title: Tissue crossmatch before corneal transplantation.
abstract: OBJECTIVE
  To investigate the influence of anticorneal antibodies on the outcome of transplantation in recipients before penetrating keratoplasty.
  
  
  METHODS
  100 consecutive penetrating keratoplasties performed between July 1995 and June 1996 were included in this study. Donor corneoscleral rim cryosections were incubated with recipient serum. Fixation of recipient IgM on donor corneas was revealed with a polyclonal anti-human mu-chain antibody. The mean follow up time was 61 months. Five years after transplantation, 63% of patients were available for follow up. During the follow up period, 15% of keratoplasties failed because of irreversible rejection.
  
  
  RESULTS
  Anti-donor stromal lamellae IgM were found in 14 recipients. Anti-donor keratocyte IgM were present in 28 recipients. Dilution of recipient serum (up to 1/800) did not modify the results of positive crossmatch assays. Crossmatch assays performed with positive recipient sera and negative donor corneoscleral rims were negative. No significant influence of IgM crossmatch results on graft survival and rejection-free graft survival was found.
  
  
  CONCLUSIONS
  Donor specific anticorneal stroma IgM were found in 28% of recipients before transplantation. This pre-immunisation was not associated with a higher risk of transplantation rejection.
authors.affiliation: Cornea Bank of EFS--Ile-de-France and Centre Hospitalier National d'Ophtalmologie des XV-XX, 28 rue de Charenton, 75012 Paris, France. borderie@quinze-vingts.fr
authors.forename: V M
authors.initials: VM
authors.lastname: Borderie
authors.forename: S
authors.initials: S
authors.lastname: Scheer
authors.forename: T
authors.initials: T
authors.lastname: Bourcier
authors.forename: O
authors.initials: O
authors.lastname: Touzeau
authors.forename: L
authors.initials: L
authors.lastname: Laroche
mesh_terms: D000328:Adult; D000368:Aged; D001323:Autoantibodies / Q000032:analysis; D003315:Cornea / Q000276:immunology; D016039:Corneal Transplantation / Q000276:immunology*; D005500:Follow-Up Studies; D006084:Graft Rejection / Q000276:immunology; D006085:Graft Survival / Q000276:immunology; D006650:Histocompatibility Testing; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis; D008875:Middle Aged; D012307:Risk Factors; D014019:Tissue Donors; D016896:Treatment Outcome
chemical_list: D001323:Autoantibodies; D007075:Immunoglobulin M