Republican scientific and practical seminar "Complications of gastric ulcer and duodenal ulcer" was held on the basis of Arsky Central Regional Hospital. Head of the surgery sub-faculty of KSMU, head of surgical service of RCH D. M. Krasilnikov, Assistant Professor of the surgical diseases sub-faculty of KSMU A. V. Abdullaev and head of the surgical department of Arsky CRH R. T. Fazliakhmetov have appeared at the seminar.