title: [Effect of external vavuloplasty of deep vein in the treatment of chronic venous insufficiency of lower extremity].
abstract: OBJECTIVE
  To verify the role and effect of external vavuloplasty in the treatment of chronic venous insufficiency (CVI) of lower extremity.
  
  
  METHODS
  Thirty patients with CVI of bilateral lower extremities were enrolled to accept surgical management of vein systems. Both limbs of each patient were randomized into two groups respectively according to the operating style. One limb was given external vavuloplasty of the superficial femoral vein and surgery of superficial venous system (group A), the another limb was only given the surgery of superficial venous system (group B). The effect comparison between both limbs of each patient and two groups by color duplex scanning, color doppler velocity profile (CDVP), air plethysmography and CEAP score system one month and 3 years after operation.
  
  
  RESULTS
  All 60 limbs of 30 cases were CEAP C(2)-C(4) with degree III reflux (Kistner's method) in the deep veins confirmed by color duplex scanning and venography. In 1 month and 3 years after surgery, all the indexes of the limb in the group A were dramatically improved compared with those of the limbs in the group B. The average value of venous reflux degree, reflux volume, and venous filling index (VFI) had significant difference between the two groups (P < 0.001). In 3 years after surgery, there was significant difference between the two groups on ejective fraction (EF)and residual volume fraction (RVF) (P < 0.05) and CEAP clinical score (P < 0.001).
  
  
  CONCLUSIONS
  External vavuloplasty of deep vein may reduce the reflux volume of the affected deep vein and improve the valve function, and can result in better outcomes when combined with surgery of the superficial venous system.
authors.affiliation: Department of Vascular Surgery, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China. shenmingwang@sohu.com
authors.forename: Shen-ming
authors.initials: SM
authors.lastname: Wang
authors.forename: Zuo-jun
authors.initials: ZJ
authors.lastname: Hu
authors.forename: Song-qi
authors.initials: SQ
authors.lastname: Li
authors.forename: Xue-ling
authors.initials: XL
authors.lastname: Huang
authors.forename: Cai-sheng
authors.initials: CS
authors.lastname: Ye
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D005260:Female; D005268:Femoral Vein / Q000601:surgery; D006801:Humans; D035002:Lower Extremity / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D011152:Popliteal Vein / Q000601:surgery; D011446:Prospective Studies; D012501:Saphenous Vein / Q000601:surgery; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures / Q000379:methods*; D014689:Venous Insufficiency / Q000601:surgery*