Journals / Glokom Katarakt / 2014 / Cilt: 9 - Sayı: 4

Trabeculotomy: Ab Externo and Ab Interno Schlemm Canal Surgery

Trabekülotomi: Ab Externo ve Ab İnterno Schlemm Kanal Cerrahisi

Pages
291–298
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Both ab externo and interno approaches can be performed combined with phacoemulsification

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Trabeculotomy is a Schlemm canal surgery to reduce the juxtacanalicular resistance between the trabecular meshwork and Schlemm channel which plays a major role in the pathophysiology of primary open angle glaucoma.
📊
Key Findings & Data:In recent years, the reports for suture and microcatheter 360 degree circumferential trabeculotomy increased its application for the treatment of adult glaucoma.
💡
Conclusion & Impact:Both ab externo and interno approaches can be performed combined with phacoemulsification
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Trabeculotomy is a Schlemm canal surgery to reduce the juxtacanalicular resistance between the trabecular meshwork and Schlemm channel which plays a major role in the pathophysiology of primary open angle glaucoma. To overcome the complications of standard trabeculectomy such as hypotony and late onset bleb related problems, alternative glaucoma surgeries have been performed. Among these the trabeculotomy has increasingly become popular. The effectiveness of trabeculotomy is well known in pediatric and congenital glaucomas. In recent years, the reports for suture and microcatheter 360 degree circumferential trabeculotomy increased its application for the treatment of adult glaucoma. Classically the trabeculotomy is performed ab externo however; it can also be performed ab interno, by clear corneal incision. Both ab externo and interno approaches can be performed combined with phacoemulsification

Özet

Trabekülotomi ameliyatı, primer açık açılı glokom patofizyolojisinde kritik önemi olan trabekülum ile Schlemm kanalı arasında yer alan jukstakanaliküler doku direncini ortadan kaldıran bir Schlemm kanal cerrahisidir. Halen standart kabul edilen trabekülektominin özellikle hipotoni ve geç bleb komplikasyonlarından kaçınmak için alternatif glokom cerrahileri geliştirilmiştir. Bu amaçla uygulanan birçok ameliyat yöntemleri içinde trabekülotominin yeri gittikçe artmaktadır. Trabekülotomi ameliyatının daha çok konjenital-pediyatrik glokom olguları için bir cerrahi seçenek olduğu bilinmektedir. Özellikle erişkinde sütür materyali ya da mikrokateterler ile yapılan 360 derece trabekülotomi için başarılı sonuçların bildirilmesi, bu yöntemlerin erişkin glokomunun tedavisinde de uygulama alanını arttırmıştır ve gittikçe daha popüler olması öngörülebilir. Klasik olarak ab externo yaklaşım ile uygulanan trabekülotomi, son yıllarda cerrahi teknik ve malzemelerdeki gelişmeler ile artık ab-interno yani saydam kornea yaklaşımıyla da yapılabilmektedir. Her iki yöntemle yapılan trabekülotomi ameliyatları fakoemülsifikasyon ile kombine edilebilmektedir

🔖

Cite This Article

HEPŞEN, İ. F., GÜLER, E., ATALAY, H. T., AKTAŞ, Z. P. (2014). Trabeculotomy: Ab Externo and Ab Interno Schlemm Canal Surgery. Glokom Katarakt, Cilt: 9 - Sayı: 4, 291–298. https://ajindex.com/articles/208466

References (16)

  1. Irshad FA, Mayfield MS, Zurakowski D, et al. Variation in Schlemm’s canal diameter and location by ultrasound biomicroscopy. Ophthalmology 2010;117:916-20
  2. Hong J, Xu J, Wei A, et al. Spectral-domain optical coherence tomographic assessment of Schlemm’s canal in Chinese subjects with primary open-angle glaucoma. Ophthalmology 2013;120:709-15
  3. Wang F, Shi G, Li X, et al. Comparison of Schlemm’s canal’s biological parameters in primary open-angle glaucoma and normal human eyes with swept source optical. J Biomed Opt 2012;17:116008
  4. Papadopoulos M, Khaw PT. Advances in the management of paediatric glaucoma. Eye 2007;21:1319-25
  5. Lutjen-Drecoll E, Shimizu T, Rohrbach M, et al. Quantitative analysis of ‘plaque material’ in the inner- and outer wall of Schlemm’s canal in normal- and glaucomatous eyes. Exp Eye Res 1986;42:443-55
  6. Ethier CR, Kamm RD, Palaszewski BA, et al. Calculations of flow resistance in the juxtacanalicular meshwork. Invest Ophthalmol Vis Sci 1986;27:1741-50
  7. Rauhut D, Rohen JW. Electron Microscopic study of the trabecular meshwork in alphachymotrypsin glaucoma. Albrecht von Graefes Archiv fur klinische und experimentelle Albrecht Von Graefes Arch Klin Exp Ophthalmol 1972;184:29-41
  8. Fleenor DL, Shepard AR, Hellberg PE, et al. TGFbeta2- induced changes in human trabecular meshwork: implications for intraocular pressure. Invest Ophthalmol Vis Sci 2006;47:226-34
  9. Fuchshofer R, Welge-Lussen U, Lutjen-Drecoll E. The effect of TGF-beta2 on human trabecular meshwork extracellular proteolytic system. Exp Eye Res 2003;77:757-65
  10. Tamm ER, Fuchshofer R: What increases outflow resistance in primary open-angle glaucoma? Surv Ophthalmol 2007;52:101-4
  11. Lu¨tjen-Drecoll E RJ, eds: Morphology of Aqueous Outflow Pathways in Normal and Glaucomatous Eyes. 2nd ed edn. St. Louis: Mosby 1996
  12. Bron AJ TR, Tripathi B, eds: Wolff’s Anatomy of the Eye and Orbit. 8th ed edn. London: Chapman & Hall Medical 1997
  13. Tasman W JE, eds. Duane’s Ophthalmology. Baltimore: Lippincott Williams&Wilkins 2005
  14. Grant WM: Experimental aqueous perfusion in enucleated human eyes. Arch Ophthalmol. 1963;69:783-801
  15. Rosenquist R, Epstein D, Melamed S, et al. Outflow resistance of enucleated human eyes at two different perfusion pressures and different extents of trabeculotomy. Curr Eye Res 1989;8:1233-40
  16. Schuman JS, Chang W, Wang N, et al. Excimer laser effects on outflow facility and outflow pathway morphology. Invest Ophthalmol Vis Sci 1