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2.
Ophthalmologe ; 118(8): 818-827, 2021 Aug.
Artículo en Alemán | MEDLINE | ID: mdl-33095296

RESUMEN

BACKGROUND: The European Foundation for Quality Management (EFQM) approach has been successfully implemented in healthcare but reports about EFQM awards at university clinics are lacking so far. Can a non-profit organization, such as a university eye department successfully compete with profit companies from industry for the National Prize of the Federal Ministry for Innovation and Business in Austria? MATERIAL AND METHODS: Following successful committed to excellence (C2E) assessments in 2008 and 2010, a 70-page corporate report was compiled strictly according to the EFQM logic (latest version 2013), consisting of basic concepts, criteria matrix and results/approach/deployment/assessment and refinement (RADAR) logic, which formed the basis for an 1­day assessment in 2018. Special emphasis was laid on the development and presentation of the strategy by means of the X­matrix (according to Hoshin-Kanri) between the University Eye Department and its shareholders, the Styrian Hospital Association (KAGes) owned by the Federal State of Styria and the Medical University financed by the Austrian State Federal Ministry. RESULTS: The total points score in the recognized for excellence (R4E) assessment 2018 was 500-550 points, which prompted the jury to award a jury prize of the Austrian National Prize (focus: participative leadership). Potential for improvement, which needs to be worked on in the near future was the alignment of core processes with the main performance indicators of the University Eye Department, which arises from its mission consisting of patient care, research, teaching, training and public relations activities. The development of the strategy with the shareholders has developed from a potential to a strength compared to the R4E assessment from 2017. CONCLUSION: Feedback from the assessor team after the site visit is the greatest added value for a university eye department and/or business enterprise. Improvement measures can be effectively derived following the RADAR logic and lead to a higher quality standard/score and improved performance.


Asunto(s)
Distinciones y Premios , Gestión de la Calidad Total , Austria , Humanos , Universidades
3.
Ophthalmologe ; 103(6): 506-11, 2006 Jun.
Artículo en Alemán | MEDLINE | ID: mdl-16763868

RESUMEN

PURPOSE: In this manuscript, the safety and efficacy of adjuvant interferon alfa 2b treatment of uveal melanoma is described. PATIENTS AND METHODS: A total of 39 patients (23 male and 16 female, mean age 56.5 years, range 35-78 years) with uveal melanoma were treated with interferon alfa 2b, 3 million units three times a week subcutaneously for 1 year after therapy of the primary tumor. In all patients age, gender, primary melanoma data, therapeutic interventions, treatment side effects and outcome were documented. RESULTS: Of the 39 patients, 31 (80%) finished the treatment as scheduled after 1 year. In 18 patients (46%) the initial dose had to be reduced due to leucopenia, thrombopenia, cardiac symptoms, elevated of liver function or vertigo (WHO grade I-III). In eight patients, therapy had to be withdrawn because of serious side effects (five patients) and the appearance of metastases (three patients). Neither a univariate approach nor a multivariate approach could show a protective effect of interferon treatment on survival. CONCLUSIONS: Adjuvant treatment of uveal melanoma with interferon alfa should be abandoned until the question of dose and administration for cutaneous melanoma is solved.


Asunto(s)
Interferón-alfa/administración & dosificación , Interferón-alfa/efectos adversos , Melanoma/tratamiento farmacológico , Medición de Riesgo/métodos , Neoplasias de la Úvea/tratamiento farmacológico , Adulto , Anciano , Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Quimioterapia Adyuvante , Femenino , Humanos , Interferón alfa-2 , Masculino , Persona de Mediana Edad , Proteínas Recombinantes , Factores de Riesgo , Resultado del Tratamiento
4.
Ophthalmologe ; 102(12): 1162-7, 2005 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-15947964

RESUMEN

BACKGROUND: An increasing number of orbital recurrences after TTT have been reported; the aim of our paper was to present our long-term results after a maximum follow-up of 8 years and 2 months. PATIENTS AND METHOD: Among 18 eyes, 10 tumors were classified as small, and 8 as medium sized (with a maximum prominence of 5.6 mm): 5 melanomas had a juxtapapillary location, 6 a macular (or juxtamacular) location, and 7 were located in the midperiphery of the fundus. RESULTS: After a median follow-up of 7 years in seven tumors a complete regression (scar formation) could be achieved, and in six a partial regression (with a maximum residual prominence of 2.9 mm) could be seen. In three patients a recurrence was treated either by another TTT or a Ruthenium-106 plaque; in another two recurrences, enucleation had to be performed. In none of the cases has an orbital recurrence occurred so far. CONCLUSION: To prevent recurrences, adequate technique and appropriate selection of patients are mandatory in our opinion (no tumors higher than 3 mm). The higher the tumor prominence, the greater the chance of recurrences. Amelanotic melanomas and macular melanomas seem to respond poorly to thermotherapy.


Asunto(s)
Hipertermia Inducida/instrumentación , Hipertermia Inducida/métodos , Rayos Infrarrojos/uso terapéutico , Terapia por Láser , Melanoma/terapia , Neoplasias de la Úvea/terapia , Adulto , Anciano , Anciano de 80 o más Años , Diseño de Equipo , Análisis de Falla de Equipo , Femenino , Humanos , Estudios Longitudinales , Masculino , Melanoma/patología , Persona de Mediana Edad , Pupila , Resultado del Tratamiento , Neoplasias de la Úvea/patología
5.
Int J Oncol ; 10(4): 793-9, 1997 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-21533447

RESUMEN

Monoclonal antibodies to the melanoma-associated antigens HMB-45 and NKI/C3, and for S-100 protein were applied to archival tissue of 43 intraocular melanomas. Tn addition, the expression of the oncoproteins ras-p21 (ras 10) and mutated Ha-ras (E 184) as well as neu/erb-B2 (p185) were immunohistochemically evaluated. Incubation with antibodies to HMB-45 and NKI/C3 revealed consistently moderate to strong staining in all cases. Comparable ras-p21 immunostaining with normal epithelium observed in infiltrating components with a pronounced heterogeneous pattern, was particulary evident in epitheloid tumor cells. In melanomas of the spindle cell type B there was a tendency for patients with neu/erb-B2 positivity to have a worse prognosis. Using the chi-squared test for trend a significant correlation was found between S-100 reactivity, neu/erb-B2 amplification and the clinical outcome.

6.
Bone Marrow Transplant ; 4(5): 587-9, 1989 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-2551437

RESUMEN

Cytomegalovirus (CMV) infection of the retina is a well recognized complication in patients with the acquired immune deficiency syndrome but is rarely seen after bone marrow transplantation (BMT). Among a variety of drugs ganciclovir so far appears to be the most effective therapy for CMV retinitis, but in previous studies relapses occurred in all patients in whom ganciclovir was interrupted. We report the clinical findings in a 22-year-old BMT recipient who developed bilateral exudative CMV retinitis 64 days after BMT despite prophylactic treatment with high-titer CMV-immunoglobulins and transfusions of CMV-negative blood products and donor bone marrow. During a 12 day course of treatment with 7.5 mg/kg/day of ganciclovir the CMV retinitis improved and viruria ceased on day 4 of therapy. In contrast to the previous reports, CMV retinitis in this patient continued to improve even after ganciclovir was stopped and eventually complete healing of all intraretinal lesions as well as total reconstitution of the visual acuity was achieved. He is now free of disease and without relapse of CMV retinitis more than 1 year after transplantation.


Asunto(s)
Trasplante de Médula Ósea/efectos adversos , Infecciones por Citomegalovirus/tratamiento farmacológico , Ganciclovir/uso terapéutico , Retinitis/tratamiento farmacológico , Adulto , Anticuerpos Antivirales/análisis , Antivirales/administración & dosificación , Antivirales/uso terapéutico , Trasplante de Médula Ósea/inmunología , Citomegalovirus/inmunología , Infecciones por Citomegalovirus/etiología , Ganciclovir/administración & dosificación , Humanos , Masculino , Leucemia-Linfoma Linfoblástico de Células Precursoras B/cirugía , Retinitis/etiología
7.
AJNR Am J Neuroradiol ; 21(1): 194-7, 2000 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-10669249

RESUMEN

We present the MR imaging findings in a 43-year-old male patient with bilateral idiopathic sclerosing inflammation of the orbit. Bilateral enhancing retrobulbar masses, with concentric compression of the retrobulbar segment of the left optic nerve, were seen. MR imaging proved to be the only means to distinguish between the different intraorbital structures and to determine the exact site of optic nerve compression. To our knowledge, this is the first documented case of MR imaging findings of this entity.


Asunto(s)
Síndromes de Compresión Nerviosa/complicaciones , Enfermedades del Nervio Óptico/complicaciones , Enfermedades Orbitales/etiología , Adulto , Fibrosis/patología , Humanos , Inflamación/etiología , Inflamación/patología , Imagen por Resonancia Magnética , Masculino , Síndromes de Compresión Nerviosa/patología , Enfermedades del Nervio Óptico/patología , Enfermedades Orbitales/patología , Esclerosis/patología
8.
Br J Ophthalmol ; 82(2): 154-8, 1998 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9613381

RESUMEN

BACKGROUND/AIMS: Between June 1992 and July 1995, 29 uveal melanomas were treated radiosurgically with the Leksell gamma unit at the University of Graz. The aim of this retrospective study was to examine the pattern of regression and the extent and time period of the decrease in tumour size. METHODS: The Leksell gamma knife, model B, was used. Patients were divided into three groups according to marginal dose: group 1: eight patients with a marginal dose > 50 Gy, group 2: 15 patients with a marginal dose = 50 Gy, and group 3: six patients with a marginal dose = 45 Gy. For the retrospective study two groups were examined: group A, tumours < 5 mm and group B, tumours > or = 5 mm. RESULTS: No significant correlation was found between tumour regression and the marginal dose. Tumour shrinkage depends on the pretreatment height. In the group of eight patients with an initial tumour prominence of less than 5 mm, no prominence was found after therapy. In the group of patients with an original tumour prominence of 5 mm and more, only two tumours formed a flat scar while a residual prominence was found in 18 patients. Increase in reflectivity combined with a decrease in size appears to be a good criterion for the effectiveness of the treatment. In five patients with tumours showing low reflectivity, over a longer period of time metastases were found. An enucleation was performed in two patients because of uncertain tumour regression and in one patient as a result of an increase in tumour size. CONCLUSION: The pattern of echographic reflectivity and decrease in size is similar to brachytherapy and is one of the most important diagnostic variables for evaluation of tumour regression. An increase in reflectivity as well as a decrease in tumour size in the first 6-8 months can be considered a therapeutic success.


Asunto(s)
Melanoma/diagnóstico por imagen , Radiocirugia , Neoplasias de la Úvea/diagnóstico por imagen , Adulto , Anciano , Anciano de 80 o más Años , Braquiterapia , Femenino , Estudios de Seguimiento , Humanos , Masculino , Melanoma/cirugía , Persona de Mediana Edad , Dosis de Radiación , Estudios Retrospectivos , Resultado del Tratamiento , Ultrasonografía , Neoplasias de la Úvea/cirugía
9.
J Neurosurg ; 93 Suppl 3: 184-8, 2000 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-11143243

RESUMEN

OBJECT: The authors report their experience using gamma knife radiosurgery (GKS) to treat uveal melanomas. METHODS: Between 1992 and 1998, 60 patients were treated with GKS at a prescription dose between 45 Gy and 80 Gy. The mean diameter of the tumor base was 12.2 mm (range 3-22 mm). The mean height of the tumor prominence was 6.7 mm (range 3-12 mm). The eye was immobilized. The follow-up period ranged from 16 to 94 months. Tumor regression was achieved in 56 (93%) of 60 patients. There were four recurrences followed by enucleation. The severe side effect of neovascular glaucoma developed in 21 (35%) patients in a high-dose group with larger tumors and in proximity to the ciliary body. A reduction in the prescription dose to 40 Gy or less and excluding treatment to tumors near the ciliary body decreased the rate of glaucoma without affecting the rate of tumor control. CONCLUSIONS: Gamma knife radiosurgery at a prescription dose of 45 Gy or more can achieve tumor regression in 85% of the uveal melanomas treated. Neovascular glaucoma can develop in patients when using this dose in tumors near the ciliary body. It is advised that such tumors be avoided and that the prescription dose be reduced to 40 Gy.


Asunto(s)
Melanoma/cirugía , Radiocirugia/instrumentación , Neoplasias de la Úvea/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Diagnóstico por Imagen , Diseño de Equipo , Enucleación del Ojo , Femenino , Estudios de Seguimiento , Glaucoma Neovascular/etiología , Humanos , Masculino , Melanoma/diagnóstico , Persona de Mediana Edad , Recurrencia Local de Neoplasia/diagnóstico , Recurrencia Local de Neoplasia/cirugía , Complicaciones Posoperatorias/etiología , Reoperación , Neoplasias de la Úvea/diagnóstico
10.
J Neurosurg ; 93 Suppl 3: 172-6, 2000 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-11143240

RESUMEN

OBJECT: Age-related macular degeneration (AMD) is the leading cause of severe vision loss in people older than age 65 years in the western world. The visual acuity loss usually results from the ingrowth of new vessels from the choroid capillaries, so called choroidal neovascularization (CNV). The aim of this pilot study was to investigate the effect of a single-fraction gamma knife radiosurgery (GKS) on visual acuity and the growth pattern of CNV in patients with AMD. METHODS: Ten patients with a mean age of 75 years and with a subfoveal, classic CNV due to AMD were enrolled in this study. All patients were treated with GKS in one fraction with a prescription dose of 10 Gy. The treatment target was the CNV located in the macula. Computerized tomography scans of the globe were obtained. After a follow up of 1 year visual acuity was stable in six patients and decreased in four. The size of the CNV could be stabilized in four patients, and in six an enlargement of these neovascular complexes was shown. No side effects, such as cataract formation, development of radiation-induced retinopathy, or optic neuropathy, have been observed so far. CONCLUSIONS: Gamma knife radiosurgery seemed to have a beneficial effect on visual acuity in patients with AMD, but it failed to control growth of CNV in six patients. A longer follow up, a larger study population, and a randomized and controlled study are necessary for a final conclusion.


Asunto(s)
Neovascularización Coroidal/cirugía , Degeneración Macular/cirugía , Radiocirugia , Anciano , Neovascularización Coroidal/diagnóstico , Femenino , Angiografía con Fluoresceína , Estudios de Seguimiento , Humanos , Degeneración Macular/diagnóstico , Masculino , Persona de Mediana Edad , Proyectos Piloto , Complicaciones Posoperatorias/etiología , Estudios Prospectivos , Resultado del Tratamiento , Agudeza Visual
11.
Ophthalmologe ; 92(3): 352-4, 1995 Jun.
Artículo en Alemán | MEDLINE | ID: mdl-7655212

RESUMEN

After tumor excision both lamallae of the eyelid have to be recreated to achieve good functional and cosmetic results. Tarsus should be replaced either by autologous cartilage like nasoseptal/ear cartilage, autologous lid cartilage or heterologous materials like a polytetrafluorethylene soft tissue patch (Goretex). We used Chondroplast as tarsus replacement in five patients after extensive tumor excision. Chondroplast is beta-irridiated, bovine cartilage. A thin 1.0-mm-thick lamella is fixed to the rest of the tarsus plate or the canthal tendon and positioned in a preformed pocket of conjunctiva and a thin layer of orbicularis muscle and skin. It is most important to cover the new tarsus completely with orbicularis muscle and conjunctiva. All implants took well. The postoperative results, lid closure and cosmetic appearance are excellent. No complications like infection or loss of the transplant occurred. The Chondroplast advantages are: availability in big pieces, no need for harvesting procedures and good biocompatibility. For these reasons Chondroplast proved to be an excellent graft to rebuild the tarsus and provides stability of the eyelid.


Asunto(s)
Bioprótesis , Carcinoma Basocelular/cirugía , Carcinoma de Células Escamosas/cirugía , Neoplasias de los Párpados/cirugía , Anciano , Anciano de 80 o más Años , Carcinoma Basocelular/patología , Carcinoma de Células Escamosas/patología , Neoplasias de los Párpados/patología , Párpados/patología , Párpados/cirugía , Femenino , Humanos , Masculino
12.
Ophthalmologe ; 90(5): 506-9, 1993 Oct.
Artículo en Alemán | MEDLINE | ID: mdl-8219641

RESUMEN

In 1965 Stickler described a pedigree combining ocular, facial, palatal and skeletal changes. The ocular findings comprise vitreoretinal changes, tears, retinal detachment, myopia and subcapsular cataract. We investigated eight siblings in two families with Stickler syndrome, two of them with a retinal detachment. In two members we observed subcapsular cataract, in four members an optically empty vitreous containing sparse transvitreal strands and sheets of condensed vitreous behind the lens; in the eyes of four emmetropic members with normal visual function large oral bays and large dental processes were found which extended much more posterior to the equator with localized depigmentation, erosions and small tears in the affected area. Similar changes could be observed in the second eye of one patient with a retinal detachment due to a giant tear. The changes of the peripheral retinal pigment epithelium in addition to the affected vitreoretinal base and vitreoretinal adhesions are responsible for the development of erosions, small tears, or even giant tears. Minimal changes as observed in the second eye of our patients with retinal detachment, or in the fundus of other family members, seem to be precursors of retinal detachment. Changes in the second eye of retinal detachment or in the retina of "unaffected" family members without retinal detachment or other associated symptoms of Stickler syndrome should be evaluated regularly and, if necessary, treated by laser, cryotherapy or even an encircling procedure.


Asunto(s)
Anomalías Múltiples/genética , Aberraciones Cromosómicas/genética , Anomalías del Ojo/genética , Huesos Faciales/anomalías , Genes Dominantes/genética , Cráneo/anomalías , Adolescente , Niño , Trastornos de los Cromosomas , Femenino , Humanos , Masculino , Linaje , Desprendimiento de Retina/genética , Perforaciones de la Retina/genética , Síndrome
13.
Ophthalmologe ; 92(1): 76-8, 1995 Feb.
Artículo en Alemán | MEDLINE | ID: mdl-7719082

RESUMEN

Accurate visualization of the tumor base by diaphanoscopy is essential for optimal placement of a ruthenium plaque. Depending on the localization of the tumor, dissection of one or more of the rectus muscles is necessary during placement of the plaque or during the course of protracted irradiation. Orthoptic investigations were performed to evaluate the cause of motility disorders and to follow up the functional outcome. In 13 patients (out of 30) who underwent ruthenium-106 therapy for uveal melanomas, one or more muscles had to be dissected during placement of the plaque and were reinserted in the same operation or after removal of the applicator. In 4 cases rectus muscles had to be shifted and were replaced after the irradiation. There were 5 patients who developed motility disorders with double vision. All of them were orthophoric within 6 months without surgery.


Asunto(s)
Braquiterapia , Neoplasias de la Coroides/radioterapia , Melanoma/radioterapia , Traumatismos por Radiación/etiología , Radioisótopos de Rutenio/efectos adversos , Adulto , Diplopía/etiología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Trastornos de la Motilidad Ocular/etiología , Músculos Oculomotores/efectos de la radiación , Músculos Oculomotores/cirugía
14.
Ophthalmologe ; 100(8): 623-7, 2003 Aug.
Artículo en Alemán | MEDLINE | ID: mdl-12955443

RESUMEN

PURPOSE: Our aim was to evaluate the frequency, duration and therapy of diplopia in primary position caused by motility disorders after retinal detachments treated only with encircling bands. METHODS: A retrospective review is made of 264 consecutive patients. RESULTS: At 6 months after surgery,18 (7%) out of the 264 patients had motility disorders with diplopia in primary position. In 55%, we found an esotropia and vertical deviation. For the treatment of diplopia, eight patients had prisms foils, five of whom are scheduled for surgery, six patients wear prism glasses and three patients did not return for follow up after their sight had been corrected with prisms. An operation for strabism was necessary in three cases, mainly because of hypertrophic scarring (adhesion syndrome), rather than suturing material or muscular decompensation. One patient needed eye occlusion for untreatable diplopia. The average change of refraction after the encircling procedure was -2.0 D. CONCLUSIONS: We recommend avoiding unnecessary preparation of the muscles when placing the encircling band (without destruction of the Tenon or periorbital tissue), motility exercises after the operation and full refractive correction for sensory compensation of deviations as early as possible. In addition, antiphlogistic drugs should be used to avoid scarring and treatment with prism lenses. Removal of the encircling band does not seem to improve the motility as the disorder is mainly caused by hypertrophic scarring, neither does mitomycin C or the application of viscoelastic substances.


Asunto(s)
Diplopía/etiología , Complicaciones Posoperatorias/etiología , Desprendimiento de Retina/cirugía , Curvatura de la Esclerótica , Enfermedad Crónica , Humanos , Refracción Ocular , Reoperación , Estudios Retrospectivos , Estrabismo/etiología , Visión Binocular , Agudeza Visual
15.
Ophthalmologe ; 98(4): 406-8, 2001 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-11374285

RESUMEN

BACKGROUND: Ciliary body melanoma is often diagnosed too late and therefore has a poor prognosis. The circular infiltration of the iridocorneal angle by malignant cells can lead to secondary glaucoma, often misdiagnosed as pigmentary glaucoma. MATERIAL AND METHODS: In a 40-year-old patient the diagnosis "atypical pigmentary glaucoma" was made due to elevated intraocular pressure and pigmentation of the iridocorneal angle; no changes were present in the iris. In a second case pronounced pigmentation of the chamber angle and secondary glaucoma led to the clinical diagnosis of a ring melanoma and resulted in enucleation of the globe. RESULTS: In the first case, increasing pigmentation of the chamber angle over 4 weeks led to the presumed diagnosis of a ring melanoma. Histopathological evaluation confirmed the diagnosis of a ring melanoma of the ciliary body. In the second case histology revealed retinal detachment with intraocular bleeding without intraocular melanoma. The pigmentation in the lower part of the chamber angle was due to hemosiderosis. CONCLUSION: Diagnosis of ciliary body melanomas may be difficult in some cases due to its similarity to other eye diseases. The differential diagnosis of malignant melanoma of the ciliary body should be considered in cases of unilateral pigmentary glaucoma.


Asunto(s)
Cuerpo Ciliar , Melanoma/diagnóstico , Neoplasias de la Úvea/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Cuerpo Ciliar/patología , Diagnóstico Diferencial , Femenino , Glaucoma de Ángulo Abierto/diagnóstico , Glaucoma de Ángulo Abierto/patología , Hemosiderosis/diagnóstico , Hemosiderosis/patología , Humanos , Melanoma/patología , Neoplasias de la Úvea/patología
16.
Ophthalmologe ; 90(5): 528-32, 1993 Oct.
Artículo en Alemán | MEDLINE | ID: mdl-8219645

RESUMEN

In this study 9 uveal melanomas, 1 iris melanoma and 1 conjunctival melanoma were evaluated for their proliferation activity with antibodies to KI67 protein. In addition, the distribution of glutathion-S transferase (alkaline and acid isoforms) and lysosomal cathepsin D protease was demonstrated immunohistochemically. The expression of the oncoproteins c-neu (internal and external domaine) and ras (mutated and non-mutated isoform) were also analyzed with specific monoclonal antibodies. In the case of the metastasing melanoma significant Ki67 protein expression and marked expression of the oncoproteins ras p21 and pan ras were obvious. All other melanomas showed less proliferation and enzymatic activity with a moderate expression pattern for oncoproteins. Regarding the results of the proliferation and enzymatic markers, the tumors were heterogeneous; single cells or clusters may play a role in the prognosis of the tumor if there is an intense immunohistochemical reaction. The influence of histomorphological criteria, e.g., cell subtype, seems to be minor compared to immunohistochemical criteria.


Asunto(s)
Biomarcadores de Tumor/análisis , División Celular/fisiología , Neoplasias de la Coroides/patología , Neoplasias de la Conjuntiva/patología , Enzimas/análisis , Neoplasias del Iris/patología , Melanoma/patología , Oncogenes/genética , División Celular/genética , Coroides/patología , Neoplasias de la Coroides/genética , Conjuntiva/patología , Neoplasias de la Conjuntiva/genética , Regulación Neoplásica de la Expresión Génica/fisiología , Humanos , Técnicas para Inmunoenzimas , Iris/patología , Neoplasias del Iris/genética , Melanoma/genética
17.
Ophthalmologe ; 101(11): 1111-9, 2004 Nov.
Artículo en Alemán | MEDLINE | ID: mdl-15205904

RESUMEN

BACKGROUND: To evaluate tumor regression and sequelae in 30 uveal melanomas treated with Gamma Knife radiosurgery between 1992 and 1995 at the Gamma Knife center in Graz. PATIENTS: A total of 30 uveal and ciliary body melanomas were treated with a single fraction of the Gamma Knife. The mean marginal dose was 52.1 Gy, (median 50 Gy). Of the tumors, 15 were large (higher than 8 mm), 14 were medium sized (3-8 mm) and one was a small melanoma (<3 mm). Among them were 6 juxtapapillary, 10 (juxta-) maculary melanomas, 5 tumors located in the midperiphery and 9 ciliary body melanomas. METHOD: Dose-volume histogram analysis. RESULTS: After a maximum follow up of 9 years and 7 months, 8 tumors regressed into a scar, 17 tumors into a residual prominence between 50% and 80% of the initial tumor height, 3 tumors showed no change and in 2 patients recurrence was obvious. Sequelae were classified as mild (in 3 patients), moderate (3), severe (5) and very severe (19). CONCLUSIONS: Significant factors for the development of severe sequelae were the tumor volume and the marginal dose, the mean dose proved to be more important than the marginal dose and the irradiated volume more important than the selective critical dose.


Asunto(s)
Relación Dosis-Respuesta en la Radiación , Melanoma/epidemiología , Melanoma/radioterapia , Radiocirugia/métodos , Radiocirugia/estadística & datos numéricos , Neoplasias de la Úvea/epidemiología , Neoplasias de la Úvea/radioterapia , Adulto , Anciano , Anciano de 80 o más Años , Fraccionamiento de la Dosis de Radiación , Femenino , Alemania/epidemiología , Humanos , Masculino , Melanoma/patología , Persona de Mediana Edad , Recurrencia Local de Neoplasia/epidemiología , Índice de Severidad de la Enfermedad , Estadística como Asunto , Resultado del Tratamiento , Neoplasias de la Úvea/patología
18.
Ophthalmologe ; 108(4): 351-63, 2011 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-21424422

RESUMEN

BACKGROUND AND OBJECTIVE: In the context of legal requirements and scarcer resources, the implementation of a quality management (QM) model will provide a competitive advantage or a site warranty for a hospital. For 3 years, the Department of Ophthalmology in Graz has been working with the EFQM model and has now accomplished the first level quality award, namely "Committed to Excellence (C2E)". The project work towards achieving this C2E-award is described below. STUDY DESIGN AND METHODS: EFQM stands for European Foundation for Quality Management, an organization that was founded in 1989 by the EU, together with 14 leading enterprises. In the EFQM model, the maturity of an organization in terms of quality is determined through the achievement of a number of quality awards. The C2E award is the first of these awards. At the beginning of our work for the C2E level, the strengths and weaknesses of the Department of Ophthalmology were determined by means of an EFQM questionnaire. Three improvement measures with the highest impact on the performance of the clinic were identified by the questionnaire: 1. The hospitalization of a cataract patient. 2. The lack of information between the various professional parties. 3. The lack of knowledge within the professional groups of the objectives and strategy of the Department of Ophthalmology. RESULTS: These areas requiring improvement were targeted, addressed and improved in a 6-months project work, structured by the EFQM model. The project work as a whole, the results obtained and the corresponding written documentation were evaluated positively in a 1-day assessment by Quality Austria. DISCUSSION: The EFQM model is a challenging quality management model. After the necessary training of project members or under the supervision of experienced quality managers, the EFQM model may be successfully applied to patient care, teaching and research in a department of ophthalmology.


Asunto(s)
Distinciones y Premios , Departamentos de Hospitales/organización & administración , Oftalmología/organización & administración , Servicio Ambulatorio en Hospital/organización & administración , Gestión de la Calidad Total/organización & administración , Austria , Extracción de Catarata , Conducta Cooperativa , Documentación , Eficiencia Organizacional , Hospitalización , Hospitales Universitarios , Humanos , Comunicación Interdisciplinaria , Objetivos Organizacionales , Satisfacción del Paciente , Mejoramiento de la Calidad/organización & administración , Indicadores de Calidad de la Atención de Salud , Estudios de Tiempo y Movimiento
20.
Klin Monbl Augenheilkd ; 221(3): 160-74, 2004 Mar.
Artículo en Alemán | MEDLINE | ID: mdl-15052521

RESUMEN

In view of diverging opinions for retinal detachment surgery (pneumatic retinopexy or buckling procedure with or without drainage versus primary vitrectomy without external buckling) pneumatic retinopexy, orbital balloon, buckling procedures (sponge, encircling band) are discussed with a short historical background and a brief description of current technology. Pros and cons of the individual technique are discussed on the basis of monographs and articles. From the repertoire of a retinal surgeon typical case examples are presented, different operation methods discussed, advantages and disadvantages of each individual technique emphasized. A goal of the work is to provide a practicable manual for the less experienced surgeon and the expert, who experiences an increasing trend to vitrectomy techniques instead of the conventional buckling procedures.


Asunto(s)
Cateterismo , Vías Clínicas , Desprendimiento de Retina/cirugía , Perforaciones de la Retina/cirugía , Curvatura de la Esclerótica , Vitrectomía , Fondo de Ojo , Humanos , Desprendimiento de Retina/diagnóstico , Desprendimiento de Retina/etiología , Perforaciones de la Retina/diagnóstico , Perforaciones de la Retina/etiología , Retinoscopía , Resultado del Tratamiento , Desprendimiento del Vítreo/diagnóstico , Desprendimiento del Vítreo/etiología , Desprendimiento del Vítreo/cirugía
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