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Triamcinolone Acetonide Injections Show Promise in Preventing Post-Vitrectomy Diabetic Macular Edema: Study

Written By : Dr. Shravani Dali |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2025-06-04T20:30:07+05:30  |  Updated On 5 Jun 2025 12:13 PM IST
Triamcinolone Acetonide Injections Show Promise in Preventing Post-Vitrectomy Diabetic Macular Edema: Study
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Researchers have found in a retrospective study from Zhejiang, China, that triamcinolone acetonide (TA) injections may effectively prevent diabetic macular edema (DME) following pars plana vitrectomy (PPV) in patients with proliferative diabetic retinopathy (PDR). This highlights the potential of triamcinolone acetonide as a valuable option in postoperative management to reduce the risk of DME.

A study was done to investigate the change of diabetic macular edema (DME) post vitrectomy and its risk factors.

This retrospective study included 365 eyes of 330 patients who underwent vitrectomy for proliferative diabetic retinopathy (PDR) with gradable optical coherence tomography (OCT) imaging from January 2018 to March 2022. The incidence of post vitrectomy DME (PV-DME) was defined as patients with a central retinal thickness (CRT) >300 µm by OCT among patients without preoperative DME. RESULTS: The cumulative incidence of PV-DME at 3mo was 40.1% (89/222), with its majority subtype of single diffused retinal thickening (66.2%) followed by single cystoid macular edema (27.0%). Multivariate Cox regression analysis indicated that a thicker preoperative CRT [hazard ratio (HR)=1.01, 95% confidence interval (CI) 1.00-1.02] and intraoperative internal limiting membrane peeling (HR=3.18, 95%CI 1.85-5.47) were associated with the presence of PV-DME, while intraoperative intravitreal injection of triamcinolone acetonide (HR=0.28, 95%CI 0.13-0.57) was protective against PV-DME.

In eyes with preoperative DME (n=143), the CRT decreased gradually from 468.3±177.7 µm preoperatively to 409.5±151.0 µm (P=0.027), 377.4±141.9 µm (P<0.001), and 368.0±157.6 µm (P<0.001) at 7d, 1 and 3mo postoperatively, respectively. Multivariate linear regression analysis indicated that only a thicker preoperative CRT (β=0.77, 95%CI 0.63-0.92) was associated with a decreasing postoperative CRT. PV-DME is a very common postoperative complication in patients with PDR. Triamcinolone acetonide could prevent its formation. Attention should be paid to patients with a thicker preoperative CRT and internal limiting membrane peeling.

Reference:

Zhou HT, Mei JH, Lin K, Deng CY, Pan A, Lin ZS, Lin J, Lin W, Lin Z. Changes of diabetic macular edema post vitrectomy in patients with proliferative diabetic retinopathy. Int J Ophthalmol. 2025 May 18;18(5):868-875. doi: 10.18240/ijo.2025.05.12. PMID: 40385120; PMCID: PMC12043297.

TriamcinoloneAcetonideInjectionsShowPromisePreventingPost-VitrectomyDiabeticMacular EdemaStudy
Source : International journal of Opthalmology
Dr. Shravani Dali
Dr. Shravani Dali

    Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted 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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