Tailored-surgery for locally advanced colon cancer based on 3D mathematical reconstruction surgical planner: Observational comparative non-randomized study.

Background: This study investigates the effectiveness of a three-dimensional reconstruction mathematical model (3D-IPR) for preoperative planning in locally advanced colon cancer (LACC) with threatened surgical margins. The objective was to evaluate the utility of a 3D-IPR surgical planner tool in cases of LACC with threatened surgical margins. Additionally, the study aims to compare the diagnostic accuracy of the 3D-IPR model against conventional CT scans in determining the infiltration of neighboring structures.

3D-reconstruction printed models and virtual reality improve teaching in oncological colorectal surgery.

Background: This study aimed to evaluate the use of 3D image processing and reconstruction (3D-IPR) combined with virtual reality (VR) technology and printed models (PM) as teaching tools in oncological colorectal surgery.

Methods: We designed two courses, one for general surgery trainees and another for young colorectal surgeons, structured around stations of pre-test, anatomical lessons, real-case presentations, 3D-IPR models, VR experiences, and life-size abdominal PM with surgical approach explanations and a final post-test.

Results: Fourteen course participants were evaluated.

Proposal for standardization of laparoscopic D3 lymphadenectomy for right colon cancer.

Background: This study presents a laparoscopic surgical protocol for right hemicolectomy and D3 lymphadenectomy (R-D3L) in right colon cancer and reports the oncological outcomes based on a prospective series.

Methods: The study comprises two phases. In the first phase, a dynamic demonstration of the R-D3L surgical protocol is provided through textual explanation, illustrations, and edited surgical videos.

Simultaneous Surgical Approach with Hyperthermic Intraperitoneal Chemotherapy (HIPEC) in Patients with Concurrent Peritoneal and Liver Metastases of Colon Cancer Origin.

: Simultaneous liver resection and peritoneal cytoreduction with hyperthermic intraperitoneal chemotherapy (HIPEC) remains controversial today. The aim of the study was to analyze the postoperative outcomes and survival of patients with advanced metastatic colon cancer (peritoneal and/or liver metastases). Retrospective observational study from a prospective maintained data base.

WITHDRAWN: Bacteroides thetaiotaomicron necrotizing fasciitis as presentation of colorectal cancer, with subsequent cutaneous exteriorization.

Ahead of Print article withdrawn by publisher. An 80-year-old woman presented necrotizing fasciitis on the right flank, requiring debridement. Tomography reported ascending colon neoplasm fistulized to the skin.

Three-dimensional modelling as a novel interactive tool for preoperative planning for complex perianal fistulas in Crohn's disease.

Aim: The aim of this study is to demonstrate the added value of three-dimensional (3D) reconstruction models and artificial intelligence for preoperative planning in complex perianal Crohn's disease. MRI is the gold standard for diagnosis of complex perianal fistulas and abscess due to its high sensitivity, but it lacks high specificity values. This creates the need for better diagnostic models such as 3D image processing and reconstruction (3D-IPR) with artificial intelligence (AI) algorithms.

Application of 3D-reconstruction and artificial intelligence for complete mesocolic excision and D3 lymphadenectomy in colon cancer.

Mathematical algorithms 3D-reconstruction techniques and artificial intelligence are a current line of innovation in colorectal surgical oncology. The objective of this study is to show the initial experience of a 3D image processing and reconstruction system to perform complete mesocolic excision and D3-lymphadenectomy in colon cancer. It is applied to a splenic flexure neoplasm and in a right colon cancer with suspected retroperitoneal infiltration.

Analysis of potential risk factors in the survival of patients with primary retroperitoneal liposarcoma.

Introduction: The present work is an observational study of a series of variables regarding overall survival and disease-free survival in patients diagnosed with primary liposarcoma.

Methods: The study is prospective with retrolective data collection that includes all patients with primary liposarcoma referred to Hospital Son Espases University Hospital, Palma de Mallorca, Spain from January 1990 to December 2019.

Results: The study includes 50 patients and the compartment surgery was performed in 18 patients (36%) of cases.

Near-infrared fluorescence cholangiography at a very low dose of indocyanine green: quantification of fluorescence intensity using a colour analysis software based on the RGB color model.

Background: Indocyanine green (ICG) near-infrared fluorescence cholangiography (NIRF-C) is widely used to visualize the biliary tract during laparoscopic cholecystectomy (LC). However, the ICG dose and its dosing time vary in the literature so there is not a standard ICG protocol. The objectives of this descriptive prospective study were to demonstrate that NIRF-C at a very low dose of ICG provides good visualization of the extrahepatic biliary tree while avoiding hepatic hyperluminescence and to assess the surgeon-perceived benefit.

Anal intraepithelial neoplasia screening in patients with human immunodeficiency virus infection.

Introduction: the incidence of anal cancer has increased in recent years, making screening and early detection of anal intraepithelial neoplasia (AIN) a necessity in patients at risk.

Methods: a descriptive observational study of homosexual patients (MSM) or women with cervical intraepithelial neoplasia (CIN) III, with human immunodeficiency virus (HIV) infection, included in an AIN detection screening program was carried out between March 2016 and September 2019.

Results: we have performed 695 anal smears, 156 with results of LSIL (low-grade lesion) or HSIL (high-grade lesion) (22.

Cephalic pancreaticoduodenectomy for ductal adenocarcinoma in the elderly. Can we do it safely?

Introduction: Surgery and chemotherapy have increased the survival of pancreatic cancer. The decrease in postoperative morbidity and mortality and increase in life expectancy, has expanded the indications por cephalic pancreaticoduodenectomy (PDC), although it remains controversial in the geriatric population.

Methods: Retrospective study on a prospective database of patients with ductal adenocarcinoma of pancreas who underwent PDC between 2007-2018.

High rate of de novo esophagitis 5 years after sleeve gastrectomy: a prospective multicenter study in Spain.

Background: Major concerns years after the sleeve gastrectomy (SG) include weight regain, development of hiatal hernia (HH) and gastroesophageal reflux disease, with esophagitis and Barrett's esophagus (BE). Both problems could be related, and the incidence of asymptomatic patients is troubling.

Objective: To study the incidence of reflux symptoms, esophagitis, BE, HH, and asymptomatic pathology and their relationship with weight regain in patients 5 years after undergoing SG at different bariatric centers in Spain.

Laparoscopic treatment in gastrointestinal bleeding due to Dieulafoy's lesion.

Dieulafoy's lesion is a rare cause of gastrointestinal bleeding. Produced by the erosion of aberrant vessels in the submucosa, usually at the gastric level. The jejunal location is unusual.

Analysis of potential risk factors in the survival of patients with primary retroperitoneal liposarcoma.

Introduction: The present work is an observational study of a series of variables regarding overall survival and disease-free survival in patients diagnosed with primary liposarcoma.

Methods: The study is prospective with retrolective data collection that includes all patients with primary liposarcoma referred to Hospital Son Espases University Hospital, Palma de Mallorca, Spain from January 1990 to December 2019.

Results: The study includes 50 patients and the compartment surgery was performed in 18 patients (36%) of cases.

Abdominal metastatic melanoma invading the transverse colon and stomach.

Gastrointestinal melanoma metastases are not uncommon, with the jejunum and ileum being the most common locations (58 %), followed by the stomach (26 %), colon (22 %), duodenum (12 %), and rectum (5 %).