title: Refractory venous leg ulcers: a study of risk factors.
abstract: BACKGROUND
  Although certain risk factors for poor healing of leg ulcers have been identified, data concerning the characteristics of refractory ulcers have not been specifically studied in the literature.
  
  
  OBJECTIVE
  To study the characteristics of refractory venous leg ulcers.
  
  
  METHODS
  We retrospectively studied prognostic factors for healing in patients with refractory venous leg ulcers followed and treated in our dermatology department between January 1993 and January 2000. Each patient included in this study was compared with two patients matched for age and gender and presenting leg ulcers with normal healing, followed during the same period.
  
  
  RESULTS
  Thirty-two of 571 patients with leg ulcers were included. The study population consisted of 20 females and 12 males with a mean age 73.5 years. The control population comprised 64 patients, 40 females and 24 males, with a mean age of 73 years. Univariate analysis demonstrated the negative prognostic impact of several previously identified factors (including surface area and history of the ulcer). In particular, multivariate analysis identified four main risk factors for refractory ulcer that are often associated in these patients: associated arterial disease, presence of post-thrombotic popliteal sequelae, recurrence of the ulcer, and disability.
  
  
  CONCLUSIONS
  Four main risk factors that are often associated were identified, indicating the multifactorial nature of these refractory ulcers.
authors: Department of Dermatology, Hôpital Sud, Amiens, France.
authors: Guillaume
authors: G
authors: Chaby
authors: Valérie
authors: V
authors: Viseux
authors: Albert Adrien
authors: AA
authors: Ramelet
authors: Olivier
authors: O
authors: Ganry
authors: Anne
authors: A
authors: Billet
authors: Catherine
authors: C
authors: Lok