Weight Loss Analysis According to Different Formulas after Sleeve Gastrectomy With or Without Antral Preservation: a Randomised Study.

Background: The measurement of weight loss after bariatric surgery is under constant review in order to obtain the ideal standard for reporting weight loss. Several formulas have been proposed for this purpose. Our goal is to analyse weight loss after sleeve gastrectomy, with or without antrum preservation through different measurement formulas.

Usefulness of Baltasar's expected body mass index as an indicator of bariatric weight loss surgery.

Introduction: Determining the best indicator to report weight loss takes on special relevance following bariatric surgery. Our objective is to apply a method proposed by Baltasar et al. to express weight loss results following bariatric surgery.

Duodeno-jejunal tube placement in an experimental model of obesity: effects on food behaviour and basal energy expenditure.

Background: Metabolic surgery can modulate weight as well as food intake and basal energy expenditure. In this study, we evaluate the effectiveness of duodenal exclusion by analysing anthropometric results, intake variations, food behaviour and calorimetric parameters.

Methods: This is an experimental study with 8-week-old Sprague-Dawley male rats.

[Evaluation of surgical skills in medical students using a virtual simulator].

Introduction: The use of virtual simulators together with hospital practicals during undergraduate training can improve basic surgical skills, and may even be an important motivating focal point. The aim of this work is to determine the endoscopy skill level and its learning curve in three stages within the Medical degree (second, fourth, and sixth year) using a virtual simulator.

Material And Methods: The Lapsim simulator with 7 basic modular exercises was used.

Gastric volvulus after sleeve gastrectomy for morbid obesity.

Background: Laparoscopic sleeve gastrectomy in morbid obesity has proved to be a safe and reproducible technique. Sleeve gastrectomy, however, is not free of complications. On the other hand, gastric volvulus is reported in those subjects where, either because of laxity of the gastric anatomical fixations or incorrect position of the stomach, rotation or turning is facilitated.

Experimental metabolic surgery: justification and technical aspects.

Background: Metabolic surgery is a surgical strategy which has shown great potential in the treatment of diseases which may be associated with morbid obesity. It must be developed on the basis of both animal and clinical research. The objective of this study is to set out the various options in experimentation animals and the technical characteristics in operations, and the specific animal care undertaken by our group.

[Low cost simulator for acquiring basic laparoscopic skills].

Introduction: Laparoscopic surgery requires a different set of skills than conventional surgery. The aim of this study was to evaluate the usefulness of a low-cost simulator and camera for the acquisition of basic laparoscopic skills.

Material And Methods: This randomised trial involved 48 subjects (32 students and 16 surgeons).

[The effects of ileal transposition, gastrojejunal bypass and vertical gastroplasty on the regulation of ingestion in an experimental obesity model associated with diabetes mellitus type 2].

Aim: The continual advances in our knowledge of the pathogenesis and hormonal disorders of morbid obesity lead to new studies in experimental animals and the development of new technical options. The aim is to asses whether ileal transposition can be a good treatment of morbid obesity associated with diabetes mellitus due to the action of intestinal peptide Glp-1 (enteroglucagon) compared to gastric bypass and vertical gastroplasty (VGB).

Material And Methods: Trial environment: experimental animals ZDF rats (Zucker Diabetic Fatty rats).

Subfascial endoscopic perforator vein surgery (SEPS) modified technique: subaponeurotic approach without balloon.

Subfascial Endoscopic Perforator Vein Surgery (SEPS) is one of the best procedures and a minimally invasive option for treating chronic venous insufficiency. We explain our experience with SEPS, which has been turned into a subaponeurotic approach without balloon, and assess the possible advantages of this technique. The subaponeurotic space was entered using the Visiport Plus (Autusuture, Tyco Healthcare) video-assisted technique, which shows how the trocar enters through the subcutaneous tissue and superficial aponeurosis of the leg.

Influence of sleeve gastrectomy on several experimental models of obesity: metabolic and hormonal implications.

Background: Ghrelin is an important factor in the regulation of intake. Most ghrelin is synthesized in the gastric fundus, but this is not the only location. The aim of this experimental study was to analyze the effect of sleeve gastrectomy (removing fundus) on the volume of intake in four experimental models and determine how this relates to changes in weight, plasmatic levels of glycemia, ghrelin, GLP-1, and insulin.

The evolution of experimental surgery in the field of morbid obesity.

Background: We reviewed the experimental surgery, related to bariatric surgery in laboratory animals, to consider new lines of research.

Methods: The literature on experimental surgery for morbid obesity since the mid-20th century was reviewed, focusing on existing techniques (malabsorptive, restrictive, mixed and experimental) and their associated metabolic component.

Results: In the field of laparoscopy, there is a clear tendency for large laboratory animals such as pigs to be used.