94 research outputs found
Estudio de factibilidad para la creación de una cooperativa de transporte público terrestre en la cabecera del Municipio De Aracataca-Magdalena
El objetivo del presente trabajo es el de realizar un estudio de factibilidad para demostrar la viabilidad de crear una Cooperativa de Transporte Público terrestre en la cabecera del Municipio de Aracataca-Magdalena. Para la realización se seleccionaron como elementos fundamentales, el entorno empresarial, el estudio de mercado, ingeniería, legal, financiero y organizativo. En el se pretendió señalar los aspectos básicos que anteceden a la implementación de dicha cooperativa, es decir, el plan para la creación ésta empresa asociativa. La investigación es de carácter descriptiva. La información se recolectó en un 20% mediante entrevistas realizadas a las personas propietarias de vehículos e interesadas en constituir la Cooperativa. En un 60%, se hizo mediante encuestas aplicadas a una muestra representativa de posibles usuarios del servicio de transporte y en un 20% de las fuentes de información secundarias, como fueron los diferentes textos bibliográficos utilizados y en especial, la Ley 79 de 1988 y las normas del INTRA. La problemática del transporte público en Aracataca amerita una solución pronta, lo cual motivó la realización del presente trabajo, para dar respuesta a la necesidad de atender en forma oportuna y suficiente, las necesidades de transporte de la población y de los productos agropecuarios, y solucionar así un problema concreto, de tipo socioeconómico que afecta a Aracataca y sus alrededores Los resultados obtenidos de éste proyecto pueden servir como marco de referencia a temáticas similares que efectúen investigadores sociales o economistas interesados en elevar el nivel de vida de la población objetivo
Secondary malignancies after high-dose chemotherapy in germ cell tumor patients: A 34-year retrospective study of the European Society for Blood and Marrow Transplantation (EBMT)
We aimed to assess the incidence and risk factors of secondary malignancy (SM) in the young adult patients who received high-dose chemotherapy (HDCT) for germ cell tumors (GCT). The EBMT database was interrogated. Criteria for patient selection included adult male GCT and HDCT administered in any line of therapy. Cumulative incidence methods were used to estimate the time-to-SM diagnosis. Univariable Fine and Gray proportional hazard regression evaluated risk factors of SM occurrence. From 1981 to 2015, 9153 autografts were identified. Among 5295 patients, 59 cases of SM, developed after a median follow-up of 3.8 years, were registered. Of these patients, 23 (39%) developed hematologic SM, 34 (57.6%) solid SM (two patients had uncoded SM). Twenty-year cumulative incidence of solid versus hematologic SM was 4.17% (95% CI: 1.78-6.57) versus 1.37% (95% CI: 0.47-2.27). Median overall survival after SM was significantly shorter for patients who developed hematologic SM versus solid SM (8.6 versus 34.4 months, p = 0.003). Age older than 40 years at the time of HDCT was significantly associated with hematologic, but not solid, SM development (p = 0.004 versus p = 0.234). SM occurrence post-HDCT showed different patterns of incidence and mortality in GCT. These data may be important to optimize patient selection, counseling and follow-up after HDCT
Hematopoietic stem cell therapy for autoimmune diseases - Clinical experience and mechanisms
With accumulating evidence and improved outcomes along with recognition that modern biological therapies are not universally effective, require chronic administration and have high acquisition costs, hematopoietic stem cell transplantation (HSCT) has become an emerging direction for cell therapy in autoimmune diseases (ADs). The goal of this therapy is to induce medication-free remissions by resetting the immune system into a naïve and self-tolerant state through eradication of the autoreactive immunologic memory and profound re-configuration of the immune system induced by the transplant procedure. Safety of HSCT has generally improved by implementing internal quality management and external accreditation. Inter-disciplinary guidelines for patient selection, transplant technique and supportive care along with greater center experience should optimize safe and appropriate delivery of HSCT in specific ADs. In this review, we discuss the current role and future perspectives of HSCT in AD, focusing on recent published clinical and scientific studies and recommendations in the field
Salvage high-dose chemotherapy in female patients with relapsed/refractory germ-cell tumors: A retrospective analysis of the European Group for Blood and Marrow Transplantation (EBMT)
Background: High-dose chemotherapy (HDC) with hematopoietic progenitor cell transplantation is a standard option for relapsed/refractory testicular germ-cell tumor (GCT), but only few data have been reported in female patients with GCT. We conducted a retrospective analysis of female patients with GCT treated with HDC and registered with the European Society for Blood and Marrow Transplantation. Patients and methods: Between 1985 and 2013, 60 registered female patients with GCT, median age 27 years (range 15-48), were treated with salvage HDC. Forty patients (67%) had primary ovarian GCT, 8 (13%) mediastinal, 7 (12%) retroperitoneal and 5 (8%) other primary sites/unknown. Twenty-two patients (37%) received HDC as second-line therapy, 29 (48%) as third-line, and 9 (15%) as fourth- to sixth-line. Nine of 60 patients (15%) received HDC as late-intensification with no evidence of metastasis before HDC. The conditioning HDC regimens comprised carboplatin in 51 of 60 cases (85%), and consisted of a single HDC cycle in 31 cases (52%), a multi-cycle HDC regimen in 29 (48%). Results: Nine cases who underwent late intensification HDC were not evaluable for response. Of the other 51 assessable patients, 17 (33%) achieved a complete response (CR), 8 (16%) a marker-negative partial remission (PRm-), 5 (10%) a marker-positive partial remission, 5 (10%) stable disease, and 13 (25%) progressive disease. There were 3 toxic deaths (6%). With an overall median follow-up of 14 months (range 1-219), 7 of 9 (78%) patients with late intensification and 18 of the 25 patients (72%) achieving a CR/PRm- following HDC were free of relapse/progression. In total, 25 of 60 patients (42%) were progression-free following HDC at a median follow-up of 87 months (range 3-219 months). Conclusions: Salvage HDC based on carboplatin represents a therapeutic option for female patients with relapsed/refractory GCT
High-Dose Chemotherapy and Autologous Hematopoietic Stem Cell Transplantation as Adjuvant Treatment in High-Risk Breast Cancer: Data from the European Group for Blood and Marrow Transplantation Registry.
The aim of this retrospective study was to assess toxicity and efficacy of adjuvant high-dose chemotherapy (HDC) and autologous hematopoietic stem cell transplantation (AHSCT) in 583 high-risk breast cancer (BC) patients (>3 positive nodes) who were transplanted between 1995 and 2005 in Europe. All patients received surgery before transplant, and 55 patients (9.5%) received neoadjuvant treatment before surgery. Median age was 47.1 years, 57.3% of patients were premenopausal at treatment, 56.5% had endocrine-responsive tumors, 19.5% had a human epidermal growth factor receptor 2 (HER2)-negative tumor, and 72.4% had ≥10 positive lymph nodes at surgery. Seventy-nine percent received a single HDC procedure. Overall transplant-related mortality was 1.9%, at .9% between 2001 and 2005, whereas secondary tumor-related mortality was .9%. With a median follow-up of 120 months, overall survival and disease-free survival rates at 5 and 10 years in the whole population were 75% and 64% and 58% and 44%, respectively. Subgroup analysis demonstrated that rates of overall survival were significantly better in patients with endocrine-responsive tumors, <10 positive lymph nodes, and smaller tumor size. HER2 status did not affect survival probability. Adjuvant HDC with AHSCT has a low mortality rate and provides impressive long-term survival rates in patients with high-risk BC. Our results suggest that this treatment modality should be considered in selected high-risk BC patients and further investigated in clinical trials
Autologous stem cell transplantation in refractory Crohn's disease - low intensity therapy evaluation (ASTIClite):study protocols for a multicentre, randomised controlled trial and observational follow up study
Autologous hematopoietic stem cell transplantation for Behçet’s disease: a retrospective survey of patients treated in Europe, on behalf of the autoimmune diseases working party of the European Society for Blood and Marrow Transplantation
Background: Behçet’s Disease (BD) is an autoimmune disease mostly presenting with recurrent oral and genital aphthosis, and uveitis. Patients are rarely refractory to immunosuppressive treatments. Autologous hematopoietic stem cell transplantation (aHSCT) is a standard of care in other autoimmune diseases. Some patients with BD have been treated with aHSCT based on compassionate use.
Objectives: Evaluate the outcome of aHSCT in adult patients with BD treated in member centers of the European Society for Blood and Marrow Transplantation (EBMT).
Methods: Adults who received aHSCT primarily for BD were identified retrospectively in the EBMT registry and/or in published literature. Data were extracted from either medical records of the patient or from publications.
Results: Eight out of 9 cases reported to the registry and extracted data of 2 further patients from literature were analyzed. Four were female, median age at onset of BD was 24y (range 9-50). Median age at aHSCT was 32y (27-51). Patients had received median 4 (2-11) previous lines of therapy (89% corticosteroids, 50% methotrexate, anti-TNFα therapy or cyclophosphamide). All patients had active disease before mobilization. Conditioning regimen was heterogeneous. Median follow-up was 48 months (range 6-240). No treatment-related mortality was reported. This procedure induced complete remission (CR) in 80%, partial remission in 10% and lack of response in 10% of the patients. Relapse rate was 30% (2 relapses in patients in CR and 1 relapse in the patient in PR) with panuveitis (n=1), aphthosis (n=2) and arthralgia (n=1). Six patients were in CR. No late complications were reported.
Conclusion: aHSCT has an acceptable safety profile and represents a feasible and relatively effective procedure in severe and conventional treatment-resistant cases of BD and has the potential to stabilize BD in patients with life-threatening involvements
Long-Term Outcomes of Hematopoietic Stem Cell Transplantation for Severe Treatment-Resistant Autoimmune Cytopenia in Children
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Allogeneic stem cell transplantation for patients with advanced rhabdomyosarcoma: A retrospective assessment
BACKGROUND: Allogeneic haematopoietic stem cell transplantation (allo-SCT) may provide donor cytotoxic T cell-/NK cell-mediated disease control in patients with rhabdomyosarcoma (RMS). However, little is known about the prevalence of graft-vs-RMS effects and only a few case experiences have been reported. METHODS: We evaluated allo-SCT outcomes of 30 European Group for Blood and Marrow Transplantation (EBMT)-registered patients with advanced RMS regarding toxicity, progression-free survival (PFS) and overall survival (OS) after allo-SCT. Twenty patients were conditioned with reduced intensity and ten with high-dose chemotherapy. Twenty-three patients were transplanted with HLA-matched and seven with HLA-mismatched grafts. Three patients additionally received donor lymphocyte infusions (DLIs). Median follow-up was 9 months. RESULTS: Three-year OS was 20% (s.e.±8%) with a median survival time of 12 months. Cumulative risk of progression was 67% (s.e.±10%) and 11% (s.e.±6%) for death of complications. Thirteen patients developed acute graft-vs-host disease (GvHD) and five developed chronic GvHD. Eighteen patients died of disease and four of complications. Eight patients survived in complete remission (CR) (median: 44 months). No patients with residual disease before allo-SCT were converted to CR. CONCLUSION: The use of allo-SCT in patients with advanced RMS is currently experimental. In a subset of patients, it may constitute a valuable approach for consolidating CR, but this needs to be validated in prospective trials
Gender Asymmetry in Okun's Law in the Four PIGS Countries
AbstractCentred on the four PIGS countries (Portugal, Italy, Greece and Spain) and using the quarterly data from Q2/1998 until Q4/2014, the paper investigates whether there exists gender asymmetries in Okun's law and whether male unemployment reacts identically to economic fluctuations as female unemployment does. Whilst the trend components of output, male and female unemployment are estimated with the aid of the HP filter, Okun's relationships are modelled in the SVAR framework assuming that cyclical fluctuations of the economy and the labour market with both male and female labour force are endogenous. It is established that gender is indeed a factor that makes the respective segments of the labour market respond slightly differently to changes in real output
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