[Portal hypertension at children: current aspects of portal-systemic bypass].

Overall 438 children with extrahepatic portal hypertension underwent surgical treatment. Portal-systemic bypass was performed at 383 patients, meso-portal bypass -- at 56. These surgical procedures were effective at 96.

Poly(2-hydroxyethyl methacrylate) emboli with increased haemostatic effect for correction of haemorrhage of complex origin in endovascular surgery of children.

Poly(2-hydroxyethyl methacrylate) (PHEMA) embolization particles with enhanced haemostatic properties were prepared by bulk or suspension polymerisation of 2-hydroxyethyl methacrylate (HEMA) followed by particle soaking in ethamsylate solution. The particles accelerated thrombus formation as evidenced by blood analysis of rabbits with implanted emboli. Usefulness of both spherical and cylindrical PHEMA particles with enhanced haemostatic effect was demonstrated on the embolization of arterial anastomosis, fistulas of the lower extremity and abdominal cavity, haemangioma and arteriovenous malformation of the head of several children.

[Radical treatment of extrahepatic portal hypertension in children].

Results of radical correction of extrahepatic portal hypertension in 25 children are presented. It is demonstrated that this surgery is feasible in 38.5% patients with this disease.

[Ketamine pharmacokinetics and metabolism after bolus injection of X-ray contrast agents in roentgeno-endovascular interventions in children].

The study was carried out on 13 children (2-12 years) subjected to abdominal aortography. The children were divided into 2 groups. Changes in plasma concentrations of ketamine and its metabolism were evaluated during anesthesia after bolus injection of ionic highly osmolar and nonionic low-osmolar x-ray contrast agents (RCA).

[Evaluation of aqueous compartments of the body by integral bioimpedance spectrometry in x-ray surgical interventions in children].

There were studied 14 children (mean age 5.71 +/- 0.60 years, body weight 18.