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1.
Clin Infect Dis ; 78(3): 663-666, 2024 03 20.
Artigo em Inglês | MEDLINE | ID: mdl-38330299

RESUMO

In this retrospective/prospective study, we assessed the role of fundoscopy in 711 episodes with suspected infective endocarditis (IE); 238 (33%) had IE. Ocular embolic events (retinal emboli or chorioretinitis/endophthalmitis) and Roth spots were found in 37 (5%) and 34 (5%) episodes, respectively, but had no impact on IE diagnosis.


Assuntos
Embolia , Endocardite Bacteriana , Endocardite , Humanos , Estudos de Coortes , Estudos Retrospectivos , Estudos Prospectivos , Endocardite/diagnóstico , Endocardite Bacteriana/diagnóstico por imagem
2.
Ocul Immunol Inflamm ; : 1-6, 2023 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-37797183

RESUMO

PURPOSE: To evaluate the efficacy of systemic tumor necrosis factor-alpha inhibitors (TNFi) in the treatment of non-infectious uveitis (NIU). METHODS: This Swiss multicenter retrospective cohort study included patients with NIU requiring TNFi during the period from 2001 to 2018. Risk factors for the occurrence of new complications were identified using Cox regression analysis and hazard ratios (HR). RESULTS: Seventy-one patients (126 eyes; mean age 40.6 ± 14.4 years, mean duration of uveitis 46.0 ± 61.8 months) were followed for 40.2 ± 17.3 months after addition of TNFi. Under TNFi, visual acuity improved from 0.2 ± 0.3 to 0.1 ± 0.3 logMAR (p < 0.001). The portion of patients under systemic corticosteroids decreased from 81.7% to 25.4% (p < 0.001), while that for conventional synthetic disease-modifying anti-rheumatic drugs insignificantly decreased from 63.4% to 50.7% (p > 0.05). In 80.2% of eyes, complications were present at baseline with epiretinal gliosis (39.7%), cataract (41.3%) and macular edema (ME; 27.8%) being the most common. New complications under TNFi were encountered in 49.2% of eyes, also including recurrence (5 eyes) or new onset of ME (14 eyes). The need for switching of TNFi was associated with further complications (HR 3.78, p = 0.012). CONCLUSION: Although the efficacy and tolerability of TNFi in a real-life setting are favorable, treatment is often initiated late, i.e., after many eyes have already developed complications. Even with TNFi, new complications, particularly ME, cannot be completely avoided. Further research is needed to assess the impact of earlier initiation of TNFi therapy.

3.
Ocul Immunol Inflamm ; 31(5): 981-988, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35588311

RESUMO

PURPOSE: To assess the efficacy of tumor necrosis factor-alpha inhibitors (TNFi) on uveitic macular edema (ME) unresponsive to conventional synthetic disease-modifying anti-rheumatic drugs (csDMARDs). METHODS: This multicenter retrospective study included patients with uveitic ME persisting despite csDMARDs. The effect of an additional TNFi on central retinal thickness (CRT), best corrected visual acuity (BCVA) and corticosteroid need was evaluated. RESULTS: Thirty-five eyes (26 patients, mean age 42.9 ± 15.2 years) were included. CRT decreased from 425 ± 137 µm to 294 ± 66 µm (p < .001) and 280 ± 48 µm (p < .001) at 1 and 4 years of follow-up, respectively. BCVA improved from 0.28 ± 0.22 to 0.21 ± 0.48 (1 year, p = .013) and 0.08 ± 0.13 logMAR (4 years, p = .002). The proportion of patients requiring systemic corticosteroids decreased from 88.5% to 34.8% (1 year) and 15.4% (4 years). CONCLUSION: The addition of a TNFi resulted in an improvement of CRT and BCVA for up to 4 years in uveitic ME but rescue treatments were needed for some patients.


Assuntos
Edema Macular , Uveíte , Humanos , Adulto , Pessoa de Meia-Idade , Edema Macular/diagnóstico , Edema Macular/tratamento farmacológico , Edema Macular/etiologia , Fator de Necrose Tumoral alfa/uso terapêutico , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Estudos Retrospectivos , Suíça , Resultado do Tratamento , Seguimentos , Injeções Intravítreas , Uveíte/complicações , Uveíte/diagnóstico , Uveíte/tratamento farmacológico , Tomografia de Coerência Óptica
4.
Klin Monbl Augenheilkd ; 239(4): 518-522, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35472796

RESUMO

BACKGROUND: Susac syndrome (SS) is an autoimmune disorder that involves the eyes, the brain, and the ears. It is a rare cause of recurrent branch retinal artery occlusion. The purpose of this study was to report cases of SS, highlighting the clinical presentations, therapeutic options, and their outcome. PATIENTS AND METHODS: Retrospective case series of patients seen at our institution for SS between 2005 and 2020. Demographics, clinical characteristics, treatment, and outcome were studied. RESULTS: Four patients (3 females, mean age 29 years old) were included in the study. According to the recently revised diagnostic criteria, three patients had definite and one patient had probable SS (distinctive ophthalmological and brain involvement without ear involvement). Initial visual acuity (VA) was normal in all eyes, but two patients had unilateral visual field impairment. Gass plaques (defined as yellow-white plaques found in the arteriolar wall away from arterial bifurcations) were observed on fundus examination in all patients. Fluorescein angiography revealed arteriolar wall hyperfluorescence and branch retinal arterial occlusions (BRAOs) in the absence of other signs of intraocular inflammation in all patients. Initial treatment consisted of a high-dose corticosteroid (intravenous or oral) with additional immunosuppressive therapy (azathioprine, intravenous immunoglobulins, mycophenolate mofetil, and/or cyclophosphamide). Residual symptoms were present in all patients and included scotoma (n = 2) and hearing loss (n = 3). CONCLUSION: SS is a rare disease with characteristic ophthalmological manifestation. The majority of patients present a crude form of the triad, and retinal findings may be the first initial manifestation. Ophthalmologists should consider the possibility of an SS in all young patients presenting with BRAOs.


Assuntos
Oclusão da Artéria Retiniana , Síndrome de Susac , Adulto , Feminino , Angiofluoresceinografia , Humanos , Imageamento por Ressonância Magnética , Masculino , Oclusão da Artéria Retiniana/diagnóstico , Oclusão da Artéria Retiniana/tratamento farmacológico , Estudos Retrospectivos , Síndrome de Susac/diagnóstico , Síndrome de Susac/tratamento farmacológico , Transtornos da Visão/diagnóstico , Transtornos da Visão/etiologia
5.
Ocul Immunol Inflamm ; 30(6): 1489-1494, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33974484

RESUMO

PURPOSE: Uveitis can be associated with meningitis (uveomeningitis) and the inflammation shared with the central nervous system. We aimed to describe the characteristics and outcome of uveomeningitis. METHODS: We retrospectively analyzed 110 consecutive adult patients with uveomeningitis. RESULTS: The main causes of uveomeningitis were Vogt-Koyanagi-Harada (31%), syphilis (16%), sarcoidosis (12%), Behçet's disease (7%), and multiple sclerosis (5%). Sixteen percent of uveomeningitis remained of undetermined origin. Compared to etiology-matched uveitis without meningitis, patients with uveomeningitis were younger, had more frequent neurological manifestations, and had more frequent abnormal cerebral magnetic resonance imaging findings. In contrast, no ocular feature upon examination was significantly associated with the presence of meningitis. Patients with uveomeningitis were more frequently treated with immunosuppressants but uveitis relapse and systemic complications did not differ between groups. CONCLUSION: Uveomeningitis is associated with a limited spectrum of diseases. Meningitis does not seem to impact ocular and extraocular outcomes. Therefore, lumbar puncture should be performed on an individual basis during the diagnostic workup of uveitis.


Assuntos
Síndrome de Behçet , Meningite , Uveíte , Síndrome Uveomeningoencefálica , Adulto , Humanos , Síndrome Uveomeningoencefálica/diagnóstico , Estudos Retrospectivos , Uveíte/tratamento farmacológico , Síndrome de Behçet/complicações
6.
Artigo em Inglês | MEDLINE | ID: mdl-38983554

RESUMO

Acute retinal necrosis is a rare but potentially devastating disease. Even in the era of modern medicine, retinal detachment is a frequent complication leading to vison loss, as well as phthisis bulbi. Whereas IV acyclovir still remains the standard of care, high doses of valacyclovir with/without additional intravitreal injections of foscarnet have been used. In an attempt to reduce the retinal detachment rate, prophylactic laser treatment and early vitrectomy have been proposed. In this article, we aim to review current diagnostic and treatment modalities.

7.
BMC Ophthalmol ; 21(1): 315, 2021 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-34454464

RESUMO

BACKGROUND: Tick-borne encephalitis (TBE) is an infectious disease of the central nervous system caused by the TBE virus (TBEV), which is usually transmitted by a tick-bite, with increasing incidence in northeastern Europe and eastern Asia during the past decade. Ocular involvement has not been described in the literature to date. CASE PRESENTATION: A 58-year-old patient presented to the emergency department with occipital headaches and poor balance for 5 days. He reported a tick-bite 6 weeks before without erythema migrans followed by a flu-like syndrome. Serological testing was negative for Borreliosis and TBEV. At presentation, he was febrile with neck stiffness and signs of ataxia. Three days later, he presented unilateral visual loss in his right eye. Examination revealed non granulomatous anterior uveitis, vitreous inflammation, and retinal haemorrhages at the posterior pole without macular oedema or papillitis. Polymerase chain reaction (PCR) of the cerebrospinal fluid returned negative for all Herpes family viruses. No clinical evidence of other infection nor malignancy was identified. A seroconversion of the TBEV- immunoglobulin titres was observed 2 weeks later while the serum antibodies for Borrelia were still not detected. Magnetic resonance imaging was unremarkable. We concluded to the diagnosis of TBE-related uveitis. Under supportive treatment, there was complete resolution of the neurological symptoms and the intraocular inflammation without sequelae within the following weeks. CONCLUSIONS: We describe a new association of TBEV with uveitis. In view of the growing number of TBE cases and the potential severity of the disease we aim at heightening awareness to achieve prompt recognition, prevention, and treatment.


Assuntos
Vírus da Encefalite Transmitidos por Carrapatos , Encefalite Transmitida por Carrapatos , Uveíte , Encefalite Transmitida por Carrapatos/complicações , Encefalite Transmitida por Carrapatos/diagnóstico , Europa (Continente) , Humanos , Inflamação , Masculino , Pessoa de Meia-Idade
8.
Klin Monbl Augenheilkd ; 238(4): 469-473, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33853188

RESUMO

PURPOSE: To investigate demographics and causes of pediatric uveitis in a Swiss tertiary reference center over a 20-year period. MATERIALS AND METHODS: Retrospective cohort study on patients with uveitis aged less than 16 years seen at Jules-Gonin Eye Hospital between 1 January 2000 and 31 December 2019. RESULTS: Out of 2846 patients with uveitis seen in the Jules-Gonin Eye Hospital Ocular Immune-Infectiology Department, 317 (11.1%) were under 16 years of age and were included in this study. Median age at onset of the uveitis was 8.9 years (range 0 - 16). Anterior uveitis was the most frequent presentation (45.1%) followed by posterior uveitis in 26.2%, intermediate uveitis in 23.3%, and panuveitis in 5.4%. The inflammation was most frequently bilateral and non-granulomatous. A systemic inflammatory disease was found in 34% of the cases and an infectious cause in 24%. CONCLUSION: The repartition of the location of the uveitis was similar to previous reports from Western countries. Uveitis in juvenile idiopathic arthritis is the most frequent etiology related to a systemic disease in children. An infectious cause was found in 24% of our patients, which is a greater proportion than in adult cohorts.


Assuntos
Uveíte Anterior , Uveíte Posterior , Uveíte , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Humanos , Lactente , Recém-Nascido , Estudos Retrospectivos , Centros de Atenção Terciária , Uveíte/diagnóstico , Uveíte/epidemiologia
9.
Rev Med Suisse ; 17(723): 206-208, 2021 Jan 27.
Artigo em Francês | MEDLINE | ID: mdl-33507662

RESUMO

The most frequent ocular manifestation of the SARS-CoV-2 is a conjunctivitis. It is found in 1-3% of patients and has unusually a benign course. In those patients but also in patients without ocular involvement, the virus can be detected by PCR in conjunctival swabs or in the tears. Whereas the presence of the virus in the conjunctiva is proven, its transmission through the conjunctiva is still discussed. Despite the poor level of evidence, the use of protective eyewear is recommended. Ocular thromboembolic events have been described in Covid-19. They can be found in the context of the Covid-related coagulopathy. A multidisciplinary approach should be provided in these cases. In the ICU, severe ocular complications might be indirectly related to Covid-19 in ventilated patients.


La manifestation oculaire la plus fréquente du SARS-CoV-2 est une conjonctivite. Elle est retrouvée dans 1 à 3 % des cas et est généralement d'évolution bénigne. Dans le cas de conjonctivite mais aussi chez les patients asymptomatiques au niveau oculaire, le virus peut être retrouvé par PCR dans les larmes/le frottis conjonctival. Une transmission par la conjonctive reste toutefois incertaine. Par mesure de précaution, le port de lunettes de protection est recommandé. Les atteintes ophtalmologiques sévères de type thromboembolique peuvent être retrouvées dans le cadre de la coagulopathie liée au Covid-19. Dans ces cas, une prise en charge pluridisciplinaire est nécessaire. Des événements oculaires graves peuvent également être indirectement liés au Covid-19 chez les patients sous ventilation aux soins intensifs.


Assuntos
COVID-19 , Túnica Conjuntiva , Humanos , SARS-CoV-2 , Lágrimas
10.
Eye (Lond) ; 35(10): 2733-2739, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33235345

RESUMO

BACKGROUND/OBJECTIVES: To assess the ratio of scarred/active areas of fundus lesions in patients with presumed ocular toxoplasmosis. SUBJECTS/METHODS: Retrospective monocentric study of patients with presumed ocular toxoplasmosis seen between May 2004 and February 2018. Patients with a positive anti-Toxoplasma serology presenting characteristic fundus lesions. Cases with images of both baseline active and scarred lesions of the fundus were included. The borders of each active or scarred lesion were delineated on colour photographs by two independent observers and the area of the lesions was calculated using Digimizer 4.2.2 (MedCalc Software, Ostend, Belgium). The interobserver variability of the measures was recorded and their means were used for further calculations. To study the ratio of the area of scarred retinochoroiditis over the area of the baseline active lesion (R). RESULTS: A total of 171 cases (83 males, 88 females) with a mean age of 31.6 ± 13.8 years were included. The average areas of active and scarred retinochoroiditis were, respectively, 1.32 ± 1.59 and 1.79 ± 2.36 optic disc area. The average ratio between scarred and active areas of retinochoroiditis was 1.36 [range 0.54-2.18]. The administration of a systemic treatment [R = 1.25, p = 0.003], the absence of a pre-existing scar [R = 1.05, p < 0.001] and a peripapillary location of the lesion [R = 0.85, p < 0.001] were each significantly associated with smaller scarred/active area ratios. CONCLUSIONS: We assessed in a standardized manner the ratio of scarred/active areas of toxoplasmic lesions and showed that the area of scarred lesions was on average slightly larger than the area of active retinochoroiditis.


Assuntos
Coriorretinite , Toxoplasmose Ocular , Adolescente , Adulto , Coriorretinite/diagnóstico , Coriorretinite/tratamento farmacológico , Cicatriz , Feminino , Fundo de Olho , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Toxoplasmose Ocular/diagnóstico , Toxoplasmose Ocular/tratamento farmacológico , Adulto Jovem
11.
Med Sci (Paris) ; 36(10): 893-899, 2020 Oct.
Artigo em Francês | MEDLINE | ID: mdl-33026332

RESUMO

Non-infectious uveitis is a heterogenous group of potentially blinding ocular autoimmune diseases that may represent a manifestation of a systemic condition or may affect the eyes only. A systemically administered anti-TNF has recently been approved for the treatment of non-infectious uveitis, broadening the therapeutic arsenal available to control intraocular inflammation and reduce uveitis complications that can lead to vision loss. When uveitis affects only the eyes, a local anti-TNF-α administration strategy could optimize the ocular therapeutic effect and reduce undesirable systemic side-effects. A new ocular method of non-viral gene therapy, currently in development, may broaden the indications for ocular anti-TNF-α agents, not only for uveitis but also for other diseases in which TNF-α-mediated neuro-inflammation has been demonstrated.


TITLE: Les anti-TNF-α pour le traitement des uvéites non infectieuses. ABSTRACT: Les molécules anti-TNF-α administrés par voie générale ont été approuvés récemment pour le traitement des uvéites non inflammatoires, élargissant l'arsenal thérapeutique dans le traitement de ces pathologies responsables de cécité évitable si l'inflammation est contrôlée. Quand seul l'œil est atteint, des stratégies d'administration locale permettraient d'optimiser les effets intraoculaires des molécules anti-TNF-α et d'en réduire les effets indésirables. Une nouvelle méthode de thérapie génique non virale, actuellement en développement, pourrait élargir les indications des molécules anti-TNF-α oculaires, non seulement pour les uvéites, mais également pour d'autres maladies dans lesquelles une neuro-inflammation impliquant le TNF-α a été démontrée.


Assuntos
Terapia Genética , Fator de Necrose Tumoral alfa/imunologia , Uveíte/terapia , Transtornos da Visão/prevenção & controle , Anticorpos Neutralizantes/genética , Anticorpos Neutralizantes/uso terapêutico , Doenças Autoimunes/terapia , Terapia Genética/métodos , Terapia Genética/tendências , Humanos , Fator de Necrose Tumoral alfa/antagonistas & inibidores
12.
BMC Ophthalmol ; 20(1): 205, 2020 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-32450833

RESUMO

BACKGROUND: Anterior segment optical coherence tomography (AS OCT) is a helpful tool used to diagnose and manage many corneal conditions, but its use has not been reported in case of peripheral ulcerative keratitis (PUK). The aim of this study is to describe AS OCT findings in cases of PUK. METHODS: Retrospective observational case series of six eyes presenting with a PUK and proven systemic vasculitis. Clinical course, slit lamp photographs, and AS OCT findings were the main outcomes. RESULTS: The AS OCT findings were found to correlate with the ocular disease's level of activity. In the acute stage, an absence of corneal epithelium, a scrambled appearance of the anterior stroma and a heterogeneous stromal reflectivity were observed. During the reduction of disease level activity, an irregular hyporeflective epithelium, a smoother anterior stroma, and a homogenous hyperreflective stroma were seen. At the healed stage, a filling of the corneal defect by a hyporeflective thick epithelium, the persistence of the hyperreflective underlying stroma, and a demarcation line were observed. The mean total corneal thickness at last follow-up was significantly thicker (509 ± 147 µm) compared with the mean corneal thickness at onset (408 ± 131 µm; P = 0.03). CONCLUSIONS: AS OCT provides an assessment of structural changes occurring in PUK, useful for its diagnosis and monitoring.


Assuntos
Segmento Anterior do Olho/diagnóstico por imagem , Substância Própria/diagnóstico por imagem , Úlcera da Córnea/diagnóstico por imagem , Epitélio Corneano/diagnóstico por imagem , Tomografia de Coerência Óptica , Adulto , Idoso , Antibacterianos/uso terapêutico , Azitromicina/uso terapêutico , Substância Própria/patologia , Úlcera da Córnea/tratamento farmacológico , Quimioterapia Combinada , Epitélio Corneano/patologia , Feminino , Seguimentos , Glucocorticoides/uso terapêutico , Humanos , Imunossupressores/uso terapêutico , Masculino , Metilprednisolona/uso terapêutico , Pessoa de Meia-Idade , Estudos Retrospectivos , Microscopia com Lâmpada de Fenda
13.
BMC Ophthalmol ; 18(1): 285, 2018 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-30390655

RESUMO

BACKGROUND: The early diagnosis of cancer is of crucial importance and a key prognostic factor. Cancer-associated retinopathy (CAR) can be symptomatic prior to other manifestations directly related to malignant tumors. The aim of this study was to show that, in selected cases, ophthalmic findings are consistent enough with the diagnosis of CAR to trigger investigations aimed at detecting a previously unknown malignancy. METHODS: This was a monocentric retrospective case series performed in a tertiary referral center. Patients with a diagnosis of CAR were included. Diagnosis was based on the clinical presentation, the visual field and electroretinogram alterations. The clinical presentation, visual field testing and electroretinographic results were analyzed as well as the malignancies identified following the diagnosis of CAR. Follow-up data was collected. RESULTS: Four patients (two men, two women, median age 65.5 years) were included. All patients presented with posterior segment inflammation at initial presentation as well as advanced visual field loss and an extinguished electroretinogram. The best corrected decimal visual acuity was 0.8 or better in both eyes of three patients and decreased to 0.3 OD and O.2 OS in one patient due to a bilateral macular edema. No patient had a previously known history of cancer. Once the diagnosis of CAR was made, investigations aimed at identifying a malignant tumors subsequently led to the diagnosis of two cases of small cell lung tumors, of one prostate carcinoma and of a uterine sarcoma. The treatment of CAR included plasmapheresis, systemic corticosteroids, azathioprine, cyclosporine and periocular or intraocular corticosteroid injections. In all cases the intraocular inflammation resolved, but pigment mottling, diffuse retinal atrophy, optic disc pallor and arterial narrowing were among manifestations observed during the follow-up of the patients. CONCLUSION: In selected patients, findings suggestive of CAR can be useful for the early detection of a cancer.


Assuntos
Diagnóstico Precoce , Síndromes Paraneoplásicas Oculares/diagnóstico , Retina/patologia , Doenças Retinianas/diagnóstico , Idoso , Idoso de 80 Anos ou mais , Eletrorretinografia , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/diagnóstico , Masculino , Pessoa de Meia-Idade , Nervo Óptico/patologia , Estudos Retrospectivos , Tomografia de Coerência Óptica
14.
Am J Ophthalmol ; 184: 129-136, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29032108

RESUMO

PURPOSE: To identify biomechanical and topographic changes of the cornea during pregnancy and the postpartum period and its association to hormonal changes. DESIGN: Prospective single-center observational cohort study. METHODS: Participants were 24 pregnant women (48 eyes), monitored throughout pregnancy and after delivery. Biomechanical and topographic corneal properties were measured using the Ocular Response Analyzer (ORA) and a Scheimpflug imaging system (Pentacam HR) each trimester and 1 month after delivery. At the same consultations blood plasma levels of estradiol (E2) and thyroid hormones (TSH, T3t, T4t) were also determined. A factorial MANCOVA was used to detect interactions between hormonal plasma levels and ocular parameters. RESULTS: Significant differences in corneal biomechanical and topographic parameters were found during pregnancy in relation to T3t (p = .01), T4t (p < .001), T3t/T4t (P = .001), and TSH (p = .001) plasma levels. E2 plasma levels (p = .092) and time period of measurement (p = .975) did not significantly affect corneal parameters. TSH levels significantly affected the maximal keratometry reading (p = .036), the vertical keratometry reading (p = .04), and the index of height asymmetry (p = .014). Those results persist after excluding hypothyroidism patients from the statistical analysis. CONCLUSIONS: Hormonal changes affecting corneal biomechanics and topography during pregnancy could be thyroid related. Dysthyroidism may directly influence corneal biomechanics and represents a clinically relevant factor that needs further investigation.


Assuntos
Córnea/fisiopatologia , Doenças da Córnea/diagnóstico , Topografia da Córnea/métodos , Complicações na Gravidez , Hormônios Tireóideos/sangue , Adulto , Córnea/patologia , Doenças da Córnea/sangue , Doenças da Córnea/fisiopatologia , Elasticidade , Feminino , Seguimentos , Humanos , Período Pós-Parto/sangue , Gravidez , Estudos Prospectivos
15.
Ophthalmology ; 124(12): 1808-1816, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28779905

RESUMO

PURPOSE: To identify predictors of treatment success in syphilitic uveitis (SU). DESIGN: Retrospective multicentric analysis of patients treated for SU. PARTICIPANTS: A total of 95 eyes (66 patients, mean [standard deviation] aged 49 [12.5] years, 31 [47%] of whom were human immunodeficiency virus [HIV]+) were analyzed. METHODS: Activity of SU was assessed at 1 week and 1 month after treatment onset, and at last follow-up. Improvement was defined by a ≥2-step decrease of both anterior chamber and vitreous haze inflammation levels, and by the size reduction in chorioretinal lesions. MAIN OUTCOME MEASURES: Recovery was defined as the resolution of inflammation in all anatomic structures at 1 month. RESULTS: Panuveitis and posterior uveitis were the most frequent findings. Inflammatory parameters were higher in HIV+ patients. Recovery was reported in 65% and 85% of eyes at 1 month and at last follow-up, respectively. In multivariate analysis, after adjusting for initial best-corrected visual acuity and the antimicrobial treatment regimen, clinical improvement at 1 week (corrected risk ratios [cRR], 3.5 [2.3-3.8]; P = 0.001) was predictive of recovery at 1 month, whereas the use of periocular dexamethasone injections (cRR, 0.05 [0.02-0.6]; P = 0.01) and methylprednisolone pulses negatively affected the outcomes of eyes. CONCLUSIONS: Early improvement is the strongest predictor of ophthalmological recovery in SU.


Assuntos
Antibacterianos/uso terapêutico , Infecções Oculares Bacterianas/tratamento farmacológico , Sífilis/tratamento farmacológico , Uveíte/tratamento farmacológico , Adulto , Azitromicina/uso terapêutico , Doxiciclina/uso terapêutico , Infecções Oculares Bacterianas/diagnóstico , Infecções Oculares Bacterianas/microbiologia , Feminino , Teste de Absorção do Anticorpo Treponêmico Fluorescente , Seguimentos , Soropositividade para HIV , Humanos , Masculino , Pessoa de Meia-Idade , Penicilina G Benzatina/uso terapêutico , Reação em Cadeia da Polimerase , Prognóstico , Estudos Retrospectivos , Sulfadiazina/uso terapêutico , Sífilis/diagnóstico , Sífilis/microbiologia , Sorodiagnóstico da Sífilis , Uveíte/diagnóstico , Uveíte/microbiologia , Acuidade Visual/fisiologia
16.
Surv Ophthalmol ; 61(2): 156-63, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26216341

RESUMO

Accurate characterization of a retinal detachment as traumatic is often difficult, but is important because it may instigate a careful search for occult coexistent traumatic pathology, affect the prognosis and the treatment of both eyes, influence insurance coverage benefits and medical-legal determinations, and is essential for epidemiologic studies. We review the epidemiology and pathophysiology of traumatic retinal detachment, common obstacles to correct diagnosis, diagnostic guidelines, and outline categories of traumatic causal relationships. Because there is no generally accepted definition of traumatic retinal detachment, we offer a practical one. Categorization as traumatic should be based on the particular history and physical examination rather than epidemiologic criteria.


Assuntos
Traumatismos Oculares/diagnóstico , Retina/lesões , Descolamento Retiniano/diagnóstico , Perfurações Retinianas/diagnóstico , Traumatismos Oculares/etiologia , Traumatismos Oculares/fisiopatologia , Humanos , Descolamento Retiniano/etiologia , Descolamento Retiniano/fisiopatologia , Perfurações Retinianas/etiologia , Perfurações Retinianas/fisiopatologia
17.
Surv Ophthalmol ; 60(1): 51-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25223495

RESUMO

It is widely accepted that the origin of subretinal fluid in rhegmatogenous retinal detachment (RRD) is liquid vitreous and that posterior vitreous detachment (PVD) and associated retinal tears are caused by vitreoretinal traction from intra-ocular currents, contraction of collagen fibers, and gravity. These explanations, however, are incomplete. We present a new synthesis of experimental and clinical evidence, updating understanding of fundamental pathophysiological processes in RRD. Misdirected aqueous flow is shown to more convincingly explain the origin of subretinal fluid in clinical RRD, to be the most likely cause of acute PVD and retinal tear formation, and also to contribute to initial detachment of the retina at retinal tears. Misdirected aqueous flow in RRD is a pathophysiological process, rather than the "aqueous misdirection syndrome", and occurs without visible anterior chamber shallowing or acute glaucoma.


Assuntos
Humor Aquoso/fisiologia , Descolamento Retiniano/fisiopatologia , Humanos , Perfurações Retinianas/fisiopatologia , Líquido Sub-Retiniano/fisiologia , Corpo Vítreo/patologia , Descolamento do Vítreo/fisiopatologia
18.
J Refract Surg ; 30(12): 850-4, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25437485

RESUMO

PURPOSE: To investigate whether optimized photoactivated chromophore for keratitis-corneal collagen cross-linking (PACK-CXL) treatment settings allow accelerating treatment while maintaining antibacterial efficacy. METHODS: Staphylococcus aureus and Pseudomonas aeruginosa strains were irradiated with ultraviolet-A light of equal fluence but different intensity settings (18 mW/cm² for 5 minutes and 36 mW/cm² for 2.5 minutes). The killing rate was determined by comparing the number of colony-forming units between cross-linked specimens and non-irradiated controls. The potential additional effect of 0.001% benzalkonium chloride was also investigated. RESULTS: The killing rates for Staphylococcus aureus were 92.5% ± 5.5% (5 minutes at 18 mW/cm²) and 94.4% ± 2.9% (2.5 minutes at 36 mW/cm²). For Pseudomonas aeruginosa, the killing rates were 93.2% ± 8.3% (5 minutes at 18 mW/cm²) and 92.9% ± 5.0% (2.5 minutes at 36 mW/cm²). The presence of benzalkonium chloride in the riboflavin solution did not increase the killing rate significantly. CONCLUSIONS: The antibacterial efficacy of PACK-CXL follows the Bunsen-Roscoe law of reciprocity and can be maintained even when the irradiation intensity is considerably increased. These optimized settings may allow a shortened treatment time in the future for PACK-CXL and thus help facilitate the transition from the operating room to the slit lamp for treatment.


Assuntos
Antibacterianos/uso terapêutico , Úlcera da Córnea/tratamento farmacológico , Infecções Oculares Bacterianas/tratamento farmacológico , Fármacos Fotossensibilizantes/uso terapêutico , Infecções por Pseudomonas/tratamento farmacológico , Riboflavina/uso terapêutico , Infecções Estafilocócicas/tratamento farmacológico , Animais , Antibacterianos/farmacologia , Compostos de Benzalcônio/farmacologia , Contagem de Colônia Microbiana , Úlcera da Córnea/microbiologia , Infecções Oculares Bacterianas/microbiologia , Infecções por Pseudomonas/microbiologia , Pseudomonas aeruginosa/efeitos dos fármacos , Pseudomonas aeruginosa/isolamento & purificação , Pseudomonas aeruginosa/efeitos da radiação , Riboflavina/farmacologia , Infecções Estafilocócicas/microbiologia , Staphylococcus aureus/efeitos dos fármacos , Staphylococcus aureus/isolamento & purificação , Staphylococcus aureus/efeitos da radiação , Suínos , Raios Ultravioleta
19.
Invest Ophthalmol Vis Sci ; 55(5): 2881-4, 2014 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-24677109

RESUMO

PURPOSE: New corneal cross-linking (CXL) devices are capable of using higher UV-A light irradiances than used in original CXL protocols. The Bunsen-Roscoe law states that a photochemical reaction should stay constant if the delivered total energy is kept constant; however, little clinical data are available to support this hypothesis. METHODS: We investigated the biomechanical properties of four groups (n = 50 each) of porcine corneas. Three groups were exposed to riboflavin 0.1 % and UV-A irradiation of equal total energy (3 mW/cm(2) for 30 minutes, 9 mW/cm(2) for 10 minutes, and 18 mW/cm(2) for 5 minutes). Controls were exposed to riboflavin 0.1% without irradiation. Young's modulus of 5-mm wide corneal strips was used as an indicator of corneal stiffness. RESULTS: We observed a decreased stiffening effect with increasing UV-A intensity. Young's modulus at 10% strain showed significant differences between 3 mW/cm(2) and 9 mW/cm(2) (P = 0.002), 3 mW/cm(2) and 18 mW/cm(2) (P = 0.0002), 3 mW/cm(2) and the control group (P < 0.0001), and 9 mW/cm(2) and the control group (P = 0.015). There was no difference between 18 mW/cm(2) and the control group (P = 0.064) and between 9 mW/cm(2) and 18 mW/cm(2) (P = 0.503). CONCLUSIONS: The biomechanical effect of CXL decreased significantly when using high irradiance/short irradiation time settings. Intrastromal oxygen diffusion capacity and increased oxygen consumption associated with higher irradiances may be a limiting factor leading to reduced treatment efficiency. Our results regarding the efficiency of high-irradiance collagen cross-linking (CXL) raise concerns about the clinical efficiency of the new high-irradiance CXL devices already used in clinical practice without proper validation.


Assuntos
Colágeno/metabolismo , Córnea/fisiologia , Reagentes de Ligações Cruzadas/farmacologia , Raios Ultravioleta , Análise de Variância , Animais , Fenômenos Biomecânicos/fisiologia , Córnea/efeitos dos fármacos , Córnea/efeitos da radiação , Relação Dose-Resposta à Radiação , Elasticidade/fisiologia , Humanos , Modelos Animais , Fármacos Fotossensibilizantes/farmacologia , Riboflavina/farmacologia , Suínos
20.
Front Neurol ; 4: 101, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23885254

RESUMO

In relation to mechanisms involved in functional recovery of manual dexterity from cervical cord injury or from motor cortical injury, our goal was to determine whether the movements that characterize post-lesion functional recovery are comparable to original movement patterns or do monkeys adopt distinct strategies to compensate the deficits depending on the type of lesion? To this aim, data derived from earlier studies, using a skilled finger task (the modified Brinkman board from which pellets are retrieved from vertical or horizontal slots), in spinal cord and motor cortex injured monkeys were analyzed and compared. Twelve adult macaque monkeys were subjected to a hemi-section of the cervical cord (n = 6) or to a unilateral excitotoxic lesion of the hand representation in the primary motor cortex (n = 6). In addition, in each subgroup, one half of monkeys (n = 3) were treated for 30 days with a function blocking antibody against the neurite growth inhibitory protein Nogo-A, while the other half (n = 3) represented control animals. The motor deficits, and the extent and time course of functional recovery were assessed. For some of the parameters investigated (wrist angle for horizontal slots and movement types distribution for vertical slots after cervical injury; movement types distribution for horizontal slots after motor cortex lesion), post-lesion restoration of the original movement patterns ("true" recovery) led to a quantitatively better functional recovery. In the motor cortex lesion groups, pharmacological reversible inactivation experiments showed that the peri-lesion territory of the primary motor cortex or re-arranged, spared domain of the lesion zone, played a major role in the functional recovery, together with the ipsilesional intact premotor cortex.

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