transfer (P=0.007) and cutting skills (P=0.026). CONCLUSIONS: The peg transfer and cutting skills could best distinguish between EX and RE. This study is the first to provide evidence that LapVR has construct validity to discriminate between novice and experienced laparoscopic surgeons.
Authors: Neal E Seymour; Anthony G Gallagher; Sanziana A Roman; Michael K O'Brien; Vipin K Bansal; Dana K Andersen; Richard M Satava Journal: Ann Surg Date: 2002-10 Impact factor: 12.969
Authors: F J Carter; M P Schijven; R Aggarwal; T Grantcharov; N K Francis; G B Hanna; J J Jakimowicz Journal: Surg Endosc Date: 2005-10-26 Impact factor: 4.584
Authors: Pamela B Andreatta; Derek T Woodrum; John D Birkmeyer; Rajani K Yellamanchilli; Gerard M Doherty; Paul G Gauger; Rebecca M Minter Journal: Ann Surg Date: 2006-06 Impact factor: 12.969
Authors: Elspeth M McDougall; Federico A Corica; John R Boker; Leandro G Sala; Gabriela Stoliar; James F Borin; Frank T Chu; Ralph V Clayman Journal: J Am Coll Surg Date: 2006-05 Impact factor: 6.113
Authors: Derek T Woodrum; Pamela B Andreatta; Rajani K Yellamanchilli; Lauren Feryus; Paul G Gauger; Rebecca M Minter Journal: Am J Surg Date: 2006-01 Impact factor: 2.565
Authors: A Chellali; W Ahn; G Sankaranarayanan; J T Flinn; S D Schwaitzberg; D B Jones; Suvranu De; C G L Cao Journal: Surg Endosc Date: 2014-08-27 Impact factor: 4.584
Authors: Amine Chellali; Helena Mentis; Amie Miller; Woojin Ahn; Venkata S Arikatla; Ganesh Sankaranarayanan; Suvranu De; Steven D Schwaitzberg; Caroline G L Cao Journal: Int J Hum Comput Stud Date: 2016-07-09 Impact factor: 3.632
Authors: Terrell Holloway; Zachary S Lorsch; Michael A Chary; Stanislaw Sobotka; Maximillian M Moore; Anthony B Costa; Rolando F Del Maestro; Joshua Bederson Journal: Int J Comput Assist Radiol Surg Date: 2015-03-26 Impact factor: 2.924
Authors: Justin D Rivard; Ashley S Vergis; Bertram J Unger; Krista M Hardy; Chris G Andrew; Lawrence M Gillman; Jason Park Journal: Surg Endosc Date: 2014-01-18 Impact factor: 4.584
Authors: A Chellali; L Zhang; G Sankaranarayanan; V S Arikatla; W Ahn; A Derevianko; S D Schwaitzberg; D B Jones; M DeMoya; C G L Cao Journal: Surg Endosc Date: 2014-04-26 Impact factor: 4.584
Authors: Venkata S Arikatla; Ganesh Sankaranarayanan; Woojin Ahn; Amine Chellali; Suvranu De; G L Caroline; John Hwabejire; Marc DeMoya; Steven Schwaitzberg; Daniel B Jones Journal: Surg Endosc Date: 2012-12-14 Impact factor: 4.584