Endovenous Celon radiofrequency-induced thermal therapy of great saphenous vein: A retrospective study with a 3-year follow-up.

Objective: Our main objective was to evaluate the short- and long-term efficacy of Celon radiofrequency-induced thermal therapy for endovenous treatment of incompetent great saphenous vein. The secondary objectives were to report on possible short-term side effects and complications.

Methods: This was a retrospective study of 112 consecutive patients included between 2013 and June 2015.

Feasibility of the preparation of silica monoliths for gas chromatography: fast separation of light hydrocarbons.

The preparation conditions of silica monoliths for gas chromatography were investigated. Silica-based monolithic capillary columns based on sol-gel process were tested in the course of high-speed gas chromatographic separations of light hydrocarbons mixture (C1-C4). The impact of modifying the amount of porogen and/or catalyst on the monolith properties were studied.