[Removal of retrievable inferior vena cava filters 90 days after implantation in an ovine model: is there a time limit for removal?].

Objective: To study the feasibility and safety of removing retrievable Günther-Tulip vena cava filters (GTFs) 90 days after their implantation in an ovine model.

Material And Methods: Thirty GTFs were implanted in 30 ewes and retrieval was attempted at 90 days. Conventional cavography was performed in all cases before and after retrieval in order to evaluate inferior vena cava patency and record dimensions.

[Research study on renal targeted chemotherapy with magnetic harpoons and intravenous administration of ferro-carbon nanoparticles].

Objectives: The use of nanoparticules for drug transport is one of the topics with priority interest within the field of biomedical research. Our objective is to show the initial results of an innovative method to focalize drug carrier ferro-carbon nanoparticules to solid organs. We obtained and characterized various types of ferrous magnetic nanoparticules and studied their behaviour in vitro and in vivo in laboratory animals with intrarenal magnetic targets laparoscopically implanted.

Retrievability of uncoated versus paclitaxel-coated Günther-Tulip IVC filters in an animal model.

Purpose: To compare in a pilot study, the retrievability and inferior vena cava (IVC) wall reaction elicited by uncoated and paclitaxel-coated Günther-Tulip filters in the animal model.

Materials And Methods: Three groups with five pigs each underwent infrarenal IVC implantation of Günther-Tulip filters. Paclitaxel-coated filters were used in Groups A and B and uncoated filters were used in Group C.