Ultrasound biomicroscopy in recently postoperative 23-gauge transconjunctival vitrectomy sutureless self-sealing sclerotomy

Ultrasound biomicroscopy in recently postoperative 23-gauge transconjunctival vitrectomy sutureless self-sealing sclerotomy

Author Teixeira, Anderson Autor UNIFESP Google Scholar
Allemann, Norma Autor UNIFESP Google Scholar
Yamada, Ana Carolina Noriko Autor UNIFESP Google Scholar
Uno, Fausto Autor UNIFESP Google Scholar
Maia, Andre Autor UNIFESP Google Scholar
Bonomo, Pedro Paulo Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Purpose: To evaluate the ultrasound biomicroscopy (UBM) images of recent postoperative 23-gauge vitrectomy using single- and 2-step techniques.Methods: Twelve consecutive eyes were randomized and submitted to 23-gauge sutureless transconjunctival vitrectomy surgery divided in 2 groups: 1) using a beveled trocar to insert the microcannula (single step) and 2) using a stiletto blade to perform first a tunnel incision and then insert the microcannula (2 steps). All patients underwent 3-port vitrectomy with a straight angled incision of 20 degrees to 30 degrees. Ultrasound biomicroscopy examination was performed after 8 days to 10 days of surgery to locate and document the sclerotomy sites.Results: All patients had at least two diameters of the incision measured, and all wounds were constructed obliquely. Single-step sclerotomy mean size was 375.40 mu m +/- 83.70 mu m (range, 280.4-695 mu m) and coefficient of variation (CV) was 0.21. Two-step sclerotomy mean size was 315,5 mu m +/- 56.8 mu m (range, 253.2-362.5 mu m; CV - 0.26; P = 0.556). Two patients had an intraocular 5,000 centistokes silicone oil injection, one for each group. Only in the single-step incision was silicone oil observed in the wound.Conclusion: Twenty-three-gauge single- and two-step sclerotomies showed no statistical difference in site diameter at UBM. Postoperative UBM examination allowed the evaluation of the wound architecture. A large sample size comparing both surgical techniques should provide a statistical difference. RETINA 29:1305-1309, 2009
Keywords pars plana vitrectomy
ultrasound biomicroscopy
23-gauge vitrectomy
wound construction
single step
two steps
wound aspect
silicone oil
Language English
Date 2009-10-01
Published in Retina-the Journal Of Retinal And Vitreous Diseases. Philadelphia: Lippincott Williams & Wilkins, v. 29, n. 9, p. 1305-1309, 2009.
ISSN 0275-004X (Sherpa/Romeo, impact factor)
Publisher Lippincott Williams & Wilkins
Extent 1305-1309
Origin http://dx.doi.org/10.1097/IAE.0b013e3181b09487
Access rights Closed access
Type Article
Web of Science ID WOS:000270755800014
URI http://repositorio.unifesp.br/11600/45219

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