Disease of the venous system
Disease of the venous system
Chronicvenousinsufficiency of lowerextremityStatueofAncientRome
Statue of Ancient Rome Chronic venous insufficiency of lower extremity
anatomyVenous systemof the legs is composed bytwoparallelandconnectedsystems,thedeep and superficialvenous.Thesetwosystemswas connected byperforatingvenoussystem交通静脉PerforatingVein皮肤←Skin深静脉DeepVein浅静脉SuperficialVein
anatomy Venous system of the legs is composed by two parallel and connected systems, the deep and superficial venous. These two systems was connected by perforating venous system
primary venous insufficiencyetiological factor1.Valvularincompetence→bloodrefluxhighpressure invenousvenousdilatation2.Weakvesselwall→dilatationvalvularincompetenceProximalDistalveinveinSubcutaneouslayerSubfasciallayerPerioratingPerforatingveinvein
primary venous insufficiency etiological factor 1. Valvular incompetence →blood reflux→high pressure in venous→venous dilatation 2.Weak vessel wall→ dilatation→valvular incompetence
clinical manifestationSimple varicose venousvaricose ofsuperficial vein,no complicationcomplications-dystrophic complication in skins（eczemaulcer）rupturetohemorrhageperforatorvenous insufficiencyankle edemadystrophic complication ofankle skins
clinical manifestation Simple varicose venous—varicose of superficial vein , no complication complications— dystrophic complication in skins（eczema、ulcer） rupture to hemorrhage perforator venous insufficiency —ankle edema， dystrophic complication of ankle skins