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LETTER TO THE EDITOR
Year : 2010  |  Volume : 3  |  Issue : 2  |  Page : 99-100 Table of Contents   

Combined photodynamic therapy and intravitreal ranibizumab as treatment for extrafoveal choroidal neovascularization associated with age-related macular degeneration


Smt. Kanuri Santhamma Retina Vitreous Centre, L V Prasad Eye Institute, Hyderabad, India

Date of Web Publication9-Jun-2010

Correspondence Address:
Jay Kumar Chhablani
Smt. Kanuri Santhamma Retina Vitreous Centre, L V Prasad Eye Institute, Kallam Anji Reddy Campus, L V Prasad Marg, Banjara Hills, Hyderabad - 500 034, Andhra Pradesh
India
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DOI: 10.4103/0974-620X.64241

PMID: 21217908

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How to cite this article:
Chhablani JK. Combined photodynamic therapy and intravitreal ranibizumab as treatment for extrafoveal choroidal neovascularization associated with age-related macular degeneration. Oman J Ophthalmol 2010;3:99-100

How to cite this URL:
Chhablani JK. Combined photodynamic therapy and intravitreal ranibizumab as treatment for extrafoveal choroidal neovascularization associated with age-related macular degeneration. Oman J Ophthalmol [serial online] 2010 [cited 2014 Oct 31];3:99-100. Available from: http://www.ojoonline.org/text.asp?2010/3/2/99/64241

Sir,

We report the efficacy of combination therapy using photodynamic therapy (PDT) and intravitreal ranibizumab for extrafoveal choroidal neovascular membrane (CNVM) associated with age-related macular degeneration (ARMD) in an Indian patient.

A 74-year-old man presented with decreased vision in the right eye (OD) since two years. He was a known diabetic on treatment. He was on anti-glaucoma medication for both the eyes (OU). On examination his best corrected visual acuity was 20/80 OD and 20/2000 in the left eye (OS). Biomicroscopic evaluation of the anterior segment of both the eyes was unremarkable except for aphakia. Intraocular pressures were 12 mmHg OU. Fundus examination OD revealed a subretinal membrane with retinal pigment epithelium alteration. The optic disc showed signs of glaucomatous cupping (cup-disc ratio 0.6). Fundoscopy OS showed macular scarring with glaucomatous cupping (cup-disc ratio 0.6). Fundus fluorescein angiography (FFA) showed typical lacy leakage suggestive of classic CNVM OD. Optical coherence tomography (OCT) showed retinal thickening with subretinal fluid [Figure 1]a. Considering the location of the CNVM and the single-eyed status of the patient, laser photocoagulation was thought to be best avoided. The patient underwent PDT (5.3 ml of Verteporfin in 24.3 ml of D5W, laser spot size of 2.6mm, using diode laser (wavelength 689nm) as per standard protocol followed by intravitreal ranibizumab (0.5 mg), two days later in the right eye. No treatment-related adverse effect was noted. At four weeks follow-up, visual acuity improved to 20/40. Clinical examination revealed absence of subretinal fluid but persistence of increased retinal thickness on OCT [Figure 1]b. A second intravitreal ranibizumab injection was performed. At eight weeks follow-up, visual acuity improved to 20/30. Clinical examination revealed a scarred CNVM [Figure 1]c. The fundus remained stable and visual acuity was maintained at the sixth month follow-up.

Combined treatment using PDT and bevacizumab has been shown to be effective in improving visual acuity and decreasing retreatment rates in choroidal neovascularization (CNV) associated with ARMD. [1] The combined regime is postulated to have a beneficial synergistic effect that reduces the need for cyclic injections. [1],[2]

Heier et al. reported greater efficacy with combination therapy using ranibizumab and PDT when compared to therapy with PDT alone. [3] VEGF inhibition alone could prevent neovascularization at an early developmental stage. However, once neovascular beds are established they are unlikely to regress with anti-VEGF therapy alone. [3]

Combination therapy treatment using PDT and ranibizumab as the first-line management in treatment of CNVM in one-eyed patients is a safe and effective treatment option, leading to a permanent cure. Combination therapy has a beneficial effect of reduced number of injections on reducing the attendant cumulative risk of endophthalmitis with each additional injection.

 
   References Top

1.Spaide RF. Rationale for combination therapies for choroidal neovascularization. Am J Ophthalmol 2006;141:149-56.   Back to cited text no. 1  [PUBMED]  [FULLTEXT]  
2.Dhalla MS, Shah GK, Blinder KJ, Ryan EH Jr, Mittra RA, Tewari A. Combined photodynamic therapy with verteporfin and intravitreal bevacizumab for choroidal neovascularization in age-related macular degeneration. Retina 2006;26:988-93.   Back to cited text no. 2  [PUBMED]  [FULLTEXT]  
3.Heier JS, Boyer DS, Ciulla TA, Ferrone PJ, Jumper JM, Gentile RC, et al. Ranibizumab combined with verteporfin photodynamic therapy in neovascular age-related macular degeneration: Year 1 results of the FOCUS Study. Arch Ophthalmol 2006;124:1532-42.  Back to cited text no. 3  [PUBMED]  [FULLTEXT]  


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