Sheathotomy vs. Intravitreal Triamcinolone for Branch Retinal Vein Occlusion
NCT ID: NCT00612261
Last Updated: 2008-02-11
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
NA
40 participants
INTERVENTIONAL
2006-10-31
2007-08-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Intravitreal triamcinolone acetonide (IVTA) injection has recently been reported to be effective in the treatment of macular edema of various etiologies.On the other hand, arteriovenous sheathotomy is a surgical method suggested for treatment of macular edema in BRVO patients, and has been reported to be efficacious in patients refractory to conventional focal or grid laser macular photocoagulation.Both treatment modalities have been reported to be associated with reductions in central macular thicknesses and improved visual acuities.
The purpose of the study is to compare the efficacies of arteriovenous (AV) sheathotomy and intravitreal triamcinolone (IVTA) injection in the treatment of macular edema associated with branch retinal vein occlusion (BRVO).
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Combined Vitrectomy and Triamcinolone in Macular Edema Secondary to Branch Retinal Vein Occlusion (BRVO)
NCT00642226
Vitrectomy for Branch Retinal Vein Occlusion
NCT00685490
Radial Optic Neurotomy in Central Retinal Vein Occlusion : a Randomized Trial
NCT00379223
Anti-VEGF Instead of Intraoperative Fan-shaped Photocoagulation in BRVO Combined With Vitreous Hemorrhage
NCT03637283
Outcomes of Vitrectomy Combined With Subtenon Triamcinolone Injection for the Idiopathic Epiretinal Membrane
NCT01630876
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
1
The group 1 patients receive AV sheathotomy for macular edema secondary to branch retinal vein occlusion.
Arteriovenous Crossing Sheathotomy
In each sheathotomy patient, a standard pars plana vitrectomy is performed, followed by surgical separation of the posterior cortical vitreous from the optic nerve and posterior retina. After the relevant arteriovenous crossing site is identified based on preoperative FA, a bent microvitreoretinal blade is used to open the internal limiting membrane and the nerve fiber layer over the artery, with the incision commencing 100-200 micrometer proximal to the AV crossing. The incision is continued parallel to and under the retinal arteriole, with a gentle lifting motion, until the common AV crossing sheath is encountered and incised in a side-to-side manner. The completion of AV dissection is confirmed by an elevation of the overlying artery.
2
The group 2 patients receive IVTA.
Intravitreal Triamcinolone Acetonide Injection
The IVTA group receive intravitreal injection of 4 mg/0.1 mL triamcinolone acetonide (40 mg/mL; Tamceton®; Hanall Pharmaceutical, Seoul, Korea). The injections are performed using 0.5% proparacaine drops (Alcaine®; Alcon Laboratories, Fort Worth, TX) for topical anesthesia under sterile conditions. The drug is injected through the inferotemporal pars plana using a 30-gauge needle. The correct intravitreal localization of the suspension, and perfusion of the optic nerve head, are then confirmed by indirect ophthalmoscopy.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Arteriovenous Crossing Sheathotomy
In each sheathotomy patient, a standard pars plana vitrectomy is performed, followed by surgical separation of the posterior cortical vitreous from the optic nerve and posterior retina. After the relevant arteriovenous crossing site is identified based on preoperative FA, a bent microvitreoretinal blade is used to open the internal limiting membrane and the nerve fiber layer over the artery, with the incision commencing 100-200 micrometer proximal to the AV crossing. The incision is continued parallel to and under the retinal arteriole, with a gentle lifting motion, until the common AV crossing sheath is encountered and incised in a side-to-side manner. The completion of AV dissection is confirmed by an elevation of the overlying artery.
Intravitreal Triamcinolone Acetonide Injection
The IVTA group receive intravitreal injection of 4 mg/0.1 mL triamcinolone acetonide (40 mg/mL; Tamceton®; Hanall Pharmaceutical, Seoul, Korea). The injections are performed using 0.5% proparacaine drops (Alcaine®; Alcon Laboratories, Fort Worth, TX) for topical anesthesia under sterile conditions. The drug is injected through the inferotemporal pars plana using a 30-gauge needle. The correct intravitreal localization of the suspension, and perfusion of the optic nerve head, are then confirmed by indirect ophthalmoscopy.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* best corrected Early Treatment Diabetic Retinopathy Study (ETDRS) scores ≤ 40 letters (Snellen equivalent ≤ 20/40
* intraretinal hemorrhages involving the foveal centers
* generalized breakdown of the inner blood-retina barrier, as documented by diffuse fluorescein leakage on angiography, or diffuse thickening of the retina on optical coherence tomography (OCT), with involvement of the foveal center and most of the macular area, and with foveal thicknesses ≥ 250 micrometer
Exclusion Criteria
* prior history of laser treatments including panretinal photocoagulation and focal/grid macular photocoagulation
* prior history of elevated intraocular pressure secondary to steroid treatment
* prior history of glaucoma or ocular hypertension
* presence of comorbid ocular conditions that might affect visual acuity (VA).
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Yonsei University
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Yonsei University
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Hyoung Jun Koh, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
Yonsei University Heath System
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Yonsei University Health System
Seoul, , South Korea
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
Parodi MB, Spasse S, Iacono P, Di Stefano G, Canziani T, Ravalico G. Subthreshold grid laser treatment of macular edema secondary to branch retinal vein occlusion with micropulse infrared (810 nanometer) diode laser. Ophthalmology. 2006 Dec;113(12):2237-42. doi: 10.1016/j.ophtha.2006.05.056. Epub 2006 Sep 25.
Chen SD, Sundaram V, Lochhead J, Patel CK. Intravitreal triamcinolone for the treatment of ischemic macular edema associated with branch retinal vein occlusion. Am J Ophthalmol. 2006 May;141(5):876-883. doi: 10.1016/j.ajo.2005.12.011. Epub 2006 Mar 9.
Lee H, Shah GK. Intravitreal triamcinolone as primary treatment of cystoid macular edema secondary to branch retinal vein occlusion. Retina. 2005 Jul-Aug;25(5):551-5. doi: 10.1097/00006982-200507000-00001.
Chalam KV, Shah GY, Shah VA. Vitrectomy with or without arteriovenous adventitial sheathotomy for macular edema associated with branch retinal vein occlusion. Am J Ophthalmol. 2005 Jun;139(6):1146; author reply 1146-7. doi: 10.1016/j.ajo.2005.02.024. No abstract available.
Hayashi K, Hayashi H. Intravitreal versus retrobulbar injections of triamcinolone for macular edema associated with branch retinal vein occlusion. Am J Ophthalmol. 2005 Jun;139(6):972-82. doi: 10.1016/j.ajo.2004.12.087.
Horio N, Horiguchi M. Effect of arteriovenous sheathotomy on retinal blood flow and macular edema in patients with branch retinal vein occlusion. Am J Ophthalmol. 2005 Apr;139(4):739-40. doi: 10.1016/j.ajo.2004.10.026.
Lakhanpal RR, Javaheri M, Ruiz-Garcia H, De Juan E Jr, Humayun MS. Transvitreal limited arteriovenous-crossing manipulation without vitrectomy for complicated branch retinal vein occlusion using 25-gauge instrumentation. Retina. 2005 Apr-May;25(3):272-80. doi: 10.1097/00006982-200504000-00004.
Ozkiris A, Evereklioglu C, Erkilic K, Ilhan O. The efficacy of intravitreal triamcinolone acetonide on macular edema in branch retinal vein occlusion. Eur J Ophthalmol. 2005 Jan-Feb;15(1):96-101. doi: 10.1177/112067210501500115.
Ozkiris A, Evereklioglu C, Erkilic K, Dogan H. Intravitreal triamcinolone acetonide for treatment of persistent macular oedema in branch retinal vein occlusion. Eye (Lond). 2006 Jan;20(1):13-7. doi: 10.1038/sj.eye.6701803.
Yamamoto S, Saito W, Yagi F, Takeuchi S, Sato E, Mizunoya S. Vitrectomy with or without arteriovenous adventitial sheathotomy for macular edema associated with branch retinal vein occlusion. Am J Ophthalmol. 2004 Dec;138(6):907-14. doi: 10.1016/j.ajo.2004.06.061.
Garcia-Arumi J, Martinez-Castillo V, Boixadera A, Blasco H, Corcostegui B. Management of macular edema in branch retinal vein occlusion with sheathotomy and recombinant tissue plasminogen activator. Retina. 2004 Aug;24(4):530-40. doi: 10.1097/00006982-200408000-00005.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
koh003
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.