title: When is recalcitrant pyoderma gangrenosum truly recalcitrant?
abstract: BACKGROUND
  The literature supports many different therapies used in recalcitrant pyoderma gangrenosum, which suggests that the pathophysiology is not yet understood. Our hypothesis is that certain patient demographic factors, including age or size of ulcer at presentation, may predict a poor clinical outcome.
  
  
  OBJECTIVE
  The goal of our study was to stimulate an analysis of pyoderma gangrenosum treatment failures to identify predisposing conditions that would increase the likelihood of failure.
  
  
  CONCLUSIONS
  Patients older than 50 years of age or with an ulcer greater than 25 cm in diameter may have a poor outcome, but a systematic review of pyoderma gangrenosum treatment failures should be undertaken to support this hypothesis.
authors.affiliation: University of Manitoba, Winnipeg, Manitoba, Canada R3C 3J5.
authors.forename: Cheryl
authors.initials: C
authors.lastname: Barnabé
authors.forename: Lorne
authors.initials: L
authors.lastname: Hurst
authors.forename: Salem
authors.initials: S
authors.lastname: Alowami
mesh_terms: D000368:Aged; D003710:Demography; D003879:Dermatologic Agents / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D017063:Outcome Assessment, Health Care; D017511:Pyoderma Gangrenosum / Q000188:drug therapy* / Q000503:physiopathology*; D017211:Treatment Failure
chemical_list: D003879:Dermatologic Agents