1,013 research outputs found
Spectrum of glaucoma presentation in a Nigerian Tertiary Hospital
Purpose: The aim of this study was to report the types and severity of glaucoma at presentation in patients attending the glaucoma clinic of the University College Hospital, Ibadan, Nigeria. This information will help in designing an awareness and management strategy that will help in reducing glaucoma blindness.Materials and Methods: Consecutive new glaucoma patients of all age groups who presented to the glaucoma clinic of the University College Hospital, Ibadan, over a 1-year period between January and December 2009 were evaluated. Each patient had a complete ophthalmic evaluation, including intraocular pressure (IOP), visual acuity, visual fi eld, optic disc assessment and gonioscopy.Results: A total of 336 patients (669 eyes) presented with glaucoma (mean age was 56.5 ± 16.5, 56.3% male) during this period. The mean presenting IOP was 23 ± 11.6 mmHg and 48.5% of the 669 eyes evaluated had severe glaucoma (MD > −12dB, cup to disc ratio of ≥0.9). Primary open angle glaucoma (POAG) was the most common form (51.2%), glaucoma suspects were 55 (16.4%), 66 (19.6%) patients had normal tension glaucoma (NTG), 28 (8.3%) patients had primary angle closure glaucoma (PACG), and 15 (4.5%) patients had secondary glaucoma.Conclusion: POAG is the most common form of glaucoma seen in the glaucoma sub-specialty clinic in Nigeria. NTG and PACG were common in this case series. A large proportion of the patients had advanced disease at presentation.Keywords: Glaucoma, Nigeria, types, and glaucoma severit
G-CSF Prevents the Progression of Structural Disintegration of White Matter Tracts in Amyotrophic Lateral Sclerosis: A Pilot Trial
Background: The hematopoietic protein Granulocyte-colony stimulating factor (G-CSF) has neuroprotective and regenerative properties. The G-CSF receptor is expressed by motoneurons, and G-CSF protects cultured motoneuronal cells from apoptosis. It therefore appears as an attractive and feasible drug candidate for the treatment of amyotrophic lateral sclerosis (ALS). The current pilot study was performed to determine whether treatment with G-CSF in ALS patients is feasible.Methods: Ten patients with definite ALS were entered into a double-blind, placebo-controlled, randomized trial. Patients received either 10 mu g/kg BW G-CSF or placebo subcutaneously for the first 10 days and from day 20 to 25 of the study. Clinical outcome was assessed by changes in the ALS functional rating scale (ALSFRS), a comprehensive neuropsychological test battery, and by examining hand activities of daily living over the course of the study (100 days). The total number of adverse events (AE) and treatment-related AEs, discontinuation due to treatment-related AEs, laboratory parameters including leukocyte, erythrocyte, and platelet count, as well as vital signs were examined as safety endpoints. Furthermore, we explored potential effects of G-CSF on structural cerebral abnormalities on the basis of voxel-wise statistics of Diffusion Tensor Imaging (DTI), brain volumetry, and voxel-based morphometry.Results: Treatment was well-tolerated. No significant differences were found between groups in clinical tests and brain volumetry from baseline to day 100. However, DTI analysis revealed significant reductions of fractional anisotropy (FA) encompassing diffuse areas of the brain when patients were compared to controls. On longitudinal analysis, the placebo group showed significant greater and more widespread decline in FA than the ALS patients treated with G-CSF.Conclusions: Subcutaneous G-CSF treatment in ALS patients appears as feasible approach. Although exploratory analysis of clinical data showed no significant effect, DTI measurements suggest that the widespread and progressive microstructural neural damage in ALS can be modulated by G-CSF treatment. These findings may carry significant implications for further clinical trials on ALS using growth factors
Intensified chemo-immunotherapy with or without stem cell transplantation in newly diagnosed patients with peripheral T-cell lymphoma.
Prolonged survival in the absence of disease-recurrence in advanced-stage follicular lymphoma following chemo-immunotherapy: 13-year update of the prospective, multicenter randomized GITMO-IIL trial
Aprospective trial conducted in the period 2000-2005 showed no survival advantage for high-dose chemotherapy with rituximab and autograft (RHDS) versus conventional chemotherapy with rituximab (CHOP-R) as firstline therapy in 134 high-risk follicular lymphoma patients aged <60 years. The study has been updated at the 13-year median follow up. As of February 2017, 88 (66%) patients were alive, with overall survival of 66.4% at 13 years, without a significant difference between R-HDS (64.5%) and CHOP-R (68.5%). To date, 46 patients have died, mainly because of disease progression (47.8% of all deaths), secondary malignancies (3 solid tumor, 9 myelodysplasia/acute leukemia; 26.1% of all deaths), and other toxicities (21.7% of all deaths). Complete remission was documented in 98 (73.1%) patients and associated with overall survival, with 13- year estimates of 77.0% and 36.8% for complete remission versus no-complete remission, respectively. Molecular remission was documented in 39 (65%) out of 60 evaluable patients and associated with improved survival. In multivariate analysis, complete remission achievement had the strongest effect on survival (P<0.001), along with younger age (P=0.002) and female sex (P=0.013). Overall, 50 patients (37.3%) survived with no disease recurrence (18 CHOP-R, 32 R-HDS). This follow up is the longest reported on follicular lymphoma treated upfront with rituximab-chemotherapy and demonstrates an unprecedented improvement in survival compared to the pre-rituximab era, regardless of the use of intensified or conventional treatment. Complete remission was the most important factor for prolonged survival and a high proportion of patients had prolonged survival in their first remission, raising the issue of curability in follicular lymphoma
Risk assessment in diffuse large cell lymphoma at first relapse. A study by the Italian Intergroup for Lymphomas.
BACKGROUND AND OBJECTIVES: Our aim was to identify risk factors in adults with diffuse large cell lymphoma at first relapse. DESIGN AND METHODS: We studied 474 patients observed at 45 centers in Italy. Median time from diagnosis to relapse was 395 days, median age at relapse was 55 years and median follow-up from relapse was 3.3 years. Salvage therapy consisted of polychemotherapy in 79% of patients, monochemotherapy and/or radiotherapy and/or surgery alone in 16%, and palliative therapy in 5%. Salvage treatment was intensified with high-dose chemotherapy + stem cell transplant in 20% of patients. OS and PFS were compared by sex, International Prognostic Index at diagnosis, histology, B/T phenotype, initial treatment, salvage therapy, and features at relapse: time from diagnosis, LDH, stage, performance status and bone marrow involvement. Cox models, adjusted for salvage therapy, were performed with factors related to overall survival (OS) and progression-free survival (PFS). RESULTS: Overall response (complete + partial) was 63%, OS at 3 years 35% and PFS at 3 years 26%. Relapse within 12 months from diagnosis, elevated serum lactic dehydrogenase (LDH), advanced stage and poor performance status were independent adverse factors for OS and PFS. The cumulative number of adverse factors is proposed as prognostic index for DLCL at first relapse since it identifies risk groups (p<0.0001) and has been validated (p=0.01). Moreover, it predicts OS and PFS in the selected group of patients with a responsive relapse (p<0.0001). INTERPRETATION AND CONCLUSION: Delay from initial diagnosis, LDH, stage and performance status at relapse should be balanced in comparative studies of salvage therapy of adults with DLCL. Patients with more than 2 adverse factors are one third of all cases and deserve more effective salvage treatments
Treatment options in skeletal localizations of hairy cell leukemia: A systematic review on the role of radiation therapy
Skeletal localizations are a rare complication in hairy cell leukaemia patients, with an extimated incidence of 3%. These lesions, mainly osteolytic, can occur at various sites and are almost always symptomatic. Localized radiation therapy (RT) has been extensively used as effective palliative treatment in such cases, with different total doses and fractionation schedules. In this article, a systematic review of all reported cases with osseous complications is presented, to underline the role of RT and to define the most appropriate approach in this subset of patients. © 2007 Wiley-Liss, Inc
La jerarquización de la noticia política : El caso del diario gratuito La Razón en las elecciones de octubre de 2007
En el trayecto del presente estudio analítico descriptivo, se intentará comprender y reconstruir la jerarquización de la noticia política durante el período de las elecciones nacionales correspondientes al mes de octubre del año 2007, a partir de lo publicado por el diario de distribución gratuita La Razón.
Pensar cualquier práctica periodística implica el estudio de las condiciones de producción, recepción y consumo de este tipo de comunicación. Asimismo, es valioso rescatar el rol que le ocupa a la jerarquización de las noticias en el periodismo, en este caso a través de un medio de distribución gratuita.
En este sentido, se tendrá en cuenta el marco coyuntural, social, cultural y comunicacional en el que se construye la noticia y el producto gráfico, cuyas coordenadas cruzan las prácticas periodísticas actuales, observando la historia de La Razón, su perspectiva inicial y su posible coincidencia con lo que se ha convertido en la actualidad, devenido en gratuito. Se ahondará también en el contexto de los diarios vespertinos en general y en el desarrollo de los gratuitos a nivel global.
Se constituye al diario La Razón en un medio en el que resulta relevante rastrear la relación existente entre los medios de Comunicación y los procesos electorales, debido a que se trata de un medio particular, por su condición de gratuito, por ser vespertino y por su modo de distribución. Vale destacar que su surgimiento estuvo en consonancia con el auge de este tipo de diarios a nivel internacional, siendo el primer diario gratuito publicado en Latinoamericana, así como también el primer diario pago del mundo en convertirse en gratuito.Facultad de Periodismo y Comunicación Socia
Whole-body magnetic resonance imaging (WB-MRI) in lymphoma: State of the art
The improvements in magnetic resonance imaging (MRI) technology and the concern related to the increased cancer risk in patients with lymphoma, also due to radiation exposure associated with imaging examinations, have led to the introduction of whole-body MRI (WB-MRI) as a radiation-free alternative to standard imaging procedures. WB-MRI seems a less histology-dependent functional imaging test than 18F-fluorodeoxyglucose-positron emission tomography/CT (18F-FDG-PET/CT). In patients with FDG-avid lymphomas, such as diffuse large B-cell lymphoma (DLBCL) and Hodgkin lymphoma (HL), 18F-FDG-PET/CT remains the imaging reference standard for staging, with WB-MRI potentially being a complementary modality that could replace CT, especially in young patients. On the other hand, WB-MRI is a valuable imaging procedure for lymphoma surveillance and in lymphomas with variable/low FDG avidity and nonfollicular indolent lymphomas. The aim of this paper is to discuss the current state of the art of WB-MRI in lymphoma by evaluating its diagnostic performance in different lymphoma subtypes: Hodgkin, aggressive, and indolent lymphomas
Peripheral t‐cell lymphoma, not otherwise specified : Clinical manifestations, diagnosis, and future treatment
Peripheral T‐cell lymphoma, not otherwise specified (PTCL_NOS) corresponds to about one fourth of mature T‐cell tumors, which overall represent 10–12% of all lymphoid malignancies. This category comprises all T‐cell neoplasms, which do not correspond to any of the distinct entities listed in the WHO (World Health Organization) Classification of Tumours of Haematopoietic and Lymphoid Tissues. In spite of the extreme variability of morphologic features and phenotypic profiles, gene expression profiling (GEP) studies have shown a signature that is distinct from that of all remaining PTCLs. GEP has also allowed the identification of subtypes provided with prognostic relevance. Conversely to GEP, next‐generation sequencing (NGS) has so far been applied to a limited number of cases, providing some hints to better understand the pathobiology of PTCL_NOS. Although several pieces of information have emerged from pathological studies, PTCL_NOS still remains a tumor with a dismal prognosis. The usage of CHOEP (cyclophosphamide, doxorubicin, vincristine, prednisone, etoposide) followed by autologous stem cell transplantation may represent the best option, by curing about 50% of the patients whom such an approach can be applied to. Many new drugs have been proposed without achieving the expected results. Thus, the optimal treatment of PTCL_NOS remains unidentified
- …
