title: Promoting healing with recombinant human platelet-derived growth factor--BB in a previously irradiated problem wound.
abstract: OBJECTIVE
  Persistent, poorly healing wounds are a significant clinical problem in patients who have had previous irradiation. Despite current treatments, refractory nonhealing soft tissue wounds persist. The study described one of the earliest reported uses of recombinant human platelet-derived growth factor-BB (rhPDGF) gel to improve the healing of a previously irradiated refractory dermal wound to the neck that had been present for 12 years.
  
  
  METHODS
  Case report and literature review.
  
  
  METHODS
  Review of local healing management of previously irradiated wounds and review of patients chart one year after follow-up treatment.
  
  
  RESULTS
  A 47-year-old man had a 12-year history of a persistent, painful, nonhealing full-thickness dermal wound on the left side of his neck after radiation therapy and chemotherapy for a T2N2bM0 nasopharyngeal carcinoma. He had been tumor free for 12 years. Despite multiple modalities of therapy over a 1-year period (including moist hydrogel dressings, topical and oral antibiotics, serial debridement, and hyperbaric oxygen), the wound did not heal. After 6 months of topical rhPDGF gel treatment, sufficient granulation tissue developed within the dermal wound that a split-thickness skin graft was successfully performed. Symptomatically, the patient's continuous pain at the neck resolved after rhPDGF treatment. Serial histological biopsy specimens before and after rhPDGF treatment confirmed the wound transformation from a chronic state to a short-term healing state.
  
  
  CONCLUSIONS
  In previously irradiated tissue, rhPDGF can be useful in helping refractory wounds to heal by inducing further granulation formation. If such treatment is planned, the patient should be informed of the possible theoretical risks of its use when it is in proximity to a previously treated neoplastic site.
authors.affiliation: Department of Otolaryngology--Head and Neck Surgery, University of Minnesota School of Medicine, Minneapolis 55455, USA.
authors.forename: David B
authors.initials: DB
authors.lastname: Hom
authors.forename: J Carlos
authors.initials: JC
authors.lastname: Manivel
mesh_terms: D000287:Administration, Topical; D043925:Angiogenesis Inducing Agents / Q000008:administration & dosage*; D000077214:Becaplermin; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy / Q000473:pathology / Q000532:radiotherapy*; D017024:Chemotherapy, Adjuvant; D005782:Gels; D006801:Humans; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000188:drug therapy / Q000473:pathology / Q000532:radiotherapy*; D009367:Neoplasm Staging; D010982:Platelet-Derived Growth Factor / Q000008:administration & dosage*; D020574:Proto-Oncogene Proteins c-sis; D011855:Radiodermatitis / Q000188:drug therapy*; D011994:Recombinant Proteins / Q000627:therapeutic use; D016896:Treatment Outcome; D014945:Wound Healing / Q000187:drug effects*
chemical_list: D043925:Angiogenesis Inducing Agents; D005782:Gels; D010982:Platelet-Derived Growth Factor; D020574:Proto-Oncogene Proteins c-sis; D011994:Recombinant Proteins; D000077214:Becaplermin