title: Graft reepithelialization after penetrating keratoplasty using organ-cultured donor tissue.
abstract: OBJECTIVE
  To analyze graft reepithelialization after penetrating keratoplasty using organ-cultured donor tissue.
  
  
  METHODS
  Retrospective observational cohort study.
  
  
  METHODS
  One thousand one hundred thirty-eight consecutive penetrating keratoplasties (1003 patients) performed between 1992 and 2004 were analyzed, and 1003 were included (1 graft per patient was included).
  
  
  METHODS
  Slit-lamp examination after fluorescein staining.
  
  
  METHODS
  Graft reepithelialization time was recorded.
  
  
  RESULTS
  The average graft reepithelialization time was 4.6+/-13.2 days (range, 1-210 days; median, 2.5 days). Complete corneal epithelial healing was obtained in 1 day in 28.5% of patients, in 3 days in 65.8%, in 7 days in 93.6%, and in 14 days in 97.0%. Postoperative chronic epithelial defects occurred in 3.0% of patients. In univariate analysis, death-to-storage time, storage time, deswelling time, rejection risk, trephination size, suture method, use of dexamethasone ointment during surgery, use of sodium hyaluronate during surgery, and use of high postoperative steroid regimen significantly influenced the graft reepithelialization time (P<0.05). In multiple regression, only the rejection risk (beta = 0.07; P = 0.045), use of sodium hyaluronate at the end of surgery (beta = -0.17; P = 0.001), and steroid regimen (beta = 0.09; P = 0.022) significantly influenced the graft reepithelialization time.
  
  
  CONCLUSIONS
  The use of sodium hyaluronate at the end of surgery to coat the ocular surface shortened graft reepithelialization time after penetrating keratoplasty using organ-cultured donor tissue. Graft reepithelialization time was longer in high-risk recipients, and it increased with high dexamethasone eyedrops regimen.
authors.affiliation: Department of Ophthalmology, Centre Hospitalier National d'Ophtalmologie des XV-XX, Paris VI University, Paris, France. borderie@quinze-vingts.fr
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Borderie
authors.forename: Olivier
authors.initials: O
authors.lastname: Touzeau
authors.forename: Tristan
authors.initials: T
authors.lastname: Bourcier
authors.forename: Cécile
authors.initials: C
authors.lastname: Allouch
authors.forename: Laurent
authors.initials: L
authors.lastname: Laroche
mesh_terms: D000368:Aged; D003316:Corneal Diseases / Q000601:surgery; D003907:Dexamethasone / Q000008:administration & dosage; D019573:Epithelium, Corneal / Q000502:physiology*; D015590:Fluorophotometry; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage; D015948:Keratoplasty, Penetrating; D008875:Middle Aged; D009924:Organ Culture Techniques; D012038:Regeneration / Q000502:physiology*; D012189:Retrospective Studies; D013997:Time Factors; D014019:Tissue Donors; D014792:Visual Acuity / Q000502:physiology; D014945:Wound Healing / Q000187:drug effects / Q000502:physiology*
chemical_list: D003907:Dexamethasone; D006820:Hyaluronic Acid