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1.
Ophthalmologie ; 120(3): 294-300, 2023 Mar.
Artículo en Alemán | MEDLINE | ID: mdl-36127450

RESUMEN

Intravitreal injection of anti-vascular endothelial growth factor (VEGF) is the standard treatment for patients with neovascular age-related macular degeneration (nAMD). In addition to the approved substances ranibizumab (Lucentis®, Novartis) and aflibercept (Eylea®, Bayer), bevacizumab (Avastin®, Roche) is also available. Furthermore, brolucizumab (Beovu®, Novartis) has been approved and has been available in Germany since April 2020. The multicenter, noninterventional prospective BLUE SKY study investigates brolucizumab treatment with different schemes in 600 treatment-naive and pretreated nAMD patients in routine clinical practice over a 24-month period. Besides general patient data, visual acuity and treatment data will be documented. Fluorescein angiography, fundus photography, spectral domain optical coherence tomography and swept-source optical coherence tomography angiography will be performed and analyzed by reading centers. The focus of the analysis will be on the intraretinal and subretinal fluid distribution as well as morphological MNV changes and injection frequency. Also, safety and adverse drug effects of brolucizumab, with a specific focus on inflammatory complications, particularly retinal (occlusive) vasculitis will be evaluated.


Asunto(s)
Degeneración Macular Húmeda , Estudios Prospectivos , Degeneración Macular Húmeda/tratamiento farmacológico , Angiografía con Fluoresceína , Agudeza Visual , Humanos , Inhibidores de la Angiogénesis/uso terapéutico
2.
Exp Eye Res ; 175: 166-172, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-29908884

RESUMEN

Aflibercept appears to accumulate in systemic circulation following intravitreal injections in therapy of neovascular age-related macular degeneration. This gives raise to the question of whether aflibercept affects platelets and their function such as activation and aggregation, which are substantial in the pathogenesis of an arterial thromboembolic event (ATE). In order to determine the effect of aflibercept in platelet activation, platelets from healthy volunteers were treated with aflibercept and its solvents at equal concentrations (0.04 µg/mL - 4 µg/mL - 40 µg/mL - 400 µg/mL - 4 mg/mL) for 10 and 30 min before addition of agonists. IgG1 antibody was used as a control. The surface expression of GPIIb/IIIa, P-selectin, and platelet-bound stromal-cell-derived factor-1, which are potential blood biomarkers for ATEs, was determined on resting and activated platelets by the multispectral imaging flow cytometry, combining the features of flow cytometry with fluorescence microscopy. Platelet aggregation was assessed with light transmission aggregometry. To determine whether aflibercept directly interacts with platelets, aflibercept was labeled with the fluorescence FITC. Co-treatment of platelets with thrombin or PAR-4-AP and aflibercept resulted in increased activation of the fibrinogen receptor GPIIb/IIIa in comparison to controls (P < 0.05). Interestingly, the expression of platelet-derived P-selectin and SDF-1 was not affected by aflibercept, except thrombin-activated CD62P with 0.04 µg/mL aflibercept (aflibercept vs. its solvent: MSI = 1.54, IC = 1.201-1.879 vs. MSI = 1.37, IC = 1.136-1.604 [P = 0.031]) and SDF-1 with 4 mg/mL aflibercept (aflibercept vs. its solvent: MSI = 1.971, IC = 1.206-2.737 vs. MSI = 1.200, IC = 0.738-1.662 [P = 0.041]). Although the levels of platelet-bound aflibercept-FITC were significantly increased in all activated platelets, no effect was observed in platelet aggregation. Albeit no impact of aflibercept was found on platelet aggregation under the studied experimental conditions, the increased activation of the fibrinogen receptor GPIIb/IIIa and the presence of a direct interaction between aflibercept and platelets may partially explain the risk of ATE in patients under aflibercept treatment due to FcγRIIa mediated αIIbß3 outside-in integrin signaling and transport of aflibercept into platelets. Therefore, the Fc domain seems to be involved in interactions between aflibercept and platelets. Further research is needed to explain the role of Fc containing aflibercept in the pathogenesis of drug-associated vascular events involving platelets, coagulation cascade, extracellular matrix proteins and other cells.


Asunto(s)
Inhibidores de la Angiogénesis/farmacología , Plaquetas/efectos de los fármacos , Activación Plaquetaria/fisiología , Complejo GPIIb-IIIa de Glicoproteína Plaquetaria/metabolismo , Proteínas Recombinantes de Fusión/farmacología , Quimiocina CXCL12/sangre , Citometría de Flujo , Humanos , Microscopía Fluorescente , Selectina-P/sangre , Agregación Plaquetaria/fisiología , Receptores de Factores de Crecimiento Endotelial Vascular , Estudios Retrospectivos , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores
3.
Ophthalmologe ; 114(9): 818-827, 2017 Sep.
Artículo en Alemán | MEDLINE | ID: mdl-28831559

RESUMEN

BACKGROUND: Due to demographic change and societal transformation the number of elderly persons living in retirement homes is growing in Germany. Access to health care is more complicated in the setting of nursing homes. Different regional studies suggest unmet ophthalmological health care needs in institutionalized elderly people. This study assessed the current ophthalmological health care structure and supply status in nursing homes in Germany. METHODS: This prospective, multicenter cross-sectional study was conducted by 14 study centers in Germany. Elderly people living in 32 nursing homes were included after approval by the local institutional review boards. A standardized examination was performed which included a detailed medical and ocular history, refraction, visual acuity testing, tonometry, biomicroscopy and dilated funduscopy. Unmet ophthalmological health care needs were documented and the data were analyzed descriptively and via logistic regression modelling. RESULTS: A total of 600 participants (434 women and 166 men) aged 50-104 years were examined of which 368 (61%) had ophthalmological conditions requiring treatment. The most prevalent findings were cataracts (315; 53%), disorders of the eyelids (127; 21%), dry eye disease (57; 10%) and posterior capsule opacification (43; 7%). In 63 (11%) of the participants glaucoma was suspected and 55 (9%) of the examined population had a known diagnosis of glaucoma, of whom one third was not on any or on insufficient anti-glaucomatous therapy. 236 (39%) showed signs of age-related macular degeneration (AMD). Only 52% of the examined cohort had been examined by an ophthalmologist within the last 5 years and 39% stated that they would currently not be able to consult an ophthalmologist. Reported barriers were mainly transport and lack of support. CONCLUSION: This study demonstrates considerable unmet ophthalmological health care needs of the institutionalized elderly in Germany. Novel and reformed models of specialist care provision have to be developed.


Asunto(s)
Oftalmopatías/diagnóstico , Oftalmopatías/terapia , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Necesidades y Demandas de Servicios de Salud/estadística & datos numéricos , Hogares para Ancianos/estadística & datos numéricos , Casas de Salud/estadística & datos numéricos , Oftalmología/estadística & datos numéricos , Factores de Edad , Anciano , Anciano de 80 o más Años , Estudios Transversales , Técnicas de Diagnóstico Oftalmológico/estadística & datos numéricos , Oftalmopatías/epidemiología , Femenino , Alemania , Humanos , Masculino , Persona de Mediana Edad
4.
BMC Ophthalmol ; 17(1): 7, 2017 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-28103831

RESUMEN

BACKGROUND: While randomized controlled trials (RCTs) are based on strict inclusion/exclusion criteria, non-interventional studies (NISs) might provide additional information to guide management in patients more representative to the real-world setting. The aim of this study was to compare baseline characteristics of patients receiving intravitreal treatment in the NIS OCEAN with those from published RCTs. METHODS: The ongoing OCEAN study enrolled patients treated with ranibizumab for neovascular age-related macular degeneration (nAMD), diabetic macular oedema (DME) or branch/central retinal vein occlusion (B/CRVO). Baseline patient characteristics were compared by indication within the OCEAN cohort. Furthermore, the characteristics were set in reference to those of published RCTs in the same indications. Confidence intervals (CIs) were calculated and assessed for statistically significant differences as indicated by non-overlapping CIs. RESULTS: Patient characteristics in the NIS OCEAN were evaluated for 3,614 patients with nAMD, 1,211 with DME, 204 with BRVO and 121 with CRVO. Between these groups, significant differences in mean age, gender distributions, and mean baseline VA were seen, reflecting known differences between the indications. Compared to the patient characteristics of published RCTs (trials selected by literature search: nAMD: 13 RCTs, DME: 9, RVO: 5), the OCEAN patients' mean age was significantly higher in every indication. The gender distributions across the trials were comparable, with only few differences between OCEAN and the RCTs. Regarding the mean baseline VA, notable differences were found in nAMD and in DME, with VA significantly higher in some RCTs and lower in others. CONCLUSIONS: The described differences underline the complementarity of NISs and RCTs. OCEAN covers a broader spectrum and more variability of patients than do RCTs. As baseline values may have impact on the treatment response (ceiling effect), there is an ongoing need for research in all patient subgroups. Country-specific assessments of patient populations can better reflect the real-world situation. NISs can deliver insights that RCTs may not, as NISs can include non-typical patients, patients with comorbidities, a broader age spectrum and patients of various disease stages. TRIAL REGISTRATION: The NIS OCEAN was registered on www.clinicaltrials.gov (identifier: NCT02194803 ).


Asunto(s)
Bevacizumab/administración & dosificación , Investigación sobre Servicios de Salud , Edema Macular/tratamiento farmacológico , Ensayos Clínicos Controlados Aleatorios como Asunto , Ranibizumab/administración & dosificación , Oclusión de la Vena Retiniana/tratamiento farmacológico , Degeneración Macular Húmeda/tratamiento farmacológico , Distribución por Edad , Anciano , Inhibidores de la Angiogénesis/administración & dosificación , Femenino , Alemania/epidemiología , Humanos , Incidencia , Inyecciones Intravítreas , Edema Macular/epidemiología , Masculino , Oclusión de la Vena Retiniana/epidemiología , Distribución por Sexo , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Agudeza Visual , Degeneración Macular Húmeda/epidemiología
5.
Ophthalmologe ; 114(1): 30-43, 2017 Jan.
Artículo en Alemán | MEDLINE | ID: mdl-27844100

RESUMEN

BACKGROUND: Eyes with high myopia (axial length ≥ 26.5 mm) do not just have a different size. Due to morphological and structural changes there is a considerably increased risk for many different secondary diseases. OBJECTIVE: Determination of the incidence and mortality in high myopia, discussion of effects and clinical signs, presentation of treatment recommendations and counselling. MATERIAL AND METHODS: A systematic search of the literature was carried out and a discussion on basic principles and epidemiological investigations is presented. RESULTS: Findings due to high myopia are not in a closed state but undergo continuous changes. Choroidal neovascularization (adjusted prevalence 2.5-5%), staphyloma, foveoschisis and peripheral retinal degeneration are examples of problems contributing to the increased rate of visual impairment and blindness related to myopia. High myopia is associated with a clearly increased risk of retinal detachment after lens surgery (hazard ratio 6.1) and particularly more frequently in younger people. The associated primary open-angle glaucoma (odds ratio 2.46) is often recognized too late due to relatively low values of intraocular pressure. CONCLUSION: Understanding of atrophic areas and staphyloma has benefited from recent advances in imaging (e.g. magnetic resonance imaging, optical coherence tomography and wide-field imaging) that complement and explain histological findings. Knowledge of the associated risk profile is of major clinical relevance.


Asunto(s)
Neovascularización Coroidal/epidemiología , Glaucoma/epidemiología , Miopía/diagnóstico , Miopía/epidemiología , Desprendimiento de Retina/epidemiología , Enfermedades de la Esclerótica/epidemiología , Causalidad , Neovascularización Coroidal/diagnóstico , Comorbilidad , Glaucoma/diagnóstico , Humanos , Internacionalidad , Prevalencia , Desprendimiento de Retina/diagnóstico , Factores de Riesgo , Enfermedades de la Esclerótica/diagnóstico
6.
Klin Monbl Augenheilkd ; 233(12): 1367-1377, 2016 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-27454304

RESUMEN

Background: The main cause of blindness in the elderly in Germany is neovascular age-related macular degeneration (nAMD). In the non-interventional OCEAN study, data were prospectively collected on the routine clinical care of patients treated with the drug ranibizumab. Patients: As part of an interim analysis within the ongoing study (NCT02194803), stratification was performed by the 17 regions of the German associations of panel physicians and by areas of different population density. Only data were analysed for patients for whom the first treatment with ranibizumab was documented. Results: A total of 5,606 patients were documented. The present manuscript reviews 2,658 treatment-naive patients with nAMD, documented by 324 ophthalmologists. Most patients receiving an intravitreal injection were female (60 %). The average patient was aged 77.7 ± 8.2 years at study start. The great majority of patients had statutory health insurance (91 %). At baseline, fluorescein angiography (FLA) was performed for 72 % of patients, while optical coherence tomography (OCT) was carried out for 76 %. A combination of both was performed for 54 % of patients, varying regionally from 26 % (Saxony-Anhalt) to 100 % (Berlin). The average waiting time between the first examination and the first injection was 20.0 ± 18.5 days. With different statistical models (ANOVA adjusted, with/without interactions), significant effects on treatment delay were found for district type (population density), federal state and type of specialist. Conclusion: No major regional differences were observed in the demographic characteristics of the patient population. The main regional disparities in the care of nAMD patients were in the application of diagnostic methods and the waiting times between the first examination and the first drug administration. The regional variations in treatment delays could clearly influence the risk of worse functional outcome.


Asunto(s)
Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Disparidades en Atención de Salud/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Población Rural/estadística & datos numéricos , Degeneración Macular Húmeda/tratamiento farmacológico , Degeneración Macular Húmeda/epidemiología , Anciano , Anciano de 80 o más Años , Inhibidores de la Angiogénesis/administración & dosificación , Femenino , Alemania/epidemiología , Humanos , Inyecciones Intravítreas , Masculino , Prevalencia , Ranibizumab/administración & dosificación , Estudios Retrospectivos , Factores de Riesgo , Tiempo de Tratamiento , Resultado del Tratamiento , Degeneración Macular Húmeda/diagnóstico
7.
Klin Monbl Augenheilkd ; 233(8): 951-7, 2016 Aug.
Artículo en Alemán | MEDLINE | ID: mdl-27130973

RESUMEN

OBJECTIVES: Stereotactic radiation therapy (Oraya, OT) is available as a second line therapy for patients who, despite intensive anti-VEGF therapy for neovascular AMD, do not show an improvement in CNV. As OT is expensive (5,308 €), the short term economics for starting this therapy were investigated. METHODS: A short-term cost model was set up in MS Excel with a two year time horizon. On the basis of the data of the randomised, controlled INTREPID pivotal trial and current treatment practice in Germany, the costs were compared of conventional anti-VEGF therapy, with or without a single OT treatment. Patients with an active lesion after initial anti-VEGF therapy and a maximum lesion diameter ≤ 4 mm were included. Modeled cost components/aspects were direct savings from injection number, control follow-up examinations and aids, as well as anti-VEGF switches. Costs for Germany were employed and a univariate sensitivity analysis was performed to address the existing uncertainty. RESULTS: For the patients with a maximum AMD lesion diameter ≤ 4 mm and a macula volume > 7.4 mm(3), the INTREPID trial showed a mean reduction of 3.68 intravitreal injections for 16 Gy radiation versus sham over a time period of 2 years. These 3.68 IVM result in ~ 4,500 € direct cost savings. Moreover, due to the higher response rate with 16 Gy radiation, the number of follow-up visits and aids can be reduced, which results in savings between 207 € and 1,224 € over 2 years. After radiation, fewer anti-VEGF switches for low or non-responders are expected, which is modeled to result in ~ 1.7 fewer injections over 2 years. Due to overall fewer injections, fewer endophthalmitis cases would be expected. However, endophthalmitis and microvascular abnormalities, which can be observed in a few cases, are associated with low or non-quantifiable costs in this cost-cost comparison model. In summary, cost reductions of between 6,400 and 8,500 € are predicted in the model over two years, which have to be compared to the costs of a single application of OT. CONCLUSIONS: The short-term economic analysis shows that anti-VEGF therapy combined with OT results in savings above the costs for OT itself over a 2 year time horizon. Overall, the approach gives potential cost reductions, if the appropriate indication is followed.


Asunto(s)
Quimioradioterapia/economía , Costos de la Atención en Salud/estadística & datos numéricos , Modelos Económicos , Radiocirugia/economía , Degeneración Macular Húmeda/economía , Degeneración Macular Húmeda/radioterapia , Adulto , Inhibidores de la Angiogénesis/economía , Inhibidores de la Angiogénesis/uso terapéutico , Quimioradioterapia/estadística & datos numéricos , Simulación por Computador , Relación Dosis-Respuesta en la Radiación , Femenino , Alemania/epidemiología , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Prevalencia , Traumatismos por Radiación/economía , Traumatismos por Radiación/epidemiología , Radiocirugia/estadística & datos numéricos , Dosificación Radioterapéutica , Resultado del Tratamiento , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Degeneración Macular Húmeda/epidemiología
8.
Ophthalmologe ; 113(7): 570-80, 2016 Jul.
Artículo en Alemán | MEDLINE | ID: mdl-26868827

RESUMEN

BACKGROUND: The prevalence of blindness as defined by law could be reduced by the introduction of anti-vascular endothelial growth factor (VEGF) therapy. Because the treatment is governed by patient needs, mostly using morphological criteria, imaging diagnostics are of particular importance. The non-interventional OCEAN study investigates the treatment with ranibizumab in the clinical routine practice. In a subgroup of patients the interpretation of spectral domain optical coherence tomography (SD-OCT) scans by the treating physicians will be analyzed (ORCA module). METHODS: Over a period of 24 months data from patients with exudative age-related macular degeneration (AMD), macular edema due to retinal vein occlusion or diabetes mellitus, who are receiving intravitreal injections of ranibizumab, will be assessed. Information on examinations, visual acuity, treatment and recordings from imaging techniques will be documented using a questionnaire. The SD-OCT scans, fluorescence angiography and fundus photography will be independently analyzed by the ophthalmologist of the study center and by three reading centers (CIRCL Cologne, GRADE Bonn and M3 Münster). Automated measurements of retinal thickness by the manufacturers' software will be checked and if necessary manually corrected. A qualitative interpretation in terms of morphological criteria for (further) treatment will be performed. CONCLUSION: A thorough assessment of SD-OCT images during anti-VEGF therapy provides the basis for the best possible needs-oriented treatment regimen. The control of the quality of data from daily routine practice may indicate possible weaknesses allowing explicit training and therefore optimization of patient treatment.


Asunto(s)
Ceguera/diagnóstico , Ceguera/tratamiento farmacológico , Ranibizumab/uso terapéutico , Tomografía de Coherencia Óptica , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Ceguera/epidemiología , Ceguera/etiología , Retinopatía Diabética/diagnóstico , Retinopatía Diabética/tratamiento farmacológico , Angiografía con Fluoresceína , Alemania , Humanos , Inyecciones Intravítreas , Degeneración Macular/complicaciones , Degeneración Macular/diagnóstico , Degeneración Macular/tratamiento farmacológico , Edema Macular/complicaciones , Edema Macular/diagnóstico , Edema Macular/tratamiento farmacológico , Garantía de la Calidad de Atención de Salud , Retina/efectos de los fármacos , Oclusión de la Vena Retiniana/complicaciones , Oclusión de la Vena Retiniana/diagnóstico , Oclusión de la Vena Retiniana/tratamiento farmacológico , Encuestas y Cuestionarios , Resultado del Tratamiento
9.
Ophthalmologe ; 113(2): 143-51, 2016 Feb.
Artículo en Alemán | MEDLINE | ID: mdl-26201460

RESUMEN

BACKGROUND: The largest German prospective non-interventional ophthalmological study OCEAN (NCT02194803) investigates the treatment of retinal diseases with ranibizumab in routine patient care. A feature of this study is the participation of ophthalmic surgeons in surgical centers as well as general ophthalmologists who do not perform intravitreal injections themselves. OBJECTIVES: The functional outcome following administration of three intravitreal injections was analyzed with respect to the time from initial examination to the first injection (defined as treatment delay) as well as potentially confounding factors. MATERIAL AND METHODS: This interim analysis included only data from therapy naïve patients participating in the OCEAN study, who received at least three ranibizumab injections. The potential impact of various factors on treatment delay was analyzed by the χ(2)-test. RESULTS: Data of 1333 patients were analyzed. The median delay before treatment was 15 days (range 0-90 days). Patients with a delay of more than 28 days showed a significantly lower gain in visual acuity than patients with a delay of less than 14 days. Age, gender and baseline visual acuity did not show an association with the treatment delay; however, referral from a primary care ophthalmologist, undertaking fluorescein angiography in an external practice and the underlying indications did affect the observed treatment delays. CONCLUSION: Every patient should be treated within 14 days, following recent recommendations of the ophthalmological societies. Liability issues have to be considered as the statistical evaluation of real life data showed unambiguous results.


Asunto(s)
Enfermedades de la Retina/tratamiento farmacológico , Enfermedades de la Retina/epidemiología , Rituximab/administración & dosificación , Trastornos de la Visión/epidemiología , Trastornos de la Visión/prevención & control , Agudeza Visual/efectos de los fármacos , Anciano , Anciano de 80 o más Años , Inhibidores de la Angiogénesis/administración & dosificación , Comorbilidad , Esquema de Medicación , Femenino , Alemania/epidemiología , Humanos , Inyecciones Intravítreas , Masculino , Persona de Mediana Edad , Prevalencia , Resultado del Tratamiento , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores
10.
Ophthalmologe ; 112(3): 246-54, 2015 Mar.
Artículo en Alemán | MEDLINE | ID: mdl-25668709

RESUMEN

BACKGROUND: Neovascular (wet) age-related macular degeneration (wAMD) is a progressive and degenerative retinal disease. This study reports the real-life use in Germany of the standard anti-vascular endothelial growth factor (VEGF) therapy for wAMD as an intravitreal operative drug application. PATIENTS AND METHODS: Within the framework of an international retrospective study the medical records of patients with wAMD who were first treated with ranibizumab between 1 January and 31 August 2009 were evaluated. Data were collected until the end of treatment and/or monitoring or until 31 August 2011. The primary objective was to evaluate changes in visual acuity after the start of anti-VEGF therapy. Secondary outcomes included determining real-life anti-VEGF treatment regimens and disease-monitoring practices. RESULTS: Out of 2227 patients who received ≥ 1 anti-VEGF injection with a baseline visual acuity assessment and ≥ 1 post-baseline visual acuity assessment for the treated eye, 420 were included in the German cohort. Visual acuity improved until about day 90 but these gains in visual acuity were not maintained. The mean changes in visual acuity scores from baseline to years 1 and 2 were 1.1 ± 15.7 and - 0.8 ± 17.2 letters, respectively. Patients received a mean of 4.3 ± 1.9 and 1.3 ± 2.2 injections in years 1 and 2, respectively. The majority of visits ( 98.6 %) were conducted irregularly and outside the time frame recommended at the time of the study, with an average of 47.7 ± 36.7 days between visits. More frequent visits and injections were associated with greater improvements in visual acuity. CONCLUSION: Treatment intensity was not sufficient to maintain the initial improvement in visual acuity by ranibizumab treatment. Real-life results for visual acuity and injection frequency in the German cohort were worse at that time than in other countries. Regular follow-up visits as well as timely retreatment in the presence of signs of disease activity are required to achieve optimal results in wAMD when applying a pro re nata-based strategy.


Asunto(s)
Inhibidores de la Angiogénesis/administración & dosificación , Ranibizumab/administración & dosificación , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Trastornos de la Visión/prevención & control , Degeneración Macular Húmeda/diagnóstico , Degeneración Macular Húmeda/tratamiento farmacológico , Anciano , Comorbilidad , Femenino , Alemania/epidemiología , Humanos , Masculino , Prevalencia , Estudios Retrospectivos , Resultado del Tratamiento , Trastornos de la Visión/diagnóstico , Trastornos de la Visión/epidemiología , Agudeza Visual/efectos de los fármacos , Degeneración Macular Húmeda/epidemiología
11.
Graefes Arch Clin Exp Ophthalmol ; 253(8): 1377-83, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25619666

RESUMEN

PURPOSE: Conjunctival amyloidosis is a rare disorder. It is often clinically not suspected or diagnosed. This study intended to demonstrate the clinical and histopathologic features of this infrequent disease, including an immunohistochemical search for amyloidotic proteins. METHODS: Retrospective case series of the clinical and histopathologic characteristics of six patients with conjunctival amyloidosis. Immunohistochemical analysis with respect to possible amyloidotic components of the conjunctival deposits was performed. RESULTS: The diagnosis of amyloidosis was not suspected in all six cases presenting with an amelanotic conjunctival lesion. In three patients a conjunctival tumor of unknown origin, in one case each a papillomatous alteration of the conjunctiva, a conjunctival granulomatous inflammation, and a lymphoma were assumed respectively. The diagnosis of amyloidosis was made by histopathology. Immunohistochemical examination found lambda and kappa light chains as well as prealbumin within the amyloid deposits in one of the six specimens. CONCLUSIONS: The diagnosis of amyloidosis has to be kept in mind in cases with an unclear conjunctival mass or inflammatory process. Only a tissue biopsy is able to prove the diagnosis. A possible underlying systemic disease has to be ruled out.


Asunto(s)
Amiloidosis/diagnóstico , Enfermedades de la Conjuntiva/diagnóstico , Adulto , Anciano , Amiloidosis/metabolismo , Biomarcadores/metabolismo , Enfermedades de la Conjuntiva/metabolismo , Neoplasias de la Conjuntiva/diagnóstico , Femenino , Humanos , Técnicas para Inmunoenzimas , Cadenas kappa de Inmunoglobulina/metabolismo , Cadenas lambda de Inmunoglobulina/metabolismo , Masculino , Persona de Mediana Edad , Prealbúmina/metabolismo , Estudios Retrospectivos , Proteína Amiloide A Sérica/metabolismo
14.
Klin Monbl Augenheilkd ; 229(9): 889-96, 2012 Sep.
Artículo en Alemán | MEDLINE | ID: mdl-22930236

RESUMEN

Central neurosensory detachments (NSD) with time-dependent height constitute a disease called central serous chorioretinopathy (CSC), if not arising from uveitis, choroidal neovascularisations (CNV) or leaking retinal vessels. In 10 % of these patients, CSC develops into a chronic disease with recurrent NSD, atrophy of photoreceptors and severe drop in visual acuity. This review article summarises recent progress in understanding this disease and its appearance in funduscopy, FLA, ICG, OCT, autofluorescence as well as its progress, therapy and possible development into secondary CNV. The provided examples illustrate the progression of acute CSC into chronic CSC and with CNV over years. The different appearance of polypoidal choroidal vasculopathy (PCV) in ICG and some of the signs of atypical chronic CSC are discussed. To distinguish between cCSC and wet AMD--both exhibiting leakage in FLA--typical signs are helpful, e.g., "gravitational tracks", retinal precipitates and missing drusen. However, in small lesions, it may be difficult or almost impossible to ensure the correct diagnosis of the underlying disease. The same holds for occult and classic secondary CNV in cCSC vs. CNV in AMD, where photodynamic therapy (PDT) can be successful only in cCSC-CNV and in cCSC without CNV. Corticosteroids often lead to further impairment, even in cases of atypical cCSC, when frequently misdiagnosed as uveitis. As a duration of NSD of more than 4 months is suspected to induce an impairment of photoreceptors, regular examinations are necessary not only in chronic CSC but also after acute CSC (as this form can develop into chronic CSC), while effective therapies are available to resolve the NSD (PDT, anti-VEGF).


Asunto(s)
Inhibidores de la Angiogénesis/uso terapéutico , Coriorretinopatía Serosa Central/diagnóstico , Coriorretinopatía Serosa Central/terapia , Neovascularización Coroidal/diagnóstico , Degeneración Macular/diagnóstico , Fotoquimioterapia/métodos , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Neovascularización Coroidal/etiología , Neovascularización Coroidal/terapia , Diagnóstico Diferencial , Humanos , Degeneración Macular/complicaciones , Degeneración Macular/terapia
15.
Klin Monbl Augenheilkd ; 229(11): 1130-7, 2012 Nov.
Artículo en Alemán | MEDLINE | ID: mdl-22826187

RESUMEN

Since 2004 applications for research funding in ophthalmology have been evaluated together with those from neurosurgery, neuropathology, psychiatry, psychotherapy, psychosomatics, otolaryngology and neurology by a joint review board of the German Research Council (DFG). Facing a decreasing number of applications--in contrast to the need and importance of widespread ocular diseases--the working group "young academics" of the Deutsche Ophthalmologische Gesellschaft (DOG) assessed the perception of funding programmes and grants available. Young ophthalmologists think that they have poor prospects to receive funding by a DFG proposal. In comparison, specialist funding quotas show a stable development within the neurosciences over the last years. The sum of requested funding has a strong correlation with the total amount actually paid. By clarifying the number of funded proposals, the better transparency and communication for the existing programmes should improve the cooperativeness, the funding rate and number of applications in future. This inventory explicitly includes a motivational guidance for young researchers to take the initiative to do more proposals.


Asunto(s)
Fundaciones/economía , Fundaciones/tendencias , Oftalmología/economía , Oftalmología/tendencias , Apoyo a la Investigación como Asunto/economía , Apoyo a la Investigación como Asunto/tendencias , Actitud del Personal de Salud , Recolección de Datos , Industria Farmacéutica/economía , Industria Farmacéutica/tendencias , Femenino , Organización de la Financiación/economía , Organización de la Financiación/tendencias , Alemania , Humanos , Internet , Masculino , Encuestas y Cuestionarios
16.
Klin Monbl Augenheilkd ; 228(9): 762-70, 2011 Sep.
Artículo en Alemán | MEDLINE | ID: mdl-21913145

RESUMEN

Choroidal neovascularisation secondary to pathological myopia is the most common cause of severe visual impairment in myopic patients younger than 50 years old. The typical features of myopic CNV in contrast to age-related macular degeneration as well as the anatomic characteristics have an impact on the parameters of the baseline and follow-up examinations. As the usually small fibrovascular lesions show a rapid progression in the spontaneous course of the disease and lead to irreversible damage to the photoreceptors, prompt initiation of treatment is mandatory. The superior functional results of anti-VEGF drugs provide the reason for the first-line status of this treatment modality. Increasing safety data and consistent results of prospective pilot trials have proved photodynamic therapy to be inferior. There are signs that PRN-based treatment algorithms may allow for less frequent dosing than in other retinal diseases.


Asunto(s)
Neovascularización Coroidal/diagnóstico , Miopía/diagnóstico , Adulto , Anciano , Algoritmos , Anticuerpos Monoclonales Humanizados/efectos adversos , Anticuerpos Monoclonales Humanizados/uso terapéutico , Longitud Axial del Ojo/efectos de los fármacos , Longitud Axial del Ojo/fisiología , Bevacizumab , Neovascularización Coroidal/fisiopatología , Neovascularización Coroidal/terapia , Progresión de la Enfermedad , Angiografía con Fluoresceína , Humanos , Degeneración Macular/diagnóstico , Degeneración Macular/fisiopatología , Degeneración Macular/terapia , Persona de Mediana Edad , Miopía/fisiopatología , Miopía/terapia , Fotoquimioterapia , Células Fotorreceptoras de Vertebrados/efectos de los fármacos , Células Fotorreceptoras de Vertebrados/fisiología , Proyectos Piloto , Pronóstico , Estudios Prospectivos , Ranibizumab , Tomografía de Coherencia Óptica , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Factor A de Crecimiento Endotelial Vascular/fisiología , Agudeza Visual/efectos de los fármacos , Agudeza Visual/fisiología
17.
Ophthalmologe ; 108(10): 957-62, 2011 Oct.
Artículo en Alemán | MEDLINE | ID: mdl-21904837

RESUMEN

BACKGROUND: The Heidelberg retina tomograph (HRTIII, Heidelberg Engineering, Germany) in conjunction with the Moorfields regression analysis (MRA) allows monitoring for the progression of early damage to the optic nerve suspicious of early stage glaucoma. The confocal scanning laser ophthalmoscope provides clinicians with an objective and reproducible analysis of morphological parameters of the optic disc. Margins of the optic disc are approximated with a contour line to calculate the stereometric parameters leading to interobserver and intraobserver variability of the MRA. New devices enabling 3D fundus photography might be an alternative to the established HRT. It was the goal of this study to compare the methods by assessing the differences in the topographic parameters obtained by the HRT and the Kowa nonmyd WX 3D (2D/3D non-mydriatic retinal camera, Kowa, Japan) in a representative sample. METHODS: This retrospective study included 45 eyes of normal patients, 40 eyes of patients with macropapillae and 45 eyes of glaucoma patients. Each patient underwent an HRT examination and fundus photography with the Kowa nonmyd WX 3D on the same day. Excluded from the study were eyes with hazy media (cornea, lens, vitreous) or refractive anomalies higher than >4 dpt or astigmatisms >2 dpt. Eyes with previous refractive surgery history or other retinal diseases affecting the optic nerve were also excluded from the study. Bland-Altman plots were used for statistical evaluation. Distribution of parameters was described by 95% confidence intervals (CI). RESULTS: In normal eyes (n=45) a mean difference in the disc area of 0.33 mm(2) was found (95 % confidence interval CI: 0.22-0.43), in the cup-disc ratio (CDR) of 0.02 (95% CI: -0.06-0.14), in the cup volume of 0.03 mm(3) (95% CI: -0.04-0.01), in the rim volume of 0.04 mm(3) (95%-CI: -0.04-0.13) and in the maximum cup depth of 0.28 mm (95 %-CI: 0.34-0.23). All differences, except for the rim volume, were statistically significant (p<0.05). Patients exhibiting a macropapilla (n=40) displayed a mean difference of 0.03 mm(2) (95 % CI: -0.18-0.11) for the disc area, a difference in CDR of 0.09 (95% CI: -0.05-0.13), a difference in maximum cup depth of 0.28 mm (95% CI: 0.23-0.34) and a cup volume of 0.14 mm(3) (95%-CI: 0.10-0.18). In addition, there were no significant differences in rim volume (difference: -0.02 mm(3), 95% CI: -0.07-0.12) or in disc area. In glaucomatous eyes (n=45), the mean difference for cup area was 0.33 mm(2) (95% CI: 0.22-0.43), an area of 0.09 mm(2) (95% CI: 0.06-0.13) for the CDR, -0.03 mm(3) (95 % CI: -0.09-0.02) for the cup volume and 0.08 mm(3) (95% CI: 0.03-0.13) for the rim volume. Mean maximum cup depth difference was 0.25 mm (95% CI: 0.20-0.31). Mean differences in CDR, maximum cup depth and cup area were all statistically significant. The mean differences did not exceed the interobserver and intraobserver variability found in HRT measurements of other studies. CONCLUSIONS: To the best of our knowledge this study is the first comparing optic disc parameters of HRT and 3D photography. Mean differences in stereometric parameters did not exceed the known interobserver and intraobserver variability. The combination of non-mydriatic fundus photography and optic disc analysis is a very attractive and time-saving method. However, before progression of early glaucoma can be monitored or suspected glaucoma can be appraised over longer time periods, further studies are needed to clarify test and retest variability.


Asunto(s)
Glaucoma/patología , Microscopía Confocal/instrumentación , Oftalmoscopios , Disco Óptico/patología , Fotogrametría/instrumentación , Adulto , Diseño de Equipo , Análisis de Falla de Equipo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
18.
Ophthalmologe ; 107(12): 1176-84, 2010 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-21153578

RESUMEN

PURPOSE: By evaluating the current working conditions of young ophthalmology researchers in Germany, potential deficits should be highlighted to create a greater transparency. PATIENTS AND METHODS: Within the time period between October 2008 and March 2009 all residents and junior researchers at university eye hospitals and teaching hospitals were invited to participate in an open online survey to retrieve validated data on four different topics. RESULTS: A total of 187 validated residents filled out the questionnaire consisting of 48 items. The mean age of the 84 women and 77 men was 32±4 years and 48% of the physicians reported exceeding the normal working hours (by law) 4-5 times per week. Of the respondents 76% ruled out ever being supported in their research activities by a temporary release from clinical work. Nevertheless, several indices indicated enthusiastic career aspirations and research activities. The career success scale was greater than 5 in 70 (37%) of the participants (mean: 4.5). An adequate access to ophthalmologic online journals was indicated only by 59% of the people surveyed and 45% of scientists required additional support by English native speakers when writing a scientific manuscript. All physicians interviewed would decide in favor of ophthalmology again when asked which discipline would be chosen and 28% of the residents would not apply for a job at the same institution again. The atmosphere, access to surgical training and the quality of teaching were specified as the most important factors in the career decision in favor of a certain university. CONCLUSION: Some deficits of the training and working conditions could be clearly identified in the view of ophthalmology residents. Facing the unbroken high attractiveness of clinical disciplines, the provided insights can support further training programs and research incentives to improve the scientific output and ophthalmologic research in the long term.


Asunto(s)
Internado y Residencia , Oftalmología/educación , Investigadores , Tolerancia al Trabajo Programado , Adulto , Aspiraciones Psicológicas , Selección de Profesión , Recolección de Datos , Femenino , Alemania , Hospitales de Enseñanza , Hospitales Universitarios , Humanos , Internet , Masculino , Edición , Encuestas y Cuestionarios
19.
Ophthalmologe ; 107(8): 773-86; quiz 787-8, 2010 Aug.
Artículo en Alemán | MEDLINE | ID: mdl-20658139

RESUMEN

Due to demographic change the incidence of diabetic retinopathy has risen in spite of new facilities and prevention campaigns and is still one of the leading causes of blindness in Germany. The combination of focal/grid laser photocoagulation and an intravitreal anti-VEGF (vascular endothelial growth factor) regimen is the first line approach for clinically significant macular edema with foveal involvement and is evidence-based. Vitreomacular interface abnormalities can be effectively treated by modern vitreomacular surgery. Unfortunately, no proven treatment modality can be provided for ischemic maculopathy. The management of systemic risks factors, such as hyperglycemia and arterial hypertension, remains a task of great importance despite all modifications and increase of knowledge during recent years. Innovative developments in the field of intravitreal pharmacotherapy have opened up new vistas. There are good prospects that modern ophthalmology will not be limited to preserving visual function but to allow improvements and consequently enhance health-related quality of life for diabetic patients.


Asunto(s)
Inhibidores de la Angiogénesis/administración & dosificación , Anticuerpos Monoclonales/administración & dosificación , Aptámeros de Nucleótidos/administración & dosificación , Retinopatía Diabética/diagnóstico , Retinopatía Diabética/terapia , Coagulación con Láser/métodos , Edema Macular/diagnóstico , Edema Macular/cirugía , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Antiinflamatorios/administración & dosificación , Anticuerpos Monoclonales Humanizados , Bevacizumab , Terapia Combinada , Retinopatía Diabética/sangre , Angiografía con Fluoresceína , Hemoglobina Glucada/metabolismo , Humanos , Inyecciones Intravítreas , Isquemia/diagnóstico , Isquemia/terapia , Edema Macular/sangre , Oftalmoscopía , Ensayos Clínicos Controlados Aleatorios como Asunto , Ranibizumab , Desprendimiento de Retina/diagnóstico , Desprendimiento de Retina/terapia , Tomografía de Coherencia Óptica , Triamcinolona Acetonida/administración & dosificación
20.
Ophthalmologe ; 106(5): 465-70, 2009 May.
Artículo en Alemán | MEDLINE | ID: mdl-19408003

RESUMEN

Despite the increasing application of both approved and off-label drugs for intravitreal administration, the German health system still does not provide an accounting code for the procedure of intravitreal injections. Health insurances and politicians are exerting pressure in order to limit the expected increase in the number of medications and costs due to demographic factors. Although the price for the drug can be determined by the manufacturer, a standing committee has to agree on the fee to be charged for the medical service of injection and subsequent examinations. Until the missing arrangement has been made, each individual surgeon can balance accounts with the patients who have claim for reimbursement. Many contracts have recently been made in order to regulate the extent of performance and charges for the application of medications and follow-up examinations to reduce administration costs. Due to medical liability and ethical code, physicians are obliged to provide a cost-effective and adequate treatment as well as a comprehensive preoperative patient education including efficacy, potential complications, limited prescription and free choice of a medical practitioner. It also appears prudent to explain relevant terms such as 'off-label' and 'level of evidence'. To prevent any suspicion of personal advantage, patients should be informed if placed contracts do not allow equal reimbursement for the same treatment or similar drugs.


Asunto(s)
Oftalmopatías/tratamiento farmacológico , Inyecciones , Legislación de Medicamentos , Programas Nacionales de Salud/legislación & jurisprudencia , Cuerpo Vítreo , Flavonoides , Humanos
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