Analysis of the vein wall destruction under endovenous laser ablation in an model.

This work was aimed at elaborating an experimental endovenous laser ablation (EVLA) model and evaluating the possibility of using differential scanning calorimetry (DSC) to determine the degree of collagen denaturation of the venous tissue and optimize the laser treatment settings. The control (non-varicose) and varicose vein specimens were subjected to chemical, thermal and morphological analyses. Varicose vein fragments were irradiated with 1.

Reflux volume is determined by ejected blood volume from the calf venous reservoir.

Objective: This study investigated the relationship between the ejected blood volume from the calf venous reservoir and the reflux volume (RV) during the automatic cuff inflation-deflation maneuver in limbs with incompetent great saphenous vein.

Methods: There were 48 patients with chronic venous disease (C, Е, А, P) included in the study. A noncycling operator-dependent distal cuff inflation-deflation was used as the reflux-provoking maneuver.

The immediate effect of physical activity on ultrasound-derived venous reflux parameters.

Objective: Ultrasound-derived reflux volume (RV) has a low correlation with the clinical severity of chronic venous disease, as well as other hemodynamic parameters. The difference in methodology of measurements could be a possible explanation. The purpose of this study was to investigate the immediate effect of calf pump activity used in the functional methods on ultrasound-measured venous reflux parameters.

Gravity force is not a sole explanation of reflux flow in incompetent great saphenous vein.

Objective: This study aimed to evaluate the impact of gravity, reservoir size, and competence of the ostial valve on venous reflux in different body positions.

Methods: Our study included 61 lower limbs with primary incompetence of the great saphenous vein (GSV). The diameter of the GSV and its cross-sectional area, time-averaged mean velocity (TAMEAN), and reflux time (RT) were measured with duplex ultrasound with pulsed wave Doppler.

Early complications of endovenous laser ablation.

Background: The aim of this work was to evaluate the frequency, structure and characteristics of complications after endovenous laser ablation (EVLA).

Methods: The study included 1247 consecutive patients (1417 limbs) with superficial venous insufficiency, treated with EVLA procedures with a wavelength of 1470 nm and automatic pull-back traction of the fiber. Control examinations using Duplex ultrasound were carried out on the second day after EVLA, and in 2 weeks and 1 month after the EVLA procedure.