[Prognostication of the results of treatment of retinal detachment with silicone oil tamponade using pattern recognition methods].

The aim of this work was to solve the problem of prognostification of anatomic and functional results of treatment of retinal detachment (RD) with silicone oil tamponade. Analysis of the treatment of 257 eyes was performed using pattern recognition methods. All the patients were characterized according to 32 signs related the preoperative status only. As a result, an informative sign system was developed; the present data proved to be not representative enough, which manifested mostly in the class of RD recurrence, where the rate of correct end result recognition was 75% (in the class of "normal condition" it was 95%). One of the most significant RD signs, PVR degree, in this study was placed in the second ten according to its informative value, probably due to the fact that PVR classification is not detailed enough.

[A spectral analysis of the periodic components in the heart rhythm structure of newborn infants]. / Spektral'nyi analiz periodicheskikh sostavliaiushchikh v strukture serdechnogo ritma novorozhdennykh detei.

Spectral analysis of spontaneous heart rate fluctuations were assessed in 12 healthy newborn infants and in 14 low birth weight newborns. The orthostatic test was performed by the change of newborns posture. High-frequency fluctuations at the respiratory rate were detected in healthy infants and orthostatic reactions of heart rate resembled the same reactions in healthy adults. High-frequency (respiratory) fluctuations were diminished in low-birth weight infants. It is supposed that respiratory fluctuations can be used as a sign of newborn infants well-being and maturation.