[The course of twin pregnancy and delivery in a woman after mitral valve implantation].

We described the course and the way of twin delivery of patient, who was pregnant one month after implantation of mitral heart valve. We discussed the threats for the fetus and mother, connected with administration of anticoagulant drugs.

[The effect of nitrous oxide on middle ear pressure in secretory otitis media in children].

The preliminary results of the nitrous oxide application during children anesthesia with secretory otitis media was presented. The different otological operations in which nitrous oxide is contraindicated were mentioned. The nitrous oxide influence on the middle ear pressure increase was emphasized.