Faculty Collaboration Database

Rebleeding in experimental traumatic hyphema treated with intraocular tissue plasminogen activator. Arch Ophthalmol 1990 Feb;108(2):264-6

Date

02/01/1990

Pubmed ID

2105713

DOI

10.1001/archopht.1990.01070040116043

Scopus ID

2-s2.0-0025175029 (requires institutional sign-in at Scopus site)   29 Citations

Abstract

Tissue plasminogen activator has recently been shown to enhance the clearance of experimental nontraumatic hyphema in animals. However, hyphema in human eyes usually results from ocular trauma, and rebleeding is a serious complication. Hemorrhage is also a potential complication of fibrinolytic therapy. We assessed the incidence of rebleeding in an animal model of surgically induced traumatic hyphema after intracameral injection of tissue plasminogen activator (25 micrograms) or physiological saline. Eight eyes were each treated with tissue plasminogen activator or physiological saline at 10 minutes, 24 hours, 48 hours, or 72 hours after injury. Controls were 8 eyes with hyphema but no intracameral injection. No eyes treated with physiological saline (total, 32 eyes) or control eyes rebled. In contrast, the incidence of rebleeding from the injury site in eyes treated with tissue plasminogen activator was 88% (7/8) at 10 minutes, 75% (6/8) at 24 hours, 50% (4/8) at 48 hours, and 0% (0/8) at 72 hours after injury. Treatment of traumatic hyphema with tissue plasminogen activator prior to healing of damaged vascular endothelium may contribute to rebleeding.

Author List

Williams DF, Han DP, Abrams GW

Author

Dennis Han MD Emeritus Professor in the Ophthalmology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Animals
Disease Models, Animal
Hyphema
Incidence
Iris
Rabbits
Random Allocation
Tissue Plasminogen Activator
Wound Healing