Role for the Boston Kpro
Results of study with mean follow-up of 24 months showed a much better graft survival rate after implantation of the Boston Kpro compared with repeat PK.
“Despite the good success rates with the Boston Kpro, AAO Ophthalmic Technology Assessment panel had cautious conclusions, noting that outcomes and complications worsened with increased follow-up time,” Dr. Tan said. “These complications can be quite severe and result in permanent visual loss, and so long-term results are needed.”
He added that in the AAO Ophthalmic Technology Assessment, it was also noted that patients with autoimmune conditions did worse with the Boston Kpro.
“Looking at that another way, the results are pretty good for eyes with the indication of failed PK,” Dr. Tan said.
Mitigating the cautions of the Ophthalmic Technology Assessment paper are some newer studies reporting on the Boston KPro.
Superimposing those data onto the Kaplan-Meier survival curves from the SCTS, Dr. Tan showed that the Boston Kpro has a much better graft survival rate than repeat PK, although the Boston KPro did not match DSAEK’s higher graft survival rate.