American journal of ophthalmology case reports · 2023
Ex-PRESS shunt combined with ab-interno peripheral iridectomy: A new surgical procedure for iridocorneal endothelial syndrome.
СтатьяНазвание и аннотация: Перевод в очереди
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Wajima Ryotaro, Higashide Tomomi, Sugiyama Kazuhisa
Аннотация
PURPOSE: Iridocorneal endothelial (ICE) syndrome may cause refractory glaucoma due to progressive synechial closure or membrane formation at the anterior chamber angle. Filtration surgeries are often required but are associated with a higher rate of surgical failure or complications than other types of glaucoma. Herein, we report a new and effective surgical procedure for glaucoma secondary to ICE syndrome: Ex-PRESS shunt combined with ab-interno peripheral iridectomy using a small-gauge vitreous cutter.
METHODS: Three patients with ICE syndrome who underwent surgery were included. Intraoperatively, an ab-interno peripheral iridectomy was performed using a small-gauge vitreous cutter through a corneal incision in the superior-nasal or superior-temporal quadrants to create space for the insertion of Ex-PRESS shunt free from the iris tissue. The shunt was inserted under the scleral flap. The first patient underwent combined cataract surgery, whereas patients 2 (pseudophakia) and 3 (phakia) underwent Ex-PRESS alone.
RESULTS: No intraoperative complications were observed. The intraocular pressure remained stable until the final postoperative visits at approximately 7, 4, and 1 year in Cases 1, 2, and 3, respectively. Case 2, with mild preoperative corneal edema due to graft failure in Descemet's stripping automated endothelial keratoplasty (DSAEK), underwent reDSAEK 6 months postoperatively.
CONCLUSIONS AND IMPORTANCE: Ex-PRESS shunt combined with ab-interno peripheral iridectomy using a small-gauge vitreous cutter may be a safe and effective surgical procedure in patients with ICE syndrome, regardless of the lens status.
METHODS: Three patients with ICE syndrome who underwent surgery were included. Intraoperatively, an ab-interno peripheral iridectomy was performed using a small-gauge vitreous cutter through a corneal incision in the superior-nasal or superior-temporal quadrants to create space for the insertion of Ex-PRESS shunt free from the iris tissue. The shunt was inserted under the scleral flap. The first patient underwent combined cataract surgery, whereas patients 2 (pseudophakia) and 3 (phakia) underwent Ex-PRESS alone.
RESULTS: No intraoperative complications were observed. The intraocular pressure remained stable until the final postoperative visits at approximately 7, 4, and 1 year in Cases 1, 2, and 3, respectively. Case 2, with mild preoperative corneal edema due to graft failure in Descemet's stripping automated endothelial keratoplasty (DSAEK), underwent reDSAEK 6 months postoperatively.
CONCLUSIONS AND IMPORTANCE: Ex-PRESS shunt combined with ab-interno peripheral iridectomy using a small-gauge vitreous cutter may be a safe and effective surgical procedure in patients with ICE syndrome, regardless of the lens status.