[Duodenal atresia].

The article deals with 5-year (1986-1992) experience in the diagnosis and treatment of duodenal atresia in 26 infants. Timely diagnosis of this developmental anomaly, the variants of operative treatment, and the principles of postoperative management are discussed. The necessity of antenatal ultrasonic examination and the high diagnostic value of radiological and endoscopic methods of diagnosis are emphasized.

[The treatment of hydronephrosis in children].

The paper presents the analysis of hydronephrosis treatment performed within 1987-1993 in 76 children. Special attention is paid to surgical techniques, methods of drainage with regard to hydronephrosis degree and pelvic contractility. The drainage system of the renal calicopelvic system using double-opening tube with continuous drop lavage is designed, the scheme of the patients' postoperative management is described.