[Cost-effectiveness of coronary angioplasty procedures in Poland].

Background: Restenosis following percutaneous coronary interventions (PCI) increases re-hospitalisation rate and may lead to new myocardial infarction (MI) or death. Besides medical aspects, it may also reduce cost-effectiveness of the procedure.

Aim: To analyse the medical and economical outcome of patients treated with PCI during a one year period.

[Functional estimation of the isolated islands of Langerhans in semipermeable membrane chambers].

The possibility for the use of membranes of regenerated cellulose was tested for constructing semipermeable chambers for the cultivation and implantation of the isolated islets of Langerhans. The membranes of regenerated cellulose was well-permeable for insulin. An implantation for one month had no influence at the rate of diffusion of insulin.