PMID: 8594513Feb 1, 1996Paper

Tissue plasminogen activator for preserving inferior peripheral iridectomy patency in eyes with silicone oil

Ophthalmology
M W MacCumberG J Jaffe

Abstract

An inferior peripheral iridectomy (IPI) was used to prevent forward migration of silicone oil in vitrectomized eyes; however, in approximately one third of eyes, the IPI closed spontaneously. Occlusion of the IPI by fibrin is believed to be an early event in permanent IPI closure by scar tissue. The authors determined whether intraocular tissue plasminogen activator (tPA) would restore and maintain IPI patency in eyes that had early occlusion of the IPI by fibrin. Between November 1993 and January 1995, 12 patients who underwent vitrectomy with silicone tamponade and IPI for complicated retinal detachment received an anterior chamber injection of tPA (6.25 or 12.5 microgram) for occlusion of the IPI by fibrin. All 12 patients had lysis of fibrin and maintained a patent IPI at the last follow-up (124+/-95 days). One patient required multiple tPA injections for recurrent fibrin formation. In another patient, a small hyphema developed after the tPA injection, which did not occlude the IPI. When compared with the natural course in a very similar group of patients previously reported, tPA had a statistically significant beneficial effect in the maintenance of IPI patency (P = 0.040). Intraocular tPA can be safely used to lyse postop...Continue Reading

References

Feb 1, 1990·Ophthalmology·G J JaffeD P Han
May 15, 1990·American Journal of Ophthalmology·D F WilliamsG A Williams
Jun 15, 1990·American Journal of Ophthalmology·G J JaffeG W Abrams
Jul 1, 1988·Archives of Ophthalmology·G J JaffeG A Williams
Aug 1, 1988·Archives of Ophthalmology·G A WilliamsG W Abrams

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