Ultrasound biomicroscopy images: long-term results after deep sclerectomy with collagen implant

Details

Serval ID
serval:BIB_BEF1924CBAA3
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Ultrasound biomicroscopy images: long-term results after deep sclerectomy with collagen implant
Journal
Graefe's Archive for Clinical and Experimental Ophthalmology
Author(s)
Kazakova  D., Roters  S., Schnyder  C. C., Achache  F., Jonescu-Cuypers  C., Mermoud  A., Krieglstein  G.
ISSN
0721-832X (Print)
Publication state
Published
Issued date
11/2002
Volume
240
Number
11
Pages
918-23
Notes
Journal Article --- Old month value: Nov
Abstract
PURPOSE: The aim of this study was to understand the long-term outflow pathway mechanisms after deep sclerectomy - when collagen implant is resorbed - using ultrasound biomicroscopy (UBM). METHODS: Forty-three eyes of 32 patients with medically uncontrolled open-angle glaucoma at least 1 year after deep sclerectomy were studied in an observational, non-randomised, consecutive case series. Postoperatively 15 eyes (35.7%) had goniopuncture with the Nd:YAG laser. Four eyes (9.5%) had postoperative subconjunctival injections of mitomycin C and two eyes (4.7%) had an injection of 5-fluorouracil, because of intraocular pressure (IOP) increase. Complete examination and UBM of the filtering site were performed 1-6 years after surgery. The following parameters were assessed: (1) Presence of a subconjunctival filtering bleb; (2) presence and volume of an intrascleral cavity; (3) presence of a suprachoroidal hypoechoic area. RESULTS: Intraocular pressure decreased significantly from 28.1+/-2.5 mmHg preoperatively to 12.4+/-3.8 (range 7-25) mmHg at the time of UBM (at least 1 year after surgery). Forty eyes showed clinically a diffuse filtering bleb. UBM demonstrated a subconjunctival space in all eyes. In 39 eyes (92.8%) an intrascleral cavity was observed. The mean volume of this cavity was 1.8 (range 0.11-6.53) mm(3). In 19 eyes (45.2%) we observed a hypoechoic area in the suprachoroidal space. CONCLUSION: UBM examination demonstrated several aqueous humour drainage pathways. A low-reflective diffuse subconjunctival space meant persistent filtration in all eyes. More than 1 year after surgery 92.8% of eyes had a remaining intrascleral cavity. In almost half of the patients an additional suprachoroidal outflow was observed, significantly correlated with a lower IOP.
Keywords
*Absorbable Implants Aged Aged, 80 and over Aqueous Humor/physiology Collagen Female Glaucoma, Open-Angle/physiopathology/*surgery/*ultrasonography Humans Intraocular Pressure Male Middle Aged Postoperative Period Sclera/ultrasonography Sclerostomy
Pubmed
Web of science
Create date
28/01/2008 12:49
Last modification date
20/08/2019 15:33
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