Confusion exists regarding the right surgical strategy for therapy of isolated varicosis of the lateral accessorian saphenous vein (LASV) resulting from an incompetent valve at the crosse without concomitant reflux into the long saphenous vein (LSV). In a retrospective study 30 patients with isolated varicosis of the LASV were examined 3 years after surgical treatment. In this study the first segment of the LSV was removed after resection of the LASV. 64% of our patients were free of recurrence after 3 years. 25% had partial reflux from the Boyd perforans vein and only 9% of the patients had a complete reflux in the LSV. Based on our results it is justified not to remove the LSV in cases of isolated varicosis of the LASV.
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