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  • Single intravitreal...

Single intravitreal dose of bevacizumab during trabeculectomy with mitomycin-C improved surgical success

Written By : Niveditha Subramani |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2023-08-13T20:00:00+05:30  |  Updated On 13 Aug 2023 8:00 PM IST
Single intravitreal dose of bevacizumab during trabeculectomy with mitomycin-C improved surgical success
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Trabeculectomy is a most popular surgery performed in glaucoma patients. Before the development of the trabeculectomy, the available surgical methods to treat intraocular pressure (IOP) reduction had a high rate of serious complications such as hypotony, flat anterior chamber, and endophthalmitis, however the surgery still needs validation on recovery.

A recent study reveals that bevacizumab was associated with a significant reduction in the need for additional medication or further surgery to achieve target IOP. Bevacizumab was also associated with larger blebs that were less inflamed and required fewer subsequent interventions. Bevacizumab given as a single intravitreal dose during trabeculectomy with mitomycin-C (MMC) resulted in improved surgical success as 12 months.

The researchers evaluated the efficacy and the effect of an intraoperative dose of intravitreal bevacizumab (Avastin) on surgical success following trabeculectomy with mitomycin-C (MMC) over 12 months. The findings are published in British Journal of Opthalmology.

The study was a single centre, parallel, double-blinded randomised, placebo-controlled trial recruiting patients requiring trabeculectomy for progressing glaucoma. Patients were randomised to intravitreal bevacizumab or placebo. The primary outcome of treatment success was defined by 'complete success' when intraocular pressure (IOP) remained less than a predefined target IOP without the requirement of topical medication, or 'qualified success' where topical medication was required to meet the predefined target IOP threshold. Secondary outcomes included the need for subsequent IOP-lowering interventions, and structural parameters associated with bleb function.

The key findings of the study

• Total of 131 patients, 65 were randomised to bevacizumab or 66 to placebo, 128 patients completed 12 months of follow-up (98%).

• At 12 months, success rates were higher in the bevacizumab group (complete success: 94% vs 83%; p=0.015; qualified success: 98% vs 90%; p=0.033).

• Within the placebo group, the requirement for topical therapy was higher at 6 months (p=0.045) and 12 months (p=0.045), and the requirement for bleb needling was higher at 1 month (p=0.035).

• Blebs within the bevacizumab group were larger at 1 month (p<0.001) and demonstrated less vessel inflammation (p<0.0001).

Researchers concluded that “Bevacizumab given as a single intravitreal dose during trabeculectomy with MMC resulted in improved surgical success as 12 months. Furthermore, bevacizumab was associated with a significant reduction in the need for additional medication or further surgery to achieve target IOP. Bevacizumab was also associated with larger blebs that were less inflamed and required fewer subsequent interventions.”

Reference: Landers JA, Mullany S, Craig JE. Intravitreal bevacizumab improves trabeculectomy survival at 12 months: the bevacizumab in trabeculectomy study-a randomised clinical trial. Br J Ophthalmol. 2023 Aug 4:bjo-2023-323526. doi: 10.1136/bjo-2023-323526. Epub ahead of print. PMID: 37541768.

Single intravitreal doseBevacizumabtrabeculectomyMitomycin-C (MMC)hypotonyflat anterior chamberendophthalmitisBritish Journal of Opthalmology.
Source : British Journal of Opthalmology.
Niveditha Subramani
Niveditha Subramani

    MSc. Neuroscience

    Niveditha Subramani a MSc. Neuroscience (Faculty of Medicine) graduate from University of Madras, Chennai. Ambitious in Neuro research having worked in motor diseases and neuron apoptosis is interested in more of new upcoming research and their advancement in field of medicine. She has an engrossed skill towards writing and her roles at Medical dialogue include Sr. Content writer. Her news covers new discoveries and updates in field of medicine. She can be reached at editorial@medicaldialogues.in

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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