[Use of suspended catheters (stents) during surgery of hydronephrosis in children].

The application of hanging catheters (stents) in operations for hydronephrosis in children has considerable advantages over classical (open) methods of drainage. Bacteriological investigations of analyses of urea performed in open and closed closed systems of drainage have shown less incidence of infection of the upper urinary tracts with intrahospital gram-negative flora after operation on patients operated upon with using stents, which gave less amount of postoperative complications.

[Comparative evaluation of the dynamics of the echocardiographic parameters following open and closed mitral commissurotomy].

A comparative study of early post-operative changes in a number of echocardiographic parameters was carried out in patients with pure and prevailing mitral stenosis following an open (24 patients) and closed (32 patients) mitral commissurotomy. The increment in the rate of early diastolic fall of the anterior mitral cusp, and total valve excursion, as well as reverse dynamics of the maximum left-atrial anteroposterior size were shown to differ significantly in post-open-commissurotomy patients from the corresponding parameters observed following the closed-technique operation. Mitral stenosis correction under visual control was associated with more effective as well as more radical results.

[Secretory cycle of pancreatic acinar cells in different functional states].

Time parameter and secretory cycle in acinar cells of the pancreas were studied after atropine, trazilol, pilocarpine administration, and subtotal resection of the small intestine. The duration of secretory cycle was found to be about 45 min. in intact rats.