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1.
J Immigr Minor Health ; 25(6): 1246-1253, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37402075

RESUMO

Research on COVID-19 vaccine hesitancy has been sparse among Latino/a immigrants, a population at high risk for infection. This exploratory study examines rates of vaccine acceptance and its association with psychological antecedents of vaccination among Latino/a immigrants. A cross-sectional telephone survey on perceptions of COVID-19 was administered between October 2020 to February 2021 in South Florida to 200 adult Latino/a immigrants. Descriptive statistics, bivariate analysis, and logistic regression were employed to determine the influence of independent variables on vaccine acceptance. Most participants indicated a willingness to get vaccinated. Participants with higher confidence (aOR = 10.2, 95% CI: 4.8-21.8) and collective responsibility scores were (aOR = 3.1, 95%CI:1.3-6.9) more likely to report vaccine acceptance than those with lower scores. No other psychological antecedents or demographic variables were significantly associated with vaccine acceptance. Study results provide insights into motivating factors for vaccination that can inform culturally tailored education campaigns to increase vaccine acceptability in this population.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Emigrantes e Imigrantes , Hispânico ou Latino , Vacinação , Adulto , Humanos , COVID-19/prevenção & controle , Vacinas contra COVID-19/administração & dosagem , Estudos Transversais , Responsabilidade Social , Confiança , Aceitação pelo Paciente de Cuidados de Saúde
2.
PLoS One ; 17(7): e0264566, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35901034

RESUMO

Current medical guidelines consider pregnant women with COVID-19 to be a high-risk group. Since physiological gestation downregulates the immunological response to maintain "maternal-fetal tolerance", SARS-CoV-2 infection may constitute a potentially threatening condition to both the mother and the fetus. To establish the immune profile in pregnant COVID-19+ patients, a cross-sectional study was conducted. Pregnant women with COVID-19 (P-COVID-19+; n = 15) were analyzed and compared with nonpregnant women with COVID-19 (NP-COVID-19+; n = 15) or those with physiological pregnancy (P-COVID-19-; n = 13). Serological cytokine and chemokine concentrations, leucocyte immunophenotypes, and mononuclear leucocyte responses to polyclonal stimuli were analyzed in all groups. Higher concentrations of serological TNF-α, IL-6, MIP1b and IL-4 were observed within the P-COVID-19+ group, while cytokines and chemokines secreted by peripheral leucocytes in response to LPS, IL-6 or PMA-ionomicin were similar among the groups. Immunophenotype analysis showed a lower percentage of HLA-DR+ monocytes in P-COVID-19+ than in P-COVID-19- and a higher percentage of CD39+ monocytes in P-COVID-19+ than in NP-COVID-19+. After whole blood polyclonal stimulation, similar percentages of T cells and TNF+ monocytes between groups were observed. Our results suggest that P-COVID-19+ elicits a strong inflammatory response similar to NP-COVID19+ but also displays an anti-inflammatory response that controls the ATP/adenosine balance and prevents hyperinflammatory damage in COVID-19.


Assuntos
COVID-19 , Monócitos , Apirase/imunologia , Estudos Transversais , Citocinas , Feminino , Humanos , Interleucina-6 , Gravidez , SARS-CoV-2
5.
Rev Esp Cir Ortop Traumatol ; 66(3): 229-234, 2022.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-35317990

RESUMO

INTRODUCTION: The increase in the prevalence of osteoporosis associated with ageing, and sports and traffic accidents, are responsible for the increase in ankle fractures. This fact emphasises the need to protocolise their care in order to provide greater clinical benefit to patients, and better cost-benefit ratios to the health system. AIM AND METHOD: At present, there is no common framework for implementation of protocols and internal circuits of the Spanish centres for ankle fractures by means of major outpatient surgery (MOS), which is the final objective of this position paper. For this, the clinical and economic evidence of MOS, the local environment and the strategies for its implementation are reviewed, related to ankle fractures. CLINICAL AND ECONOMIC EVIDENCE: The results showed a better cost-benefit ratio in outpatients compared to traditional hospitalisation, with lower complications and readmission rates and therefore significant cost savings. BARRIERS AND STRATEGIES: General and specific barriers are reviewed, as well as strategies and circuits for proper implementation. RESULTS: The results show lower complication and readmission rates together with significant cost savings. It entails a better cost-benefit ratio in outpatient care compared to traditional hospitalisation. POSITION STATEMENT: The implementation of MOS contributes to improve the quality of care, and the satisfaction of both, patient and health care team, while optimising the utilisation of resources. Ankle fractures in patients selected for both the underlying pathology, anaesthetic risk, and the type of fracture can be operated satisfactorily under the MOS.

6.
Ethn Health ; 27(6): 1271-1289, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-33586536

RESUMO

Alcohol misuse affects 15 million people in the United States. Compared to White men, Latino men have disproportionately higher rates of both alcohol misuse and negative alcohol-related consequences (e.g. drunk driving, liver disease, alcohol dependence, HIV/AIDS). This cross sectional study examined how cultural stressors [immigration stress and negative context of reception (NCR)] coupled with traditional Latino male gender norms (machismo and caballerismo) influences alcohol use severity (AUS) among adult Latino immigrant men. Data for the present study was collected between 2017 and 2018 from 279 Cuban, Central American, and South American adult Latino men who immigrated to the US approximately 10 years prior. Results from hierarchical multiple regression analysis revealed higher levels of perceived NCR (ß = 0.15, p = .01), and machismo (ß = 0.16, p = .02) were associated with greater AUS. Significant interaction effects were found between both cultural stressors and machismo [immigration stress x machismo (ß = 0.22, p < .001); NCR x machismo (ß = 0.22, p < .001)] whereby higher levels of machismo strengthened the association between cultural stress and AUS. Findings from the present study can inform culturally appropriate interventions aimed at mitigating alcohol use among Latino immigrant men.


Assuntos
Alcoolismo , Emigrantes e Imigrantes , Adulto , Consumo de Bebidas Alcoólicas , Estudos Transversais , Hispânico ou Latino , Humanos , Estados Unidos/epidemiologia
7.
Nefrología (Madrid) ; 38(2): 190-196, mar.-abr. 2018. mapas, tab, graf
Artigo em Espanhol | IBECS | ID: ibc-171087

RESUMO

Introducción: La poliquistosis renal autosómica dominante es la enfermedad renal hereditaria más frecuente aunque los datos disponibles generalmente son tras el inicio del tratamiento renal sustitutivo. Objetivo: Conocer la situación global de la poliquistosis renal autosómica dominante en el ámbito sanitario de Granada. Material y métodos: Desde enero 2007 hasta diciembre 2016 hemos recogido información clínica, familiar y demográfica de todos los pacientes con poliquistosis renal autosómica dominante, estuvieran o no en tratamiento renal sustitutivo, atendidos en el área de Granada. Se han utilizado los programas informáticos SPSS 15.0 y GenoPro. Resultados: Mil ciento siete pacientes diagnosticados, el 50,6% son varones. Se han estudiado 4-6 generaciones/familia. El 99,1% de raza caucásica. Hay áreas geográficas con mayor concentración. No hay antecedentes familiares en el 2,43%. La edad media de diagnóstico es de 34±17,8 años y en el 57,7% de los casos, el diagnóstico se produce después de tener descendencia. El principal motivo de diagnóstico son los antecedentes familiares (46,4%). La edad media de entrada en técnica es de 54,2±11,05 años. El 96,3% de los fallecidos tenían algún grado de insuficiencia renal en el momento del exitus. La edad media del exitus es de 60,9±14,10 años, siendo desconocida la principal causa de muerte (33,5%) seguida de la cardiovascular (27,8%). Conclusiones: Casos y familias se concentran en algunas áreas geográficas, un número importante de individuos están sin diagnosticar, fallecen antes por causa cardiovascular y se diagnostican tarde respecto al momento reproductivo. Dado que no hay tratamiento curativo, la estrategia de prevención primaria mediante el diagnóstico genético preimplantacional adquiere protagonismo (AU)


Introduction: Although autosomal dominant polycystic kidney disease is the most common hereditary kidney disease, available data tend to be limited to after initiation of renal replacement therapy. Objective: To ascertain an overview of autosomal dominant polycystic kidney disease within the health area of Granada in southern Spain. Material and methods: From January 2007 to December 2016, we collected clinical, family and demographic information about all patients with autosomal dominant polycystic kidney disease, irrespective of whether or not they were treated with RRT, in the Granada health area. The computer software SPSS 15.0 and GenoPro were used. Results: 50.6% of the 1,107 diagnosed patients were men. 99.1% were Caucasian and 4-6 generations/family were studied. The geographical distribution was heterogeneous. There was no family history in 2.43%. The mean age of diagnosis was 34.0±17.80 years and the diagnosis was made after having offspring in 57.7% of cases. The main reason for diagnosis was family history (46.4%). The mean age of initiation of renal replacement therapy was 54.2±11.05 years. 96.3% of the deceased had some degree of renal failure at the time of death. The mean age of death was 60.9±14.10 years, the main cause of death being unknown in 33.5% of cases, followed by cardiovascular (27.8%). Conclusions: Cases and families were concentrated in certain geographical areas and a significant number of individuals were undiagnosed prior to cardiovascular death or diagnosed late after reproduction. Given that there is currently no curative treatment, the primary prevention strategy of preimplantation genetic diagnosis should play a leading role (AU)


Assuntos
Humanos , Masculino , Feminino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Doenças Renais Policísticas/epidemiologia , Infecções Urinárias/complicações , Prevenção Primária/tendências , Espanha/epidemiologia , Distribuição por Sexo , Doenças Renais Policísticas/classificação , Doenças Renais Policísticas/prevenção & controle , Doenças Renais Policísticas/terapia , Mortalidade/tendências
8.
Nefrologia (Engl Ed) ; 38(2): 190-196, 2018.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-29471960

RESUMO

INTRODUCTION: Although autosomal dominant polycystic kidney disease is the most common hereditary kidney disease, available data tend to be limited to after initiation of renal replacement therapy. OBJECTIVE: To ascertain an overview of autosomal dominant polycystic kidney disease within the health area of Granada in southern Spain. MATERIAL AND METHODS: From January 2007 to December 2016, we collected clinical, family and demographic information about all patients with autosomal dominant polycystic kidney disease, irrespective of whether or not they were treated with RRT, in the Granada health area. The computer software SPSS 15.0 and GenoPro were used. RESULTS: 50.6% of the 1,107 diagnosed patients were men. 99.1% were Caucasian and 4-6 generations/family were studied. The geographical distribution was heterogeneous. There was no family history in 2.43%. The mean age of diagnosis was 34.0±17.80 years and the diagnosis was made after having offspring in 57.7% of cases. The main reason for diagnosis was family history (46.4%). The mean age of initiation of renal replacement therapy was 54.2±11.05 years. 96.3% of the deceased had some degree of renal failure at the time of death. The mean age of death was 60.9±14.10 years, the main cause of death being unknown in 33.5% of cases, followed by cardiovascular (27.8%). CONCLUSIONS: Cases and families were concentrated in certain geographical areas and a significant number of individuals were undiagnosed prior to cardiovascular death or diagnosed late after reproduction. Given that there is currently no curative treatment, the primary prevention strategy of preimplantation genetic diagnosis should play a leading role.


Assuntos
Rim Policístico Autossômico Dominante/epidemiologia , Adolescente , Adulto , Idade de Início , Idoso , Doenças Cardiovasculares/mortalidade , Causas de Morte , Diagnóstico Tardio , Gerenciamento Clínico , Feminino , Aconselhamento Genético , Humanos , Expectativa de Vida , Masculino , Pessoa de Meia-Idade , Rim Policístico Autossômico Dominante/genética , Rim Policístico Autossômico Dominante/prevenção & controle , Rim Policístico Autossômico Dominante/terapia , Prevalência , Terapia de Substituição Renal , Espanha/epidemiologia , Adulto Jovem
10.
J Immigr Minor Health ; 17(6): 1697-704, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25787351

RESUMO

Changing social capital among recent Latino immigrants (RLIs) influences substance use post-immigration. This was a longitudinal study of 476 South/Central American RLIs examining social capital and substance use changes pre to post-immigration. Self-reported measures of social capital and substance use were compared between surveys administered within 1 year of immigration and 2 years post-immigration. Post-immigration, social capital, hazardous drinking and illicit drug use decreased. Women were less likely to engage in hazardous drinking [adjusted odds ratio (AOR) .32, p < .001], and less likely to use illicit drugs (AOR .67, p = .01). Documented individuals with higher levels of 'business' social capital had increased odds of illicit drug use (AOR 2.20, p < .05). Undocumented individuals with higher levels of 'friend and others' social capital had decreased risk for hazardous drinking and illicit drug use (AOR .55, p < .01; AOR .56, p < .05). Documentation status moderated the relationship between social capital and substance use. RLIs can be targeted for primary prevention of substance abuse.


Assuntos
Consumo de Bebidas Alcoólicas/etnologia , Emigrantes e Imigrantes/psicologia , Hispânico ou Latino/psicologia , Capital Social , Transtornos Relacionados ao Uso de Substâncias/etnologia , Adolescente , Adulto , Feminino , Florida/epidemiologia , Humanos , Drogas Ilícitas , Estudos Longitudinais , Masculino , Apoio Social , Fatores Socioeconômicos , Fatores de Tempo , Imigrantes Indocumentados/psicologia , Adulto Jovem
13.
Mar Pollut Bull ; 80(1-2): 222-33, 2014 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-24495930

RESUMO

Reverse osmosis membranes at many desalination plants are disinfected by periodic shock treatments with sodium metabisulphite, which have potentially toxic effects to the environment for marine life, although no empirical and experimental evidence for this is yet available. The aim of this study was to characterise for the first time, the physico-chemical modification of the marine environment and its biological effects, caused by hypersaline plumes during these membrane cleaning treatments. The case study was the Maspalomas II desalination plant, located in the south of Gran Canaria (Canary Islands, Spain). Toxicity bioassays were performed on marine species characteristic for the infralittoral soft bottoms influenced by the brine plume (Synodus synodus and Cymodocea nodosa), and revealed a high sensitivity to short-term exposure to low sodium metabisulphite concentrations. The corrective measure of incorporating a diffusion system with Venturi Eductors reduced nearly all the areas of influence, virtually eliminating the impact of the disinfectant.


Assuntos
Alismatales/fisiologia , Ecossistema , Sais/toxicidade , Sulfitos/toxicidade , Poluentes Químicos da Água/toxicidade , Monitoramento Ambiental , Salinidade , Sais/análise , Água do Mar/química , Espanha , Sulfitos/análise , Poluentes Químicos da Água/análise , Purificação da Água/métodos
14.
Biol Trace Elem Res ; 157(3): 205-10, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24464602

RESUMO

This study was performed in order to analyze the relationships between hair zinc, lead, and cadmium with the kind of diet consumed (by recall of the diet consumed the previous 14 days), living area (urban or rural), tobacco smoking, and body mass index (BMI) among 419 individuals of the Canary Archipelago. Median values and interquartile range were 43 µg/g (18.50-132.50) for zinc, 4.09 µg/g (2.19-8.38) for lead, and 0.128 µg/g (0.05-0.30) for cadmium. We observed that hair zinc was markedly elevated among those consuming fish more frequently and, to a lesser amount, among those who consumed meat frequently, among those living in urban areas, and among those with BMI over 25 kg/m(2), keeping a significant relationship with BMI. Hair lead was also higher among fish consumers, showed a trend to higher values among inhabitants of urban areas, and was lower among obese individuals. Hair cadmium was higher among those who consumed less vegetables and fruits. By multivariate analysis, introducing the variables meat, fish, and vegetable consumption, urban/rural; sex; age; and BMI values, we observed that fish consumption (beta = 0.15) was the only variable independently associated to higher zinc levels; fish consumption (beta = 0.15) and meat consumption (beta = 0.17) were related to high cadmium levels, whereas meat consumption was significantly associated to higher hair lead levels (beta = 0.15). Therefore, we conclude that hair zinc, cadmium, and lead seem to depend more heavily on dietary habits than on tobacco consumption or living in rural or urban areas.


Assuntos
Cádmio/análise , Dieta , Exposição Ambiental/análise , Cabelo/química , Chumbo/análise , Zinco/análise , Adulto , Animais , Índice de Massa Corporal , Feminino , Peixes , Frutas , Voluntários Saudáveis , Humanos , Masculino , Carne , Análise Multivariada , Obesidade , Fumar , Verduras , Adulto Jovem
15.
Nutr Hosp ; 31(3): 1109-15, 2014 Oct 03.
Artigo em Espanhol | MEDLINE | ID: mdl-25726200

RESUMO

INTRODUCTION: Intestinal failure is being an entity with higher prevalence in the pediatric age, especially due to bowel resections causing the appearance of a short bowel syndrome. OBJECTIVES: To determine the prevalence and etiology of cases of short bowel syndrome (SIC) and Intestinal Failure (FI) existing in Andalusia. Analyze factors involved in evolution, the number of transplant patients and to know the time required to achieve enteral autonomy, studying whether there are differences in management between different participants. METHODS: Multicenter retrospective descriptive observational study in which are collected data of patients diagnosed with short bowel syndrome or intestinal failure in 6 hospitals in Andalusia in the period from 1 January 2008 to 31 January 2014. RESULTS: 25 patients. Average age at diagnosis 7.4 months. Average length of remnant intestine: 113.8 cm; 64% of patients with <75 cm length remaining intestine. We show that: the early introduction of enteral nutrition is a factor favoring the suspension of the NP (p = 0'033); and that the prevention of liver disease associated with parenteral nutrition (EHANP) is favored by: the use of fewer lipid Parenteral Nutrition (p = 0'008), a greater length of remaining intestine (p = 0'049 ), the early introduction of enteral nutrition (p = 0'009) and a lower gestational age (p = 0'006).


Introducción: El Fracaso intestinal está siendo una entidad con mayor prevalencia dentro de la edad pediátrica, en especial debido a resecciones importantes de intestino que terminan provocando la aparición de un Síndrome de Intestino Corto. Objetivos: Conocer la prevalencia y etiología de los casos de Síndrome de Intestino Corto (SIC) y Fracaso Intestinal (FI) existentes en la comunidad andaluza. Analizar los factores relacionados en su evolución, el número de pacientes trasplantados y conocer el tiempo necesario para lograr la autonomía enteral, estudiando si existen diferencias en el manejo entre los diferentes participantes. Métodos: Estudio observacional descriptivo retrospectivo multicéntrico en el cual se recogen los datos de los pacientes diagnosticados de Síndrome de Intestino corto o Fracaso intestinal en 6 centros hospitalarios de Andalucía en el periodo comprendido entre el 1 de enero de 2.008 y el 31 de Enero de 2.014. Resultados: 25 pacientes. Edad media al diagnóstico: 7,4 meses. Longitud media de intestino remanente 113,8 cm; 64% pacientes con.


Assuntos
Enteropatias/epidemiologia , Síndrome do Intestino Curto/epidemiologia , Causas de Morte , Nutrição Enteral , Feminino , Idade Gestacional , Humanos , Lactente , Recém-Nascido , Doenças do Prematuro/epidemiologia , Doenças do Prematuro/cirurgia , Masculino , Nutrição Parenteral , Estudos Retrospectivos , Espanha/epidemiologia
16.
Arch. Soc. Esp. Oftalmol ; 88(10): 393-397, oct. 2013. graf
Artigo em Espanhol | IBECS | ID: ibc-116379

RESUMO

Objetivos: Calcular la variabilidad interindividual y reproducibilidad de la tomografía confocal (HRT), polarimetría láser (GDx) y tomografía de coherencia óptica (OCT Cirrus) para determinar el espesor de la capa de fibras ganglionares. Método: Se examinaron 2 veces 75 ojos normales. La variabilidad interindividual se analizó previa normalización de los resultados. Para medir la variabilidad entre exámenes se utilizó el coeficiente de variación y para analizar la correlación entre variables, el coeficiente de Pearson. Resultados: La variabilidad interindividual fue similar en GDx (8,9%) y en OCT (11,1%) pero muy elevada en HRT (30,0%). Ningún instrumento detectó cambios significativos con la edad. El coeficiente de variación del espesor total, entre 2 exámenes del mismo sujeto, fue significativamente inferior (p < 0,05) en GDx (1,4) que en OCT (2,0) y muy elevado en HRT (6,4). Lo mismo ocurrió al analizar las fibras superiores (GDx = 1,8; OCT = 2,9; HT = 6,6), pero no las inferiores, donde solo se observaron diferencias significativas con HRT (GDx = 2,2, OCT = 2,7, HRT = 7,0).Entre los resultados de OCT y GDx existió una correlación significativa al comparar los primeros (r = 0,46; p < 0,0001) y los segundos exámenes (r = 0,52; p < 0,0001). Sin embargo, no se observó ninguna correlación significativa entre los datos aportados por HRT respecto a los 2 instrumentos restantes (p > 0,05). Conclusiones: HRT presenta un exceso de dispersión interindividual y de variabilidad intertest en la estimación del espesor del haz de fibras nerviosas. GDx presenta, en este aspecto, ligeras ventajas respecto a OCT (AU)


Objective: To estimate the variability and reproducibility of confocal tomography (HRT), scanning laser polarimetry (GDx) and optical coherence tomography (OCT-Cirrus) to determine the thickness of the layer of ganglion fibers. Method: A total of 75 normal eyes were examined twice. Inter-individual variability was analyzed after standardizing the results. The coefficient of variation was used to measure the variability between tests, and the Pearson coefficient was used to analyze the correlation between variables. Results: The inter-individual variability was similar in GDx (8.9%) and OCT (11.1%), but very high in HRT (30.0%). No instrument detected significant changes with age. The coefficient of variation of the total thickness between the examinations of the same subject was significantly lower (P < 0.05) in GDx (1.4) than in OCT (2.0), but very high in HRT (6.4). The same was true when analyzing the upper fibers (GDx = 1.8, OCT = 2.9, HRT = 6.6), but not with the lower ones, where the only significant differences were observed with HRT (GDx = 2.2, OCT = 2.7, HRT = 7.0). Among the results of OCT and GDx, there was a significant correlation when comparing the first (r = 0.46, P < 0.0001) and second examinations (r = 0.52, P < 0.0001). However there was no significant relationship between the data provided by HRT for the two remaining instruments (P > 0.05). Conclusions: There is a wide variation in the inter-individual and inter-test measurement of the thickness of the of nerve fibers layers using HRT. GDx has, in this respect, slight advantages over OCT (AU)


Assuntos
Humanos , Tomografia de Coerência Óptica/métodos , Fibras Nervosas , Glaucoma/diagnóstico , Microscopia Confocal/métodos , Variação Anatômica , Reprodutibilidade dos Testes
17.
Arch Soc Esp Oftalmol ; 88(10): 393-7, 2013 Oct.
Artigo em Espanhol | MEDLINE | ID: mdl-24060303

RESUMO

OBJECTIVE: To estimate the variability and reproducibility of confocal tomography (HRT), scanning laser polarimetry (GDx) and optical coherence tomography (OCT-Cirrus) to determine the thickness of the layer of ganglion fibers. METHOD: A total of 75 normal eyes were examined twice. Inter-individual variability was analyzed after standardizing the results. The coefficient of variation was used to measure the variability between tests, and the Pearson coefficient was used to analyze the correlation between variables. RESULTS: The inter-individual variability was similar in GDx (8.9%) and OCT (11.1%), but very high in HRT (30.0%). No instrument detected significant changes with age. The coefficient of variation of the total thickness between the examinations of the same subject was significantly lower (P<.05) in GDx (1.4) than in OCT (2.0), but very high in HRT (6.4). The same was true when analyzing the upper fibers (GDx=1.8, OCT=2.9, HRT = 6.6), but not with the lower ones, where the only significant differences were observed with HRT (GDx = 2.2, OCT = 2.7, HRT = 7.0). Among the results of OCT and GDx, there was a significant correlation when comparing the first (r=0.46, P<.0001) and second examinations (r=0.52, P<.0001). However there was no significant relationship between the data provided by HRT for the two remaining instruments (P>.05). CONCLUSIONS: There is a wide variation in the inter-individual and inter-test measurement of the thickness of the of nerve fibers layers using HRT. GDx has, in this respect, slight advantages over OCT.


Assuntos
Antropometria/métodos , Células Ganglionares da Retina/ultraestrutura , Polarimetria de Varredura a Laser , Tomografia de Coerência Óptica , Tomografia/métodos , Adulto , Fatores Etários , Estudos Transversais , Feminino , Variação Genética , Humanos , Masculino , Pessoa de Meia-Idade , Fibras Nervosas/ultraestrutura , Tamanho do Órgão , Reprodutibilidade dos Testes
18.
Arch. Soc. Esp. Oftalmol ; 88(5): 168-173, mayo 2013. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-112658

RESUMO

Objetivo: Estimar el grado de error en la determinación subjetiva del límite papilar.Método1) Fueron evaluadas 169 imágenes papilares por cinco expertos para delimitar los bordes papilares en 8 posiciones (cada 45°). 2) Las áreas estimadas en 26 casos se compararon con las medidas mediante tomógrafo de coherencia óptica (OCT-Cirrus). Resultados: 1) La variación media del radio papilar estimado fue de ± 5,2%, sin diferencias significativas entre sectores. Entre los cinco expertos existieron diferencias específicas (p<0,001) de cada uno respecto a los restantes. 2) El área papilar medida por OCT-Cirrus fue de 1,78 mm2 (DE=0,27). Los resultados de los expertos que informaron de áreas menores estuvieron mejor correlacionados con el área de OCT-Cirrus (r = 0,77-0,88) que los que informaron de áreas mayores (r=0,61-0,69) (p<0,05 en casos extremos). Conclusiones: Existen patrones específicos de cada experto para definir los límites papilares que pueden significar variaciones del 20% en la estimación de su área. Aquellos expertos que realizan delimitaciones menores tuvieron una mayor coincidencia con el método objetivo utilizado. Proponemos una herramienta web de autoevaluación y entrenamiento en esta tarea (AU)


Objective: Estimation of the error rate in the subjective determination of the optic nerve head edge and area.Method1) 169 images of optic nerve disc were evaluated by five experts for the defining of the edges in 8 positions (every 45°). 2) The estimated areas of 26 cases were compared with the measurements of the Cirrus Optical Coherence Tomography (OCT-Cirrus). Results: 1) The mean variation of the estimated radius was ±5.2%, with no significant differences between sectors. Specific differences were found between the 5 experts (P <.001), each one compared with the others. 2) The disc area measured by the OCT-Cirros was 1.78 mm2 (SD =0.27). The results corresponding to the experts who detected smaller areas were better correlated to the area detected by the OCT-Cirrus (r=0.77-0.88) than the results corresponding to larger areas (r =0.61-0.69) (P <.05 in extreme cases). Conclusions: There are specific patterns in each expert for defining the disc edges and involve 20% variation in the estimation of the optic nerve area. The experts who detected smaller areas have a higher agreement with the objective method used. A web tool is proposed for self-assessment and training in this task (AU)


Assuntos
Humanos , Disco Óptico/anatomia & histologia , Nervo Óptico/anatomia & histologia , Glaucoma/diagnóstico , Papiledema/diagnóstico
19.
Arch Soc Esp Oftalmol ; 88(5): 168-73, 2013 May.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-23623016

RESUMO

OBJECTIVE: Estimation of the error rate in the subjective determination of the optic nerve head edge and area. METHOD: 1) 169 images of optic nerve disc were evaluated by five experts for the defining of the edges in 8 positions (every 45°). 2) The estimated areas of 26 cases were compared with the measurements of the Cirrus Optical Coherence Tomography (OCT-Cirrus). RESULTS: 1) The mean variation of the estimated radius was ±5.2%, with no significant differences between sectors. Specific differences were found between the 5 experts (P <.001), each one compared with the others. 2) The disc area measured by the OCT-Cirros was 1.78 mm² (SD =0.27). The results corresponding to the experts who detected smaller areas were better correlated to the area detected by the OCT-Cirrus (r=0.77-0.88) than the results corresponding to larger areas (r =0.61-0.69) (P <.05 in extreme cases). CONCLUSIONS: There are specific patterns in each expert for defining the disc edges and involve 20% variation in the estimation of the optic nerve area. The experts who detected smaller areas have a higher agreement with the objective method used. A web tool is proposed for self-assessment and training in this task.


Assuntos
Disco Óptico/anatomia & histologia , Humanos , Variações Dependentes do Observador , Tomografia de Coerência Óptica/estatística & dados numéricos
20.
Ophthalmologe ; 110(2): 107-15, 2013 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-23392836

RESUMO

We present a review and update on Pulsar perimetry, which combines temporal frequency, contrast and spatial frequency stimuli. The effects of age, visual acuity, and learning on results are described. Data on threshold fluctuation, signal-to-noise ratio, and the possibility of reducing noise with filtering techniques are provided. We describe its dynamic range and the possibility of compensating for profound defects. Finally, we show the results obtained in normal patients and in those with ocular hypertension or initial glaucoma, as well as an analysis of glaucoma progression.


Assuntos
Fusão Flicker , Glaucoma/diagnóstico , Glaucoma/fisiopatologia , Estimulação Luminosa/métodos , Testes de Campo Visual/métodos , Campos Visuais , Humanos , Estimulação Luminosa/instrumentação , Testes de Campo Visual/instrumentação , Testes de Campo Visual/tendências
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