Indications and contraindications to gastrointestinal endoscopy in children are defined, endoscopic symptomatology of diseases of the upper portion of the gastrointestinal tract is described in accordance with the international terms. Foreign publications on chromoendoscopic diagnosis are reviewed and authors’ results obtained with the use of vital stains in children are presented. The philosophy of visual chromoendoscopic differential diagnosis of congenital and acquired gastrointestinal diseases in children is presented. Methodology and devices for such examinations are described. Problems in decontamination of endoscopes are discussed. Errors, hazards, and complications of endoscopic manipulations and measures preventing them are analyzed. Safety measures and measures for staff protection are presented. Problems of deontology in pediatric endoscopic service are discussed.
  Addressed to endoscopists, pediatricians, gastroenterologists, and surgeons.