EFFECT OF PHYSICAL ACTIVITY ON VENOUS REFLUX VOLUMEIN PATIENTS WITH VARICOSE VEINS OF LOWER LIMBS

The aim of the study is to assess the influence of changes in arterial inflow during exercise on quantitative parameters of reflux. Material and methods. The study included 61 patients with primary incompetence of the great saphenous vein. The diameter, cross-sectional area, average velocity, reflux time in seconds, were measured by duplex ultrasound. Reflux volume flow and reflux volume were calculated. The measurements were performed on standing patients at rest before physical exercise and 60 seconds after physical exercise (30 rising on toes at a frequency of 1 time per second). A decrease in the volume of reflux after exercise was calculated (DRV = RV (after) – RV (before)/RV (before)*100 %.). Automatic distal compression-decompression (120 mm Hg) was used as a provocation maneuver. The median and interquartile range were used for describing quantity parameters. Results. Before exercise, reflux parameters were: RT = 4.85 (3.71–6.00) sec; Q = 3.89 (2.03–5.81) ml/s; RV = 17.05 (10.32–25.34) ml. After physical exercise parameters change to RT = 2.86 (2.14–3.33) sec (p < 0,0001); Q = 3.61 (2.06–6.37) ml/s (p = 0,9981); RV = 10.07 (6.08–16.48) ml (p = 0,0007). By comparison of “before” and “after” parameters the reflux volume after the exercise was -40,9 %. Correlation analysis identified statistically significant inverse correlation between the diameter of the great saphenous vein and reflux volume after the exercise (-0,56 (p < 0,05)), as well as an inverse correlation between DRV and disease severity (VCSS) (r = -0.41 (p < 0.0001)).

venous reflux, arterial inflow, exercise, venous ultrasound, varicose veins

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