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1.
Eye (Lond) ; 37(13): 2685-2692, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-36658430

RESUMO

OBJECTIVES: To quantify the impact of dry eye disease (DED) on health and vision related quality of life (HR-QOL, VR-QOL) in patients with Primary Sjögren's Syndrome (pSS). METHODS: Thirty-four participants with a confirmed diagnosis of pSS as per the 2016 ACR EULAR criteria participated. Main outcome measures included ocular surface parameters and HR-QOL and VR-QOL questionnaires. Clinical examination included visual acuity, Schirmer I testing, ocular surface staining (OSS) and measurement of tear film breakup time. The questionnaires included Ocular Surface Disease Index, National Eye Institute Visual Function Questionnaire-25, Short Form-36 (SF-36) and EULAR Sjogren's Syndrome Patient Reported Index. RESULTS: Despite the majority of participants (28 female, 6 male, mean age 61.3 years) having attained LogMAR 0.3 or better visual acuity, participants scored low on VR-QOL measures, representing DED related fluctuation in functional vision. All participants suffered from moderate to severe DED. OSS did not correlate with DED symptoms or QOL parameters. Lubricant usage and symptom severity had a statistically moderate to strong negative correlation with VR-QOL and HR-QOL. This was most evident in relation to physical and physiological wellbeing. Compared with normative data, participants had a lower HR-QOL in all scales of the SF-36 ((MD = 9.91 ± 5.16); t(7) = 5.43, p = 0.001). CONCLUSIONS: Participants with pSS have a lower perceived QOL especially in relation to physical and mental wellbeing, correlating to severity of DED symptoms and treatment burden. Clinical signs do not align with symptoms. Therefore, clinicians should remain cognisant, adjusting treatment in accordance with patient reported perceptions.


Assuntos
Síndromes do Olho Seco , Síndrome de Sjogren , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Qualidade de Vida , Estudos Prospectivos , Síndromes do Olho Seco/etiologia , Síndromes do Olho Seco/diagnóstico , Visão Ocular , Inquéritos e Questionários
3.
Sci Rep ; 12(1): 18761, 2022 11 05.
Artigo em Inglês | MEDLINE | ID: mdl-36335260

RESUMO

Those with underlying autoimmune conditions were met with unparalleled challenges and were disproportionately affected by the COVID-19 pandemic. As such, we aimed to measure the impact of the pandemic on symptoms and the health and vision related quality of life (HR-QoL, VR-QoL) in patients with Primary Sjögren's Syndrome (pSS). Nineteen (55.9%) participants returned questionnaires for analysis, (17 female and 2 male, 61.6 years ± 9.9). There was no significant change in participants HR-QoL or VR-QoL, indicating that those with pSS remained resilient with regard to their physical and mental health throughout the pandemic. Furthermore, QoL was maintained despite 73.7% of participants having had outpatient appointments cancelled, delayed or rescheduled. Participants reported a lower QoL and feeling tenser in the COV19-QoL (3.3 ± 1.4 and 3.2 ± 1.3) representing feelings of apprehension and stress felt amongst the general population since the pandemic. Overall, and in spite of the concern caused by the COVID-19 pandemic for patients with autoimmune diseases, the health and well-being of patients with pSS remained stable. These findings strongly support the use of validated HR and VR-QoL questionnaires as an adjunct to the telemedicine consultation when assessing patients with pSS, offering an alternative to face-to-face consultations in post-pandemic era.


Assuntos
COVID-19 , Síndrome de Sjogren , Humanos , Masculino , Feminino , Qualidade de Vida/psicologia , Síndrome de Sjogren/diagnóstico , Pandemias , Inquéritos e Questionários
4.
Eye (Lond) ; 36(7): 1368-1372, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-34172947

RESUMO

BACKGROUND: To describe the clinical presentation, burden and antimicrobial resistance of Methicillin-Resistant Staphylococcus aureus (MRSA) eye infections and to recommend a streamlined protocol for the management of ocular MRSA colonisation detected by pre-operative screening. METHODS: A retrospective review of all ocular samples which resulted in the isolation of MRSA between 1st of January 2013 and 31st of December 2019 at the Royal Victoria Eye and Ear Hospital. RESULTS: A total of 185 samples taken from the ocular surface were MRSA positive. The majority were MRSA colonisation of the ocular surface obtained as part of an MRSA screen (139/6955 patients screened; 2%). Forty-six represented MRSA infections (46/7904 eye samples; 0.58%), most occurring in older patients the majority of whom had known local or systemic risk factors for colonisation. The most common presentation was conjunctivitis (n = 24), followed by pre-septal cellulitis (n = 9). MRSA infections with the poorest clinical outcomes and the longest inpatient stay, were keratitis (n = 6) and post-operative endophthalmitis (n = 2). Our study demonstrated over 60% resistance to azithromycin, fusidic acid and ciprofloxacin, although resistance to chloramphenicol was uncommon. CONCLUSION: This study demonstrates that MRSA infections of the eye most commonly manifest as a mild infection, typically conjunctivitis, and are generally non-sight threatening. The majority of presentations occur in the context of known MRSA risk factors and in an older populous. Resistance to chloramphenicol is rare, thus it remains an excellent first line treatment. Its use to eradicate MRSA from the ocular surface is proposed to streamline the delivery of surgical eye care.


Assuntos
Conjuntivite , Infecções Oculares Bacterianas , Staphylococcus aureus Resistente à Meticilina , Infecções Estafilocócicas , Idoso , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Cloranfenicol/uso terapêutico , Conjuntivite/tratamento farmacológico , Infecções Oculares Bacterianas/tratamento farmacológico , Infecções Oculares Bacterianas/epidemiologia , Humanos , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/epidemiologia
6.
Exp Eye Res ; 173: 121-128, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29763582

RESUMO

BACKGROUND: Anterior uveitis (AU) is characterised by infiltration of immune cells into the anterior chamber of the eye. Dendritic cells (DC) are professional antigen presenting cells that initiate and promote inflammation. This study aims to characterise DC in AU and to examine the effects of aqueous humor (AqH) on DC maturation and function. METHODS: The frequency and phenotype of AU and healthy control (HC) circulating DC was examined. AU and HC AqH was immunostained and assessed by flow cytometry. The effect of AU and HC AqH on DC activation and maturation was examined and subsequent effects on CD4+ T cell proliferation assessed. RESULTS: AU peripheral blood demonstrated decreased circulating myeloid and plasmacytoid DC. Within AU AqH, three populations of CD45+ cells were significantly enriched compared to HC; DCs (CD11c+ HLA-DR+), neutrophils (CD15+ CD11c+) and T cells (CD4+ and CD8+). A significant increase in IFNγ, IL8 and IL6 was observed in the AU AqH, which was also significantly higher than that of paired serum. AU AqH induced expression of CD40 and CD80 on DC, which resulted in increased T cell proliferation and the production of GM-CSF, IFNγ and TNFα. CONCLUSION: DC are enriched at the site of inflammation in AU. Our data demonstrate an increase in inflammatory mediators in the AU inflamed microenvironment. AU AqH can activate DC, leading to subsequent proliferation and activation of effector T cells. Thus, the AU microenvironment contributes to immune cell responses and intraocular inflammation.


Assuntos
Humor Aquoso/metabolismo , Citocinas/metabolismo , Células Dendríticas/fisiologia , Uveíte Anterior/imunologia , Adulto , Células Apresentadoras de Antígenos/metabolismo , Antígenos CD/imunologia , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD8-Positivos/imunologia , Infecções Oculares/imunologia , Infecções Oculares/patologia , Feminino , Citometria de Fluxo , Humanos , Ativação Linfocitária/fisiologia , Masculino , Uveíte Anterior/patologia
7.
Eye (Lond) ; 31(10): 1427-1434, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28524886

RESUMO

PurposeFungal keratitis is relatively rare in temperate climates with only one previous population-based study, which reported a minimum annual incidence of 0.32 per million population in the United Kingdom. We performed a nationwide study in the Republic of Ireland of cases over a 6-year period to establish the incidence, risk factors, treatment, and outcomes of fungal keratitis.Patients and methodsAll corneal scraping specimens positive for fungal species over a 6-year period were identified at the microbiology departments of the seven main ophthalmology units in the Republic of Ireland. Census data was used to establish national minimum annual incidence.ResultsForty-two eyes were treated for confirmed fungal keratitis during the 6-year period. This resulted in a minimum incidence of 1.53 cases per million population per year. Twenty-eight of 42 cases (67%) were due to filamentary fungi, with the most common species being Aspergillus. Pre-existing ocular surface disease was the most common risk factor constituting 42.9%; 26.2% underwent keratoplasty. No eyes underwent evisceration. Two eyes resulted in a level of vision of no perception of light. The mean LogMAR acuity in the remainder of cases was 0.89 with a range from -0.10 to 4.00.ConclusionThis study demonstrates a much higher minimum annual incidence than previously reported. The causative organism is highly related to risk factor. The range of visual outcomes remains broad in all subgroups. The wide range of outcomes and treatments used highlights the need for better evidence-based guidelines for fungal keratitis.


Assuntos
Córnea/microbiologia , Infecções Oculares Fúngicas/epidemiologia , Ceratite/epidemiologia , Medição de Risco , Adulto , Idoso , Idoso de 80 Anos ou mais , Infecções Oculares Fúngicas/microbiologia , Seguimentos , Fungos/isolamento & purificação , Humanos , Incidência , Irlanda/epidemiologia , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Adulto Jovem
8.
Artigo em Inglês | MEDLINE | ID: mdl-27255639

RESUMO

Astrocytes play a vital role in brain lipid metabolism; however the impact of the phenotypic shift in astrocytes to a reactive state on arachidonic acid metabolism is unknown. Therefore, we determined the impact of dibutyryl-cAMP (dBcAMP) treatment on radiolabeled arachidonic acid ([1-(14)C]20:4n-6) and palmitic acid ([1-(14)C]16:0) uptake and metabolism in primary cultured murine cortical astrocytes. In dBcAMP treated astrocytes, total [1-(14)C]20:4n-6 uptake was increased 1.9-fold compared to control, while total [1-(14)C]16:0 uptake was unaffected. Gene expression of long-chain acyl-CoA synthetases (Acsl), acyl-CoA hydrolase (Acot7), fatty acid binding protein(s) (Fabp) and alpha-synuclein (Snca) were determined using qRT-PCR. dBcAMP treatment increased expression of Acsl3 (4.8-fold) and Acsl4 (1.3-fold), which preferentially use [1-(14)C]20:4n-6 and are highly expressed in astrocytes, consistent with the increase in [1-(14)C]20:4n-6 uptake. However, expression of Fabp5 and Fabp7 were significantly reduced by 25% and 45%, respectively. Acot7 (20%) was also reduced, suggesting dBcAMP treatment favors acyl-CoA formation. dBcAMP treatment enhanced [1-(14)C]20:4n-6 (2.2-fold) and [1-(14)C]16:0 (1.6-fold) esterification into total phospholipids, but the greater esterification of [1-(14)C]20:4n-6 is consistent with the observed uptake through increased Acsl, but not Fabp expression. Although total [1-(14)C]16:0 uptake was not affected, there was a dramatic decrease in [1-(14)C]16:0 in the free fatty acid pool as esterification into the phospholipid pool was increased, which is consistent with the increase in Acsl3 and Acsl4 expression. In summary, our data demonstrates that dBcAMP treatment increases [1-(14)C]20:4n-6 uptake in astrocytes and this increase appears to be due to increased expression of Acsl3 and Acsl4 coupled with a reduction in Acot7 expression.


Assuntos
Ácido Araquidônico/análise , Astrócitos/química , Bucladesina/farmacologia , Ácido Palmítico/análise , Animais , Ácido Araquidônico/química , Astrócitos/citologia , Astrócitos/efeitos dos fármacos , Células Cultivadas , Proteínas de Ligação a Ácido Graxo/metabolismo , Regulação da Expressão Gênica/efeitos dos fármacos , Redes Reguladoras de Genes/efeitos dos fármacos , Metabolismo dos Lipídeos/efeitos dos fármacos , Camundongos , Ácido Palmítico/química
9.
Ir J Med Sci ; 184(2): 395-8, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24846749

RESUMO

BACKGROUND: Postoperative endophthalmitis (PE) is a rare complication of cataract surgery, but carries a significant risk of blindness. The European Society of Cataract and Refractive Surgeons published a landmark study in 2007 that revealed the use of intracameral cefuroxime as prophylaxis against endophthalmitis reduced its incidence by fivefold. Since the publication of these results, the use of intracameral cefuroxime in cataract surgery has become a standard practice in many institutions, including our own. AIM: To identify the incidence rate of PE among patients undergoing cataract surgery over the 4-year period following the introduction of prophylactic intracameral cefuroxime for cataract surgery. METHODS: A retrospective case note review of all cases of postoperative endophthalmitis that occurred between 2007 and 2011 was performed. Our results were compared with an earlier report on PE incidence rates from our institution that was conducted prior to the introduction of intracameral cefuroxime and published in 2001. RESULTS: There were five reported cases of endophthalmitis from 2007 to 2011 from a total of 8,239 cataract procedures, giving an incidence rate of 0.06%. This compares with an incidence rate of 0.49% in the earlier study prior to the introduction of intracameral cefuroxime and represents an eightfold reduction in the incidence of PE at our hospital. Of the five cases, three were confirmed on culture and sensitivity (two of which were due to Coagulase negative staphylococci and one due to Pseudomonas aeruginosa). CONCLUSION: The incidence of postoperative endophthalmitis has reduced by approximately eightfold since the introduction of intracameral cefuroxime following cataract surgery at our hospital in 2007. This study strongly supports the use of intracameral cefuroxime as prophylaxis against endophthalmitis in all cataract surgical cases.


Assuntos
Antibacterianos/administração & dosagem , Antibioticoprofilaxia/métodos , Cefuroxima/administração & dosagem , Endoftalmite/epidemiologia , Endoftalmite/prevenção & controle , Câmara Anterior , Extração de Catarata/efeitos adversos , Endoftalmite/microbiologia , Humanos , Incidência , Injeções Intraoculares , Irlanda/epidemiologia , Estudos Retrospectivos
10.
Eye (Lond) ; 27(4): 474-9, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23306732

RESUMO

PURPOSE: Globally, 153 million people are visually impaired from uncorrected refractive error. The aim of this research was to verify a method whereby autorefractors could be used by non-specialist health-workers to prescribe spectacles, which used a small stock of preformed lenses that fit frames with standardised apertures. These spectacles were named S-Glasses (Smart Glasses). PATIENTS AND METHODS: This prospective, single-cohort exploratory study enrolled 53 patients with 94 eligible eyes having uncorrected vision of 6/18 or worse. Eyes with best-corrected vision worse than 6/12 were excluded. An autorefractor was used to obtain refractions, which were adjusted so that eyes with astigmatism less than 2.00 dioptres (D) received spherical equivalent lenses, and eyes with more astigmatism received toric lenses with a 2.50 D cylindrical element set at one of four meridians. The primary outcome was to compare S-Glasses vision with the WHO definition of visual impairment (6/18). Where astigmatism was 2.00 D or greater, comparison with spherical equivalent was made. Mixed-model analysis with repeated effect was used to account for possible correlation between the vision of fellow eyes of the same individual. RESULTS: S-Glasses corrected 100% of eyes with astigmatism less than 3.00 D and 69% of eyes with astigmatism of 3.00 D or greater. Spherical equivalent lenses corrected 25% of eyes with astigmatism of 2.00-2.99 D and 11% with astigmatism of at least 3.00 D. DISCUSSION: S-Glasses could be beneficial to resource-poor populations without trained refractionists. This novel approach, using approximate toric lenses, results in superior vision for astigmatic patients compared with the practice of providing spherical equivalent alone.


Assuntos
Astigmatismo/reabilitação , Óculos , Prescrições , Idoso , Idoso de 80 Anos ou mais , Óculos/economia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Prescrições/economia , Estudos Prospectivos , Acuidade Visual
11.
Dis Esophagus ; 26(7): 708-15, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23350713

RESUMO

Trimodality therapy with neoadjuvant chemoradiation followed by surgery significantly improves the survival of locally advanced (clinical stage IIA-III) esophageal cancer patients compared to treatment with surgery alone. This has resulted in an increased use of neoadjuvant therapy in recent years, yet little is known regarding how this increase has impacted the utilization of surgery in the treatment of locally advanced disease. Although previous reports of experimental protocols suggest that 90-95% of patients complete trimodality therapy including a surgical resection, trimodality therapy completion among adenocarcinoma patients eligible for curative resection has not been evaluated in a nonprotocol setting. We sought to (i) assess the completion of trimodality therapy among locally advanced esophageal adenocarcinoma patients; (ii) characterize the reasons for avoiding surgery; and (iii) identify factors associated with failure to complete trimodality therapy. We identified 296 patients with locally advanced esophageal adenocarcinoma eligible for trimodality therapy at our institution. All patients were evaluated in a multidisciplinary setting and considered eligible for curative resection after initial staging and physiologic assessment. Multivariable logistic regression was used to identify factors associated with failure to complete trimodality therapy. Of 296 trimodality-eligible patients, 33% (97/296) did not complete trimodality therapy. Reasons for not undergoing surgery included patient choice (27.8%, 27/97), distant progression of disease during chemoradiation (23.7%, 23/97), and physician preference for surveillance (23.7%, 23/97). In addition, 17.5% (17/97) of patients had physical deterioration in performance status, and treatment-related deaths occurred in 7.2% (7/97) prior to surgery. In the total study population (n = 296), multivariable logistic regression identified older age (≥70 years: odds ratio [OR] = 6.611, 95% confidence interval [CI]: 2.900-15.071), pretreatment standard uptake value (6.8-10.1: OR = 2.393, 95% CI: 1.050-5.455; ≥15.8: OR = 3.623, 95% CI: 1.604-8.186), and a radiation dose of 50.4 Gy (OR = 5.312, 95% CI: 2.365-11.929) as being significantly associated with failure to complete trimodality therapy. Among the subgroup of patients that successfully completed chemoradiation (n = 266), older patients (≥70 years: OR = 9.606, 95% CI: 3.637-25.372), those with a comorbidity score of 2 or higher (OR = 4.059, 95% CI: 1.257-13.103), and those that received a radiation dose of 50.4 Gy (OR = 4.878, 95% CI: 1.974-12.054) were at a significantly higher risk of not completing trimodality therapy. Trimodality therapy completion among patients with locally advanced esophageal adenocarcinoma in a nonprotocol setting is considerably lower than what has previously been reported in clinical trials. Our findings suggest that a selective approach to surgery is commonly utilized in clinical practice. Trimodality-eligible patients that are older and have a higher comorbidity score are at risk for not completing trimodality therapy.


Assuntos
Adenocarcinoma/cirurgia , Terapia Combinada/métodos , Procedimentos Cirúrgicos do Sistema Digestório/estatística & dados numéricos , Neoplasias Esofágicas/cirurgia , Adenocarcinoma/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Quimiorradioterapia , Estudos de Coortes , Neoplasias Esofágicas/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Estudos Retrospectivos
12.
Med Device Technol ; 17(8): 36-8, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17153372

RESUMO

Form measurement is an increasingly critical characteristic for medical implants. The techniques available for doing this are outlined together with some of the latest developments in this area, including noncontact form measurement.


Assuntos
Análise de Falha de Equipamento/instrumentação , Análise de Falha de Equipamento/métodos , Próteses e Implantes
13.
Br J Ophthalmol ; 89(9): 1161-5, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16113373

RESUMO

AIMS: To assess visual function, vision related quality of life (VR-QOL), and general health related quality of life (HR-QOL) in intermediate uveitis (IU). METHODS: VR-QOL and HR-QOL were evaluated in 42 patients with IU using the VCM1 and SF-36 questionnaires, respectively. LogMAR visual acuity (VA), Pelli-Robson contrast sensitivity (CS), Farnsworth-Munsell 100 hue colour vision (CV), and Estermann visual field (VF) were recorded monocularly and binocularly. RESULTS: Median (interquartile range) visual acuity (VA) and CS of 72 affected eyes were 0.1 (0.015-0.3) and 1.55 (1.35-1.65), respectively. 9.5% of patients had a VCM1 score of more than 2.0, indicating "more than a little" concern over vision. Worse eye VA (p=0.045) and CS (p=0.042) were predictive of a VCM1 score of more than 2.0 independently of age, sex, uveitis duration, laterality and activity, systemic uveitis therapy, and medical co-morbidity. The physical and mental component summary scores of the SF-36 were significantly worse in those who reported significant impairment of vision on the VCM1 than those who did not. CONCLUSIONS: The majority of patients with IU maintain good visual function and quality of life. VR-QOL impairment in IU correlates with vision in the worse eye and is associated with impaired HR-QOL.


Assuntos
Qualidade de Vida , Uveíte Intermediária/psicologia , Adulto , Percepção de Cores , Sensibilidades de Contraste , Feminino , Nível de Saúde , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Perfil de Impacto da Doença , Uveíte Intermediária/fisiopatologia , Acuidade Visual , Campos Visuais
14.
Br J Ophthalmol ; 88(3): 412-6, 2004 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-14977779

RESUMO

AIM: To investigate peripheral blood lymphocyte phenotype in patients with intermediate uveitis using CD69, chemokine receptor, and cytokine expression. METHODS: Peripheral blood lymphocytes of 18 patients with idiopathic intermediate uveitis and 6 patients with presumed sarcoid intermediate uveitis were evaluated for CD4(+) T cell expression of CD69, CCR4, CCR5, CXCR3 and the intracellular cytokines IFNgamma, TNFalpha, and interleukin (IL)-10 by flow cytometry, and for IL-2, IL-4, IL-5, IL-10, IFNgamma, and TNFalpha production following unstimulated and activated culture using cytokine bead array and compared with healthy control subjects. RESULTS: The expression of CD69 and TNFalpha by peripheral blood CD4(+) lymphocytes of patients with idiopathic intermediate uveitis and presumed sarcoid intermediate uveitis was significantly higher than control subjects (p = 0.002 and p<0.05, respectively). The ratios of the concentrations of IL-2:IL-5 and IFNgamma:IL-5 in supernatants of activated peripheral blood lymphocyte cultures were significantly higher in patients with presumed sarcoid intermediate uveitis than control subjects. CONCLUSIONS: This study implicates TNFalpha in the pathogenesis of intermediate uveitis, highlighting the potential role of anti-TNF treatments for this disease. Studies of Th1:Th2 cytokine ratios suggested polarisation of the immune response towards Th1 in presumed sarcoid intermediate uveitis despite clinically quiescent systemic disease.


Assuntos
Ativação Linfocitária , Células Th1/imunologia , Uveíte/imunologia , Adolescente , Adulto , Antígenos CD/análise , Antígenos de Diferenciação de Linfócitos T/análise , Biomarcadores/análise , Estudos de Casos e Controles , Feminino , Humanos , Lectinas Tipo C , Masculino , Pessoa de Meia-Idade , Fenótipo , Receptores CCR4 , Receptores CCR5/análise , Receptores CXCR3 , Receptores de Quimiocinas/análise , Células Th1/citologia , Células Th2/imunologia , Fator de Necrose Tumoral alfa/análise
15.
Br J Ophthalmol ; 87(10): 1252-7, 2003 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-14507761

RESUMO

BACKGROUND/AIMS: Transscleral diode laser cyclophotocoagulation ("cyclodiode") is widely used to treat refractory glaucoma. The main aims of this study were to investigate the dose-response relation of cyclodiode and to evaluate possible predictive factors that would help establish optimum treatment parameters. METHODS: A retrospective analysis of the case notes of 263 eyes of 238 consecutive patients who underwent transscleral diode laser cyclophotocoagulation at two centres was undertaken. RESULTS: Mean intraocular pressure (IOP) decreased significantly from 40.7 mm Hg (SD 13.7) before cyclodiode therapy to 17.7 mm Hg (SD 10.9) post-treatment, a reduction of 52.6% (p = 0.0001). Following cyclodiode, 89% of patients achieved an IOP of less than 22 mm Hg or a greater than 30% drop in IOP. Hypotony occurred in 9.5% of patients, 76% of whom had neovascular glaucoma. A linear dose relation response was found for the 122 eyes with neovascular glaucoma (p = 0.001) but not for the group as a whole. Treatment failure was associated with male sex (multivariate regression analysis, p = 0.008) and low mean energy per treatment session (univariate analysis alone, p = 0.016). High pretreatment IOP (p = 0.031) and high mean energy per treatment episode (p = 0.001) appeared to be associated with the occurrence of hypotony, although multivariate analysis did not support this finding. CONCLUSION: Cyclodiode therapy is highly effective but there is a significant risk of hypotony, which may be reduced by applying lower energy in cases of very high pretreatment IOP and in neovascular glaucoma. The dose-response association remains unpredictable, although a linear relation was found for neovascular glaucoma.


Assuntos
Glaucoma/cirurgia , Fotocoagulação a Laser/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Doença Crônica , Relação Dose-Resposta à Radiação , Feminino , Glaucoma/fisiopatologia , Humanos , Pressão Intraocular/fisiologia , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Valor Preditivo dos Testes , Análise de Regressão , Resultado do Tratamento , Acuidade Visual
16.
Genet Med ; 3(3): 181-6, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11388758

RESUMO

PURPOSE: Population-based surveillance of children aged 3-10 years from metropolitan Atlanta was used to determine if stroke-related neurological damage in children with sickle cell disease (SCD) is associated with developmental disabilities (DD). METHODS: School and medical records were reviewed annually to identify eligible children. Observed-to-expected ratios, P values, and population attributable fractions were calculated. RESULTS: Children with SCD had increased risk for DD (O/E = 3.2, P < 0.0001), particularly mental retardation (O/E = 2.7, P = 0.0005) and cerebral palsy (O/E = 10.8, P < 0.0001). This risk was confined to DD associated with stroke (O/E = 130, P < 0.0001; for DD without stroke: O/E = 1.3, P = 0.23). CONCLUSIONS: Children with SCD have increased risk for DD associated with stroke; thus, aggressive interventions are needed to prevent stroke in these children.


Assuntos
Anemia Falciforme/complicações , Deficiências do Desenvolvimento/etiologia , Anemia Falciforme/genética , População Negra , Criança , Pré-Escolar , Deficiências do Desenvolvimento/genética , Feminino , Genética Populacional , Humanos , Deficiência Intelectual/etiologia , Deficiência Intelectual/genética , Masculino , Fatores de Risco
17.
CMAJ ; 164(11): 1567-72, 2001 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-11402794

RESUMO

BACKGROUND: Abuse during pregnancy is considered to be a potentially modifiable risk factor for low birth weight (LBW). We conducted a systematic review and meta-analysis to determine the strength of association between physical, sexual or emotional abuse during pregnancy and LBW. METHODS: We selected papers for review from an electronic search of MEDLINE (1966-1999), CINAHL (1982-1997) and the Cochrane Library. We retrieved articles using the following MeSH headings and keywords: "infant low birth weight," "fetus," "perinatal care," "pregnancy," "prenatal care," "infant mortality," "violence," "battered women," "spouse abuse," "infant morbidity," "antenatal" and "neonatal." When necessary, we contacted authors to obtain data that were not included in the published material. We analyzed the methodological quality of each eligible study and selected those of the highest quality for meta-analysis. RESULTS: We reviewed 14 studies, of which 8 were selected for meta-analysis. Using a fixed-effects model, we found that women who reported physical, sexual or emotional abuse during pregnancy were more likely than nonabused women to give birth to a baby with LBW (odds ratio 1.4, 95% confidence interval 1.1-1.8). INTERPRETATION: Abuse may be part of a complex interaction of factors that contribute to LBW.


Assuntos
Violência Doméstica/estatística & dados numéricos , Recém-Nascido de Baixo Peso , Feminino , Humanos , Recém-Nascido , Razão de Chances , Gravidez , Resultado da Gravidez , Fatores de Risco
18.
Epilepsia ; 40(6): 748-51, 1999 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10368073

RESUMO

PURPOSE: To determine the population-based epidemiology of infantile spasms (IS) among Atlanta children. METHODS: By using data from a cross-sectional, population-based surveillance system that included 21 EEG laboratories, we identified children born in 1975-1977 in metropolitan Atlanta with IS. Cumulative incidence up to age 2 years was estimated from the number of children with IS born in the study area in 1975-1977, and age-specific prevalence was calculated from the number of children previously diagnosed with IS who lived in the study area at age 10 years. Data regarding coexisting disabilities were available from the surveillance system for developmental disabilities. RESULTS: The cumulative incidence of IS was 2.9/10,000 live births; half of the children with IS had cryptogenic IS. The age-specific prevalence of IS was 2.0/10,000 among 10-year-old children. Eighty-three percent of 10-year-old children with a history of IS had mental retardation (MR, IQ < or =70); 56% of children with a history of IS had profound MR (IQ <20). Developmental outcome did not differ between the children with cryptogenic IS and those with symptomatic IS. Among the 10-year-old children with profound MR who were living in Atlanta at age 10 years, 12% had a history of IS. Fifty percent of children with IS developed Lennox-Gastaut syndrome (LGS) before age 11 years. CONCLUSIONS: The syndrome of IS is rare in the general population, yet a significant percentage of all children with profound MR and severe childhood epilepsy syndromes in the general population have a history of IS.


Assuntos
Espasmos Infantis/epidemiologia , Fatores Etários , Paralisia Cerebral/diagnóstico , Paralisia Cerebral/epidemiologia , Criança , Pré-Escolar , Comorbidade , Estudos Transversais , Feminino , Georgia/epidemiologia , Humanos , Incidência , Lactente , Deficiência Intelectual/diagnóstico , Deficiência Intelectual/epidemiologia , Masculino , Vigilância da População , Prevalência , Espasmos Infantis/diagnóstico
19.
Obstet Gynecol ; 92(2): 187-92, 1998 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-9699749

RESUMO

OBJECTIVE: To examine trends in alcohol use among pregnant women in the United States and to characterize pregnant women who use alcohol, with an emphasis on frequent use (at least five drinks per occasion or at least seven drinks per week). METHODS: We used the Behavioral Risk Factor Surveillance System data from 1988 through 1995 to obtain the percentage of pregnant women who used alcohol. We used multiple logistic models to identify subgroups of pregnant women who are at increased risk for alcohol use. RESULTS: Overall, 14.6% (869 of 5983) of pregnant women consumed alcohol and 2.1% (133 of 5983) consumed alcohol frequently. Among pregnant women, alcohol use decreased from 22.5% (95% confidence interval [CI] 20.8, 23.9) in 1988 to 9.5% (95% CI 7.9, 11.8) in 1992 and then increased to 15.3% (95% CI 13.1, 17.2) by 1995. Among pregnant women, frequent alcohol use decreased from 3.9% (95% CI 2.4, 5.2) in 1988 to 0.9% (95% CI 0.4, 1.6) in 1991 and then increased to 3.5% (95% CI 2.0, 5.1) by 1995. Pregnant women who were at high risk for alcohol use were college educated, unmarried, employed, or students, had annual household incomes of more than $50,000, or were smokers. Pregnant women who were at high risk for frequent alcohol use were more likely to be unmarried, or smokers. CONCLUSION: The increasing prevalence of alcohol use among pregnant women calls for increased ascertainment of alcohol use among preconceptional and pregnant women. Brief interventions by clinicians, increased referral to alcohol treatment programs, and increased use of contraception by women of reproductive age who are problem drinkers should be considered as means of preventing alcohol-exposed pregnancies.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Adolescente , Adulto , Feminino , Humanos , Modelos Logísticos , Gravidez , Prevalência , Estados Unidos/epidemiologia
20.
Dev Med Child Neurol ; 39(3): 142-9, 1997 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9112961

RESUMO

This report describes biomedical causes of mental retardation (MR) among school-age children and associated medical conditions in children for whom no cause was reported. This study involved 715, 10-year-old children with MR (intelligence quotient [IQ] 70 or less) born between 1975 and 1977. We determined biomedical causes of MR using a hierarchical approach based on the timing of the event (i.e. prenatal, perinatal, or postneonatal). Among children with no identified biomedical cause the occurrence of associated medical conditions was examined. No reported biomedical cause could be found in 78% of children with MR (87% mild, IQ 50 to 70; 57% severe, IQ < 50). Prenatal causes were present in 12%, perinatal causes in 6%, and postneonatal causes in 4%. On the basis of these findings it was concluded that intensive use of public health prevention strategies can reduce the number of children who receive a diagnosis of MR.


Assuntos
Deficiência Intelectual/epidemiologia , Deficiência Intelectual/etiologia , Criança , Pré-Escolar , Feminino , Georgia , Humanos , Testes de Inteligência , Masculino
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