136 results on '"Marques-Neves, Carlos"'
Search Results
2. Gene and cell therapy for age-related macular degeneration: A review
- Author
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Trincão-Marques, José, Ayton, Lauren N., Hickey, Doron G., Marques-Neves, Carlos, Guymer, Robyn H., Edwards, Thomas L., and Sousa, David Cordeiro
- Published
- 2024
- Full Text
- View/download PDF
3. Complete blood count parameters as biomarkers of retinopathy of prematurity: a Portuguese multicenter study
- Author
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Fevereiro-Martins, Mariza, Santos, Ana Carolina, Marques-Neves, Carlos, Guimarães, Hercília, and Bicho, Manuel
- Published
- 2023
- Full Text
- View/download PDF
4. A Delphi study on the clinical management of age-related macular degeneration
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Gomes, Nuno, Meireles, Angelina, Carneiro, Ângela, Silva, Rufino, Campos, António, Duarte, Lilianne, Flores, Rita, and Marques-Neves, Carlos
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- 2022
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- View/download PDF
5. Retinopathy of prematurity: contribution of inflammatory and genetic factors
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Fevereiro-Martins, Mariza, Guimarães, Hercília, Marques-Neves, Carlos, and Bicho, Manuel
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- 2022
- Full Text
- View/download PDF
6. Retinopathy of Prematurity in Eight Portuguese Neonatal Intensive Care Units: Incidence, Risk Factors, and Progression—A Prospective Multicenter Study.
- Author
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Fevereiro-Martins, Mariza, Santos, Ana Carolina, Marques-Neves, Carlos, Bicho, Manuel, and Guimarães, Hercília
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RISK assessment ,PEARSON correlation (Statistics) ,RESEARCH funding ,ERYTHROCYTES ,T-test (Statistics) ,NEONATAL intensive care units ,SCIENTIFIC observation ,MULTIPLE regression analysis ,NEONATAL intensive care ,DESCRIPTIVE statistics ,MULTIVARIATE analysis ,BLOOD platelet transfusion ,CHI-squared test ,MANN Whitney U Test ,LONGITUDINAL method ,ENTERAL feeding ,RESEARCH ,GESTATIONAL age ,SEPSIS ,BIRTH weight ,BLOOD transfusion ,CONFIDENCE intervals ,DATA analysis software ,RETROLENTAL fibroplasia ,DISEASE progression ,DISEASE incidence ,DISEASE risk factors - Abstract
Background/Objectives: Retinopathy of prematurity (ROP) is a retinal neovascular disease affecting preterm infants. Identifying risk factors for its development and progression is critical for effective screening and prevention. This study aimed to analyze the incidence of ROP and identify key risk factors for its development and progression. Methods: We conducted a prospective, observational cohort study on 455 neonates (gestational age [GA] < 32 weeks or birth weight < 1500 g) across eight Portuguese NICUs. Results: ROP incidence was 37.8%, with 4.6% requiring treatment. Multivariate analysis identified low GA and the number of red blood cell (RBC) transfusions as significant factors for ROP development and progression. After adjusting for these variables, platelet transfusions, high maximum fraction of inspired oxygen (FiO
2 ) in the second week, and surfactant use remained significantly associated with ROP development, while early and late sepsis, maternal chronic hypertension, and delayed enteral nutrition were associated with progression to ROP requiring treatment. Conclusions: These findings underscore the importance of addressing low GAs and adult RBC transfusions in ROP risk management and suggest that maximum FiO2 , platelet transfusions, and sepsis also play crucial roles. Larger studies are needed to validate these results and explore preventive interventions, particularly regarding the impact of multiple adult RBC transfusions on fetal hemoglobin percentages. [ABSTRACT FROM AUTHOR]- Published
- 2024
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- View/download PDF
7. High intensity focused ultrasound for glaucoma: 1-year results from a prospective pragmatic study
- Author
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Marques, Raquel E., Ferreira, Nuno P., Sousa, David C., Barata, André Diogo, Sens, Paula, Marques-Neves, Carlos, and Abegão Pinto, Luis
- Published
- 2021
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- View/download PDF
8. Development of a Smartphone-Based System for Intrinsically Photosensitive Retinal Ganglion Cells Targeted Chromatic Pupillometry.
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Sousa, Ana Isabel, Marques-Neves, Carlos, and Vieira, Pedro Manuel
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RETINAL ganglion cells , *PUPILLOMETRY , *MELANOPSIN , *MEDICAL screening - Abstract
Chromatic Pupillometry, used to assess Pupil Light Reflex (PLR) to a coloured light stimulus, has regained interest since the discovery of melanopsin in the intrinsically photosensitive Retinal Ganglion Cells (ipRGCs). This technique has shown the potential to be used as a screening tool for neuro-ophthalmological diseases; however, most of the pupillometers available are expensive and not portable, making it harder for them to be used as a widespread screening tool. In this study, we developed a smartphone-based system for chromatic pupillometry that allows targeted stimulation of the ipRGCs. Using a smartphone, this system is portable and accessible and takes advantage of the location of the ipRGCs in the perifovea. The system incorporates a 3D-printed support for the smartphone and an illumination system. Preliminary tests were carried out on a single individual and then validated on eleven healthy individuals with two different LED intensities. The average Post-Illumination Pupil Light Response 6 s after the stimuli offsets (PIPR-6s) showed a difference between the blue and the red stimuli of 9.5% for both intensities, which aligns with the studies using full-field stimulators. The results validated this system for a targeted stimulation of the ipRGCs for chromatic pupillometry, with the potential to be a portable and accessible screening tool for neuro-ophthalmological diseases. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
9. Asymptomatic chronic red eye: a surgical technique case report
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Matos, Diogo Bernardo, Guerra, Paulo, José, Patrícia, Ferreira, Rui, Quintas, Ana, Marques-Neves, Carlos, and Repositório da Universidade de Lisboa
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Neoplasia ,Case report ,Topical chemotherapy ,Surgical technique ,Ocular surface squamous neoplasia ,Tumour - Abstract
© 2023 Published by Elsevier Ltd on behalf of IJS Publishing Group Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/), Introduction and importance: Ocular Surface Squamous-cell Neoplasia (OSSN) is an infrequent diagnosis whose clinical suspicion assumes great importance and should not be overlooked. The following case-report aims to describe the diagnosis and treatment of a patient with OSSN whose complaints were mild in comparison to the severity of the disease. The chosen surgical technique was paramount for a disease-free outcome while minimizing the scarring effects of surgical removal. Case presentation: Patient presented mild discomfort right eye and painless persistent hyperaemia. Slit-lamp observation showed a clear diagnosis and lesion's extent evaluated through multimodal imaging. After surgical excision the patient underwent topical ocular treatment with mitomycin-C for a higher margin of safety even before the pathology results were available. Discussion: Ancillary exam technology improvement has allowed a higher margin of safety while determining the extent of OSSN lesions. In the absence of clear diagnostic criteria and guidelines, clinical reasoning and OSSN awareness are critical for timely diagnosis and treatment, as several treatment options are available, allowing an increasing number of patients to be treated non-invasively. In this case-report, we highlight the importance of early-recognition and the reasoning for choosing a combined treatment option with a higher margin of safety. Conclusion: Early recognition and prompt treatment of OSSN lesions is of paramount importance to avoid ocular invasiveness and potentially preclude both ocular and systemic complication. The choice of a combined surgical and medical approach may provide a higher margin of safety for suitable cases. This patient is currently disease-free at 6-month follow-up.
- Published
- 2023
10. Aiming for Single Digit Intraocular Pressure and Drop-Free Surgery in Glaucoma: Trabeculectomy with Mitomycin C and Intracamerular Bevacizumab
- Author
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Lopes, Patrícia José Figueiredo, Barão, Rafael, Barata, André, Marques-Neves, Carlos, Silva, José Pedro, and Abegão Pinto, Luís
- Subjects
Bevacizumab ,Mitomicina ,Trabeculectomia ,Mitomycin ,Glaucoma ,Trabeculectomy ,Pressão Intraocular ,Intraocular Pressure - Abstract
INTRODUCTION: Our purpose was to assess patients with single digit intraocular pressure (IOP) values and drop-free in primary trabeculectomy after using mitomycin C (MMC augmented with intracamerular bevacizumab). MÉTODOS: Retrospective, observational and comparative study. Charts from patients who underwent trabeculectomy and with IOP ≤9 mmHg at the last follow-up were included. Sub-analysis of patients screened between Oct 2015 and Mar 2019, for inclusion criteria of ≤9 mmHg at last follow-up (24 months). RESULTS: From 110 eyes screened in the initial study, 30 had the intended IOP target (MMC only: 11; MMC+bevacizumab: 19; 26% vs 41%, respectively, odds ratio 1.78, 95% IC (0.80 - 4.89), p=0.178). All these low-IOP patients were drop-free in this moment. No systemic adverse events were found and no vision-threatening complications were recorded. CONCLUSION: Adding intracamerular bevacizumab to MMC in trabeculectomy can be particularly useful in low-target IOP surgeries (such as normal tension glaucoma or very advanced glaucomas) comparing with trabeculectomy with MMC alone., INTRODUCTION: O nosso objetivo foi descrever as características dos doentes submetidos a trabeculectomia com mitomicina C (MMC) e bevacizumab intracamerular que obtiveram valoresde pressão intraocular de apenas um dígito sem recurso a medicação antihipertensora. MÉTODOS: Estudo retrospectivo, observacional e comparativo. Subanálise de doentes que realizaram trabeculectomia com MMC e bevacizumab intracamerular entre Outubro de 2015 e Março de 2019, com critério de inclusão de PIO ≤ 9 mmHg no último follow-up (24 meses). RESULTADOS: Dos 110 olhos presentes no primeiro estudo, 30 obtiveram PIO ≤ 9mmHg aos 24 meses: grupo trabeculectomia com MMC: 11 (26%); grupo trabeculectomia com MCM+bevacizumab: 19 (41%), (odds ratio 1,78, 95% IC (0,80 – 4,89), p=0,178). Nenhum doente estava a realizar medicação antihipertensora. Não foram detectados efeitos adversos sistémicos e a taxa de complicações foi baixa. CONCLUSÃO: Adicionar bevacizumab intracamerular à MMC na trabeculectomia pode ser particularmente útil em cirurgias com PIO-alvo baixas (tal como glaucoma normotensional ou muito avançado), comparando com trabeculectomia apenas com MMC.
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- 2022
- Full Text
- View/download PDF
11. Genetic Modulation of the Erythrocyte Phenotype Associated with Retinopathy of Prematurity—A Multicenter Portuguese Cohort Study.
- Author
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Fevereiro-Martins, Mariza, Santos, Ana Carolina, Marques-Neves, Carlos, Guimarães, Hercília, and Bicho, Manuel
- Subjects
RETROLENTAL fibroplasia ,WEIGHT in infancy ,ERYTHROCYTE deformability ,PHENOTYPIC plasticity ,METHYLENETETRAHYDROFOLATE reductase ,COHORT analysis ,GENE expression ,ERYTHROCYTES - Abstract
The development of retinopathy of prematurity (ROP) may be influenced by anemia or a low fetal/adult hemoglobin ratio. We aimed to analyze the association between DNA methyltransferase 3 β (DNMT3B) (rs2424913), methylenetetrahydrofolate reductase (MTHFR) (rs1801133), and lysine-specific histone demethylase 1A (KDM1A) (rs7548692) polymorphisms, erythrocyte parameters during the first week of life, and ROP. In total, 396 infants (gestational age < 32 weeks or birth weight < 1500 g) were evaluated clinically and hematologically. Genotyping was performed using a MicroChip DNA on a platform employing iPlex MassARRAY
® . Multivariate regression was performed after determining risk factors for ROP using univariate regression. In the group of infants who developed ROP red blood cell distribution width (RDW), erythroblasts, and mean corpuscular volume (MCV) were higher, while mean hemoglobin and mean corpuscular hemoglobin concentration (MCHC) were lower; higher RDW was associated with KDM1A (AA), MTHFR (CC and CC + TT), KDM1A (AA) + MTHFR (CC), and KDM1A (AA) + DNMT3B (allele C); KDM1A (AA) + MTHFR (CC) were associated with higher RDW, erythroblasts, MCV, and mean corpuscular hemoglobin (MCH); higher MCV and MCH were also associated with KDM1A (AA) + MTHFR (CC) + DNMT3B (allele C). We concluded that the polymorphisms studied may influence susceptibility to ROP by modulating erythropoiesis and gene expression of the fetal/adult hemoglobin ratio. [ABSTRACT FROM AUTHOR]- Published
- 2023
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- View/download PDF
12. Retinopathy of prematurity: A review of pathophysiology and signaling pathways.
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Fevereiro-Martins, Mariza, Marques-Neves, Carlos, Guimarães, Hercília, and Bicho, Manuel
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RETROLENTAL fibroplasia , *DIABETIC retinopathy , *VASCULAR endothelial growth factors , *CELLULAR signal transduction , *PATHOLOGICAL physiology , *NITRIC-oxide synthases - Abstract
• Ischemia/reperfusion neurovascular degeneration of ROP is oxidative stress dependent. • Succinate and molecules of the HIF pathway mediate pathological neovascularization. • The extracellular matrix participates in hypoxia-induced retinal neovascularization. • Vasorepulsive molecules prevent the revascularization of the avascular zone. • Metalloproteinases/heparanase are upregulated in pathological neovascularization. Retinopathy of prematurity (ROP) is a vasoproliferative disorder of the retina and a leading cause of visual impairment and childhood blindness worldwide. The disease is characterized by an early stage of retinal microvascular degeneration, followed by neovascularization that can lead to subsequent retinal detachment and permanent visual loss. Several factors play a key role during the different pathological stages of the disease. Oxidative and nitrosative stress and inflammatory processes are important contributors to the early stage of ROP. Nitric oxide synthase and arginase play important roles in ischemia/reperfusion-induced neurovascular degeneration. Destructive neovascularization is driven by mediators of the hypoxia-inducible factor pathway, such as vascular endothelial growth factor and metabolic factors (succinate). The extracellular matrix is involved in hypoxia-induced retinal neovascularization. Vasorepulsive molecules (semaphorin 3A) intervene preventing the revascularization of the avascular zone. This review focuses on current concepts about signaling pathways and their mediators, involved in the pathogenesis of ROP, highlighting new potentially preventive and therapeutic modalities. A better understanding of the intricate molecular mechanisms underlying the pathogenesis of ROP should allow the development of more effective and targeted therapeutic agents to reduce aberrant vasoproliferation and facilitate physiological retinal vascular development. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
13. Higher optic nerve sheath diameters are associated with lower ocular blood flow velocities in glaucoma patients
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Willekens, Koen, Abegão Pinto, Luís, Vandewalle, Evelien, Marques-Neves, Carlos, and Stalmans, Ingeborg
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- 2014
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14. Trabeculectomy with mitomycin C alone or coupled with intracamerular bevacizumab? A 2-year comparative study.
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José, Patrícia, Teixeira, Filipa Jorge, Barão, Rafael, Sousa, David Cordeiro, Marques, Raquel Esteves, De Oliveira Barata, Andre Diogo, Marques-Neves, Carlos, Alves, Marta, Luísa Papoila, Ana, Stalmans, Ingeborg, Pedro Silva, José, and Abegão Pinto, Luis
- Abstract
Purpose To compare outcomes of primary trabeculectomy using either mitomycin C (MMC) alone versus MMC augmented with intracamerular bevacizumab in patients with open-angle glaucoma. Methods Retrospective, cohort, two-centre, comparative study. Patients' data were screened between October 2015 and March 2019, with inclusion requiring a minimum follow-up of 24 months. Primary outcome was intraocular pressure (IOP) lowering at 24 months, with surgical success defined with different maximum IOP targets (=18, =16 and =14 mm Hg) and at least 30% reduction and higher than 5 mm Hg. Absolute success was achieved if no IOP-lowering medication was needed and a qualified success if otherwise. Safety outcomes were analysed. Results A total of 110 eyes underwent trabeculectomy with MMC, 51 of these combined with intracamerular bevacizumab. Both strategies were effective in terms of IOP lowering (baseline vs 2 years postoperatively: 24.4 (8.0) mm Hg vs 12.1 (5.3) mm Hg in the MMC group; 25.1 (8.7) vs 10.8 (3.8) mm Hg in the MMC+bevacizumab group; p<0.001 in both comparisons). The MMC+bevacizumab group had a significant difference towards higher efficacy on absolute success rates at all targets (IOP=14 or =16 or =18 mm Hg; p=0.010, p=0.039 and p=0.007, respectively). The large majority (93%) of the MMC+bevacizumab group was drop-free at 24 months, and 41% had IOP below 10 mm Hg. Complication rates were low and similar between groups, with no systemic adverse events. Conclusions Intracamerular bevacizumab in MMC-augmented primary trabeculectomy increases the chances of obtaining low IOP outcomes. This strategy may be useful when planning for surgeries aiming at target pressures in the low teens. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
15. Treatment options and patient monitorization
- Author
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Figueira, João, Henriques, José, Carneiro, Ângela, Marques-Neves, Carlos, Flores, Rita, Castro-Sousa, João Paulo, Meireles, Angelina, Gomes, Nuno, Nascimento, João, Amaro, Miguel, Silva, Rufino, and NOVA Medical School|Faculdade de Ciências Médicas (NMS|FCM)
- Subjects
Ophthalmology ,SDG 3 - Good Health and Well-being ,Diabetic retinopathy ,Center-involving diabetic macular edema ,Dexamethasone intravitreal implant ,Anti-vascular endothelial growth factor - Abstract
Diabetic macular edema (DME) is the main cause of visual impairment associated with diabetic retinopathy (DR) and macular laser, during approximately three decades, and was the single treatment option. More recently, intravitreous injections of anti-angiogenics and corticoster-oids modified the treatment paradigm associated with significant vision improvements. Nevertheless, not all patients respond satisfactorily to anti-VEGF or corticosteroid injections, so an adequate treatment choice and a prompt switch in therapeutic class is recommended. Several algorithms and guidelines have been proposed for treating center involving DME to improve patients’ vision and quality of life. However, in Portugal, such guidelines are lacking. The present review aimed to provide guidelines for the treatment options and patient monitorization in the management of center-involving DME. We recommend anti-vascular endothelial growth factor (VEGF) as first-line therapy after a clinical evaluation accompanied by a rigorous metabolic control. Depending on the response obtained after 3–6 monthly intravitreal injections we suggest switching outside the class in case of a non-responder, maintaining the anti-VEGF-therapy in responders to anti-angiogenics. The treatment regimen for Dexamethasone intravitreal implant (DEXii) should be pro-re-nata with bi-monthly or quarterly monitoring visits (with a scheduled visit at 6–8 weeks after DEXii for intraocular pressure control). If a patient does not respond to DEXii, switch again to anti-VEGF therapy, combine therapies, or re-evaluate patients diagnose. There is a resilient need to understand the disease, its treatments, regimens available, and convenience for all involved to propose an adequate algorithm for the treatment of diabetic retinopathy (DR) and DME in an individualized regimen. Further understanding of the contributing factors to the development and progression of DR should bring new drug discoveries for more effective and better-tolerated treatments. publishersversion published
- Published
- 2021
16. Amlodipine effects on vasomotion in rabbit external ophthalmic artery
- Author
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Delgado, Esmeralda, Marques-Neves, Carlos, Rocha, Isabel, Sales-Luís, José, and Silva-Carvalho, Luís
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- 2010
- Full Text
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17. Ocular pulse amplitude and Doppler waveform analysis in glaucoma patients
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Abegão Pinto, Luís, Vandewalle, Evelien, Willekens, Koen, Marques-Neves, Carlos, and Stalmans, Ingeborg
- Published
- 2014
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18. Visual field loss in optic disc drusen patients correlates with central retinal artery blood velocity patterns
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Abegão Pinto, Luís, Vandewalle, Evelien, Marques-Neves, Carlos, and Stalmans, Ingeborg
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- 2014
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19. Long-Term Effect of Anti-Vascular Endothelial Growth Factor (Anti-VEGF) Injections in Choroidal Neovascularization Secondary to Angioid Streaks.
- Author
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Torres-Costa, Sónia, Bernardes, João, Mano, Sofia Sousa, Medeiros-Pinto, Joana, Abreu, Ana Carolina, Furtado, Maria João, Silva, Rufino, Marques-Neves, Carlos, Falcão-Reis, Fernando, Carneiro, Ângela, Colaço, Luísa, and Falcão, Manuel
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RESEARCH ,INJECTIONS ,RETROSPECTIVE studies ,TREATMENT effectiveness ,PATHOLOGIC neovascularization ,VISUAL acuity ,DESCRIPTIVE statistics ,VASCULAR endothelial growth factors ,RETINAL diseases - Abstract
Purpose. This study aimed to evaluate the long-term effectiveness of intravitreal anti-vascular endothelial growth factor (VEGF) injections in the treatment of choroidal neovascularization (CNV) associated with angioid streaks. Methods. Multicenter retrospective cohort study, including eyes with CNV secondary to angioid streaks treated with anti-VEGF injections, were performed. Best-corrected visual acuity (BCVA) in ETDRS letters; qualitative and quantitative (foveal thickness) OCT parameters; anti-VEGF type; and number of injections were collected at baseline and at 3, 6, 12, 24, 36, 48, 60, and 72 months. Results. Thirty-nine eyes from 29 patients, 17 (58.6%) females, were included. The mean follow-up time was 69.4 ± 34.5 months. BCVA was 59.3 ± 23.3 letters at baseline and 63.7 ± 21.9 letters at 48 months. At 3 months, BCVA improved 6.9 ± 11.7 letters (P = 0.003). Then, BCVA remained stable. The mean foveal thickness decreased from 343.3 ± 120.2 μm at baseline to 268.3 ± 65.4 at 48 months (P = 0.021). The mean number of injections was 4.6 ± 2.1 at 12 months, decreasing to 1.7 ± 2.4 injections between 36 and 48 months (P = 0.093). Conclusion. This real-world study suggests that the functional and morphologic response to anti-VEGF therapy for CNV related to angioid streaks is generally satisfactory and maintained in the long term. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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20. Neurosensory detachment in acute myeloid leukemia
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Lopes, Patrícia José Figueiredo, Inês, Marques-Neves, Carlos, and Pinto Ferreira, Nuno
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genetic structures ,sense organs ,eye diseases - Abstract
Neurosensory retinal detachment is a rare ocular finding in acute myeloid leukemia. We describe a case of a 25 year-old female with history of acute myeloid leukemia under chemotherapy that was referred to the Ophthalmology Department due to blurred vision and metamorphopsia in the left eye for the last two weeks. On examination, there was an oval, high, paracentral lesion, superior to the macula with adjacent small hemorrhage. She performed macular spectral domain optic coherence tomography that showed macular edema with neurosensory detachment, fluorescein angiography that revealed a multifocal diffusion with hyperfluorescence and indocyanine green hypofluorescent spots suggesting choroidal ischemia. A diagnosis of neurosensorial retinal detachment that revealed a choroidal infiltration was made. The chemotherapy was continued and, one month after, progressive visual improvement was identified. A systemic disease with atypical retinal findings should alert to diagnose extramedullary disease and a multidisciplinary approach is necessary., O descolamento da retina neurosensorial é um achado raro em doentes com diagnóstico de leucemia mielóide aguda. Descrevemos um caso clínico de uma doente com 25 anos de idade, antecedentes pessoais de leucemia mielóide aguda sob quimioterapia, referenciada ao Departamento de Oftalmologia por visão turva e metamorfopsias no olho esquerdo com duas semanas de evolução. Ao exame oftalmológico, o olho direito não apresentou alterações e no olho esquerdo observou-se uma lesão paracentral, elevada, oval, superior à macula com uma pequena hemorragia adjacente. Foram realizados exames complementares de diagnóstico, dos quais se destacam: tomografia de coerência óptica macular com evidência de um descolamento neurosensorial e edema macular, angiografia fluoresceínica que mostrou uma hiperfluorescência com difusão multifocal e angiografia com verde indocianina que demonstrou uma área hipofluorescente sugerindo isquémia coroideia. Foi realizado o diagnóstico de descolamento neurosensorial por infiltração coroideia subjacente. A doente manteve a quimioterapia, após um mês, o descolamento neurosensorial desapareceu e a acuidade visual foi de 20/20. Este caso evidencia uma apresentação ocular rara de uma doença sistémica e demonstra a importância de uma abordagem multidisciplinar.
- Published
- 2020
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21. Lack of spontaneous venous pulsation: possible risk indicator in normal tension glaucoma?
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Abegão Pinto, Luís, Vandewalle, Evelien, De Clerck, Eline, Marques-Neves, Carlos, and Stalmans, Ingeborg
- Published
- 2013
- Full Text
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22. Endothelin-1 effects on spontaneous oscillations in choroidal arterioles
- Author
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Delgado, Esmeralda, Marques-Neves, Carlos, Rocha, Isabel, Sales-Luís, José, and Silva-Carvalho, Luis
- Published
- 2010
- Full Text
- View/download PDF
23. Intrinsic vasomotricity and adrenergic effects in a model of isolated rabbit eye
- Author
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Delgado, Esmeralda, Marques-Neves, Carlos, Rocha, Isabel, Sales-Luís, José, and Silva-Carvalho, Luis
- Published
- 2009
- Full Text
- View/download PDF
24. Guidelines for the Management of Center-Involving Diabetic Macular Edema: Treatment Options and Patient Monitorization.
- Author
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Figueira, João, Henriques, José, Carneiro, Ângela, Marques-Neves, Carlos, Flores, Rita, Castro-Sousa, João Paulo, Meireles, Angelina, Gomes, Nuno, Nascimento, João, Amaro, Miguel, and Silva, Rufino
- Subjects
MACULAR edema ,DIABETIC retinopathy ,ENDOTHELIAL growth factors ,INTRAVITREAL injections ,VISION ,METABOLIC regulation - Abstract
Diabetic macular edema (DME) is the main cause of visual impairment associated with diabetic retinopathy (DR) and macular laser, during approximately three decades, and was the single treatment option. More recently, intravitreous injections of anti-angiogenics and corticosteroids modified the treatment paradigm associated with significant vision improvements. Nevertheless, not all patients respond satisfactorily to anti-VEGF or corticosteroid injections, so an adequate treatment choice and a prompt switch in therapeutic class is recommended. Several algorithms and guidelines have been proposed for treating center involving DME to improve patients' vision and quality of life. However, in Portugal, such guidelines are lacking. The present review aimed to provide guidelines for the treatment options and patient monitorization in the management of center-involving DME. We recommend anti-vascular endothelial growth factor (VEGF) as first-line therapy after a clinical evaluation accompanied by a rigorous metabolic control. Depending on the response obtained after 3– 6 monthly intravitreal injections we suggest switching outside the class in case of a non-responder, maintaining the anti-VEGF-therapy in responders to anti-angiogenics. The treatment regimen for Dexamethasone intravitreal implant (DEXii) should be pro-re-nata with bi-monthly or quarterly monitoring visits (with a scheduled visit at 6– 8 weeks after DEXii for intraocular pressure control). If a patient does not respond to DEXii, switch again to anti-VEGF therapy, combine therapies, or re-evaluate patients diagnose. There is a resilient need to understand the disease, its treatments, regimens available, and convenience for all involved to propose an adequate algorithm for the treatment of diabetic retinopathy (DR) and DME in an individualized regimen. Further understanding of the contributing factors to the development and progression of DR should bring new drug discoveries for more effective and better-tolerated treatments. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
25. A Non-Infectious Uveitis Multidisciplinary Clinic in a Tertiary Referral Center: Clinical Impact and Added Value.
- Author
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Leal, Inês, Romão, Vasco C, Mano, Sofia, Khmelinskii, Nikita, Campanilho-Marques, Raquel, Ponte, Cristina, Macieira, Carla, Oliveira-Ramos, Filipa, Vieira-Sousa, Elsa, Rosa, Carlos Miranda, Rodrigues, Walter, Pinto, Luís Abegão, Marques-Neves, Carlos, and Fonseca, João Eurico
- Subjects
UVEITIS ,OPHTHALMOLOGISTS ,RHEUMATOLOGISTS ,IRIDOCYCLITIS ,BEST practices ,MEDICAL care - Abstract
Non-infectious uveitis (NIU) is a group of sight-threatening diseases that generates significant burden for the healthcare systems due to its adverse outcomes, irreversible structural complications in the eye with loss of visual function, limited clinical expertise and low-grade evidence for best practice. The usefulness of multidisciplinary care, specifically close collaboration between Rheumatologists and Ophthalmologists in NIU, has been emphasized in the literature. In this paper, the assessment tools and protocols used in our clinic are depicted and an overview of our activity with a brief description of the patients included in our registry, between 2018 and 2020 is provided. The cohort of 290 patients assessed in our NIU clinic, their demographics, sources of referral, details about immunosuppression treatment, and internal and external collaborations is described. This experience-based manuscript aims to describe the general functioning of our multidisciplinary NIU clinic, highlighting the benefits and drawbacks of multidisciplinary team management in patients with NIU, ultimately initiating a dialogue on what an NIU clinic should be and providing information for newly NIU clinics start-up. In conclusion, establishing a standardized and multidisciplinary clinic in NIU allows to systematically observe and follow-up this infrequent disease at a tertiary hospital level, thus improving quality of care delivery and research avenues. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
26. O-008. Influence of Hypertension in Pregnancy on Hematological Phenotypes of Preterm Infants with Gestational Age Inferior to 32 Weeks
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Martins, Mariza, Carolina Santos, Ana, Marques-Neves, Carlos, Guimarães, Hercília, and Bicho, Manuel
- Published
- 2021
- Full Text
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27. Tubulointerstitial nephritis and uveitis (TINU) syndrome: a review.
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Amaro, David, Carreño, Ester, Steeples, Laura R., Oliveira-Ramos, Filipa, Marques-Neves, Carlos, and Leal, Inês
- Abstract
Inflammation of renal interstitium and uveal tissue establishes the two components of tubulointerstitial nephritis and uveitis (TINU) syndrome. Although believed to occur more frequently in young females, a broad spectrum of patients can be affected. Both renal and eye disease can be asymptomatic and may not manifest simultaneously, having independent progressions. Renal disease manifests as acute kidney injury and may cause permanent renal impairment. Eye inflammation can manifest in different anatomical forms, most commonly as bilateral anterior uveitis and may progress to a chronic course. TINU syndrome accounts for approximately 1%-2% of uveitis in tertiary referral centres. A literature review covering the clinical features, pathogenesis, diagnosis and treatment is presented. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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28. The Outcomes of Switching from Short- to Long-Term Intravitreal Corticosteroid Implant Therapy in Patients with Diabetic Macular Edema.
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Vaz-Pereira, Sara, Castro-de-Sousa, João Paulo, Martins, David, Prates Canelas, Joaquim, Reis, Pedro, Sampaio, António, Urbano, Helena, Kaku, Paulo, Nascimento, João, and Marques-Neves, Carlos
- Subjects
RETINAL vein occlusion ,PEOPLE with diabetes ,ENDOTHELIAL growth factors ,EDEMA ,LABELS ,INTRAOCULAR pressure - Abstract
Background: First-line treatment for diabetic macular edema (DME) is usually with antivascular endothelial growth factor agents, followed by intravitreal corticosteroids as a second-line treatment option. Long-term corticosteroids may offer quality of life and effectiveness benefits over short-term implants. Objectives: To evaluate outcomes of patients with persistent or recurrent DME who switched from a short-term (dexamethasone) to a long-term (fluocinolone acetonide, FAc) corticosteroid intravitreal implant in a real-world setting. Methods: This is a retrospective study in 9 Portuguese centers. An FAc intravitreal implant was administered according to product labeling. Effectiveness outcomes were mean change in visual acuity (VA; ETDRS letters), central retinal thickness (CRT; µm), and macular volume (MV; mm
3 ). The safety outcome was mean change in intraocular pressure (IOP; mm Hg). All were analyzed at months 1 and 3, and then quarterly until month 24 after implantation. Results: Forty-four eyes from 36 patients were analyzed. Mean duration of DME was 3.3 ± 1.9 years, and mean follow-up was 8 months. From baseline following FAc implantation, VA increased significantly at months 1 and 6 (mean +6.82 and +13.02 letters, respectively; p = 0.005), and last observation carried forward (LOCF; mean +8.3 letters; p = 0.002). CRT improved significantly at months 1 and 6 (mean –71.81 and –170.77 µm, respectively; p = 0.001), and LOCF (mean –121.46 µm; p = 0.001). MV was consistently, but not significantly, decreased from baseline to LOCF (mean –0.69 mm3 ; p = 0.062). The mean change in IOP was –0.25 and +0.88 mm Hg at months 1 and 6, respectively (p = 0.268), and +1.86 mm Hg at LOCF (p = 0.036). Increases were controlled with topical medication in most cases. Conclusions: The FAc intravitreal implant is effective in patients previously treated with short-term corticosteroid implants. Thus, after a suboptimal response to antiangiogenics or a short-term corticosteroid, a single FAc implant may be considered an effective and tolerable treatment that can improve long-term outcomes for patients with sight-threatening DME. [ABSTRACT FROM AUTHOR]- Published
- 2020
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29. Glaucoma beyond the eye: Recent achievements on the systemic dysfunction of this disease
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Marques Neves, Carlos A.M.
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genetic structures ,sense organs ,eye diseases - Abstract
Glaucoma as a systemic disease, Revista Sociedade Portuguesa de Oftalmologia, Vol. 39 N.º 4 (2015)
- Published
- 2016
30. A Protocol to Evaluate Retinal Vascular Response Using Optical Coherence Tomography Angiography.
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Sousa, David Cordeiro, Leal, Inês, Moreira, Susana, do Vale, Sónia, Silva-Herdade, Ana S., Aguiar, Patrício, Dionísio, Patrícia, Abegão Pinto, Luís, Castanho, Miguel A. R. B., and Marques-Neves, Carlos
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OPTICAL coherence tomography ,FLUORESCENCE angiography ,STANDARDIZED tests ,ISOMETRIC exercise ,CARDIOVASCULAR system ,ANGIOGRAPHY - Abstract
Introduction: Optical coherence tomography angiography (OCT-A) is a novel diagnostic tool with increasing applications in ophthalmology clinics that provides non-invasive high-resolution imaging of the retinal microvasculature. Our aim is to report in detail an experimental protocol for analyzing both vasodilatory and vasoconstriction retinal vascular responses with the available OCT-A technology. Methods: A commercial OCT-A device was used (AngioVue
® , Optovue, CA, United States), and all examinations were performed by an experienced technician using the standard protocol for macular examination. Two standardized tests were applied: (i) the hypoxia challenge test (HCT) and (ii) the handgrip test, in order to induce a vasodilatory and vasoconstriction response, respectively. OCT-A was performed at baseline conditions and during the stress test. Macular parafoveal vessel density of the superficial and deep plexuses was assessed from the en face angiograms. Statistical analysis was performed using STATA v14.1 and p < 0.05 was considered for statistical significance. Results: Twenty-four eyes of 24 healthy subjects (10 male) were studied. Mean age was 31.8 ± 8.2 years (range, 18–57 years). Mean parafoveal vessel density in the superficial plexus increased from 54.7 ± 2.6 in baseline conditions to 56.0 ± 2.0 in hypoxia (p < 0.01). Mean parafoveal vessel density in the deep plexuses also increased, from 60.4 ± 2.2 at baseline to 61.5 ± 2.1 during hypoxia (p < 0.01). The OCT-A during the handgrip test revealed a decrease in vessel density in both superficial (55.5 ± 2.6 to 53.7 ± 2.9, p < 0.001) and deep (60.2 ± 1.8 to 56.7 ± 2.8, p < 0.001) parafoveal plexuses. Discussion: In this work, we detail a simple, non-invasive, safe, and non-costly protocol to assess a central nervous system vascular response (i.e., the retinal circulation) using OCT-A technology. A vasodilatory response and a vasoconstriction response were observed in two physiologic conditions—mild hypoxia and isometric exercise, respectively. This protocol constitutes a new way of studying retinal vascular changes that may be applied in health and disease of multiple medical fields. [ABSTRACT FROM AUTHOR]- Published
- 2019
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31. Efficacy and safety of intravitreal anti‐tumour necrosis factor drugs in adults with non‐infectious uveitis – a systematic review.
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Leal, Inês, Sousa, David Cordeiro, Marques‐Neves, Carlos, Duarte, Gonçalo S, Costa, João, Rodrigues, Filipe B, Romão, Vasco C, Fonseca, João Eurico, Carreño, Ester, and Dick, Andrew D
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NECROSIS ,TUMORS ,BIOLOGICALS ,UVEITIS ,DRUGS - Abstract
Anti‐tumour necrosis factor (TNF) drugs have been extensively used in non‐infectious uveitis (NIU), when corticosteroids or conventional immunosuppressive drugs cannot adequately control inflammation or intolerable side‐effects occur. However, systemic anti‐TNF therapies are also associated with a myriad of side‐effects. Therefore, intravitreal administration of anti‐TNF biologics has been employed to minimize patient morbidity and systemic adverse effects, while maintaining therapeutic effectivity. We undertook a systematic review to determine evidence of efficacy and safety of intravitreal administration of anti‐TNF drugs in adults with NIU. We conducted this systematic review according to the PRISMA guidelines. The protocol was registered with PROSPERO (CRD42016041946). We searched CENTRAL, MEDLINE and EMBASE, from inception to April 2017, as well as clinical trial registries and grey literature. The qualitative analysis included all studies of adult patients with a diagnosis of NIU and who received intravitreal anti‐TNF drugs with a 4‐week minimum follow‐up. A total of 4840 references were considered for title and abstract screening. Seven full texts were screened, and five studies were considered for analysis. All studies were open‐label, single‐centre, prospective, non‐randomized, interventional case series with a follow‐up between 4 and 26 weeks, employing either adalimumab in two studies and infliximab in three. Three studies showed a treatment effect of anti‐TNF intravitreal injections, while one study revealed short‐term improvement and one study revealed no efficacy of anti‐TNF intravitreal therapy. None of the studies reported ocular adverse effects but only two studies included electrophysiological assessment in the safety analysis and no study assessed systemic human anti‐drug antibodies. The available evidence is not sufficiently robust to conclude about the clinical effectivity of intravitreal anti‐TNF in NIU and so no recommendation can be made. In conclusion, intravitreal injection of anti‐TNF antibodies remains a possible treatment option to be explored through robust clinical investigation. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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32. Hypoxia challenge test and retinal circulation changes – a study using ocular coherence tomography angiography.
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Sousa, David Cordeiro, Leal, Inês, Abegão Pinto, Luís, Marques‐Neves, Carlos, Dionísio, Patrícia, and Moreira, Susana
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HYPOXEMIA ,RETINAL blood vessels ,VISUAL acuity ,TOMOGRAPHY ,ANALYSIS of variance - Abstract
Abstract: Purpose: Previous studies report that the response of retinal vessels to a decrease in oxygen (hypoxia) is vasodilation, thus increasing blood flow. We aimed to characterize the changes in retinal microvasculature induced by a mild hypoxia stress test in a healthy population, using ocular coherence tomography angiography (OCT‐A) technology. Methods: Interventional repeated‐measures study. The standardized hypoxia challenge test (HCT) was performed to all volunteers, according to the British Thoracic Society protocol. Ocular coherence tomography angiography (OCT‐A) was performed at three time‐points (baseline, during HCT and 30′ posthypoxia). Macular and peripapillary vessel densities were assessed using the built‐in software. To minimize bias, analysis was performed separately in right (OD) and left (OS) eyes. Repeated‐measures anova and mean comparison analysis were used as statistical tests ( stata v13). Results: Studied population included 30 healthy subjects (14 women), with a mean age of 28.8 ± 4.2 [range 22–37] years. Baseline vessel density increased in hypoxic conditions and subsequently decreased to near‐baseline values in posthypoxia conditions. This pattern was observed for both eyes in both parafovea (OD: 55.3 ± 2.3 to 56.7 ± 1.9 to 55.8 ± 1.9, p < 0.05; OS: 56.9 ± 2.1 to 57.9 ± 1.9 to 57.3 ± 1.7, p < 0.05) and peripapillary (OD: 60.5 ± 0.5 to 62.6 ± 0.5 to 60.1 ± 0.4, p < 0.05; OS: 60.4 ± 0.4 to 62.3 ± 0.5 to 60.7 ± 0.4, p < 0.05) areas. Conclusion: To our knowledge, there are no published data specifically addressing mild hypoxia conditions and retinal microvasculature changes, using OCT‐A. This pilot study may pave way to better understand vascular responses in disease setting. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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33. Amlodipine effects on vasomotion in rabbit external
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Delgado, Esmeralda, Marques-Neves, Carlos, Rocha, Isabel, Sales-Luís, José, Silva-Carvalho, Luís, and Repositório da Universidade de Lisboa
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GeneralLiterature_INTRODUCTORYANDSURVEY ,Vasomotion ,ComputingMethodologies_DOCUMENTANDTEXTPROCESSING ,Rabbit external ophthalmic artery ,Amlodipine ,ET-1 - Abstract
© Springer-Verlag 2009, Background In order to understand the role of ocular blood flow in normal and pathological conditions, knowledge of the pharmacological control mechanisms involved in the ocular vascular bed is essential. The present study was designed to investigate the reactivity of the rabbit external ophthalmic artery and its collaterals to amlodipine, in order to answer two questions: (1) What are amlodipine effects upon perfusion pressure and spontaneous oscillations in the in situ perfused rabbit eyes? (2) Can intraarterial amlodipine counteract ET-1 induced vasoconstriction? Methods Rabbit external ophthalmic arteries (n=12) in a head-mounted preparation were cannulated and perfused with warmed tyrode. Vasomotor response curves to intraarterial injections of amlodipine 3 mg/ml followed by phenylephrine 250 μg (group A, n=6) and to amlodipine 3 mg/ml after an intraarterial injection of endothelin-1 (ET-1) 27 μg/ml (group B, n=6) were obtained. For statistical analysis, the paired t-test and Fourier analysis of frequency spectrums of spontaneous oscillations were used. Results Before any drug administration, spontaneous oscillations were observed in the 12 rabbit models. In group A, amlodipine elicited vasodilation and a decrease in frequency and amplitude of the oscillations. In group B, ET-1 induced an increase in vasoconstrictor tone and vasomotion became more evident.With amlodipine after ET-1, we obtained vasodilation and abolition of the vasospasm. Conclusions Our study has two main conclusions: (1) amlodipine, an L-type calcium channel blocker, caused intense vasodilation and decreased both frequency and amplitude of the spontaneous oscillations observed in the rabbit external ophthalmic artery and its collaterals, and (2) when we applied amlodipine in arteries previously contracted by the administration of ET-1, vascular resistance greatly decreased and spontaneous oscillations were abolished. Since ET-1 levels are increased in several ischemic ocular diseases, amlodipine might be beneficial in these patients, allowing a protective action against vasospasm., This work was supported by CIISA (Centro de Investigação Interdisciplinar em Sanidade Animal)
- Published
- 2010
34. Use of Ocular Hypotensive Medications in Portugal: PEM Study: A Cross-sectional Nationwide Analysis.
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Cordeiro Sousa, David, Leal, Inês, Nascimento, Nilton, Marques-Neves, Carlos, Tuulonen, Anja, and Abegão Pinto, Luís
- Published
- 2017
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35. Relationship between intraocular pressure and anterior lamina cribrosa depth: a cross-sectional observational study in a healthy Portuguese population.
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Sousa, David Cordeiro, Leal, Inês, Marques-Neves, Carlos, Pinto, Filomena, and Pinto, Luís Abegão
- Published
- 2017
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36. Intra- and Inter-Rater Agreement of Anterior Lamina Cribrosa Depth Measurements Using Enhanced-Depth Imaging Optical Coherence Tomography.
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Leal, Inês, Sousa, David Cordeiro, Pinto, Filomena, Marques-Neves, Carlos, and Abegão Pinto, Luís
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GLAUCOMA treatment ,OPTICAL coherence tomography ,EYE examination ,ANTERIOR chamber (Eye) ,CELL membranes - Abstract
Purpose: To determine intra- and inter-rater agreement of anterior lamina cribrosa depth (ALCD) manual measurements using enhanced-depth imaging optical coherence tomography (EDI-OCT). Methods: Observational study. EDIOCT of the optic nerve head was performed in healthy subjects. ALCD was defined as the perpendicular distance between the line connecting both edges of Bruch's membrane opening and the anterior border of the lamina cribrosa (LC), at the maximum depth point. Two experienced operators performed manual ALCD measurements of the LC independently, and one of the observers performed the same measurements twice. Intra- and inter-rater agreement was evaluated using intraclass correlation coefficients (ICC) and concordance correlation coefficients (CCC) for the right eye vertical (REV) and horizontal (REH) scans and left eye vertical (LEV) and horizontal (LEH) scans. Results: 120 eyes of 61 subjects, with a mean age of 62.1 ± 15.0 years. The mean REV, REH, LEV and LEH ALCD were 456.2 ± 84.3, 444.5 ± 92.2, 436.7 ± 81.6, 427.6 ± 82.7 µm, respectively. ALCD intra- and interrater ICC and intra- and inter-rater CCC varied between 0.85-0.95, 0.84-0.93, 0.85-0.95 and 0.84-0.93, respectively. Conclusions: ALCD manual intra- and inter-rater measurements with EDI-OCT showed high agreement. EDI-OCT is a reliable tool for ALCD measurement, which can provide potentially useful information for integrated glaucoma management. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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37. Role of the haematological phenotype as a predictive biomarker of retinopathy of prematurity development.
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Martins, Mariza Fevereiro, Santos, Ana Carolina, Teixeira, Filipa, Rosa, Rita, Barros, Pedro, Parreira, Ricardo, Teixeira, Susana, Mota, Mafalda, Monteiro, Madalena, Alfaiate, Mário, Silva, Renato, Breda, Jorge, Guimarães, Hercília, Marques‐Neves, Carlos, and Bicho, Manuel
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RETROLENTAL fibroplasia ,MONOCYTE lymphocyte ratio ,BLOOD cell count ,NEUTROPHIL lymphocyte ratio ,ERYTHROCYTES ,LASER photocoagulation ,HEMATOCRIT - Abstract
Purpose: To evaluate haematological parameters as possible biomarkers of the development of retinopathy of prematurity (ROP). Methods: Multicenter, observational, and prospective study of preterm infants (PTI) from eight NICU, born in Portugal with gestational age (GA) < 32 weeks or birth weight (BW) <1500 g. ROP staging performed according to the International Classification of ROP (ICROP). Sociodemographic, clinical and laboratory data were collected from the first week of life. Complete blood count (CBC) was determined according to standardized methods. According to the maximum stage of ROP, PTI were divided into four groups: without ROP, ROP stage 1 (ROP‐1), ROP stage 2 (ROP‐2) and ROP stage 3 (ROP‐3). Statistical analysis was performed with the SPSS program with significant value for p < 0.05. Results: 455 PTI were included, GA average of 29.5 ± 2.3 weeks, BW average of 1165.7 ± 313.9 grams and 50.5% were female. In this study 37.8% of the PTI developed ROP: 20% had ROP‐1, 9.4% ROP‐2 and 8.4% ROP‐3. 4.6% of PTI received treatment: laser was performed in 12 PTI (2.6%), anti‐VEGF in 7 PTI (1.5%), anti‐VEGF and laser in 1 PTI (0.2%), and anti‐VEGF, laser, and surgery in 1 PTI (0.2%). ROP‐3 was significantly associated with lower GA (p = <0.001), BW (p < 0.001), erythrocytes (p < 0.001), haemoglobin (p < 0.001), haematocrit (p < 0.001), lymphocyte (p = 0.047) and lymphocyte to monocyte ratio (LMR) (p = 0.018) compared with the other groups. Neutrophils (p = 0.039) and neutrophil to lymphocyte ratio (NLR) (p < 0.001) were higher in ROP‐3. For PTI who did not develop ROP were observed, in relation with the other groups: higher mean corpuscular haemoglobin concentration (MCHC) (p < 0.001), platelets (p = 0.029) and plateletcrit (PCT) (p = 0.007) and lower red cell distribution width (RDW) (p = 0.015) and erythroblast (p < 0.001). Conclusions: This study shows that the increase in neutrophils, NLR, and RDW and the decrease in lymphocytes, LMR, erythrocytes, and platelets may constitute early and low‐cost predictive biomarkers of ROP development. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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38. Retropupillary iris claw intraocular lens implantation in aphakia for dislocated intraocular lens.
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Faria, Mun Yueh, Ferreira, Nuno Pinto, Pinto, Joana Medeiros, Sousa, David Cordeiro, Leal, Ines, Neto, Eliana, and Marques-Neves, Carlos
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INTRAOCULAR lenses ,APHAKIA ,VITRECTOMY ,ENDOTHELIAL cells ,EXFOLIATION syndrome - Abstract
Background: Nowadays, dislocated intraocular lenses (IOLs) and inadequate capsular support are becoming a challenge for every ophthalmic surgeon. Explantation of dislocated IOL and iris claw IOL (ICIOL) are the techniques that have been used in our ophthalmic department. The aim of this study is to report our technique for retropupillar ICIOL. Methods: This study is a retrospective case series. A total of 105 eyes with dislocated IOL from the patients at the Department of Ophthalmology in Santa Maria Hospital, a tertiary reference hospital in Lisbon, Portugal, from January 2012 until January 2016, had been analyzed. Of these 105 eyes, 66 eyes had dislocated one-piece IOL and 39 eyes had dislocated three-piece IOL. The latter underwent iris suture of the same IOL and were excluded from this study. The remaining 66 eyes with dislocated one-piece IOL underwent pars plana vitrectomy, that is, explantation of dislocated IOL through corneal incision and an implantation of retropupillary ICIOL. Operative data and postoperative outcomes included best corrected visual acuity, IOL position, intraocular pressure, pigment dispersion, clinical signs of endothelial cell loss, and anterior chamber depth. Results: The mean follow-up was 23 months (range: 6-48 months). The mean preoperative best corrected visual acuity was 1.260±0.771 logMAR, and postoperative best corrected visual acuity was 0.352±0.400 logMAR units. Mean vision gain was 0.909 logMar units. The patients had the following complications: 1) retinal detachment was found in one patient, 2) corneal edema was found in three patients, 3) high intraocular pressure was observed in twelve patients, 4) subluxation of the IOL was observed in one patient, and 5) macular edema was found in three eyes. Conclusion: The results demonstrate that retropupillary ICIOL is an easy and effective method for the correction of aphakia in patients not receiving capsule support. The safety of this procedure must be interpreted in the context of a surgery usually indicated in complicated cases. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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39. Review on Dynamic Contour Tonometry and Ocular Pulse Amplitude.
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Willekens, Koen, Rocha, Rita, Van Keer, Karel, Vandewalle, Evelien, abegão Pinto, Luís, Stalmans, Ingeborg, and Marques-Neves, Carlos
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INTRAOCULAR pressure ,TONOMETERS ,GLAUCOMA treatment ,BODY fluid pressure measurement ,OPHTHALMOLOGY - Abstract
Intraocular pressure (IOP) measurement is the cornerstone of the management of glaucoma patients. The gold standard for assessing IOP is Goldmann applanation tonometry (GAT). Recently, the dynamic contour tonometer (DCT) has become available. While both devices provide reliable IOP measurements, the results are not interchangeable. DCT has the advantage of measuring an additional parameter: ocular pulse amplitude (OPA). OPA is defined as the difference between systolic and diastolic IOP and represents the pulsatile wave front produced by the varying amount of blood in the eye during the cardiac cycle. It has been shown to vary with ocular structural parameters, such as axial length, corneal thickness, and ocular rigidity, as well as with systemic variables like heart rate, blood pressure, and left ventricular ejection fraction. Although the existence of some of these associations is still controversial, the clinical relevance of OPA has been consistently suggested, especially in glaucoma. Further research on this intriguing parameter could not only provide insight into glaucoma pathophysiology but also help integrate this variable into clinical practice. © 2015 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]
- Published
- 2016
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40. Cataract Surgery and Intraocular Pressure.
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Melancia, Diana, abegão Pinto, Luis, and Marques-Neves, Carlos
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CATARACT surgery ,INTRAOCULAR pressure ,GLAUCOMA ,PHACOEMULSIFICATION ,TRABECULECTOMY - Abstract
Cataract surgery is one of the most performed surgeries in the developed world. In addition to its significant impact on visual acuity, phacoemulsification has been hailed as a potential intraocular pressure (IOP)-lowering procedure. While current evidence suggests an overall significant and sustained decrease in IOP to exist after cataract surgery, the specific ocular characteristics that could help predict which patients are likely to benefit from this IOP-lowering effect remain unclear. This definition is important in glaucoma patients if this surgery is to be used in the treatment for this disease. Our review aims to summarize the literature on the subject, depicting possible mechanisms behind this IOP decrease, which type of patients are more likely to benefit from this surgery for IOP-lowering purposes and ultimately help optimizing disease management for the increasing number of patients with concomitant glaucoma and cataract. © 2015 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]
- Published
- 2015
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41. XEN Gel Stent Internal Ostium Occlusion: Ab-Interno Revision.
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Ferreira, Nuno Pinto, Pinto, Luis Abegão, and Marques-Neves, Carlos
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- 2017
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42. Modulation of Vasomotive Activity in Rabbit External Ophthalmic Artery by Neuropeptides.
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Costa Delgado, Esmeralda Sofia, Marques-Neves, Carlos, Sousa Rocha, Maria Isabel, Pacheco Sales-Luís, José Paulo, and Filipe Silva-Carvalho, Luís
- Published
- 2012
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43. Vision‐related quality of life in spondyloarthritis patients with history of acute anterior uveitis under treatment with golimumab: preliminary results of the GO‐VISION observational study.
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Leal, Ines, Jose, Patricia, Barão, Rafael, Mano, Sofia, Melo, Ana Teresa, Dourado, Eduardo, Tenazinha, Catarina, Vaz, Cláudia, Ferreira, Joana Fonseca, Dinis, Sara, Santos, Filipe Cunha, Fernandes, Henrique, Khmelinskii, Nikita, Marques‐Neves, Carlos, de Sousa, Elsa Vieira, and Fonseca, João Eurico
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IRIDOCYCLITIS ,SPONDYLOARTHROPATHIES ,GOLIMUMAB ,QUALITY of life ,SCIENTIFIC observation ,PATIENT safety - Abstract
Purpose: Acute anterior uveitis (AAU) is one of the most common extra‐articular manifestations of spondyloarthritis (SpA), causing significant burden in quality of life (QoL). Golimumab (GLM) is a tumor necrosis factor‐inhibitor proven to be effective and safe in SpA. The GO‐EASY Study provided evidence that GLM decreases the AAU occurrence rate in SpA. Our aim is to study the impact of GLM in the change of vision‐related (VR) QoL in subjects with SpA and past or current AAU. Methods: Ongoing prospective multicentre observational study (including 8 centres in Portugal) of SpA patients with history of AAU treated with GLM followed‐up for 12 months. We intend to recruit in total 30 patients and we report herein the 6 months outcomes for the first 9 patients enrolled. The occurrence of AAU was assessed in the 2 years before GLM treatment was started and the first 6 months of follow‐up and calculated for the period at risk for a new AAU. VR QoL was assessed with the self‐administered National Eye Institute Visual Functioning Questionnaire‐25 (NEI VFQ‐25). Adverse events were noted. Results: Nine patients (66.7% female, 100% TNFi‐naive, mean age 46.1 ± 14.4 years (range 22–65)) have completed 6 months of follow‐up. Three patients (33%) were also under oral methotrexate. The mean number of AAU flares in the 2 years preceding the start of GLM was 2.2 ± 1.3 (1–4). During the first 6 months of GLM treatment, the AAU incidence rate was reduced from 1.54 to 0.11 per 100 patient‐years (incidence ratio‐ratio 13.46, 95% CI 2.15–558.00; p < 0.01). At baseline and at 24 weeks after GLM onset, the mean overall index NEI VFQ‐25 total score was 70.2 and 83.2, respectively; improvement in the NEI VFQ‐25 total score was +13 ± 18.2. No significant or new adverse events occurred. Conclusions: Preliminary data from the GO‐VISION study suggest that GLM is safe and effective in patients with SpA and history of AAU, being able to reduce the AAU occurrence rate and potentially increasing VR QoL. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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44. Prescription pattern of ocular hypotensive drugs in Portugal and its comparison with the European guidelines – PEM Study.
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Pimenta, Gonçalo, Sousa, David Cordeiro, Leal, Inês, Marques‐Neves, Carlos, and Abegão Pinto, Luís
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PRESCRIPTION writing ,DRUGS ,PATIENT compliance ,GUIDELINES - Published
- 2019
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45. Trabeculectomy with mitomycin C alone or with mitomycin C plus intracameral bevacizumab—A comparative study.
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José, Patrícia, Teixeira, Filipa, Sousa, David, Esteves Marques, Raquel, Diogo Barata, André, Marques‐Neves, Carlos, Pedro Silva, José, and Abegão Pinto, Luis
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TRABECULECTOMY ,C++ ,MITOMYCIN C ,BEVACIZUMAB ,POSTOPERATIVE period ,INTRAOCULAR pressure - Abstract
Purpose: To compare the long‐term outcomes of trabeculectomy using mitomycin C (MMC) alone versus MMC plus intracameral bevacizumab. Methods: Retrospective, comparative study (#ISRCTN93098069). Patients' charts from two centers were reviewed for data between October 2015 and March 2019. Minimum follow‐up of 12 months was required. The main efficacy outcome was intraocular pressure (IOP) lowering at 12 and 24 months, with surgical success defined as IOP ≤18 mmHg and >5 mmHg with at least 30% reduction from baseline. Absolute success was achieved if no IOP‐lowering medication was needed and a qualified success considered otherwise. Safety outcomes were also analyzed. Results: A total of 111eyes underwent trabeculectomy with MMC, 52 of them combined with intracameral bevacizumab. 78% were followed for at least two years. Baseline IOP was 24.5 ± 8.9 mmHg and 23.8 ± 8.3 mmHg for the MMC and the MMC+bevacizumab groups, respectively (p = 0.97). During the early post‐operative period (at 3 months), mean IOP was lower in the MMC+bevacizumab group (9.3 ± 2.3 mmHg versus 11.1 ± 5.5 mmHg, p = 0.03). At 24‐month visit, IOP was significantly reduced (MMC group: 10.6 ± 3.4 mmHg; MMC+bevacizumab group: 10.9 ± 4.1 mmHg, p < 0.01) with no difference between groups (p = 0.61). Absolute success was higher in the MMC+bevacizumab group at 12 months (86% versus 75%, p = 0.16) and at 24 months (83% versus 67%, p = 0.14), with the need for IOP‐lowering re‐interventions (needlings) being lower in this group (2% versus 17%, p = 0.01). Almost all patients (98%) of the MMC+bevacizumab group were drop‐free at 12 months and nearly half (44%) had an IOP in the single‐digit range (≤ 9 mmHg) at 24 months. Complication rates were low and similar between groups, with no systemic adverse events. Conclusions: Adding perioperative intracameral bevacizumab to the standard of care use of MMC in trabeculectomy seems to allow for sustained low IOP outcomes. Furthermore, it seems to decrease the need for additional interventions during the early post‐operative period. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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46. Complete ILM Peeling Versus Inverted Flap Technique for Macular Hole Surgery: A Meta-Analysis.
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Marques, Raquel Esteves, Sousa, David Cordeiro, Leal, Inês, Faria, Mun Yueh, and Marques-Neves, Carlos
- Published
- 2020
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47. Pupillary changes after laser peripheral iridotomy.
- Author
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Pinto Ferreira, Nuno, Sousa, David Cordeiro, Mano, Sofia, Marques‐Neves, Carlos, Abegão Pinto, Luis, and Canastro, Mário
- Subjects
ANGLE-closure glaucoma ,IRIS surgery ,PUPILLOMETERS ,INTRAOCULAR pressure ,PUPILLOMETRY - Abstract
The article discusses a treatment laser peripheral iridotomy (LPI) for the treatment of pupillary block and iris plateau and its impact on pupillary changes. It presents the observation of patients under scotopic conditions and infrared automated pupillometer. Intraocular pressure, average pupil diameter and average pupil area are measured and results are obtained.
- Published
- 2018
- Full Text
- View/download PDF
48. Spontaneous retrobulbar haemorrhage in idiopathic thrombocytopenic purpura.
- Author
-
de Sousa, Filipa Caiado, Medeiros, Joana Pinto, Marques, Raquel, and Marques-Neves, Carlos
- Published
- 2017
- Full Text
- View/download PDF
49. Pupilloplasty to prevent dexamethasone intravitreal implant migration to anterior chamber.
- Author
-
Pinto, Joana Medeiros and Marques-Neves, Carlos
- Published
- 2017
- Full Text
- View/download PDF
50. Comment on: Optical Coherence Tomography Angiography Features in Post-COVID-19 Pneumonia Patients: A Pilot Study.
- Author
-
Sousa DC, Leal I, Abegão Pinto L, and Marques-Neves C
- Subjects
- Fluorescein Angiography, Humans, Pilot Projects, SARS-CoV-2, COVID-19, Tomography, Optical Coherence
- Published
- 2022
- Full Text
- View/download PDF
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