文摘
Background Primary varicose vein disease should be treated by stage-adjusted therapy in order to prevent possible complications. The pathogenesis of primary varicose vein disease is still unknown. Objectives An obvious heritability stresses the need for a genetic distinction between potential sources of axial reflux as well as of complicated disease. Results Examination of blood and tissue specimens from 116 patients with primary varicose veins as well as from 36 controls yielded a significant association of two common polymorphisms of the MTHFR gene with two principal morphological phenotypes, c.677C>T with trunk type and junctional incompetence (p-lt;-.01) and c.1298A>C with perforator type with and without axial reflux (p-lt;-.01). A significant association of the c.1298A>C mutation with progression towards complicated disease grades C3- according to the CEAP classification was detected (p-lt;-.01). Recent results from 52 extremities of 34 patients suggest a significantly greater diameter of perforator veins observed in cases of CEAP C3- compared with C2 (p--.02). Conclusions The results support a classification of primary varicose veins according to functional reflux, a selective elimination of relevant insufficiency factors and raise the question of prophylactic genetic testing.