ISTAT (Intraluminal Suture Transfixed and Titratable) technique for ligature-free Reversal of long-term drainage implant hypotony.

ABSTRACT:

Purpose

To describe the iSTAT (Intraluminal Suture Transfixed and Titratable) technique, an improvement on prior tube occlusion methods, allowing for variable flow.

Observations

A 76-year-old woman who underwent an uncomplicated glaucoma drainage device (GDD) placement for uncontrolled mixed mechanism glaucoma presented with hypotony 4 years post-operatively. The iSTAT technique was performed to adjust the flow in the GDD tube: a 4-0 polypropylene suture tip was blunted with a low-temperature cautery, creating a bulbed end that would occlude the tube. The suture was introduced into the tube bulb-first intracamerally, extending to the plate. If partial occlusion of the tube is desired, the suture can be secured in place by piercing the side wall of the tube tip with the dista

SUBMITTER: Kilgore KP 

PROVIDER: S-EPMC9098393 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature