Laparoscopic Heller-Dor myotomy in elderly achalasia patients: a single center experience with PSM analysis.

Introduction: Achalasia is a rare esophageal motility disorder of unknown etiology. With the ageing of the general population, treatment in elderly patients has become increasingly common; however, the gold standard treatment in this population remains unclear. The aim of this study was to evaluate the outcomes of laparoscopic Heller-Dor myotomy (LHM) in geriatric patients.

Robotic Surgery in Achalasia: State of the Art.

Achalasia is a rare primary esophageal disorder characterized by impaired functioning of the lower esophageal sphincter. The goal of treatment is to reduce symptoms and improve the quality of life. The gold standard of surgical approach is Heller-Dor myotomy.

Laparoscopic left nephro-adrenalectomy for renal vein leiomyosarcoma using (ICG) fluorescence and 3D-CT reconstruction: A case report.

Introduction: Leiomyosarcoma is a rare malignant mesenchymal cancer of smooth muscle and about 50-60 % of cases are from inferior vena cava. Recently, preoperative reconstruction of three-dimensional (3D) images from computed tomography (CT) and intraoperative indocyanine green (ICG) are being developed. We present a case of laparoscopic left nephro-adrenalectomy using ICG fluorescence associated with 3D-CT reconstruction:n.

Iatrogenic biliary leak treated by performing exploratory laparoscopic using indocyanine green (ICG) fluorescence. A case report and review of literature.

Introduction: Cholangiography with indocyanine green fluorescence (ICG) is increasingly used to visualize the bile duct anatomy during laparoscopic cholecystectomy. Biliary leaks are rare complications after laparoscopic cholecystectomy, result could be lethal. Lesion's site is not always visible.

Laparoscopic atypical resection of subcardial gastric GIST guided by intraoperative endoscopy. A single-center study and a review of the literature.

Background: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. They are 1% of all gastrointestinal cancer and 60% of them affects the stomach. Up to 10% to 30% of GISTs are malignant.

Management of pheochromocytoma during pregnancy from diagnosis to laparoscopic adrenalectomy. A case report and review of literature.

Introduction: Pheochromocytoma is an endocrine tumour of chromaffin cells. It can be diagnosed either sporadically or in the context of hereditary syndromes (e.g.

A graph-based approach for the approximate solution of the chemical master equation.

The chemical master equation (CME) represents the accepted stochastic description of chemical reaction kinetics in mesoscopic systems. As its exact solution—which gives the corresponding probability density function—is possible only in very simple cases; there is a clear need for approximation techniques. Here, we propose a novel perturbative three-step approach, which draws heavily on graph theory: (i) we expand the eigenvalues of the transition state matrix in the CME as a series in a nondimensional parameter that depends on the reaction rates and the reaction volume; (ii) we derive an analogous series for the corresponding eigenvectors via a graph-based algorithm; (iii) we combine the resulting expansions into an approximate solution to the CME.