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1.
Ann Hematol ; 95(9): 1399-410, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27334946

RESUMEN

Philadelphia-negative myeloproliferative neoplasms (MPN) comprise a heterogeneous group of chronic hematological malignancies with significant variations in clinical characteristics. Due to the long survival and the feasibility of oral or subcutaneous therapy, these patients are frequently treated outside of larger academic centers. This analysis was performed to elucidate differences in MPN patients in three different health care settings: university hospitals (UH), community hospitals (CH), and office-based physicians (OBP). The MPN registry of the Study Alliance Leukemia is a non-interventional prospective study including adult patients with an MPN according to WHO criteria (2008). For statistical analysis, descriptive methods and tests for significant differences were used. Besides a different distribution of MPN subtypes between the settings, patients contributed by UH showed an impaired medical condition, a higher comorbidity burden, and more vascular complications. In the risk group analyses, the majority of polycythemia vera (PV) and essential thrombocythemia (ET) patients from UH were classified into the high-risk category due to previous vascular events, while for PV and ET patients in the CH and OBP settings, age was the major parameter for a high-risk categorization. Regarding MPN-directed therapy, PV patients from the UH setting were more likely to receive ruxolitinib within the framework of a clinical trial. In summary, the characteristics and management of patients differed significantly between the three health care settings with a higher burden of vascular events and comorbidities in patients contributed by UH. These differences need to be taken into account for further analyses and design of clinical trials.


Asunto(s)
Atención a la Salud/estadística & datos numéricos , Trastornos Mieloproliferativos/terapia , Índice de Severidad de la Enfermedad , Evaluación de Síntomas/estadística & datos numéricos , Anciano , Anciano de 80 o más Años , Distribución de Chi-Cuadrado , Atención a la Salud/métodos , Femenino , Hospitales Comunitarios/estadística & datos numéricos , Hospitales Universitarios/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Trastornos Mieloproliferativos/complicaciones , Trastornos Mieloproliferativos/genética , Evaluación de Resultado en la Atención de Salud/métodos , Evaluación de Resultado en la Atención de Salud/estadística & datos numéricos , Cromosoma Filadelfia , Médicos/estadística & datos numéricos , Consultorios Médicos/estadística & datos numéricos , Estudios Prospectivos , Sistema de Registros/estadística & datos numéricos , Factores de Riesgo , Evaluación de Síntomas/métodos
2.
Br J Cancer ; 92(12): 2122-8, 2005 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-15942629

RESUMEN

An open-label randomised comparison of efficacy and tolerability of irinotecan plus high-dose 5-fluorouracil (5-FU) and leucovorin (LV) (ILF) with etoposide plus 5-FU/LV (ELF) in patients with untreated metastatic or locally advanced gastric cancer. One cycle of ILF comprised six once-weekly infusions of irinotecan 80 mg m(-2), LV 500 mg m(-2), 24-h 5-FU 2000 mg m(-2), and ELF comprised three once-daily doses of etoposide 120 mg m(-2), LV 300 mg m(-2), 5-FU 500 mg m(-2). In all, 56 patients received ILF and 58 ELF. Median age was 62 years, Karnofsky performance 90%, and disease status was comparable for both arms. The objective clinical response rates after 14 weeks treatment (primary end point) were 30% for ILF and 17% for ELF (risk ratio (RR) 0.57, 95% confidence interval (CI) 0.29-1.13, P = 0.0766). Overall response rates over the entire treatment period for ILF and ELF were 43 and 24%, respectively (RR 0.56, 95% CI 0.33-0.97; P = 0.0467). For ILF and ELF, respectively, median progression-free survival was 4.5 vs 2.3 months, time to treatment failure was 3.6 vs 2.2 months (P = 0.4542), and overall survival was 10.8 vs 8.3 months (P = 0.2818). Both regimens were well tolerated, the main grade 3/4 toxicities being diarrhoea (18%, ILF) and neutropenia (57%, ELF). The data from this randomised phase II study indicate that ILF provides a better response rate than ELF, and that ILF should be investigated further for the treatment of metastatic gastric cancer.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias Peritoneales/tratamiento farmacológico , Neoplasias Gástricas/tratamiento farmacológico , Adenocarcinoma/secundario , Adulto , Anciano , Camptotecina/administración & dosificación , Camptotecina/análogos & derivados , Unión Esofagogástrica , Etopósido/administración & dosificación , Femenino , Fluorouracilo/administración & dosificación , Humanos , Irinotecán , Leucovorina/administración & dosificación , Levoleucovorina , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Peritoneales/secundario , Neoplasias Gástricas/patología , Análisis de Supervivencia , Resultado del Tratamiento
3.
Q J Exp Psychol A ; 53(3): 647-60, 2000 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-10994222

RESUMEN

Service (1998) carried out a study of the word length effect with Finnish pseudowords in which short and long pseudowords were identical except for the inclusion of certain phonemes differing only in pronunciation length, a manipulation that is impossible in English. She obtained an effect of phonemic complexity but little or no word duration effect per se--a discrepancy from the expectations generated by the well-known working memory model of Baddeley (1986). In the present study using English words, we controlled for phonemic complexity differences by using the same words for the short- and long-word sets, but with instructions inducing shorter or longer pronunciation of the words. We obtained substantial word duration effects. Concerns raised by Service are addressed, and we conclude that both duration and complexity are likely to contribute to the word length effect in serial recall.


Asunto(s)
Memoria a Corto Plazo , Fonética , Aprendizaje Seriado , Adulto , Femenino , Humanos , Masculino , Recuerdo Mental , Modelos Psicológicos , Factores de Tiempo
4.
Blood ; 91(10): 3601-6, 1998 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-9572994

RESUMEN

In 105 consecutive patients with de novo acute myeloid leukemia (French-American-British M3 excluded), we compared prospectively the risk of bleeding complications, the number of platelet and red blood cell transfusions administered, and the costs of transfusions using two different prophylactic platelet transfusion protocols. Two hundred sixteen cycles of induction or consolidation chemotherapy and 3,843 days of thrombocytopenia less than 25 x 10(9)/L were evaluated. At the start of the study, each of the 17 participating centers decided whether they would use a 10 x 10(9)/L prophylactic platelet transfusion trigger (group A/8 centers) or a 20 x 10(9)/L trigger (group B/9 centers). Bleeding complications (World Health Organization grade 2-4) during treatment cycles were comparable in the two groups: 20 of 110 (18%) in group A and 18 of 106 (17%) in group B (P = .8). Serious bleeding events (grade 3-4) were generally not related to the patient's platelet count but were the consequence of local lesions and plasma coagulation factor deficiencies due to sepsis. Eighty-six percent of the serious bleeding episodes occurred during induction chemotherapy. No patient died of a bleeding complication. There were no significant differences in the number of red blood cell transfusions administered between the two groups, but there were significant differences in the number of platelet transfusions administered per treatment cycle: pooled random donor platelet concentrates averaged 15.4 versus 25.4 (P < .01) and apheresis platelets averaged 3.0 versus 4.8 (P < .05) for group A versus group B, respectively. This resulted in the cost of platelet therapy being one third lower in group A compared with group B without any associated increase in bleeding risk.


Asunto(s)
Hemorragia/prevención & control , Leucemia Mieloide/sangre , Recuento de Plaquetas , Transfusión de Plaquetas , Trombocitopenia/terapia , Enfermedad Aguda , Adolescente , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Análisis Costo-Beneficio , Transfusión de Eritrocitos/estadística & datos numéricos , Hemorragia/epidemiología , Hemorragia/etiología , Humanos , Leucemia Mieloide/complicaciones , Leucemia Mieloide/tratamiento farmacológico , Persona de Mediana Edad , Transfusión de Plaquetas/efectos adversos , Transfusión de Plaquetas/economía , Transfusión de Plaquetas/estadística & datos numéricos , Plaquetoferesis/economía , Estudios Prospectivos , Riesgo , Seguridad , Índice de Severidad de la Enfermedad , Trombocitopenia/inducido químicamente
5.
Med Klin (Munich) ; 91 Suppl 3: 26-32, 1996 Apr 12.
Artículo en Alemán | MEDLINE | ID: mdl-8692115

RESUMEN

BACKGROUND: To study intensive postremission therapy in adult patients with acute myeloid leukemia myeloablative therapy followed by allogeneic or unpurged autologous bone marrow transplantation (BMT) was compared with high-dose cytosine-arabinoside/daunorubicin (HDAC) consolidation. PATIENTS AND METHODS: 148 de novo AML patients of maximum 50 years (median 36 years, range 16 to 50) were enrolled in the trial. Following induction and early consolidation chemotherapy consisting of daunorubicin, cytosine-arabinoside and VP-16 (DAV), patients with an HLA-identical sibling underwent allogeneic BMT. The other patients received (by randomization or patient's decision) either HDAC or high-dose busulfan plus cyclophosphamide followed by autologous BMT. RESULTS: Hundred and five 105 (70.9%) patients achieved a complete remission. The event-free survival rates after intensive postremission therapy after 72 months were: after BMT (24 patients) 62% (95% confidence interval +/- 19%), after HDAC (44 patients) 36 +/- 16% and after autologous BMT (12 patients) 18 +/- 22%. Thus allogeneic BMT was superior to autologous BMT (p = 0.04), as was HDAC compared to autologous BMT, although not significantly so (p = 0.15). Patients receiving 2 cycles of HDAC had a better 6-year event-free survival rate (47%) and a lower relapse rate (50%) than patients who received only 1 course (29% and 70% respectively). CONCLUSIONS: High-dose busulfan/cyclophosphamide followed by unpurged autologous BMT early after achieving CR had no advantage over high-dose ara-c/daunorubicin. Two cycles of HDAC yielded better results than 1 cycle. The highest event-free survival rate was reached with myeloablative therapy followed by allogeneic BMT.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Trasplante de Médula Ósea , Leucemia Mieloide Aguda/terapia , Inducción de Remisión , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Terapia Combinada , Citarabina/administración & dosificación , Citarabina/efectos adversos , Daunorrubicina/administración & dosificación , Daunorrubicina/efectos adversos , Etopósido/administración & dosificación , Etopósido/efectos adversos , Femenino , Estudios de Seguimiento , Humanos , Leucemia Mieloide Aguda/mortalidad , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Tasa de Supervivencia , Resultado del Tratamiento
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