Changes in Retinal Nonperfusion Associated with Suppression of Vascular Endothelial Growth Factor in Retinal Vein Occlusion. Ophthalmology 2016 Mar;123(3):625-34.e1
Date
12/30/2015Pubmed ID
26712560Pubmed Central ID
PMC5482175DOI
10.1016/j.ophtha.2015.10.030Scopus ID
2-s2.0-84959484549 (requires institutional sign-in at Scopus site) 73 CitationsAbstract
PURPOSE: To assess changes in retinal nonperfusion (RNP) in patients with retinal vein occlusion (RVO) treated with ranibizumab.
DESIGN: Secondary outcome measure in randomized double-masked controlled clinical trial.
PARTICIPANTS: Thirty-nine patients with central RVO (CRVO) and 42 with branch RVO (BRVO).
METHODS: Subjects were randomized to 0.5 or 2.0 mg ranibizumab every month for 6 months and then were re-randomized to pro re nata (PRN) groups receiving either ranibizumab plus scatter laser photocoagulation or ranibizumab alone for an additional 30 months.
MAIN OUTCOME MEASURES: Comparison of percentage of patients with increased or decreased area of RNP in patients with RVO treated with 0.5 versus 2.0 mg ranibizumab, during monthly injections versus ranibizumab PRN, and in patients treated with ranibizumab PRN versus ranibizumab PRN plus laser.
RESULTS: In RVO patients given monthly injections of 0.5 or 2.0 mg ranibizumab for 6 months, there was no significant difference in the percentage who showed reduction or increase in the area of RNP. However, regardless of dose, during the 6-month period of monthly injections, a higher percentage of patients showed a reduction in area of RNP and a lower percentage showed an increase in area of RNP compared with subsequent periods of ranibizumab PRN treatment. After the 6-month period of monthly injections, BRVO patients, but not CRVO patients, randomized to ranibizumab PRN plus laser showed significantly less progression of RNP compared with patients treated with ranibizumab PRN.
CONCLUSIONS: Regardless of dose (0.5 or 2.0 mg), monthly ranibizumab injections promote improvement and reduce progression of RNP compared with PRN injections. The addition of scatter photocoagulation to ranibizumab PRN may reduce progression of RNP in patients with BRVO, but a statistically significant reduction was not seen in patients with CRVO.
Author List
Mir TA, Kherani S, Hafiz G, Scott AW, Zimmer-Galler I, Wenick AS, Solomon S, Han I, Poon D, He L, Shah SM, Brady CJ, Meyerle C, Sodhi A, Linz MO, Sophie R, Campochiaro PAMESH terms used to index this publication - Major topics in bold
AgedAngiogenesis Inhibitors
Combined Modality Therapy
Disease Progression
Double-Blind Method
Female
Fluorescein Angiography
Follow-Up Studies
Humans
Intravitreal Injections
Laser Coagulation
Male
Middle Aged
Ranibizumab
Regional Blood Flow
Retinal Vein
Retinal Vein Occlusion
Tomography, Optical Coherence
Vascular Endothelial Growth Factor A
Visual Acuity
