osterior segment findings by spectral-domain optical coherence tomography and clinical associations in active toxoplasmic retinochoroiditi

Autor(es)

Oliver, Genevieve F. ^{[1, 2]} ; Ferreira, Lisia Barros ^[2] ; Vieira, Barbara R. ^[1] ; Arruda, Sigrid ^[1] ; Araujo, Michelle ^[1] ; Carr, Jillian M. ^[2] ; Smith, Justine R. ^[2] ; Furtado, Joao M. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Ribeirao Preto Med Sch, Div Ophthalmol, Ave Bandeirantes 3900, BR-14049900 Ribeirao Preto, SP - Brazil

^[2] Flinders Univ S Australia, Coll Med & Publ Hlth, Adelaide, SA - Australia

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 12, n. 1 JAN 21 2022.
• Citações Web of Science: 0

Resumo

Toxoplasmic retinochoroiditis is a common, potentially blinding parasitic infection. We sought to define the spectrum and frequency of signs of active toxoplasmic retinochoroiditis by spectral domain optical coherence tomography (SD-OCT), and to identify clinical associations. Ninety eyes of 90 individuals presenting consecutively to a tertiary referral uveitis service with active toxoplasmic retinochoroiditis and gradable SD-OCT scans were evaluated prospectively. SD-OCT features were collated, and associations with lesion location, primary versus recurrent episode, serological status, human immunodeficiency virus infection and best-corrected Snellen visual acuity were explored. Active toxoplasmic retinochoroiditis presented with thickened (65%) and hyperreflective (61%) retina, choroidal thickening (55%) and hyporeflectivity (61%), hyperreflective vitreous dots (80%) and deposits (36%), and posterior hyaloid thickening (35%) on SD-OCT. Most signs occurred with similar frequency across clinical groups. Retinal hyporeflectivity (17%) was significantly associated with a visual acuity of 20/200 or worse at resolution. Our observations demonstrate that active toxoplasmic retinochoroiditis has diverse SD-OCT signs and that none are universally present. Retinal hyporeflectivity-suggesting liquefactive necrosis-predicts poor visual outcome. (AU)

• Processo FAPESP: 17/06680-4 - Ocorrência de cegueira e deficiência visual em pacientes com toxoplasmose ocular seguidos no Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (HCFMRP-USP)
• Beneficiário: Michelle Rodrigues Araujo
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica