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Thrombogenicity of central venous catheters: prospective study of polyethylene, silicone and polyurethane catheters with phlebography or post-mortem examination.

The thrombogenicity of polyethylene, silicone and polyurethane central venous catheters was compared in a prospective clinical, phlebographic and post-mortem study in 52 patients. The incidence of central venous thrombosis was high with polyethylene catheters (70%), but much lower with silicone (20%) and with polyurethane catheters (17%).

Catheters, Indwelling↗

[Comparative evaluation of saccoradiculography and lumbar phlebography in the diagnosis of lumbar disk herniation].

A comparative evaluation of two relevant methods (saccoradiculography and lumbar epidural venography), based on 246 case studies (133 of which surgically treated), did not reveal that one of the two could be adopted as elective test with regard to its diagnostic accuracy. However if we consider tolerance and complications of each method, lumbar epidural venography appears to be the elective test in herniated lumbar disk diagnosing.

Diagnosis, Differential↗

Phlebography with non-elaborate equipment.

A simplified phlebocavographic technique is proposed, using a standard radiology table and two 30 x 90 cassettes with a screen. These are placed under the floating tray of the table, and are maintained in place with two corner pieces.

Humans↗