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OBJECTIVES: To compare the cost-effectiveness of coronary artery calcium (CAC) score-guided statin therapy criteria and American College of Cardiology/American Heart Association (ACC/AHA) guidelines (10-year pooled cohort equation [PCE] risk ≥ 7.5%) with selection according to Australian guidelines (5-year absolute cardiovascular disease risk [ACVDR] ≥ 10%), for people with family histories of premature coronary artery disease. STUDY DESIGN, SETTING: Markov microsimulation state transition model based on data from the Coronary Artery calcium score: Use to Guide management of Hereditary Coronary Artery Disease (CAUGHT-CAD) trial and transition probabilities derived from published statin prescribing and adherence outcomes and clinical data. PARTICIPANTS: 1083 people with family histories of premature coronary artery disease but no symptomatic cardiovascular disease. MAIN OUTCOME MEASURES: Relative cost-effectiveness over fifteen years, from the perspective of the Australian health care system, compared with usual care (Australian guidelines), assessed as incremental cost-effectiveness ratios (ICERs), with a notional willingness-to-pay threshold of $50 000 per quality-adjusted life-year (QALY) gained. RESULTS: Applying the Australian guidelines, 77 people were eligible for statin therapy (7.1%); with ACVDR 5-year risk ≥ 2% and CAC score > 0, 496 people (46%); with ACVDR 5-year risk ≥ 2% and CAC score ≥ 100, 155 people (14%); and with the ACC/AHA guidelines, 256 people (24%). The ICERs for CAC-guided selection were $33 108 (CAC ≥ 100) and $53 028 per QALY gained (CAC > 0); the ACC/AHA guidelines approach (ICER, $909 241 per QALY gained) was not cost-effective. CAC score-guided selection (CAC ≥ 100) was cost-effective for people with 5-year ACVDR of at least 5%. CONCLUSION: Expanding the number of people at low to intermediate CVD risk eligible for statin therapy should selectively target people with subclinical atherosclerosis identified by CAC screening. This approach can be more cost-effective than simply lowering treatment eligibility thresholds.
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Doenças Cardiovasculares , Doença da Artéria Coronariana , Inibidores de Hidroximetilglutaril-CoA Redutases , Humanos , Austrália , Cálcio/uso terapêutico , Doenças Cardiovasculares/prevenção & controle , Doença da Artéria Coronariana/tratamento farmacológico , Análise Custo-Benefício , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Medição de Risco , Fatores de Risco , Estados UnidosRESUMO
We sought to apply a simple cardiovascular health tool not requiring laboratory tests (the Fuster-BEWAT score, FBS) to predict subclinical atherosclerosis. This study included 2657 young adults (< 40 years of age). In the prognostic group (n = 894, followed for 13 years until aged 40-50 years at follow-up), the primary outcome was presence of carotid plaque measured by carotid ultrasound at follow-up. Of these 894 participants, 86 (9.6%) had unilateral, and 23 participants (2.6%) had bilateral, carotid plaques at follow-up. The baseline FBS was predictive of carotid plaque at follow-up [odds ratio OR = 0.86 (95% CI 0.77-0.96) per 1-SD increase in FBS], similar to prediction from Pooled Cohort Equation [PCE, OR = 0.72 (0.61-0.85) per 1-SD decrease in PCE]. Risk scores at baseline predicted outcomes more strongly than those at follow-up, and did so independently of any changes over 13 years of follow-up. Similar discrimination for predicting carotid plaque after 13 years was found for both baseline FBS [C-statistic = 0.68 (95% CI 0.62-0.74)] and PCE [C-statistic = 0.69 (95% CI 0.63-0.75)]. Application of this FBS prognostic information to a contemporary cohort of 1763 young adults anticipates the future development of plaque in 305 (17.3%), especially in the 1494 participants (85%) with ≤ 2 metrics of ideal health. In conclusions, FBS measured in young adulthood predicted atherosclerosis 13 years later in middle age, independent of score changes over the follow-up period, emphasizing the importance of early damage to vascular health. FBS may be a simple and feasible risk score for engaging low-risk young people with reduction of future cardiovascular risk.
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Aterosclerose , Doenças das Artérias Carótidas , Placa Aterosclerótica , Adulto Jovem , Humanos , Pessoa de Meia-Idade , Adulto , Adolescente , Seguimentos , Austrália/epidemiologia , Aterosclerose/diagnóstico por imagem , Artérias Carótidas/diagnóstico por imagem , Fatores de Risco , Doenças das Artérias Carótidas/diagnóstico por imagem , Espessura Intima-Media CarotídeaRESUMO
Carotid intima-media thickness (cIMT), plaque quantification and coronary artery calcium (CAC) scoring have been suggested to improve risk prediction of cardiovascular disease (CVD), particularly for asymptomatic individuals classified as low-to-intermediate risk. We aimed to compare the predictive value of cIMT, carotid plaque identification, and CAC scoring for identifying sub-clinical atherosclerosis and assessing future risk of CVD in asymptomatic, low-to-intermediate risk individuals. We conducted a comprehensive search of Ovid (Embase and Medline), Cochrane Central Register of Controlled Trials (CENTRAL) and Medline complete (EBSCO health). A total of 30 papers were selected and data were extracted. Comparisons were made according to the cIMT measurement (mean, maximum), carotid plaque evaluation (presence or area), and CAC scoring. CVD event rates, hazard ratios (HR), net reclassification index (NRI), and c-statistic of the markers were compared. There were 27 studies that reported cIMT, 24 reported carotid plaque, and 6 reported CAC scoring. Inclusion of CAC scores yielded the highest HR ranging from 1.45 (95% CI, 1.11-1.88, p = 0.006) to 3.95 (95% CI, 2.97-5.27, p < 0.001), followed by maximum cIMT (HR 1.08; 95% CI, 1.06-1.11, p < 0.001 to 2.58; 95% CI, 1.83-3.62, p < 0.001) and carotid plaque presence (HR 1.21; 95% CI, 0.5-1.2, p = 0.39 to 2.43; 95% CI, 1.7-3.47, p < 0.001). The c-statistic enhanced predictive value by a minimum increase of 0.7. Finally, the NRI ranked higher with CAC (≥11.2%), followed by carotid plaque (≥2%) and cIMT (3%). CAC scoring was superior compared to carotid plaque and cIMT measurements in asymptomatic individuals classified as being at low-to-intermediate risk.
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Aterosclerose , Doenças Cardiovasculares , Doença da Artéria Coronariana , Aterosclerose/diagnóstico por imagem , Espessura Intima-Media Carotídea , Doença da Artéria Coronariana/diagnóstico por imagem , Fatores de Risco de Doenças Cardíacas , Humanos , Incidência , Fatores de RiscoRESUMO
OBJECTIVES: To assess the predictive value of the Australian absolute cardiovascular disease risk (ACVDR) calculator and other assessment tools for identifying Australians with family histories of early onset coronary artery disease (CAD) who have coronary artery calcification. DESIGN, SETTING, PARTICIPANTS: People without known CAD were recruited at seven Australian hospitals, October 2016 - January 2019. Participants were aged 40-70 years, had a family history of early onset CAD, and a 5-year ACVDR of 2-15%. MAIN OUTCOME MEASURES: CT coronary artery calcium score greater than zero (any coronary calcification) or greater than 100 (calcification warranting lipid therapy). RESULTS: 1059 participants were recruited; 477 (45%) had non-zero coronary artery calcium scores (median 5-year ACVDR, 4.8% [IQR, 2.9-7.6%]; median coronary artery calcium score, 41.7 [IQR, 8-124]); 582 (55%) did not (median 5-year ACVDR, 3.2% [IQR, 2.0-4.6%]). Of 151 participants with calcium scores of 100 or more, 116 (77%) were deemed to be at low cardiovascular risk by Australian guidelines, while 14 of 75 participants at intermediate risk (19%) had zero calcium scores. The sensitivity of the ACVDR calculator for identifying people with non-zero calcium scores (area under receiver operator curve [AUC], 0.674) was lower than that of the pooled cohort equation (AUC, 0.711; P < 0.001). ACVDR (10-year)- and Multi-Ethnic Study of Atherosclerosis (MESA)-predicted risk categories concurred for 511 participants (48%); classifications were concordant for 925 participants (87%) when the ACVDR was supplemented by calcium scores. CONCLUSIONS: Coronary artery calcium scoring should be considered as part of the heart health check for patients at intermediate ACVDR risk and with family histories of early onset CAD. Alternative risk calculators may better select such patients for further diagnostic testing and primary prevention therapy. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry, ACTRN 12614001294640; 11 December 2014 (prospective).
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Aterosclerose/epidemiologia , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/epidemiologia , Medição de Risco , Calcificação Vascular/epidemiologia , Adulto , Idoso , Aterosclerose/diagnóstico , Austrália , Cálcio/análise , Angiografia Coronária , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/genética , Vasos Coronários/química , Feminino , Fatores de Risco de Doenças Cardíacas , Humanos , Modelos Lineares , Masculino , Anamnese , Pessoa de Meia-Idade , Análise Multivariada , Valor Preditivo dos Testes , Estudos Prospectivos , Tomografia Computadorizada por Raios X , Calcificação Vascular/diagnósticoRESUMO
OBJECTIVE: Epicardial atherosclerosis and heart failure while distinct clinical entities share common pathophysiological features including endothelial dysfunction and inflammation. Presence of subclinical disease could lead to early diagnosis and intervention in the other. The aim of our study was to assess the association between coronary calcium score (CCS), conventional cardiovascular risk factors, and echocardiographic markers of subclinical left ventricular dysfunction (S-LVD). METHODS: One hundred and fifty-nine participants aged 40-70 years with intermediate risk of coronary artery disease (5-year risk of 2%-15%) were identified. Computed tomography (CT) CCS and 2-D transthoracic echocardiography were performed. Main outcomes included presence of subclinical left ventricular dysfunction defined by reduced average global longitudinal strain, left atrial volume enlargement, and elevated E/e'. RESULTS: Fifteen participants had evidence of subclinical LV dysfunction (8 with systolic dysfunction and 7 with diastolic dysfunction) and 85 participants had CCS > 0. CCS > 0 was present in 10 participants with S-LVD compared to 75 participants without S-LVD (67% vs 53%, P = .47). There was no significant difference between in mean GLS (19.2 vs 19.5, P = .14), E/e' (7.2 vs 7.5 P = .33) in those without or with coronary artery calcium. Elevated CCS was also not associated with a higher tertiles of indexed LV mass (OR 1.15, P = .49) or index left atrial volume (OR 1.15, P = .49). CONCLUSIONS: In an asymptomatic, low-intermediate-risk group, mechanistic processes that lead to atherosclerosis are not directly associated with subclinical LV dysfunction.
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Doença da Artéria Coronariana , Disfunção Ventricular Esquerda , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/diagnóstico por imagem , Diagnóstico Precoce , Ecocardiografia , Átrios do Coração , Humanos , Disfunção Ventricular Esquerda/complicações , Disfunção Ventricular Esquerda/diagnóstico por imagem , Função Ventricular EsquerdaAssuntos
Doenças Cardiovasculares , Doença da Artéria Coronariana , Calcificação Vascular , Cálcio , Doenças Cardiovasculares/epidemiologia , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/epidemiologia , Fatores de Risco de Doenças Cardíacas , Humanos , Medição de Risco , Fatores de Risco , Calcificação Vascular/diagnóstico por imagem , Calcificação Vascular/epidemiologiaRESUMO
ABSTRACT: Trabeculectomy is the gold standard procedure to achieve control of intraocular pressure surgically. However, glaucoma drainage devices have their place in certain refractory glaucomas not amenable to control by the standard trabeculectomy. These devices come with their own set of complications, cognizance of which is critical to anticipate and manage appropriately. With the nonvalved devices, hypotony is one difficult problem to deal with. Several modifications have been described to manage refractory hypotony after tubes. We present here a simple, less invasive surgical technique of secondary ab interno suture stenting to manage tube-related early hypotony.
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BACKGROUND: Anterior vitrectomy is a skill all cataract surgeons should develop and master. Every surgeon will have complications at some point in his/her career. Complication management should be part of the surgical training for all cataract surgeons. Posterior capsular rent does not translate to poor visual outcomes. If managed properly, excellent visual outcomes can be achieved and complications minimized. We aim to simplify the anterior vitrectomy procedure by this video. PURPOSE: This video will serve as a step-by-step practical guide to the intraoperative management of posterior capsular rent by simplifying the anterior vitrectomy procedure. SYNOPSIS: This video will demonstrate how to tackle the dreaded complication of a posterior capsular rent with vitreous disturbance, and achieve optimal postoperative outcomes. HIGHLIGHTS: We demonstrate how a PCR appears, and once identified, how to proceed. In addition, nuances regarding foot positions and different vitrectomy modes are included. Biaxial vitrectomy is explained. Lens placement post-PCR is demonstrated. Furthermore, a brief about postoperative management is included. VIDEO LINK: https://youtu.be/dTo7sMpe8h8.
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Vitrectomia , Humanos , Vitrectomia/métodos , Acuidade Visual , Extração de Catarata/métodosRESUMO
Background: Trabeculectomy is the gold standard filtration surgery for diverting aqueous from anterior chamber to the subconjunctival space. More than the surgery, postoperative follow-ups and management of the blebs play a critical role in the long-term success. This video is aimed at showing the real-world management of blebs postoperatively. Purpose: This video will serve as a practical guide to the postoperative management of trabeculectomy blebs with specific focus on the suture manipulation. Synopsis: This video will demonstrate various suturing techniques of trabeculectomy and their manipulation in the postoperative period. Complications related to each will be discussed. Highlights: We demonstrate how to place and remove, releasable, and fixed sutures. We also address the practical points on why and when to remove the sutures. Suture-related complications and their management have been shown along with practical examples. Video Link: https://youtu.be/2WFQJAPyOvY.
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Cirurgia Filtrante , Trabeculectomia , Humanos , Câmara Anterior/cirurgia , Pressão Intraocular , Complicações Pós-Operatórias/cirurgia , Técnicas de Sutura , Suturas , Trabeculectomia/métodosRESUMO
Microspherophakia is a rare developmental abnormality of the crystalline lens with a myriad of ocular and systemic associations. Glaucoma is a serious complication associated with this disorder. Early identification of the disease, timely visual rehabilitation, and appropriate management of the lens and glaucoma can help us prevent blindness from this condition. Multidisciplinary care with lifelong follow-up is recommended, as this typically affects the younger population. Current treatment protocols for this condition are mainly based on case reports and retrospective studies with shorter follow-up. Due to the rarity of this disease, designing a large randomized controlled trial to identify the merits and demerits of each management strategy is challenging. With cataract, glaucoma, and vitreoretinal specialists, each having their preferred way of managing microspherophakic lenses, we decided to do a comprehensive review of the existing literature to devise an integrated approach toward effective management of these patients. This review will collate all evidence and provide a very practical decision-making tree for its management.
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Glaucoma , Iris , Doenças da Córnea , Ectopia do Cristalino , Glaucoma/etiologia , Humanos , Iris/anormalidades , Ensaios Clínicos Controlados Aleatórios como Assunto , Estudos Retrospectivos , Acuidade VisualRESUMO
BACKGROUND AND AIMS: Coronary artery calcium (CAC) may encourage patients to adhere to primary prevention recommendations. This study sought to evaluate the benefit of a CAC-guided risk-management protocol in those with a family history of premature coronary artery disease (FHCAD). METHODS: In this Australian multi-centre, randomized controlled trial (Coronary Artery Calcium score: Use to Guide management of Hereditary Coronary Artery Disease, CAUGHT-CAD), asymptomatic, statin-native participants at low-intermediate cardiovascular risk with FHCAD underwent CAC assessment. Those with CAC between 1 and 400 were randomized (1:1) to disclosing the CAC result to both patient and physician and commencing atorvastatin (intervention) or blinding the CAC result with risk factor education only (control). The primary endpoint of this sub-study was change in Pooled Cohort Equation (PCE) at 12 months. RESULTS: Of 1088 participants who were scanned, 450 were randomised and 214 in both groups completed 1-year follow-up. At 1 year, PCE-risk decreased by 1.0% (95% CI 0.13 to 1.81) in the CAC-disclosed group and increased by 0.43% (95%CI 0.11-0.75) in the CAC-blinded group. LDL-C decreased in the CAC-disclosed group in both those who continued (1.5 mmol/L; 95% CI 1.36 to 1.74) and discontinued statins (0.62 mmol/L; 95% CI 0.32 to 0.92) but was unchanged in the CAC-blinded group. CONCLUSION: Participants unblinded to their CAC showed reductions in LDL irrespective of statin continuation when compared to controls at 12 months. Improvements in individual risk factors and PCE risk were also noted. CAC assessment may positively influence patients and physicians to improve risk factor control.
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Doenças Cardiovasculares , Doença da Artéria Coronariana , Inibidores de Hidroximetilglutaril-CoA Redutases , Calcificação Vascular , Austrália , Cálcio , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Protocolos Clínicos , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/tratamento farmacológico , Vasos Coronários/diagnóstico por imagem , Fatores de Risco de Doenças Cardíacas , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Estudos Multicêntricos como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto , Medição de Risco , Fatores de Risco , Calcificação Vascular/diagnóstico por imagem , Calcificação Vascular/epidemiologia , Calcificação Vascular/prevenção & controleRESUMO
AIMS: We investigated the effects of exposure to very low levels of particulate matter <2.5 µm (PM2.5) and nitrogen dioxide (NO2) on coronary calcium score (CCS) in asymptomatic adults who are free of coronary artery disease (CAD). METHODS AND RESULTS: This study included 606 asymptomatic adults (49% men, aged 56±7 years) recruited from communities in three states of Australia during 2017-2018. CCS was measured using coronary computed tomography scan at recruitment. Annual PM2.5 and NO2 concentrations were estimated on the year before recruitment using statistical exposure models and assigned to each participant's residential address. Medical history, physical measurements, biochemistry, and sociodemographic and socioeconomic status were also recorded. Median concentrations of PM2.5 and NO2 were 6.9 µg/m3 [interquartile range (IQR) 6.0-7.7)] and 3.1 ppb [IQR 2.2-4.5], respectively. Of the 606 participants, 16% had high CCS (≥100) and 4% had very high CCS (≥400). Exposure to higher PM2.5 (per µg/m3) was significantly associated with greater odds of having high CCS (OR 1.20, 95% CI 1.02-1.43) and very high CCS (OR 1.55, 95% CI 1.05-2.29). Similar associations were observed for NO2 and high CCS (OR 1.14, 95% CI 1.02-1.27) and very high CCS (OR 1.23, 95% CI 1.07-1.51). These findings were robust to adjustment for sociodemographic factors, traditional cardiovascular risk factors, renal function, education, and socio-economic status. CONCLUSIONS: Ambient air pollution even at low concentration was associated with degree of coronary artery calcification among asymptomatic low cardiovascular risk adults, independent of other risk factors. These findings suggest that air pollution is one of the residual risk factors of CAD.
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Poluentes Atmosféricos , Poluição do Ar , Doença da Artéria Coronariana , Adulto , Poluentes Atmosféricos/análise , Poluição do Ar/efeitos adversos , Poluição do Ar/análise , Austrália/epidemiologia , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/epidemiologia , Exposição Ambiental/efeitos adversos , Exposição Ambiental/análise , Feminino , Humanos , MasculinoRESUMO
OBJECTIVES: To assess the cost effectiveness of coronary artery calcium (CAC) compared with traditional risk factor-based prediction alone in those with an family history of premature coronary artery disease (FHCAD). BACKGROUND: The use of CAC scoring to guide primary prevention statin therapy in those with a FHCAD is inconsistently recommended in guidelines, and usually not reimbursed by insurance. METHODS: A microsimulation model was constructed in TreeAge Healthcare Pro using data from 1,083 participants in the CAUGHT-CAD (Coronary Artery Calcium Score: Use to Guide Management of HerediTary Coronary Artery Disease) trial. Outcomes assessed were quality-adjusted life years (QALYs): cost-effectiveness was assessed over a 15-year time horizon from the perspective of the US health care sector using real-world statin prescribing, accounting for the effect of knowledge of subclinical disease on adherence to guideline-directed therapies. Costs were assessed in 2020 USD, with discounting undertaken at 3%. RESULTS: Statins were indicated in 45% of the cohort using the CAC strategy and 27% using American College of Cardiology/American Heart Association (2019) treatment strategies. Compared with applying a statin treatment threshold of 7.5%, the CAC strategy was more costly ($145) and more effective (0.0097 QALY) with an incremental cost-effective ratio (ICER) of $15,014/QALY. CAC ICER was driven by CAC acquisition and statin prescription cost and improved with certain patient subgroups: male, age >60 years, and 10-year risk pooled cohort equation risk ≥7.5%. CAC scanning of low-risk patients (10-year risk <5%) or those 40 to 50 years of age was not cost-effective. CONCLUSIONS: Systematic CAC screening and treatment of those with FHCAD and subclinical disease was more cost-effective than management using statin treatment thresholds, in the US health care system.
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Cálcio , Doença da Artéria Coronariana , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/tratamento farmacológico , Doença da Artéria Coronariana/genética , Análise Custo-Benefício , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estados Unidos/epidemiologiaRESUMO
Mental health laws have traditionally been based on notions of individual rather than collective human rights. This column analyses some of the issues raised by the introduction of legislative provisions promoting the rights of carers. The new Scottish system of "named persons" is outlined, as well as other recent provisions enabling access to information and more involvement in decision-making processes.
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Cuidadores/legislação & jurisprudência , Internação Compulsória de Doente Mental/legislação & jurisprudência , Acesso à Informação/legislação & jurisprudência , Austrália , Tomada de Decisões , HumanosRESUMO
PURPOSE: Neurofibromatosis Type I (NF-1) is a neurocutaneous disease affecting the skin, eye and peripheral nervous system. Congenital glaucoma is a rare association, but can be a prelude to the diagnosis of NF-1 later in life. We report this unusual association in a child and discuss the possible underlying pathophysiologic mechanisms. OBSERVATIONS: A nine year old female child on treatment for glaucoma in the right eye was referred to us for definitive management. Her ocular evaluation was remarkable for reduced visual acuity, megalocornea with buphthalmos, congenital ectropionuveae, Lisch nodules and glaucomatous optic neuropathy in the right eye. Systemic evaluation revealed café-au-lait spots on the chest and back. A diagnosis of Neurofibromatosis Type I with congenital ectropion uveae and glaucoma was arrived at and neuroimaging failed to detect any optic pathway gliomas. In view of advanced glaucomatous neuropathy, a conservative therapy was recommended. CONCLUSIONAND IMPORTANCE: Unilateral congenital glaucomas with ectropion uveae are likely to be associated with NF-1. These children should be monitored closely for glaucoma progression and may require neurological evaluation including imaging studies to exclude optic pathway gliomas.
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Purpose: To assess the quality and accuracy of glaucoma referrals from ophthalmologist. Methods: Retrospective review of patients chart with referral letter to a tertiary glaucoma center between January and December 2017. Patients aged <16 years, lens-induced glaucoma, uveitic glaucoma, and glaucoma following retinal and corneal surgery were excluded. Results: A total of 184 patients referred by 55 ophthalmologists were included. Mean patient age (SD) was 57.8 ± 14 years. Intraocular pressure was not documented in the referral letter in 113 (61%) patients, gonioscopy in 174 (95%) patients, disc findings in 149 (81%) patients, and visual fields in 175 (95%) patients. Thirteen (37%) of the 35 patients referred as open angle glaucoma were found to have angle closure glaucoma. Pseudoexfoliation glaucoma was diagnosed in 29 (16%) patients, of which 18 were missed by the referring ophthalmologist. Conclusion: In our study >90% of referral letter did not have the essential parameters. A standard template for glaucoma referral is suggested, which will help the patient to get better transfer of care.