[Optimal dates of surgery for acute calculous cholecystitis].

Objective: To analyze the results of surgical treatment of acute calculous cholecystitis depending on dates of surgery.

Material And Methods: There were 123 patients with acute calculous cholecystitis in 2017. The sample enrolled 111 females (90.

Detection and characterization of colorectal polyps using high-definition white light and i-Scan: Evidence-based consensus recommendations using a modified Delphi process.

Background: i-Scan is an image enhancement modality, which provides enhanced views of mucosal structures and vascular patterns.

Methods: A modified Delphi process was used to develop a series of evidence-based statements on the role of high-definition white light (HDWL) and i-Scan for the detection and diagnosis of colorectal neoplasms. Each statement was voted to achieve consensus (i.

[The results of endoscopic gastroduodenal, enteral and colorectal stenting for blastomatous stenosis: 8-year experience].

Introduction: Gastroduodenal, enteral and colorectal stenting of blastomatous stenosis is a reasonable alternative to operative treatment of unresectable tumors. Moreover in some cases it allows to gain time and to prepare the patient for radical surgery.

Material And Methods: For the period from 2007 to 2015 in endoscopic department of acad.

[Endoscopic treatment of advanced left colon cancer by stenting].

The aim of research is studying of technical capability of colorectal stenting, its clinical efficiency in permission of obstruction and an assessment of technique safety. Between October 2007 and January 2014 endoscopic stenting by self-expanding metal endoprostheses was successfully performed in 19 patients aged from 29 till 83 years with malig- nant stenoses of the left colon. Treatment was carried out in the endoscopic department of the Federal State Budgetary Institution "Petrovsky National Research Center of Surgery" under the Russian Academy of Medical Sciences.

[Modern concept of endoscopic treatment of cicatrical esophageal anastomotic strictures].

Authors analyze their 25-year experience of endoscopic treatment of benign cicatrical strictures of esophagus and esophageal anastomotic strictures. Special attention is paid to technical aspects of bouginage of critical (diameter up to 2 mm) and substantial (3-5 mm of esophagus lumen) esophageal strictures. The advantages of the bouginage in comparison with balloon dilatation are substantiated.

[Treatment of cicatricial esophageal strictures and esophageal anastomoses by using flexible endoscopes].

The paper presents the results of endoscopic treatment of benign esophageal strictures of various origin in 294 patients and of scar stenosis of esophageal anastomoses in 157 patients. The basic endoscopic techniques of expansion are balloon hydrodilatation by using catheters, 10-30 mm in diameter and bouginage of Savary's (maximum outside diameter 40 Fr) and Eder-Puestow's (with olives, 15-20 mm in diameter) bougies. Good and excellent direct results were obtained in 57.

[The immediate and late results of the endoscopic treatment of strictures of the esophageal anastomoses after esophagoplasty].

The article summarizes 11 years' experience (1986-1997) of endoscopical treatment for scar strictures of esophageal anastomoses in 13 patients after various types of esophagoplasty. In 65% of patients the diameter of the anastomosis did not exceed 5 mm. For distension of the anastomoses bouginage, balloon dilation and both of them were used.

[Vascular neoplasms of the mediastinum].

During a period of 42 years the authors had 44 patients with various vascular neoplasms of the mediastinum--angiomas. Experience in the treatment of 6 of them is discussed in B. V.