[Drainage in surgery: history, theory, drainage procedures].

Brief historical review of drainage procedures of the wounds and abdominal cavity was adduced. The main mechanisms of the drainage process, from the hydrodynamics laws point, were discussed. There was shown, that drainage occurs due to hydrostatic tissue of liquid and the capillarity laws.

[Surgical treatment of chronic duodenal ileus].

The results of surgical treatment in 24 patients suffering chronic duodenal impassability (CDI), caused by various mechanical reasons, were analyzed. The most frequent of them were pancreatic cancer, arteriomesentery compression, pancreatic pseudocyst, volumic formations, adhesive deformity of duodenojejunal juncture, duodenal polyposis. There was proposed the method of duodenal arteriomesentery compression correction, which permits to restore effectively the duodenal motor-evacuatory function.

[Pathologic changes of hernial sac and its content].

Results of treatment of 2308 patients, suffering nonincarcerated hernia of abdominal wall of various localization, were analyzed. In 24 (1.1%) of them different pathologic changes of hernial sac were noted and in 17 (0.