ULTRASOUND BIOMICROSCOPY IN RECENTLY POSTOPERATIVE 23-GAUGE TRANSCONJUNCTIVAL VITRECTOMY SUTURELESS SELF-SEALING SCLEROTOMY
| Autor: | Anderson Teixeira, Norma Allemann, Ana C. N. Yamada, Pedro Paulo Bonomo, André Maia, Fausto Uno |
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| Rok vydání: | 2009 |
| Předmět: |
Adult
Male Microsurgery medicine.medical_specialty medicine.medical_treatment Microscopy Acoustic Statistical difference Ultrasound biomicroscopy Vitrectomy Single step Retinal detachment surgery Ophthalmology Humans Silicone Oils Medicine Postoperative Period Prospective Studies Aged Aged 80 and over Wound Healing business.industry Suture Techniques Retinal Detachment Epiretinal Membrane General Medicine Lens Subluxation Middle Aged Large sample Sclerostomy Female business Centistokes Conjunctiva Sclera |
| Zdroj: | Retina. 29:1305-1309 |
| ISSN: | 0275-004X |
| Popis: | 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 microm +/- 83.70 microm (range, 280.4-695 microm) and coefficient of variation (CV) was 0.21. Two-step sclerotomy mean size was 315.5 microm +/- 56.8 microm (range, 253.2-362.5 microm; 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. |
| Databáze: | OpenAIRE |
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