: With the development of artificial intelligence (A.I.), the optical coherence tomography angiography (OCTA) analysis of progression in hypertensive retinopathy could be improved. Our purpose was to use the OCTA to study the effect of uncontrolled dyslipidemia and hypertensive retinopathy on the retinal microvasculature and to identify a potential software update of the A.I. secondary to the OCTA analysis. By using our most relevant data, the A.I. software can be upgraded by introducing new mathematic formulas between the OCTA parameters and the lipid level. : We performed a prospective cohort study on 154 eyes of participants from Eastern Europe. We used a standardized protocol to collect data on past medical history of dyslipidemia and hypertension and OCTA to measure retinal vascular parameters. : The average age of the participants was 56.9 ± 9.1, with a minimum of 34 and a maximum of 82 and with a higher percentage of males: 55.8%. Statistically significant correlations were found for total cholesterol and skeleton total (r = -0.249; = 0.029), foveal avascular zone (FAZ), circularity and low-density lipoprotein (LDL) (r = 0.313; = 0.006), non-flow area (NFA) and LDL (r = 0.233; = 0.042), and vascular flow area (VFA) and LDL (r = -0.354; = 0.002). : Subjects with dyslipidemia and progressive hypertensive retinopathy had a reduction in microvascular density and vascular flow, a focal capillary non-perfusion, and an increased FAZ. Thus, by improving the A.I. system, our research aims to provide better OCTA monitoring, which could help in the early-stage detection of progression and development of A.I. screening programs, leading to increased efficiency in diagnosing patients.
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http://dx.doi.org/10.3390/jcm13247584 | DOI Listing |
J Clin Med
December 2024
Physio-Pathology and Immunology Department, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
: With the development of artificial intelligence (A.I.), the optical coherence tomography angiography (OCTA) analysis of progression in hypertensive retinopathy could be improved.
View Article and Find Full Text PDFPreeclampsia occurs in hypertensive pregnant women beyond 20 weeks of gestation and is accompanied by proteinuria. Hypertensive retinopathy is the most prevalent sign of preeclampsia, and eclampsia and it needs to be addressed at the earliest opportunity. This study was intended to gauge and assess the ophthalmic artery Doppler indices such as mean enveloped velocity, the pulsatility index (PI), and the resistivity index (RI) in normotensive, preeclamptic, and eclamptic pregnancies with their respective correlations.
View Article and Find Full Text PDFThis article presents a clinical case of ocular thrombotic microangiopathy of mixed origin (antiphospholipid syndrome, malignant arterial hypertension, multigenic thrombophilia). Multimodal imaging of the fundus provides a detailed assessment of its structures. Pathological changes in the choroid, the "retinal pigment epithelium - Bruch's membrane" complex, and the neurosensory retina, identified using fundus photography, short-wavelength autofluorescence, optical coherence tomography (OCT), and OCT angiography, are described as nonspecific in nature.
View Article and Find Full Text PDFJAMA Ophthalmol
December 2024
Second Department of Ophthalmology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Thessaloniki, Greece.
Importance: Commercial mydriatics administered in preterm infants during retinopathy of prematurity (ROP) screening have been associated with various cardiorespiratory and gastrointestinal adverse events.
Objective: To examine whether microdrops of a combined mixture of 1.67% phenylephrine and 0.
Diagnostics (Basel)
November 2024
Centre for Trusted Internet and Community, National University of Singapore, Singapore 119077, Singapore.
Diabetic retinopathy, hypertensive retinopathy, glaucoma, and contrast-related eye diseases are well-recognized conditions resulting from high blood pressure, rising blood glucose, and elevated eye pressure. Later-stage symptoms usually include patches of cotton wool, restricted veins in the optic nerve, and buildup of blood in the optic nerve. Severe consequences include damage of the visual nerve, and retinal artery obstruction, and possible blindness may result from these conditions.
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