Pycnogenol® prevents skin hyperpigmentation following sclerotherapy.

BACKGROUND: The aim of this registry supplement study was to evaluate the effects of the oral supplement Pycnogenol® on possible skin discolorations or other minor skin changes after varicose vein sclerotherapy in comparison with a standard management (SM).

METHODS: One hundred sixty-one subjects completed the study. 84 took Pycnogenol® from the day before sclerotherapy for 12 weeks and followed SM. 77 followed SM only and served as controls. 420 injection sites were followed-up in the Pycnogenol® group and 431 in the control group. The number of injected veins (using only Aetoxysklerol) was on average 4-8 veins/patient. No side effects were observed for the SM or for supplementation. Pycnogenol® supplementation showed a good tolerability. The two management groups were comparable for age, sex and veins distribution at inclusion.

RESULTS: After 12 weeks, skin discoloration assessed by a skin staining score was generally significantly lower and less frequent (P<0.05) with Pycnogenol® with a score of 0.4±0.2 compared to controls (with a score of 2.1±0.4). In addition, the number of stains per treated vein was significantly lower in the Pycnogenol® group than the control group.

CONCLUSIONS: Varicose vein sclerotherapy is a minimally invasive procedure almost without complications. Pycnogenol® intake appears to improve healing and prevent skin discolorations after injection of the sclerosing agent. To verify this effect of Pycnogenol® , more studies for a longer period are needed.