Application of negative pressure closed drainage in the treatment of venous ulcer of lower limbs

摘要

Venous ulcer of lower extremities is a serious manifestation of venous insufficiency of lower extremities in the later stage,which is characterized by inflammatory exudation at the initial stage,followed by skin rupture,and finally forms the whole layer of skin atrophy and necrosis,which does not heal for a long time.How to promote ulcer healing is the most important problem in the treatment of venous ulcers of lower extremities.Vacuum sealing drainage(VSD)is constantly used in clinic and plays a unique advantage in wound healing.This paper mainly reviews the present situation of venous ulcer of lower extremities and summary,principle,application progress,attentions and prospect of VSD at home and abroad.