RESUMEN
BACKGROUND: Though poorly known, relationships between disability, need of help (dependency) and use of social services are crucial aspects of public health. The objective of this study was to describe the links between disability, officially assessed dependency, and social service use by an industrial population, and identify areas of inequity. METHODS: We took advantage of a door-to-door survey conducted in the Cinco Villas district, Spain, in 2008-2009, which provided data on disability, morbidity, and service use among 1216 residents aged ≥50 years, and officially assessed dependency under the 2006 Dependency Act (OAD). Using logistic regression, we combined data collected at homes/residences on 625 disability screened-positive participants, and administrative information on degree of OAD and benefits at date of visit. RESULTS: Based on 163 disabled persons, the prevalence of residential/community-care users was 13.4% overall, with 6.0% being market-provided, 2.5% supported by the 2006 Act, and 4.9% supported by other public funds. Of 111 OAD applicants, 30 had been assigned an OAD degree; in 29 cases this was the highest OAD degree, with 12 receiving direct support for residential care and 17 receiving home care. Compared to unassessed dependency, the highest OAD degree was linked to residential care (OR and 95% CI) 12.13 (3.86-38.16), declared non-professional care 10.99 (1.28-94.53), and publicly-funded, non-professional care 26.30 (3.36-205.88). In contrast, 43 persons, 58% of the severely/extremely disabled, community-dwelling sample population, 81% of whom were homebound, including 10 persons with OAD but no implemented service plan, made no use of any service, and of these, 40% lacked a non-professional carer. CONCLUSIONS: Formal service use in the Cinco Villas district attained ratios observed for established welfare systems but the publicly-funded proportion was lower. The 2006 Act had a modest, albeit significant, impact on support for non-professional carers and residential care, coexisting with a high prevalence of non-use of social services by severely disabled persons.
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Cuidadores/estadística & datos numéricos , Personas con Discapacidad/estadística & datos numéricos , Servicios de Atención de Salud a Domicilio/estadística & datos numéricos , Servicio Social/estadística & datos numéricos , Anciano , Anciano de 80 o más Años , Femenino , Encuestas de Atención de la Salud , Humanos , Cuidados a Largo Plazo/estadística & datos numéricos , Masculino , Persona de Mediana Edad , España/epidemiologíaRESUMEN
PURPOSE: We measured the amount of hemoglobin at the optic nerve head of fibromyalgia (FM) patients using new colorimetric analysis software. We also investigated whether perfusion defects of the optic nerve head in patients with FM lead to tissue atrophy and corresponding retinal nerve fiber layer (RNFL) thinning measured by optical coherence tomography (OCT). METHODS: We recruited for this cross-sectional study 118 FM patients and 76 sex- and age-matched healthy controls. All subjects underwent a complete neuro-ophthalmologic examination, which also included visual field testing using the Spark strategy in an Easyfield perimeter, and OCT examinations using the Spectralis. One photograph of the optic disc was obtained using a Cirrus™ Photo 800 multi-modality imager. We analyzed fundus photographs using Laguna ONhE software, a new method that allows hemoglobin levels to be measured at the optic nerve head. We compared hemoglobin percentages in different sectors of the nerve head and RNFL thicknesses between the two groups. RESULTS: Mean hemoglobin percentages and hemoglobin content in all optic nerve head sectors calculated by the Laguna ONhE program were significantly lower in FM patients than in healthy controls, and the main differences were detected in the outer ring, which corresponds with the neuroretinal rim. However, only the differences in the superotemporal RNFL were statistically significant. Correlations between the RNFL thickness and the percentage of hemoglobin in the different sectors were weak. CONCLUSION: Optic disc perfusion was decreased in patients with FM, especially within the neuroretinal rim, without clear involvement in the RNFL.
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Colorimetría/métodos , Fibromialgia/fisiopatología , Hemoglobinometría/métodos , Procesamiento de Imagen Asistido por Computador/métodos , Atrofia Óptica/diagnóstico , Disco Óptico/irrigación sanguínea , Neuropatía Óptica Isquémica/diagnóstico , Programas Informáticos , Adulto , Circulación Sanguínea , Estudios de Casos y Controles , Femenino , Fibromialgia/complicaciones , Humanos , Presión Intraocular , Masculino , Persona de Mediana Edad , Atrofia Óptica/etiología , Atrofia Óptica/fisiopatología , Disco Óptico/patología , Neuropatía Óptica Isquémica/etiología , Neuropatía Óptica Isquémica/fisiopatología , Fotograbar , Fumar/fisiopatología , Tomografía de Coherencia ÓpticaRESUMEN
We have performed univariate and multivariate analysis to identify the clinical and treatment-related prognostic factors in a series of 254 patients with newly diagnosed, histologically proven, oropharyngeal squamous cell carcinoma treated with radical radiation therapy. The probabilities of local control, regional control, disease-free survival (DFS) and adjusted survival (AS) were calculated using the Kaplan-Meier method and differences between curves were evaluated by the Mantel-Cox test. The obtained significant variables in the univariate analysis were analysed using the Cox proportional hazards model. In the Cox multivariate analysis, four variables significantly influenced local control probability in the following order: tumour diameter, N stage, alcohol intake and weight loss. N stage significantly influenced the probability of regional control. Five variables influenced both DFS and AS: N stage, tumour diameter, weight loss, alcohol intake and tumour origin within the posterior oropharyngeal wall.
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Carcinoma de Células Escamosas/mortalidad , Neoplasias Orofaríngeas/mortalidad , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Consumo de Bebidas Alcohólicas , Carcinoma de Células Escamosas/radioterapia , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Neoplasias Orofaríngeas/radioterapia , Pronóstico , Modelos de Riesgos Proporcionales , Análisis de Supervivencia , Pérdida de PesoRESUMEN
PURPOSE: To evaluate the effectivity of high-dose episcleral iridium-192 wires in the treatment of choroidal melanoma. METHODS AND MATERIALS: In 1983, the Departments of Radiation Oncology and Ophthalmology at the Clínica Puerta de Hierro, Madrid, Spain, initiated a clinical study using removable episcleral iridium-192 wires in the treatment of choroidal melanoma. Sixty-six evaluable patients were treated from January 1983 through July 1992. Two patients had a small sized tumor (3%), 28 had a medium sized tumor (42%), and 36 patients had a large tumor (54%). The mean follow-up was 40 months (6-118 months). The dose to the apex of the tumor ranged from 66 to 97 Gy (mean 76.6 Gy), and the doses at 2 mm depth ranged from 77 to 433 Gy (mean 200 Gy). RESULTS: Tumor regression or stabilization was observed in 53 of the 66 patients (90%). Visual acuity improved following treatment in 5 out of 54 patients (9%), remaining unchanged in 30 out of 54 (56%), and decreased in 19 out of 54 (35%) patients. The remaining seven patients had undergone enucleation. Late complications have been documented in 20 out of 66 patients (30%), including 6 patients in whom enucleation was required because of radiation-related complications. The probability of survival and survival free of local progression was 93% at 5 years and 79% at 10 years. The probability of retaining the treated eye is 82% after the fifth year posttreatment. CONCLUSIONS: Treatment of choroidal melanomas with episcleral iridium-192 wires is as effective as treatment with other radioactive applications. We feel that our results using iridium-192 wires are comparable to the other methods. However, we think that our technique is simple to implement, relatively inexpensive, and well tolerated.
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Braquiterapia/métodos , Neoplasias de la Coroides/radioterapia , Radioisótopos de Iridio/uso terapéutico , Melanoma/radioterapia , Neoplasias de la Coroides/mortalidad , Neoplasias de la Coroides/patología , Neoplasias de la Coroides/fisiopatología , Enucleación del Ojo , Estudios de Seguimiento , Humanos , Melanoma/mortalidad , Melanoma/patología , Melanoma/fisiopatología , Metástasis de la Neoplasia , Probabilidad , Tasa de Supervivencia , Factores de Tiempo , Agudeza VisualRESUMEN
PURPOSE: To determine the activity and evaluate the toxicity of uracil and tegafur in a 4:1 molar concentration (UFT) plus low-dose leucovorin administered concomitantly with pelvic irradiation in patients with unresectable or recurrent rectal cancer. METHODS AND MATERIALS: Thirty-five patients (22 with primary unresectable tumors and 13 with locally recurrent tumors) were enrolled in the trial. Thirty-five patients were evaluable for toxicity and 32 of these were evaluable for clinical response. Patients received 300 mg/m2/day UFT and 30 mg/day leucovorin on days 8-35 concomitantly with pelvic radiotherapy, to a total dose of 45 Gy. RESULTS: Eight of the 35 (23%) patients developed Grade 3 diarrhea and were treated with radiotherapy alone after this event. Of the 22 patients with unresectable primary tumors, 17 underwent surgery, and resection was feasible in 15 cases (88%). Of the 32 patients evaluable for clinical response, 4 (13%) had a complete clinical response (CR) and 22 (69%) a partial response (PR). A complete pathologic response was observed in 3 cases (18%) and, a PR in 11 cases (65%). CONCLUSION: The response rates achieved with this schedule seem comparable to those obtained with 5-FU and radiotherapy. These results warrant further evaluation of this combination in patients with unresectable or locally advanced tumors.
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Antídotos/administración & dosificación , Antimetabolitos Antineoplásicos/administración & dosificación , Leucovorina/administración & dosificación , Neoplasias del Recto/tratamiento farmacológico , Neoplasias del Recto/radioterapia , Tegafur/administración & dosificación , Adulto , Anciano , Anciano de 80 o más Años , Antimetabolitos Antineoplásicos/efectos adversos , Diarrea/inducido químicamente , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias del Recto/patología , Tegafur/efectos adversos , Uracilo/administración & dosificación , Uracilo/efectos adversosRESUMEN
Twenty-seven patients with malignant epithelial tumors of the conjunctiva were treated between 1967 and 1987. Histological diagnosis was intraepithelial epithelioma in 15 cases (56%) and squamous cell carcinoma in 12 (44%). All patients were treated with a strontium-90 source on cup-shaped applicators of different sizes according to the extension of the tumor. Surface dose ranged from 60 Gy in a single treatment to 140 Gy in 7 fractions, depending on the thickness of the lesion. Fifteen patients were previously untreated, 7 were irradiated after some type of surgical treatment and 5 were treated for recurrence after multiple surgical excisions. Follow-up period ranged from 2 to 15 years. No patient died of his tumor. There were four local recurrences, three of them in patients with intraepithelial carcinoma. Two of the recurrences were salvaged with a new beta-ray treatment and the other two with enucleation. Since 1981, standard policy was to irradiate the entire conjunctiva in patients with diagnosis of intraepithelial epithelioma. Five patients developed cataracts. Considering the high primary control rate and minimal morbidity, strontium irradiation should be considered as a first-choice treatment for conjunctival tumors.
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Carcinoma in Situ/radioterapia , Carcinoma de Células Escamosas/radioterapia , Neoplasias de la Conjuntiva/radioterapia , Radioisótopos de Estroncio/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Enucleación del Ojo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Dosificación Radioterapéutica , Radioisótopos de Estroncio/efectos adversosRESUMEN
Between 1975 and 1990, eighteen patients with a histologically proven diagnosis of chordoma were treated at our institution. All patients initially underwent a surgical procedure and were referred for irradiation due to residual disease or postsurgical relapse. The mean dose administered was 50.1 Gy (range, 29.9-64.8 Gy). Eight patients were treated according to a hyperfractionated schedule. The overall actuarial 5-year survival and 5-year progression-free survival were 38% and 17%, respectively. The progression-free interval was longer for patients receiving doses greater than 48 Gy when compared with doses below 40 Gy (actuarial 5-year progression-free survival of 31 +/- 35% vs. 0%, respectively; p = 0.04). We conclude that in the treatment of chordoma, the administration of high radiation doses may increase the disease-free interval. The objective response and dose-response relationships were analyzed in twelve patients for whom sequential CT scans were available.
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Cordoma/radioterapia , Adulto , Anciano , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Región Sacrococcígea , Neoplasias Craneales/radioterapia , Neoplasias de la Columna Vertebral/radioterapia , Análisis de Supervivencia , Tasa de SupervivenciaRESUMEN
A monoclonal antibody against the surface marker IOT-10 of natural killer (NK) cells was used to investigate the presence and distribution of these cells in a series of nine primary intracranial germinomas. In all of these tumors, IOT-10-positive NK cells were found in small numbers, mainly distributed among the tumor cells. The data obtained in the present study suggest that the presence of NK cells in primary intracranial germinomas can be influenced by factors other than the mere quantity of tumor-infiltrating lymphocytes.
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Neoplasias Encefálicas/patología , Disgerminoma/patología , Células Asesinas Naturales/patología , Linfocitos/patología , Humanos , Inmunohistoquímica/métodos , Coloración y EtiquetadoRESUMEN
The pineal region is one of the rarest sites in the brain for metastatic involvement of systemic malignant tumors. A review of the literature shows that approximately 70 such cases have been reported previously, and most of them were diagnosed by autopsy. In this brief report we describe three cases of isolated intracranial metastasis to the pineal region that were diagnosed in patients alive. Although occurring rarely, metastatic lesions should be considered in the differential diagnosis of pineal region tumors.
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Neoplasias Encefálicas/secundario , Glándula Pineal/patología , Adulto , Neoplasias Encefálicas/diagnóstico por imagen , Neoplasias Encefálicas/cirugía , Carcinoma/diagnóstico por imagen , Carcinoma/patología , Carcinoma/cirugía , Carcinoma de Células Escamosas/diagnóstico por imagen , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Melanoma/diagnóstico por imagen , Melanoma/patología , Melanoma/cirugía , Persona de Mediana Edad , Glándula Pineal/diagnóstico por imagen , Glándula Pineal/cirugía , Tomografía Computarizada por Rayos XRESUMEN
We reviewed 21 patients who underwent salvage treatment after a biopsy of proven locally recurrent carcinoma of the oropharynx. Two of these patients underwent a second salvage treatment after failure of the first. Treatment was performed with Ir192 interstitial implant in 17 cases (13 rT1 and 4 rT2); by surgery in five cases (3 rT1, 1 rT2, 1 rTx), including two patients who had relapsed after salvage treatment with Ir192 implant; and by hyperfractionated external beam irradiation plus concomitant Tegafur chemotherapy in one case (rT3). The primary tumour was controlled in four of the 17 cases (23 per cent) treated with Ir192 implant. Of these four patients, two remained disease-free 42 and 59 months after treatment, one died of nodal metastases eight months after treatment and another of distant metastases 19 months after treatment. Four of the five cases (80 per cent) treated with surgery, including two patients who relapsed after salvage brachytherapy, remained free from local, regional and distant relapse 21, 25, 31 and 56 months after treatment.
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Braquiterapia , Carcinoma de Células Escamosas/radioterapia , Recurrencia Local de Neoplasia/radioterapia , Neoplasias Orofaríngeas/radioterapia , Terapia Recuperativa , Carcinoma de Células Escamosas/cirugía , Terapia Combinada , Estudios de Seguimiento , Humanos , Recurrencia Local de Neoplasia/cirugía , Neoplasias Orofaríngeas/cirugíaRESUMEN
PURPOSE: This paper presents a three-year teledermatology evaluation experience. The aim is to explain the methodology followed, present the evaluation results, discuss critically the issues that emerged during the experience and report the main lessons learned. METHODS: A complete design and evaluation methodology was conducted to fully address significant issues arising from other previous teledermatology experiences. First, system-design requirements and image quality issues were studied. Then, a detailed clinical concordance study was undertaken to determine the accuracy of diagnoses made using teledermatology in order to assess different dermatological clinics. Finally, an impact study on the health system was performed. Furthermore, clinical, technical, social and alignment outcomes were analyzed during the study and at the end of it, in order to understand how emerging factors affected the final setup of the teledermatology system. RESULTS: The most important results reported in this study can be summarized as follows. (1) A complete web-based environment for teledermatology support was developed as a result of a dynamic evaluation process with clinical personnel. (2) A total of 120 teleconsultations (82 pediatric and 28 adult) were made during the clinical concordance study. Concordance analysis was carried out for each dermatological disease group. High concordance rates were found in pediatrics for inflammatory dermatoses (76%) and also for adults (75%) with infections and infestations. (3) Physicians were satisfied with the teledermatology system but the time dedicated to consultation in primary care was a limiting factor (19min for each teleconsultation). (4) An extensive discussion about the successful and the limiting aspects of the teledermatology experience revealed the reasons behind the final decision not to proceed with its implementation. It was considered not to be aligned with Health Care Organization (HCO) strategy and consequently did not achieve high-level support for its long-term implementation. CONCLUSIONS: A high degree of diagnostic accuracy both for pediatric and adult consultations was achieved using the teledermatology system with affordable technical requirements. Its usefulness for filtering dermatological referrals was also demonstrated in the study. Nevertheless, other factors such as the reorganization required for the physicians' time schedule, remuneration issues, absence of EHR (electronic health record) integration and lack of interaction with the HCO were important limiting factors. This led to the conclusion that under the evaluation conditions long-term set-up was not possible. It was also concluded that HCO participation would have been essential for both the evaluation study and the long-term set-up of the system.
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Dermatología , Variaciones Dependientes del Observador , Consulta Remota , Enfermedades de la Piel/diagnóstico , Telemedicina , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Remuneración , Reproducibilidad de los Resultados , Adulto JovenRESUMEN
OBJECT: The indications for additional radiotherapy (RT) after surgery for non-functioning pituitary adenoma are controversial. The goal of this retrospective study was to evaluate the outcome of surgically treated patients, with or without post- operative irradiation. METHODS: Review of cases treated for non-functioning pituitary adenoma. Fifty-one patients were identified, with a mean post-operative follow-up of 6.4+/-3.5 yr. Twenty-nine patients showed residual tumor after surgery and 22 did not. Serial endocrine, visual and radiological evaluations were made after treatment to assess the efficacy and toxicity of surgery and RT. Twenty-seven patients with residual tumor after surgery received RT (22 of them during the post-operative period and 5 after an interval of several yr: 3 because of increased tumor size and 2 with stable residual lesion); tumors in 14 of these patients decreased in size, 11 appeared to be stable on imaging and one patient showed some increase in tumor size (one patient was not followed-up). The residual tumors of the 2 non-irradiated patients remained stable after 5 and 7 yr, respectively. Twenty-two patients without residual disease after surgery (11 with post-operative irradiation, 1 with RT 5 yr after transsphenoidal surgery because of tumor recurrence, and 10 without RT) have shown no evidence of tumor regrowth on serial images. CONCLUSIONS: Radiotherapy can be avoided in patients with complete macroscopic resection and absence of residual tumor in post-operative images; they must be carefully followed using imaging techniques and, in the case of recurrence, they should be re-operated and/or irradiated.
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Adenoma/tratamiento farmacológico , Neoplasias Hipofisarias/terapia , Adenoma/diagnóstico por imagen , Adenoma/radioterapia , Adenoma/orina , Adulto , Terapia Combinada , Femenino , Estudios de Seguimiento , Hormonas/sangre , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Procedimientos Neuroquirúrgicos , Neoplasias Hipofisarias/radioterapia , Neoplasias Hipofisarias/cirugía , Cuidados Posoperatorios , Tomografía Computarizada por Rayos X , Resultado del Tratamiento , Ultrasonografía , Visión Ocular/fisiologíaRESUMEN
The presence of NK-cells in a series of 40 metastatic brain tumours has been studied by means of the monoclonal antibody IOT-10. There appeared IOT-10 NK-cells in all tumours studied, but in most cases these cells represented less than 10% of the tumour infiltrating lymphocytes (TIL). In the present series, the obtained data suggest that the number of NK-cells in brain metastases can be influenced by other factors than the mere quantity of TIL.
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Neoplasias Encefálicas/secundario , Células Asesinas Naturales/patología , Adenocarcinoma/inmunología , Adenocarcinoma/patología , Anticuerpos Monoclonales , Neoplasias Encefálicas/inmunología , Neoplasias Encefálicas/patología , Carcinoma/inmunología , Carcinoma/patología , Carcinoma de Células Pequeñas/inmunología , Carcinoma de Células Pequeñas/patología , Carcinoma de Células Escamosas/inmunología , Carcinoma de Células Escamosas/patología , Neoplasias del Colon/inmunología , Neoplasias del Colon/patología , Femenino , Humanos , Neoplasias Renales/inmunología , Neoplasias Renales/patología , Neoplasias Pulmonares/inmunología , Neoplasias Pulmonares/patología , Masculino , Persona de Mediana Edad , Neoplasias de la Vejiga Urinaria/inmunología , Neoplasias de la Vejiga Urinaria/patologíaRESUMEN
As a part of the SAMAR 89 Project on mental health, we present the results of a psychiatric epidemiological research (in two stages) in a representative sample of the elderly urban population of Zaragoza (Spain). We study the relation between psychological disorders and sociodemographic factors, and network and social support. In the first stage we use a adaptation of the Enquête Santé Quebec and the General Health Questionnaire of 28 items of Goldberg. The Clinical Interview Schedule and the monumental state of Folstein were used for the psychiatric diagnoses in the second stage (diagnoses criteria of the DSM-III). The psychological disorders were more frequent on the women, the more aged and the ones of low socioeconomic level. Also was detected a correspondence between bad mental health and problems in the network and social support.
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Trastornos Mentales/epidemiología , Factores de Edad , Anciano , Femenino , Encuestas Epidemiológicas , Humanos , Masculino , Factores Sexuales , Apoyo Social , Factores Socioeconómicos , España/epidemiología , Encuestas y Cuestionarios , Población UrbanaRESUMEN
A patient with uvular cancer presented with lower limb weakness and paresthesiae, headache, neck stiffness and multiple cranial palsies. No malignant cells were found on lumbar puncture. CT, and MRI were normal. Gadolinium-DTPA MRI disclosed multiple enhancing lesions consistent with leptomeningeal metastases. Gd-DTPA MRI is the best technique to demonstrate tumoral meningeal infiltration in cytology-negative patients suspected of having leptomeningeal metastases.
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Carcinoma de Células Escamosas/secundario , Imagen por Resonancia Magnética , Neoplasias Meníngeas/secundario , Compuestos Organometálicos , Neoplasias Palatinas/patología , Ácido Pentético , Úvula , Carcinoma de Células Escamosas/diagnóstico , Medios de Contraste , Gadolinio , Gadolinio DTPA , Humanos , Masculino , Neoplasias Meníngeas/diagnóstico , Persona de Mediana EdadRESUMEN
Thirty adult patients presenting with medulloblastoma between 1974 and 1991 were studied and treated at Puerta de Hierro Clinic. After diagnosis, all patients were treated by surgery followed by radiotherapy and eight of them received adjuvant chemotherapy. We have studied the influence of some factors such as age, sex, location of tumour in the cerebellum, amount of surgical resection and histological variants on survival and recurrence of the disease. Only the histological type has a statistically significant influence on survival and recurrence: we have found that patients presenting classic medulloblastoma have a long survival and a long relapse-free interval.
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Neoplasias Cerebelosas/cirugía , Meduloblastoma/cirugía , Adolescente , Adulto , Neoplasias Cerebelosas/mortalidad , Neoplasias Cerebelosas/patología , Derivaciones del Líquido Cefalorraquídeo , Quimioterapia Adyuvante , Terapia Combinada , Irradiación Craneana , Femenino , Estudios de Seguimiento , Humanos , Hidrocefalia/mortalidad , Hidrocefalia/patología , Hidrocefalia/cirugía , Masculino , Meduloblastoma/mortalidad , Meduloblastoma/patología , Persona de Mediana Edad , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/patología , Recurrencia Local de Neoplasia/cirugía , Estadificación de Neoplasias , Radioterapia Adyuvante , Estudios Retrospectivos , Tasa de SupervivenciaRESUMEN
BACKGROUND: Irradiation of the pituitary is widely considered the most appropriate treatment for patients with Cushing's disease in whom transsphenoidal microsurgery has been unsuccessful. However, there is little information about the long-term efficacy of this treatment. METHODS: We used external pituitary radiation to treat 30 adult patients with persistent or recurrent Cushing's disease after unsuccessful transsphenoidal surgery. The mean (+/-SD) dose of radiation was 50+/-1 Gy. Pituitary and adrenal function was assessed every six months after radiation therapy. Remission was defined as the regression of symptoms and signs of Cushing's syndrome, normal urinary cortisol excretion, and a low plasma cortisol concentration in the morning after the administration of 1 mg of dexamethasone at midnight. RESULTS: Twenty-five patients (83 percent) had remissions during a median follow-up of 42 months (range, 18 to 114). The remissions began 6 to 60 months after radiation therapy, but in most cases (22 patients) remission occurred during the first 2 years. None of the 25 patients had a relapse of Cushing's disease after remission was achieved. There was no relation between the response to radiotherapy and sex, age, urinary cortisol excretion before radiotherapy, the interval between surgery and radiotherapy, whether a pituitary adenoma was found by pathological examination, or tumor size. Seventeen patients had a deficiency of growth hormone after radiation therapy, 10 had a deficiency of gonadotropins, 4 had a deficiency of thyrotropin, and 1 had a deficiency of corticotropin. CONCLUSIONS: Pituitary irradiation is an effective and well-tolerated treatment for patients with Cushing's disease in whom transsphenoidal surgery is unsuccessful.
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Síndrome de Cushing/radioterapia , Hipófisis/cirugía , Irradiación Hipofisaria , Adolescente , Adulto , Síndrome de Cushing/sangre , Síndrome de Cushing/cirugía , Síndrome de Cushing/orina , Femenino , Estudios de Seguimiento , Humanos , Hidrocortisona/sangre , Hidrocortisona/orina , Masculino , Persona de Mediana Edad , Hormonas Adenohipofisarias/sangre , Irradiación Hipofisaria/efectos adversos , Recurrencia , Inducción de Remisión/métodos , Insuficiencia del Tratamiento , Resultado del TratamientoRESUMEN
We reviewed 90 patients with squamous cell carcinoma of the base of the tongue. Fifty-three patients were treated with external beam radiotherapy alone (3 T1, 11 T2, 21 T3, and 18 T4 tumors) and thirty-seven patients were treated with external beam radiotherapy plus brachytherapy boost (4 T1, 15 T2, 11 T3, and 7 T4 tumors). For patients with T1, T2 and T3 primaries, the actuarial 3-year local relapse-free survival was 42% following external beam radiotherapy alone and 67% following external beam radiotherapy plus brachytherapy (p < 0.05). The actuarial 3-year cause specific survival for these T-stages was 37% for patients treated with external beam radiotherapy alone and 53% for patients treated with external beam radiotherapy plus brachytherapy (p = 0.1). In the Cox multivariate analyses restricted patients with T1, T2 and T3 staged tumors, treatment modality was the only predictor for local control but no influence on specific survival was found. The trend towards significant differences in specific survival found in the univariate comparison of both treatment modalities was probably due to the significantly higher number of N-positive patients treated with external beam radiotherapy alone. When all stages were included in the Cox analysis, low hemoglobin level, invasion of deep muscle, number of palpable nodes, and history of weight loss significantly influenced the outcome. Soft tissue necrosis occurred more frequently in patients treated with external beam radiotherapy plus brachytherapy (33% vs. 10%, p = 0.52).