Endoscopy nurse in a unique specialist in healthcare, combining duties of routine nurse work and professional assistance for doctors in performing high-technology endoscopic examinations and treatment procedures with modern endoscopic equipment. For now, endoscopy is not only routine examinations of upper and lower GI tract. Novel endoscopy is fast evolving with modern technologies, such as high definition narrow-band imaging, confocal laser endomicroscopy and endocy-toscopy, providing up to 1000 times magnification of mucosa. Moreover, endoscopic treatment procedures-endoscopic mucosal resection, submucosal dissection, endoscopic stenting and many more are widely used for treatment of early cancers and palliative care. Endoscopic nurse assists physician in all these examinations and procedures. Furthermore, in some countries, endoscopy nurse performs easy endoscopic examinations by herself. In most countries, but not in Russia, endoscopic equipment reprocessing performed by dedicated technical staff, not by endoscopy nurse. Unfortunately, in Russian Federation, in compare to other countries, there is no endoscopy nurse certification or professional guidelines.

Due to the fact that malignant lung diseases occupy the first place in the structure of onco-pathology, the development and introduction into clinical practice of intraluminal endoscopic methods of treatment is relevant and promising. Photodynamic therapy (PDT) has proved to be one of such methods. The use of this technique makes it possible in some cases to achieve significant regression in patients with central lung cancer (CLC). This article presents a clinical example of the treatment of a patient with cancer of the main right bronchus with complete obstruction of its lumen by tumor tissue. The result of the application of this method of treatment was the restoration of complete patency of the bronchial lumen after two sessions of PDT

The article analyzes the statistical data of the work of the endoscopy unit of N. Tagil hospital № 1 from 2013 to the first half of 2022 (except 2020-21, when the hospital was completely redesigned as a COVID-hospital). Direct relationship between the increase of the gastrointestinal tract cancer detection and the modern endoscopy technical equipment due to modernization of primary health care program in the Sverdlovsk region in 2021 is presented. Based on evidence-based medicine data and risk-based approaches the importanceof the expert-class equipment in the routine endoscopic practice in the primary healthcare district hospital for diagnosing early gastrointestinal cancer is shown. Modern approaches to optical endoscopic diagnostics are analyzed, as well as the potential risks of diagnostic errors associated with technical equipment and possible measures to reduce these risks for further improvement of primary endoscopic diagnostics aimed on detecting gastrointestinal cancer in the early stages are determined, the expediency of equipping endoscopic units of primary care medical organizations with endoscopes which have magnification functions, as well as functions of photo and video recording of digital images with the possibility of archiving, color printing and further expert analysis of endoscopic images. The presented statistical data clearly show that with the improvement of the equipment quality, the detection of gastrointestinal cancer of various localizations is growing.

Based on 45 years of experience in teaching endoscopy, the author focuses the attention of endoscopists on the correct description of the endoscopic picture of chronic bronchitis and endoscopic conclusion, pointing out the most common errors.

The article presents a case of endoscopic treatment of a rare complication of retrograde bile duct stenting. A 69-year-old female patient underwent stenting of the common bile duct with a plastic stent for choledocholithiasis, obstructive jaundice and stricture of the terminal portion of the common bile duct. In the postoperative period, the stent migrated proximally. A liver abscess also developed. This required performing percutaneous transhepatic drainage of the abscess under sonoscopic guidance. The use of the SpyGlass system for oral transpapillary cholangioscopy made it possible to remove the migrated stent and avoid open surgery.

The article is dedicated to the VI Eurasian Forum «UralEndo» held in Yekaterinburg in August 2022. Among the most actual topics of the forum this year were the issues of practical implementation in the practice of medical organizations at all levels, starting with primary care. The focus was on cancer screening, as well as the organization of the work of endoscopic units based on risk-oriented approaches in order to improve the safety and quality of endoscopic procedures for the patients benefits.