Quantification of hemi-hepatic ischemia using real-time multispectral oxygenation imaging with single snapshot imaging of optical properties (SSOP).

Background: Identifying liver ischemia is crucial in liver surgery. This study aimed to develop a hemi-hepatic ischemia model for assessing liver ischemia using single snapshot imaging of optical properties (SSOP), a noninvasive optical imaging modality that provides real-time measurements of tissue oxygen saturation (StO2).

Materials And Methods: Twelve swine were randomly assigned to two groups: One undergoing total vascular inflow occlusion (TVIO) and the other undergoing hepatic artery occlusion (HAO).

Risk factors for in-hospital mortality after emergency colorectal surgery in octogenarians: results of a cohort study from a referral center.

Purpose: The objective of this study was to investigate predictive factors of mortality in emergency colorectal surgery in octogenarian patients.

Methods: It is a retrospective cohort study conducted at a single-institution tertiary referral center. Consecutive patients who underwent emergency colorectal surgery between January 2015 and January 2020 were identified.

End-to-end invaginated pancreaticojejunostomy during minimally invasive pancreatoduodenectomy: technical description and single center experience.

Background: Remarkable progress has been made in pancreatic surgery over the last decades with the introduction of minimally invasive techniques. Minimally invasive pancreatoduodenectomy (MIPD) remains one of the most challenging operations in abdominal surgery and it is performed in a few centers worldwide. The treatment of the pancreatic stump is a crucial step of this operation; however, the best strategy to perform pancreatic anastomosis is still debated.

Laparoscopy-assisted vs open total gastrectomy with D2 lymphadenectomy for advanced gastric cancer: results of a retrospective, multicenter study.

The aim of this study was to retrospectively compare the results of laparoscopy-assisted total gastrectomy (LATG) with those of open total gastrectomy (OTG) for advanced gastric cancer. Patients undergoing total gastrectomy for a T4a, N0-3a-b, M0 gastric adenocarcinoma were divided into two groups. Patients in group A (n = 122) underwent LAG, whereas patients in group B (n = 109) underwent OTG.

One-stage approach to cholecystocholedocholithiasis treatment: a feasible surgical strategy for emergency settings and frail patients.

Background: Cholecystocholedocholithiasis (CCL) occurs in up to 18% of patients undergoing laparoscopic cholecystectomy (LC). The two-stage treatment using endoscopic retrograde cholangiopancreatography (ERCP) followed by LC is the treatment of choice for CCL. However, only 10 to 60% of patients have common bile duct (CBD) stones at the time of ERCP, thus exposing patients to unnecessary ERCPs, causing 3 to 15% of post-interventional pancreatitis.

Intraoperative bowel perfusion quantification with hyperspectral imaging: a guidance tool for precision colorectal surgery.

Background: Poor anastomotic perfusion can cause anastomotic leaks (AL). Hyperspectral imaging (HSI), previously validated experimentally, provides accurate, real-time, contrast-free intestinal perfusion quantification. Clinical experience with HSI is limited.

Impact of surgical repair on type IV paraesophageal hernias (PEHs).

Background: Paraesophageal hernias (PEHs; types II-III-IV) account for about 5% of all hiatal hernias (HHs). The peculiarity of PEHs is the presence of a herniated sac which contains a more or less important part of the stomach, along with other abdominal organs in type IV PEHs. Surgical treatment is more complex since it requires a reduction not only of the herniated content but also of the "container," namely the sac adherent to mediastinal structures.

Laparoscopic Versus Open Hartmann Reversal: A Case-Control Study.

Background: Laparoscopic reversal of Hartmann's procedure (LHR) offers reduced morbidity compared with open Hartmann's reversal (OHR). The aim of this study is to compare the outcome of laparoscopic versus open Hartmann reversal.

Materials And Methods: Thirty-four patients who underwent Hartmann reversal between January 2017 and July 2019 were evaluated.

Development and Validation of a Predictive Model for Internal Hernia After Roux-en-Y Gastric Bypass in a Multicentric Retrospective Cohort: The Swirl, Weight Excess Loss, Liquid Score.

Objective: The aim of this study was to develop and validate a prediction score for internal hernia (IH) after Roux-en-Y gastric bypass (RYGB).

Summary Background Data: The clinical diagnosis of IH is challenging. A sensitivity of 63% to 92% was reported for computed tomography (CT).

Autologous peritoneal graft for venous vascular reconstruction after tumor resection in abdominal surgery: a systematic review.

Radical surgical resection (R0) is the only option to cure patients with borderline resectable or multivisceral intraabdominal malignancies involving major vessels. Autologous peritoneal flap has been described as a safe and versatile option for vascular reconstruction, but still limited experience exists regarding its use. An extensive literature review was performed to analyze results of vascular reconstruction with an autologous peritoneal graft.

6-Month Gastrointestinal Quality of Life (QoL) Results after Endoscopic Sleeve Gastroplasty and Laparoscopic Sleeve Gastrectomy: A Propensity Score Analysis.

Background: Laparoscopic sleeve gastrectomy (LSG) is currently the most commonly performed bariatric procedure. Endoscopic sleeve gastroplasty (ESG) is a promising new bariatric technique which is less invasive in its approach. To date no study has compared quality of life (QoL) outcomes between LSG and ESG.

Does endoscopic sleeve gastroplasty stand the test of time? Objective assessment of endoscopic ESG appearance and its relation to weight loss in a large group of consecutive patients.

Introduction: Endoscopic sleeve gastroplasty (ESG) is a promising bariatric treatment. Gastric volume reduction and delayed gastric emptying are the probable mechanisms driving weight loss. However, there are concerns regarding the overtime ESG effectiveness.

Simultaneous computer-assisted assessment of mucosal and serosal perfusion in a model of segmental colonic ischemia.

Background: Fluorescence-based enhanced reality (FLER) enables the quantification of fluorescence signal dynamics, which can be superimposed onto real-time laparoscopic images by using a virtual perfusion cartogram. The current practice of perfusion assessment relies on visualizing the bowel serosa. The aim of this experimental study was to quantify potential differences in mucosal and serosal perfusion levels in an ischemic colon segment.

Full Robotic Distal Pancreatectomy: Safety and Feasibility Analysis of a Multicenter Cohort of 236 Patients.

. Despite the widespread use of the robotic technology, only a few studies with small sample sizes report its application to pancreatic diseases treatment. Our aim is to present the results of a multicenter study on the safety and feasibility of robot-assisted distal pancreatectomy (RDP).

Hybrid fluorescent magnetic gastrojejunostomy: an experimental feasibility study in the porcine model and human cadaver.

Background: Laparoscopic gastrojejunostomies are time consuming and require a specific training. Alternatively, sutureless anastomosis can be achieved using endoscopically delivered magnetic rings. Our aim was to assess the feasibility and reproducibility of an endo-laparoscopic gastrojejunostomy technique, using a pair of magnets coated with a near-infrared fluorescent biocompatible polymeric material.

Correction to: Discrimination between arterial and venous bowel ischemia by computer-assisted analysis of the fluorescent signal.

In the original version, Ines Gockel was omitted as a coauthor. The complete author listing is corrected here.

Thermal ablation of pancreatic cancer: A systematic literature review of clinical practice and pre-clinical studies.

Purpose: Pancreatic cancer is a challenging malignancy with low treatment option and poor life expectancy. Thermal ablation techniques were proposed as alternative treatment options, especially in advanced stages and for unfit-for-surgery patients. This systematic review describes the thermal ablative techniques -i.

Virtual and Augmented Reality in Oncologic Liver Surgery.

Virtual reality (VR) and augmented reality (AR) in complex surgery are evolving technologies enabling improved preoperative planning and intraoperative navigation. The basis of these technologies is a computer-based generation of a patient-specific 3-dimensional model from Digital Imaging and Communications in Medicine (DICOM) data. This article provides a state-of-the- art overview on the clinical use of this technology with a specific focus on hepatic surgery.

Discrimination between arterial and venous bowel ischemia by computer-assisted analysis of the fluorescent signal.

Background: Arterial blood supply deficiency and venous congestion both play a role in anastomotic complications. Our aim was to evaluate a software-based analysis of the fluorescence signal to recognize the patterns of bowel ischemia.

Methods: In 18 pigs, two clips were applied on the inferior mesenteric artery (group A: n = 6) or vein (group V: n = 6) or on both (group A-V: n = 6).

Laser ablation of the biliary tree: in vivo proof of concept as potential treatment of unresectable cholangiocarcinoma.

Objectives: The palliative treatment of cholangiocarcinoma is based on stent placement with well-known procedure-related complications. Consequently, alternative energy-based techniques were put forward with controversial long-term results. This study aims to evaluate the safety and effectiveness of biliary tree laser ablation (LA) in terms of: (i) absence of perforation, (ii) temperature increase, (iii) induced thermal damage in in vivo models.

Preoperative risk factors in total thyroidectomy of substernal goiter.

The definition of substernal goiter (SG) is based on variable criteria leading to a considerable variation in the reported incidence (from 0.2% to 45%). The peri- and postoperative complications are higher in total thyroidectomy (TT) for SG than that for cervical goiter.