title: Stripping operation with preservation of the calf saphenous veins for primary varicose veins: hemodynamic evaluation.
abstract: OBJECTIVE
  To study early changes in venous hemodynamics in stripping operation with preservation of the calf saphenous veins.
  
  
  METHODS
  From October 1999 to December 2000, 110 extremities of 73 patients were treated for primary varicose veins. Based on preoperative ascending venography, 40 extremities underwent the groin-to-knee stripping of the GSV, 20 underwent the proximal division of the LSV, and 50 received combinations of both surgeries. To evaluate venous hemodynamic changes, air plethysmography was performed before operation and 7-14 days after operation.
  
  
  RESULTS
  The venous volume, venous filling index and residual volume fraction were improved after surgery, but the ejection fraction did not change. The overall incidence of nerve injury was 4.5% (five limbs).
  
  
  CONCLUSIONS
  In stripping operations, the preservation of the calf saphenous veins, which is shown to be advantageous in reducing saphenous or sural nerve injuries, does not adversely affect early venous hemodynamic improvement.
authors.affiliation: Department of Cardiovascular Surgery, Hokkaido University School of Medicine, Sapporo, Japan. tnishibe@fujita-hu.ac.jp
authors.forename: Toshiya
authors.initials: T
authors.lastname: Nishibe
authors.forename: Masayasu
authors.initials: M
authors.lastname: Nishibe
authors.forename: Fabio
authors.initials: F
authors.lastname: Kudo
authors.forename: Jorge
authors.initials: J
authors.lastname: Flores
authors.forename: Keiko
authors.initials: K
authors.lastname: Miyazaki
authors.forename: Keishu
authors.initials: K
authors.lastname: Yasuda
mesh_terms: D005260:Female; D006439:Hemodynamics; D006801:Humans; D007866:Leg / Q000098:blood supply / Q000294:innervation; D008297:Male; D059348:Peripheral Nerve Injuries; D010991:Plethysmography; D011184:Postoperative Period; D011300:Preoperative Care / Q000379:methods; D011446:Prospective Studies; D011859:Radiography; D012501:Saphenous Vein / Q000601:surgery*; D014648:Varicose Veins / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D014656:Vascular Surgical Procedures / Q000379:methods; D014689:Venous Insufficiency / Q000000981:diagnostic imaging