[Pellets preparation by the drug layering technique in a rotary processor]. / Príprava pelet vrstvením lécivé látky na inaktivní jádra v rotoprocesoru.

Pelletization by the layering technique can be carried out by applying a liquid (a drug solution or suspension) or a drug powder using either coating drums or a fluidized bed equipment. This technique is used particularly for the formulation of multiparticulate controlled release dosage forms. Application of a drug on inactive beads in a centrifugal fluid-bed equipment (a rotary processor) represents the up-to-date technique of pellets production. Pelletization by the tangential drug-layering process is a multivariate process, and it is important to identify as well as to control the process variables and conditions. The goal of this paper is to give a summary about one of the newest pelletizing technologies - drug layering in a rotary processor, to outline its possibilities, and particularly to describe the influence of formulation and process parameters on the properties of the final product.

[Sodium nitrite poisoning in a neonate]. / Otrava novorozence dusitanem sodným.

Natrium nitrosum intoxication is usually associated with a subsequent methemoglobinemia. Beside it, nitrates can cause also some other pathological states. Treatment with the toluidine blue may have various adverse side effects. Newborn intoxication by natrium nitrosum developing after the intoxication of the bearing mother before the parturition has not been described yet. Our own observation is referred.

[16q+ partial trisomy in a 7-day-old surviving neonate]. / Parciální trisomie 16q+ u 7 dní zijícího novorozence.

A proband with a complex malformation; chromosomal examination revealed partial trisomy for the long arms of chromosome 16. The child's father, the father's twin brother and the father's mother are carriers of the balanced translocation 14/16.