ЧАСТОТА ВЫЯВЛЕНИЯ ЦИЛИНДРОКЛЕТОЧНОЙ МЕТАПЛАЗИИ И АДЕНОКАРЦИНОМЫ ПИЩЕВОДА У ЖИТЕЛЕЙ ЛЕНИНГРАДСКОЙ ОБЛАСТИ (по данным эзофагогастродуоденоскопии)

The incidence of esophageal adenocarcinoma among the population in economically developed countries has been increasing significantly for last three decades. Columnar-lining esophagus (Barrett's esophagus) is one of the proven factors of developing esophagus cancer. The prevalence of Barrett's esophagus and esophageal adenocarcinoma in Russia is not investigated enough. The analysis of the results of 34903 endoscopic examinations of the upper gastrointestinal tract in population of Leningrad region with symptoms of gastric dyspepsia during the period from 2007 to 2013 is presented in this article.В течение трех последних десятилетий отмечается достоверный рост заболеваемости аденокарциномой пищевода населения экономически развитых стран. Одним из доказанных факторов развития железистого рака органа является цилиндроклеточная метаплазия его слизистой оболочки. Распространенность цилиндроклеточной метаплазии и адено-генного рака пищевода среди россиян изучена мало. В статье представлен анализ результатов 34 903 эндоскопических исследований верхних отделов пищеварительного тракта, выполненных в период с 2007 по 2013 г. жителям Ленинградской области с симптомами желудочной диспепсии

Analysis of the efficiency of energy systems of long-distance energy transport

The article presents the results of the comparative efficiency of energy systems for the transfer of natural gas energy over long distances from large deposits to final consumers. The result of the research is the limits of competitiveness of systems based on direct current transmissions, gas pipelines, a promising technology for converting natural gas to synthetic liquid fuel (SLF) methanol on installations of combined production of SLF and electricity based on their detailed mathematical models

PREVALENCE OF ESOPHAGEAL SYNDROMES OF GASTROESOPHAGEAL REFLUX DISEASE IN POPULATION OF LENINGRAD REGION (ACCORDING TO ESOPHAGOGASTRODUODENOSCOPY FINDINGS)

The article presents an analysis of 34.903 esophagoscopy results performed for population of Leningrad region at the period from 2007 to 2013. A prevalence of erosive esophagitis was 4,9%, peptic strictures - 0,18%, columnar-celled metaplasias - 1,43% and esophageal adenocarcinoma - 0,645%. The data obtained showed a high prevalence of GERD-associated syndromes with injury of mucous coat of esophagus in the local population of Russians