Endoluminal laser delivery mode and wavelength effects on varicose veins in an ex vivo model.

Background And Objectives: Endovenous laser ablation (EVLA) has been shown to be effective for the elimination of saphenous veins and associated reflux. Mechanism is known to be heat related, but precise way in which heat causes vein ablation is not completely known. This study aimed to determine the effects of various endovenous laser wavelengths and delivery modes on ex vivo human vein both macroscopically and microscopically.

Histologic and clinical response to varying density settings with a fractionally scanned carbon dioxide laser.

Objective: An evaluation of the histological and clinical response to varying density settings (-10%, 0, and 10% overlap) with a fractionally scanned CO2 laser.

Study Design: Clinical and histological study evaluating abdominoplasty excised tissue for depth of penetration and width of tissue ablated with varying density and energy settings utilizing a scanned microsecond pulsed CO2 laser. These parameters were correlated clinically with patients treated with similar density settings.