Changes on Adipose Tissue Distribution After Laparoscopic Roux-en-Y Gastric Bypass in Obese Göttingen Minipig. Effects on Glucose Metabolism.

Background: The objective of the study was to assess Roux-en-Y independent-to-weight metabolic effects on an obese Gottingen minipig.

Methods: Eleven castrated Göttingen minipigs were enrolled. Minipigs became obese after a 9-month period of experimental diet.

Endoscopic and histological evaluations of a newly designed inguinal hernia mesh implant: Experimental studies on porcine animal model and human cadaver.

Purpose: Conventional prostheses used for inguinal hernia repair are static and passive. This feasibility-study shows the features of a new 3D tension-free prosthesis in an experimental model.

Methods: This study was divided into two-phases: 1) aimed to test the physics intrinsic features and the anatomical adaptability of a new 3D designed mesh, and 2) aimed to evaluate the inflammatory reaction associated with different materials used.

Comparison of single access devices during cut and suturing tasks on simulator.

Background: Published comparisons of the different available laparoendoscopic single-site surgery (LESS) devices focused on its economic cost and technical aspects. With this study, we aimed to objectively compare the use of three different LESS access devices in controlled experimental tasks.

Materials And Methods: Twenty subjects participated in simulator trials.

Application of a motion capture data glove for hand and wrist ergonomic analysis during laparoscopy.

Objectives: This study aims to analyze the surgeons' hand spatial configuration during the use of two different instrument handles for laparoscopy, by obtaining information from the data glove CyberGlove®, and establishing existing risk levels for wrist disorders.

Material And Methods: Fifty surgeons participated in this study and were distributed into three groups (novices, intermediate and experts). Each subject carried out suturing and dissection tasks on a physical simulator, using axial-handled or ring-handled instruments, respectively.

Development and initial assessment of a training program for laparoscopic radical prostatectomy. First module: the urethrovesical anastomosis.

Purpose: We present our experience in the design and development of a training program in laparoscopic radical prostatectomy (LRP), and the validation of the first steps of the program by objective measurement of the attendants' skills improvement and subjective evaluation of its contents.

Materials And Methods: Our training model on LRP has a total duration of 42 hours, divided in two modules of 21 hours each, performed 1 month apart. Data included in the present study were obtained from the first module of our course.

Performance analysis on physical simulator of four different instrument setups in laparo-endoscopic single-site (LESS) surgery.

Background: Over the past decades, minimally invasive surgery has undergone continuous development due to the demand for scarless results, with laparo-endoscopic single-site (LESS) surgery constituting one of today's most favored alternatives. In this study, we aim to assess the relative technical difficulty and performance benefits of dynamic articulating and pre-bent instruments, either combined with conventional laparoscopic tools or not, during the completion of two basic tasks hands-on simulator.

Methods: A total of 20 surgeons were included and performed two basic simulator tasks-coordination and cutting-carried out using four different combinations of LESS-designed and straight conventional laparoscopy instruments.