title: Effect of prophylactic oral acyclovir after penetrating keratoplasty for herpes simplex keratitis.
abstract: OBJECTIVE
  To determine the effect of routine use of prophylactic oral acyclovir after penetrating keratoplasty (PK) for herpes simplex virus (HSV) keratitis on recurrence, rejection, and graft failure rates.
  
  
  METHODS
  Records from 70 consecutive patients who underwent PK for HSV keratitis at the W.K. Kellogg Eye Center between August 1, 1990, and December 31, 2000, were reviewed. Data collected included preoperative disease activity, duration, host vascularity, pre- and postoperative vision, and antiviral use. Particular attention was given to all episodes of HSV recurrence, graft rejection, and failure.
  
  
  RESULTS
  Fifty-six patients (80%) were treated with prophylactic oral acyclovir after surgery. This cohort experienced fewer episodes of rejection (P = 0.006) and better overall graft survival (P = 0.04) than those who were not treated with prophylactic oral antivirals. There was no statistically significant difference in recurrence-free survival between the 2 groups (P = 0.22). Cox regression analysis failed to identify any single variable as a statistically significant predictor of recurrence, rejection, or graft failure.
  
  
  CONCLUSIONS
  Prophylactic oral acyclovir use after PK for HSV keratitis is associated with decreased episodes of rejection and improved graft survival.
authors.affiliation: Henry Ford Health System, Livonia, MI, USA.
authors.forename: Denise D
authors.initials: DD
authors.lastname: Garcia
authors.forename: Qais
authors.initials: Q
authors.lastname: Farjo
authors.forename: David C
authors.initials: DC
authors.lastname: Musch
authors.forename: Alan
authors.initials: A
authors.lastname: Sugar
mesh_terms: D000212:Acyclovir / Q000008:administration & dosage*; D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000998:Antiviral Agents / Q000008:administration & dosage*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006084:Graft Rejection / Q000517:prevention & control; D006085:Graft Survival / Q000187:drug effects*; D018259:Herpesvirus 1, Human / Q000502:physiology; D006801:Humans; D016849:Keratitis, Herpetic / Q000517:prevention & control* / Q000601:surgery*; D015948:Keratoplasty, Penetrating; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control; D014775:Virus Activation / Q000187:drug effects*
chemical_list: D000998:Antiviral Agents; D000212:Acyclovir