Treatment of spontaneous chronic corneal epithelial defects with diamond burr debridement vs combination diamond burr debridement and superficial grid keratotomy
Fonte: Doris Wu, Sara M. Smith, Jessica M. Stine
Appearance of a canine spontaneous chronic cornealepithelial defect (SCCED) following a DBD+SGK treatment. Note thevisible linear scratching of the corneal surface
Objective: To evaluate the efficacy of diamond burr debridement (DBD) vs a combination of diamond burr debridement with superficial grid keratotomy(DBD+ SGK) for the treatment of spontaneous chronic corneal epithelial defects (SCCEDs) in dogs. Procedure: Medical records of dogs diagnosed with SCCEDs from three differ-ent institutions that received a DBD or DBD+SGK between 2003 and 2015 were reviewed. Age, breed, sex, history of a previous SCCED, procedures performed,time to healing, and complications were statistically analyzed.Results: One hundred and ninety-four dogs met the inclusion criteria. Eighty-two of 106 eyes (77.4%) received a DBD and healed following the first treatment(13.3 4.9 days to recheck, range 2-27). Sixty-eight of 88 eyes (77.3%) received a DBD+SGK and healed following the first treatment (15.4 5.0 days to recheck, range 5-45). No significant difference in healing outcome was found between the two treatments ( P = 1). For SCCEDs that healed after a single treatment ( n = 150), complications occurred in 13.3% (n = 20) of eyes with no difference in complications between the DBD and DBD+SGK groups (P = .86).Thirty-five of 44 eyes (80.0%) healed after the second treatment (16 8.2 days from second treatment to third visit, range 5-47); nine of 44 eyes (20.0%) were not healed (12 6.2 days from second treatment to third visit, range 5-25). The second treatment method did not influence healing rates (P = .64).Conclusions: DBD and DBD+SGK are equally effective treatment methods for canine SCCEDs. No differences in complication rates after one treatment were observed between DBD and DBD+SGK.