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Different risk profiles for progression of nonproliferative diabetic retinopathy: a 2-year study

dc.contributor.authorMarques, Inês P.
dc.contributor.authorRibeiro, Maria L.
dc.contributor.authorSantos, Torcato P.
dc.contributor.authorMendes, Luis G.
dc.contributor.authorReste-Ferreira, Débora
dc.contributor.authorSantos, Ana Rita
dc.contributor.authorLobo, Conceição L.
dc.contributor.authorCunha-Vaz, José G.
dc.date.accessioned2023-03-17T16:58:27Z
dc.date.available2023-03-17T16:58:27Z
dc.date.issued2023
dc.description.abstractCharacterization of 2-year progression of different risk phenotypes in eyes with mild and moderate nonproliferative diabetic retinopathy (NPDR) in type 2 diabetes (T2D). A 2-year prospective longitudinal cohort study (CORDIS, NCT03696810) was conducted. Ophthalmological examinations were performed including best corrected visual acuity, color fundus photography and optical coherence tomography (OCT and OCTA). OCT metrics, central retinal thickness and ganglion cell layer + inner plexiform layer (GCL + IPL) thickness were analyzed. OCTA metrics, vessel density (VD), perfusion density (PD) and area of intercapillary spaces (AIS) were obtained from superficial and deep capillary plexus (SCP, DCP). Only phenotype C identified by decreased VD ≥ 2 SD of healthy controls and phenotype B identified by subclinical macular edema with decreased VD < 2 SD of healthy controls were included. One hundred twenty-two eyes from T2D individuals were included in study; 65 eyes (53%) were classified as phenotype B and 57 eyes (47%) as phenotype C. For phenotype B, progression was associated with thinning of the GCL + IPL (ETDRS 35, 1 year p = 0.013, 2 year p < 0.001; ETDRS 43–47, 2 year p = 0.003) and vessel closure involving mainly the DCP for both ETDRS grades (ETDRS 35, 1 year p = 0.025, 2 year p = 0.034; ETDRS 43–47, 1 year p = 0.011). For phenotype C there was also progressive thinning of the GCL + IPL (ETDRS 35, in both years p ≤ 0.001; ETDRS 43–47, 1 year p = 0.002, 2 year p = 0.001), with vessel closure involving mainly SCP (ETDRS 35, 1 year p = 0.012, 2 year p = 0.023 in full-retina), which appeared to stabilize at maximal values in ETDRS grade 43–47 at the end of 2 years. ETDRS severity changes at the end of the 2-year period showed that worsening was associated with phenotype C with changes involving predominantly the SCP (VD, p = 0.005; PD, p = 0.008; AIS, p = 0.005). Association between ETDRS classification of NPDR severity and identification of different risk phenotypes offers new perspective to predict disease progression in T2D individuals with NPDR.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMarques, I.P., Ribeiro, M.L., Santos, T.P. et al. Different Risk Profiles for Progression of Nonproliferative Diabetic Retinopathy: A 2-Year Study. Ophthalmol Ther 12, 485–500 (2023). https://doi.org/10.1007/s40123-022-00623-7pt_PT
dc.identifier.doi10.1007/s40123-022-00623-7pt_PT
dc.identifier.eissn2193-6528
dc.identifier.issn2193-8245
dc.identifier.urihttp://hdl.handle.net/10400.22/22531
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relation.publisherversionhttps://link.springer.com/article/10.1007/s40123-022-00623-7pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectDiabetespt_PT
dc.subjectRetinopathypt_PT
dc.subjectCapillary closurept_PT
dc.subjectNeurodegenerationpt_PT
dc.titleDifferent risk profiles for progression of nonproliferative diabetic retinopathy: a 2-year studypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage500pt_PT
oaire.citation.startPage485pt_PT
oaire.citation.titleOphthalmology and Therapypt_PT
oaire.citation.volume12pt_PT
person.familyNameSantos
person.givenNameAna Rita
person.identifier.ciencia-id0911-4138-0C3A
person.identifier.orcid0000-0003-0139-0285
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd71931b8-d869-4334-993c-ba14ad713f01
relation.isAuthorOfPublication.latestForDiscoveryd71931b8-d869-4334-993c-ba14ad713f01

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