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1.
BMC Cancer ; 21(1): 1018, 2021 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-34511112

RESUMEN

BACKGROUND: An effective cross-cultural doctor-patient communication is vital for health literacy and patient compliance. Building a good relationship with medical staff is also relevant for the treatment decision-making process for cancer patients. Studies about the role of a specific migrant background regarding patient preferences and expectations are lacking. We therefore conducted a multicentre prospective survey to explore the needs and preferences of patients with a migrant background (PMB) suffering from gynecological malignancies and breast cancer to evaluate the quality of doctor-patient communication and cancer management compared to non-migrants (NM). METHODS: This multicentre survey recruited patients with primary or recurrence of breast, ovarian, peritoneal, or fallopian tube cancer. The patients either filled out a paper form, participated via an online survey, or were interviewed by trained staff. A 58-item questionnaire was primarily developed in German and then translated into three different languages to reach non-German-speaking patients. RESULTS: A total of 606 patients were included in the study: 54.1% (328) were interviewed directly, 9.1% (55) participated via an online survey, and 36.8% (223) used the paper print version. More than one quarter, 27.4% (166) of the participants, had a migrant background. The majority of migrants and NM were highly satisfied with the communication with their doctors. First-generation migrants (FGM) and patients with breast cancer were less often informed about participation in clinical trials (p < 0.05) and 24.5% of them suggested the help of an interpreter to improve the medical consultation. Second and third-generation migrants (SGM and TGM) experienced more fatigue and nausea than expected. CONCLUSIONS: Our results allow the hypothesis that training medical staff in intercultural competence and using disease-related patient information in different languages can improve best supportive care management and quality of life in cancer patients with migrant status.


Asunto(s)
Neoplasias de la Mama/etnología , Neoplasias de los Genitales Femeninos/etnología , Motivación , Evaluación de Necesidades , Prioridad del Paciente/etnología , Relaciones Médico-Paciente , Migrantes , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/psicología , Comunicación , Asistencia Sanitaria Culturalmente Competente/etnología , Femenino , Neoplasias de los Genitales Femeninos/psicología , Alemania , Alfabetización en Salud , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia/etnología , Cooperación del Paciente , Prioridad del Paciente/estadística & datos numéricos , Satisfacción del Paciente/etnología , Satisfacción del Paciente/estadística & datos numéricos , Estudios Prospectivos , Encuestas y Cuestionarios , Migrantes/estadística & datos numéricos , Traducciones , Adulto Joven
2.
Bone Marrow Transplant ; 56(9): 2160-2172, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-33911203

RESUMEN

We performed a retrospective assessment of patient- and transplant-specific characteristics and outcomes for 4142 patients undergoing allogeneic haematopoietic cell transplant for myelofibrosis between 1995 and 2018 across 278 centres. Activity increased steadily across the four analysed eras (<2006, 2006-2010, 2011-2014 and 2015-2018). Median recipient age increased over time between the earliest and most recent cohort (49.4 years (range, 20.1-68) versus 59.3 years (range, 18.1-78.1). Increasing number of patients with a Karnofsky performance status <90 underwent transplant over time. Increased utilisation of matched unrelated donors was apparent (<2006, 22.5% versus 2015-18, 45.2%; p < 0.001). Decreased use of myeloablative conditioning, increased use of busulphan-based platforms and anti-thymocyte globulin was evident. Of note, rates of acute (a)GVHD grade II-IV by day +100 decreased over time (p = 0.027) as did rates of chronic (c) GVHD, predominantly extensive cGVHD (<2006, 36% (31-41%) versus 2015-18, 23% (21-25%); p = 0.001). Overall, significant factors associated with worse overall survival and non-relapse mortality (NRM) remained older age, use of donors other than matched sibling, recipient CMV seropositivity and a lower Karnofsky performance status (<90). Multivariable analysis demonstrated improvements in overall survival and reductions in relapse risk over time with stable NRM rates despite increasing numbers of older, less fit patients and use of unrelated donors.


Asunto(s)
Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Mielofibrosis Primaria , Adulto , Anciano , Humanos , Persona de Mediana Edad , Mielofibrosis Primaria/terapia , Estudios Retrospectivos , Acondicionamiento Pretrasplante , Adulto Joven
3.
Leukemia ; 32(2): 383-390, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28761118

RESUMEN

The Dutch-Belgian Cooperative Trial Group for Hematology Oncology Group-65/German-speaking Myeloma Multicenter Group-HD4 (HOVON-65/GMMG-HD4) phase III trial compared bortezomib (BTZ) before and after high-dose melphalan and autologous stem cell transplantation (HDM, PAD arm) compared with classical cytotoxic agents prior and thalidomide after HDM (VAD arm) in multiple myeloma (MM) patients aged 18-65 years. Here, the long-term follow-up and data on second primary malignancies (SPM) are presented. After a median follow-up of 96 months, progression-free survival (censored at allogeneic transplantation, PFS) remained significantly prolonged in the PAD versus VAD arm (hazard ratio (HR)=0.76, 95% confidence interval (95% CI) of 0.65-0.89, P=0.001). Overall survival (OS) was similar in the PAD versus VAD arm (HR=0.89, 95% CI: 0.74-1.08, P=0.24). The incidence of SPM were similar between the two arms (7% each, P=0.73). The negative prognostic effects of the cytogenetic aberration deletion 17p13 (clone size ⩾10%) and renal impairment at baseline (serum creatinine >2 mg dl-1) on PFS and OS remained abrogated in the PAD but not VAD arm. OS from first relapse/progression was similar between the study arms (HR=1.02, P=0.85). In conclusion, the survival benefit with BTZ induction/maintenance compared with classical cytotoxic agents and thalidomide maintenance is maintained without an increased risk of SPM.


Asunto(s)
Bortezomib/administración & dosificación , Mieloma Múltiple/tratamiento farmacológico , Adolescente , Adulto , Anciano , Aberraciones Cromosómicas/efectos de los fármacos , Femenino , Estudios de Seguimiento , Trasplante de Células Madre Hematopoyéticas/métodos , Humanos , Masculino , Melfalán/uso terapéutico , Persona de Mediana Edad , Mieloma Múltiple/mortalidad , Mieloma Múltiple/patología , Pronóstico , Supervivencia sin Progresión , Talidomida/uso terapéutico , Trasplante Autólogo/métodos , Adulto Joven
6.
Leukemia ; 31(4): 889-895, 2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-27774990

RESUMEN

Myeloproliferative neoplasm (MPN)-associated myelofibrosis is a MPN characterized by bone marrow fibrosis, cytopenias, splenomegaly and constitutional symptoms. Pomalidomide, an immune-modifying drug, is reported to improve anaemia and thrombocytopenia in some patients with MPN-associated myelofibrosis. We designed a phase 2 study of pomalidomide in patients with MPN-associated myelofibrosis and anaemia and/or thrombocytopenia and/or neutropenia. Subjects received pomalidomide 2.0 mg/day in cohort 1 (n=38) or 0.5 mg/day in cohort 2 (n=58). Prednisolone was added if there was no response after 3 months in cohort 1 and based on up-front randomization in cohort 2 if there was no response at 3 or 6 months. Response rates were 39% (95% confidence interval (CI), 26-55%) in cohort 1 and 24% (95% CI, 15-37%) in cohort 2. In a multivariable logistic regression model pomalidomide at 2.0 mg/day (odds ratio (OR), 2.62; 95% CI, 1.00-6.87; P=0.05) and mutated TET2 (OR, 5.07; 95% CI, 1.16-22.17; P=0.03) were significantly associated with responses. Median duration of responses was 13.0 months (range 0.9-52.7). There was no significant difference in response rates or duration in subjects receiving or not receiving prednisolone. Clinical trial MPNSG 01-09 is registered at ClinicalTrials.gov (NCT00949364) and clinicaltrialsregister.eu (EudraCT Number: 2009-010738-23).


Asunto(s)
Factores Inmunológicos/uso terapéutico , Trastornos Mieloproliferativos/complicaciones , Mielofibrosis Primaria/tratamiento farmacológico , Mielofibrosis Primaria/etiología , Talidomida/análogos & derivados , Anciano , Anciano de 80 o más Años , Alelos , Biomarcadores , Bandeo Cromosómico , Femenino , Humanos , Factores Inmunológicos/administración & dosificación , Factores Inmunológicos/efectos adversos , Masculino , Persona de Mediana Edad , Mutación , Trastornos Mieloproliferativos/diagnóstico , Trastornos Mieloproliferativos/genética , Fenotipo , Prednisolona/administración & dosificación , Prednisolona/efectos adversos , Prednisolona/uso terapéutico , Mielofibrosis Primaria/diagnóstico , Talidomida/administración & dosificación , Talidomida/efectos adversos , Talidomida/uso terapéutico , Resultado del Tratamiento
7.
Clin Genet ; 90(3): 211-9, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27040985

RESUMEN

Congenital general anosmia (CGA) is a neurological disorder entailing a complete innate inability to sense odors. While the mechanisms underlying vertebrate olfaction have been studied in detail, there are still gaps in our understanding of the molecular genetic basis of innate olfactory disorders. Applying whole-exome sequencing to a family multiply affected with CGA, we identified three members with a rare X-linked missense mutation in the TENM1 (teneurin 1) gene (ENST00000422452:c.C4829T). In Drosophila melanogaster, TENM1 functions in synaptic-partner-matching between axons of olfactory sensory neurons and target projection neurons and is involved in synapse organization in the olfactory system. We used CRISPR-Cas9 system to generate a Tenm1 disrupted mouse model. Tenm1(-/-) and point-mutated Tenm1(A) (/A) adult mice were shown to have an altered ability to locate a buried food pellet. Tenm1(A) (/A) mice also displayed an altered ability to sense aversive odors. Results of our study, that describes a new Tenm1 mouse, agree with the hypothesis that TENM1 has a role in olfaction. However, additional studies should be done in larger CGA cohorts, to provide statistical evidence that loss-of-function mutations in TENM1 can solely cause the disease in our and other CGA cases.


Asunto(s)
Proteínas del Tejido Nervioso/genética , Trastornos del Olfato/congénito , Olfato/genética , Tenascina/genética , Adulto , Animales , Sistemas CRISPR-Cas , Modelos Animales de Enfermedad , Exoma/genética , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Ratones , Ratones Transgénicos , Mutación , Neuronas/metabolismo , Neuronas/patología , Trastornos del Olfato/genética , Trastornos del Olfato/fisiopatología , Linaje
8.
Transpl Infect Dis ; 18(3): 354-60, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26998687

RESUMEN

BACKGROUND: Pulmonary invasive aspergillosis (IA) is a major clinical problem in patients undergoing allogeneic hematopoietic stem cell transplantation (allo-HSCT). Acquisition of IA during allo-HSCT by inhalation of spores is the rationale for the widespread use of air filtration systems. Recent data suggest that activation of fungal growth in already colonized patients is a relevant factor, and a recent study found a positive correlation of serum immunoglobulin responses against purified recombinant Aspergillus fumigatus proteins before allo-HSCT with the incidence of IA after allo-HSCT. METHODS: To investigate the clinical utility of this approach, we performed a prospective study. We used a commercially available and standardized assay for detection of anti-Aspergillus immunoglobulin-G (aA-IgG) in serum (Platelia(™) Aspergillus IgG) that has previously demonstrated high sensitivity and specificity. RESULTS: In a cohort of 104 allo-HSCT recipients, we measured aA-IgG and Aspergillus antigen serum levels before allo-HSCT, and weekly during hospital stay. Overall prevalence of possible, probable, and proven IA during hospital stay was 10%, 6%, and 0%. We found no correlation between aA-IgG levels before allo-HSCT, or after allo-HSCT, and the prevalence of IA during hospital stay. Furthermore, median aA-IgG levels did not differ between patients with history of probable or proven IA, as compared to patients without history of IA. CONCLUSIONS: Taken together, our data argue against the clinical utility of measuring aA-IgG levels for diagnosis or prediction of IA in patients undergoing allo-HSCT.


Asunto(s)
Aspergillus/inmunología , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Inmunoglobulina G/sangre , Aspergilosis Pulmonar Invasiva/diagnóstico , Adulto , Anciano , Antifúngicos/farmacología , Femenino , Humanos , Aspergilosis Pulmonar Invasiva/tratamiento farmacológico , Aspergilosis Pulmonar Invasiva/epidemiología , Aspergilosis Pulmonar Invasiva/microbiología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Juego de Reactivos para Diagnóstico , Adulto Joven
9.
Leukemia ; 29(8): 1721-9, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25787915

RESUMEN

We aimed at demonstrating non-inferiority of bortezomib/cyclophosphamide/dexamethasone (VCD) compared to bortezomib/doxorubicin/dexamethasone (PAd) induction therapy with respect to very good partial response rates or better (⩾VGPR) in 504 newly diagnosed, transplant-eligible multiple myeloma patients. VCD was found to be non-inferior to PAd with respect to ⩾VGPR rates (37.0 versus 34.3%, P=0.001). The rates of progressive disease (PD) were 0.4% (VCD) versus 4.8% (PAd; P=0.003). In the PAd arm, 11 of 12 patients with PD had either renal impairment (creatinine ⩾2 mg/dl) at diagnosis or the cytogenetic abnormality gain 1q21, whereas no PD was observed in these subgroups in the VCD arm. Leukocytopenia/neutropenia (⩾3°) occurred more frequently in the VCD arm (35.2% versus 11.3%, P<0.001). Neuropathy rates (⩾2°) were higher in the PAd group (14.9 versus 8.4%, P=0.03). Serious adverse events, both overall and those related to thromboembolic events, were higher in the PAd group (32.7 versus 24.0%, P=0.04 and 2.8 versus 0.4%, P=0.04). Stem cell collection was not impeded by VCD. VCD is as effective as PAd in terms of achieving ⩾VGPR rates with fewer PD and has a favorable toxicity profile. Therefore, VCD is preferable to PAd as induction therapy.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Mieloma Múltiple/tratamiento farmacológico , Adulto , Anciano , Ácidos Borónicos/administración & dosificación , Bortezomib , Ciclofosfamida/administración & dosificación , Dexametasona/administración & dosificación , Doxorrubicina/administración & dosificación , Femenino , Estudios de Seguimiento , Movilización de Célula Madre Hematopoyética , Humanos , Quimioterapia de Inducción , Masculino , Persona de Mediana Edad , Mieloma Múltiple/mortalidad , Mieloma Múltiple/patología , Estadificación de Neoplasias , Pronóstico , Estudios Prospectivos , Pirazinas/administración & dosificación , Inducción de Remisión , Tasa de Supervivencia
10.
Bone Marrow Transplant ; 47(9): 1171-7, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22158386

RESUMEN

An alternative reduced-toxicity conditioning regimen for allogeneic transplantation, based on treosulfan and fludarabine, has recently been identified. The safety and efficacy of this new conditioning regimen has been investigated prospectively in patients with AML. A total number of 75 patients with AML in CR were treated with 3 × 14 g/m(2) treosulfan and 5 × 30 mg/m(2) fludarabine, followed by matched sibling or unrelated SCT. Patients were evaluated for engraftment, adverse events, GVHD, and for non-relapse mortality, relapse incidence, overall and disease-free survival (DFS). All patients showed primary engraftment of neutrophils after a median of 20 days. Non-hematological adverse events grade III-IV in severity included mainly infections (59%) and gastrointestinal symptoms (7%). Acute GVHD grade II-IV occurred in 21% and extensive chronic GVHD occurred in 16% of the patients. After a median follow-up of 715 days, the 2-year overall and DFS estimates were 61% and 55%, respectively. The 2-year incidences of relapse and non-relapse mortality reached 34% and 11%, respectively. In summary, our data confirm promising safety and efficacy of the treosulfan-based conditioning therapy in AML patients, ClinicalTrials.gov Identifier: NCT01063660.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Trasplante de Células Madre Hematopoyéticas/métodos , Leucemia Mieloide Aguda/tratamiento farmacológico , Leucemia Mieloide Aguda/cirugía , Acondicionamiento Pretrasplante/métodos , Adulto , Busulfano/administración & dosificación , Busulfano/efectos adversos , Busulfano/análogos & derivados , Femenino , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Acondicionamiento Pretrasplante/efectos adversos , Trasplante Homólogo , Vidarabina/administración & dosificación , Vidarabina/efectos adversos , Vidarabina/análogos & derivados , Adulto Joven
11.
Br J Cancer ; 105(4): 505-12, 2011 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-21792201

RESUMEN

BACKGROUND: No comparisons of different doses of docetaxel-capecitabine in patients with advanced gastric cancer have been performed. METHODS: Patients with previously untreated metastatic/locally advanced gastro-oesophageal or gastric adenocarcinoma were enrolled in a prospective multicentre phase II trial. Two sequential cohorts received docetaxel 75 mg m(-2) (day 1) plus capecitabine 1000 mg m(-2) twice daily (days 1-14) (cohort I) or docetaxel 60 mg m(-2) (day 1) plus capecitabine 800 mg m(-2) twice daily (days 1-14) (cohort II) every 3 weeks. The primary end point was confirmed overall response rate. RESULTS: In all, 91 patients were enrolled (cohort I, n=40; cohort II, n=51) and 87 were evaluable for efficacy (n=38, 49, respectively). Overall response rate was 50.0% in cohort I and 23.5% in cohort II (exploratory analysis, P=0.014). Median times to tumour progression and overall survival were 5.6 and 10.1 months in cohort I and 3.7 and 7.2 months in cohort II, respectively. Dose reductions for docetaxel and capecitabine were required in 50.0% and 57.5% of patients in cohort I and 11.8% and 15.7% in cohort II, respectively. CONCLUSION: Starting treatment with full doses and reducing promptly seems to be the more promisingly effective strategy than starting cautiously with lower doses. Docetaxel/capecitabine 75/2000 mg m(-2) is a manageable, convenient outpatient combination with promising efficacy against advanced gastric cancer.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Adenocarcinoma/patología , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/patología , Adulto , Anciano , Capecitabina , Estudios de Cohortes , Desoxicitidina/administración & dosificación , Desoxicitidina/análogos & derivados , Supervivencia sin Enfermedad , Docetaxel , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/análogos & derivados , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Prospectivos , Taxoides/administración & dosificación , Resultado del Tratamiento
12.
Int J Hematol ; 91(5): 877-85, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20490728

RESUMEN

We analyzed cytomegalovirus (CMV) infection risk factors and immune reconstitution kinetics in 89 patients after allogeneic stem cell transplantation (allo-SCT). The use of alemtuzumab for in vivo T cell depletion (TCD) had, besides the donor/recipient CMV serostatus, the strongest influence on the CMV infection risk in univariate and multivariate analyses. In comparison to without use of in vivo TCD, the CMV infection risk [hazard ratio (HR)] was 4.82-fold after TCD with alemtuzumab, but only 1.40-fold after TCD with antithymocyte globulin (ATG). Alemtuzumab strongly depressed CD4(+) and CD8(+) T cell reconstitution, whereas ATG only delayed CD4(+) T cell reconstitution. Considering the reconstitution kinetics of CD4(+) and CD8(+) T cells, CMV-specific CD8(+) T cells, NK cells and the IgG concentration, only a low day +60 NK cell count (< or =161 versus >161/microl) was significantly associated with CMV infection development (HR 2.92, p = 0.034). CMV-specific CD8(+) T cells were detected in 57% of patients with a CMV-seropositive donor, but in none of the patients with a CMV-seronegative donor on day +30 (p = 0.01). Our data indicate that the type of in vivo TCD (alemtuzumab or ATG) differentially influences both the CMV infection risk and CD4(+)/CD8(+) T cell reconstitution kinetics in patients after allo-SCT.


Asunto(s)
Infecciones por Citomegalovirus/etiología , Depleción Linfocítica , Trasplante de Células Madre/efectos adversos , Adolescente , Adulto , Anciano , Alemtuzumab , Anticuerpos Monoclonales/efectos adversos , Anticuerpos Monoclonales/uso terapéutico , Anticuerpos Monoclonales Humanizados , Anticuerpos Antineoplásicos/efectos adversos , Anticuerpos Antineoplásicos/uso terapéutico , Suero Antilinfocítico/efectos adversos , Suero Antilinfocítico/uso terapéutico , Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD8-positivos/inmunología , Femenino , Humanos , Inmunosupresores/efectos adversos , Inmunosupresores/uso terapéutico , Células Asesinas Naturales/inmunología , Masculino , Persona de Mediana Edad , Factores de Riesgo , Trasplante Homólogo , Adulto Joven
13.
Bone Marrow Transplant ; 44(3): 185-92, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19151799

RESUMEN

We developed a novel algorithm to define the need for high-dose prophylactic i.v. Igs (IVIG) in periods of high risk for CMV to patients after allo-SCT. IVIG were administered only if at least one of the following, monthly-assessed, criteria was fulfilled: (1) IgG concentration <4 g/l, (2) NK (natural killer) cell count <100/microl, (3) CD4(+) cell count <100/microl, (4) acute or chronic GVHD. The primary endpoint was to determine the cumulative incidence of CMV infection in patients who received prophylactic IVIG according to the algorithm (intervention group) and compare it with that of a sequentially assessed control group, to which prophylactic IVIG were not administered. The study included 79 patients (44 in the intervention and 35 in the control group). The estimated cumulative incidence of CMV infection in the intervention and control group did not differ significantly (44 and 36%; P=0.31). Additionally, prophylactic IVIG did not reduce the frequency of CMV infection episodes. CMV disease was rare in both cohorts (5 and 9%; P=0.65). We conclude that prophylactic IVIG should not be administered after allo-SCT, even if administered selectively in a high dose to patients with delayed immune reconstitution or GVHD.


Asunto(s)
Infecciones por Citomegalovirus/prevención & control , Trasplante de Células Madre Hematopoyéticas/métodos , Inmunoglobulinas Intravenosas/administración & dosificación , Adolescente , Adulto , Anciano , Algoritmos , Infecciones por Citomegalovirus/inmunología , Femenino , Enfermedad Injerto contra Huésped/inmunología , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Acondicionamiento Pretrasplante/efectos adversos , Acondicionamiento Pretrasplante/métodos , Adulto Joven
14.
Int J Lab Hematol ; 31(2): 236-40, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18190590

RESUMEN

Several intracytoplasmic morphological changes in the plasma cells of multiple myeloma have been described previously. However, Auer rod-like inclusions are rarely found in these types of cells. Here, we report a case of multiple myeloma with Auer rod-like, needle-shaped intracytoplasmic inclusions in plasma cells. A review of all published cases revealed that this phenomenon is exclusively found in myeloma with kappa-type paraprotein. The nature of these intracellular inclusions and the relationship to prognostic implications and concomitant illnesses are discussed.


Asunto(s)
Células de la Médula Ósea/patología , Neoplasias Hematológicas/patología , Cuerpos de Inclusión/patología , Mieloma Múltiple/patología , Células Plasmáticas/patología , Anciano , Antineoplásicos Alquilantes/uso terapéutico , Glucocorticoides/uso terapéutico , Neoplasias Hematológicas/tratamiento farmacológico , Humanos , Masculino , Melfalán/uso terapéutico , Mieloma Múltiple/tratamiento farmacológico , Prednisolona/uso terapéutico , Pronóstico
15.
J Cancer Res Clin Oncol ; 135(2): 227-34, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-18719942

RESUMEN

PURPOSE: We investigated the in vitro toxicity of bendamustine and fludarabine to hematopoietic progenitors and stem cells from healthy donors. METHODS: Clonogenic agar colony assays, non-clonogenic long-term liquid cultures (LTC) and apoptosis assays were used to assess the cytotoxicity of both the agents. RESULTS: Total colony-forming units (CFU) were more sensitive to fludarabine than to bendamustine in agar colony assays (IC(50) 0.7 microM/L and 8.5 microM/L, respectively). Using the Bliss independence model and combining the two agents yielded additive inhibition of progenitors. Non-clonogenic assays, including LTC and an apoptosis assay detecting activated caspases showed that stem cells are characterized by low sensitivity to bendamustine. In contrast, fludarabine strongly inhibited the viability and growth of stem cells in LTC. CONCLUSIONS: Our data show that bendamustine is characterized by lower in vitro toxicity to hematopoietic progenitors and stem cells than fludarabine and might thus be preferable in regimens prior to stem cells apheresis.


Asunto(s)
Antineoplásicos/toxicidad , Células Madre Hematopoyéticas/citología , Compuestos de Mostaza Nitrogenada/toxicidad , Células Madre/citología , Vidarabina/análogos & derivados , Clorhidrato de Bendamustina , Eliminación de Componentes Sanguíneos/métodos , Células de la Médula Ósea/citología , Técnicas de Cultivo de Célula/métodos , Supervivencia Celular/efectos de los fármacos , Ensayo de Unidades Formadoras de Colonias , Factor Estimulante de Colonias de Granulocitos/farmacología , Células Madre Hematopoyéticas/efectos de los fármacos , Células Madre Hematopoyéticas/patología , Humanos , Modelos Biológicos , Valores de Referencia , Células Madre/efectos de los fármacos , Células Madre/patología , Vidarabina/toxicidad
16.
Ann Oncol ; 19(5): 984-9, 2008 May.
Artículo en Inglés | MEDLINE | ID: mdl-18227109

RESUMEN

We carried out a prospective study on galactomannan enzyme immuno assay (GEI) (Platelia Aspergillus EIA, Bio-Rad) testing for diagnosis of invasive aspergillosis (IA) in serum and broncho-alveolar lavage (BAL) in 200 patients with hematological malignancies and profound neutropenia. The incidence of proven and probable IA was 6% and 5.5%, respectively. In patients with fever or pneumonia, a single-positive GEI test result (galactomannan index >or= 0.5) had excellent specificity (100%). Sensitivity was relatively low (40%) at onset of fever, but increased to 94.7% after 6 days of fever. In patients with infiltrates in chest X-ray or computed tomography scan (n = 48), GEI testing in BAL had a favorable diagnostic accuracy as compared with GEI testing in serum (sensitivity 100% versus 71%). Our findings indicate that antifungal therapy should be started immediately at onset of fever in neutropenic patients with positive GEI tests. In patients with fever refractory to broad-spectrum antibiotics (>or=6 days of fever), the high diagnostic accuracy makes GEI testing a valuable diagnostic tool and questions the common strategy to carry out antifungal treatment irrespective of diagnostic testing in this situation. Our data also show that GEI testing in BAL can be useful for early diagnosis of IA in patients with hematological malignancies and pulmonary infiltrates.


Asunto(s)
Aspergilosis/diagnóstico , Líquido del Lavado Bronquioalveolar/química , Neoplasias Hematológicas/metabolismo , Técnicas para Inmunoenzimas , Enfermedades Pulmonares Fúngicas/diagnóstico , Mananos/análisis , Neutropenia/complicaciones , Adulto , Anciano , Antibacterianos/uso terapéutico , Antineoplásicos/efectos adversos , Aspergilosis/sangre , Aspergilosis/diagnóstico por imagen , Aspergilosis/epidemiología , Aspergilosis/metabolismo , Biomarcadores , Diagnóstico Precoz , Femenino , Fiebre/etiología , Galactosa/análogos & derivados , Neoplasias Hematológicas/sangre , Neoplasias Hematológicas/complicaciones , Neoplasias Hematológicas/tratamiento farmacológico , Humanos , Incidencia , Enfermedades Pulmonares Fúngicas/sangre , Enfermedades Pulmonares Fúngicas/diagnóstico por imagen , Enfermedades Pulmonares Fúngicas/epidemiología , Enfermedades Pulmonares Fúngicas/metabolismo , Masculino , Mananos/sangre , Persona de Mediana Edad , Neutropenia/inducido químicamente , Radiografía , Sensibilidad y Especificidad
17.
Ann Oncol ; 18(11): 1870-4, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17804478

RESUMEN

Bloodstream infections (BSIs) are frequent infectious complications in neutropenic patients. In order to determine the efficacy of surveillance blood cultures (BCs) to detect BSIs prior to clinical manifestation we performed a prospective trial. One hundred patients with haematological malignancies and long-term neutropenia following intensive cytotoxic therapies were recruited. BCs were taken thrice weekly during neutropenia. Forty-two patients were diagnosed with BSI. In 18 (43%) of those patients surveillance BC results were positive and identified microorganisms prior to onset of fever. In patients with positive surveillance BCs modification of the clinical management (specific antimicrobial therapy, CVC removal) resulted in a shorter time to defervescence (median 1.5 days) compared with patients with BCs positive after onset of fever (median 3.5 days, P = 0.004). In conclusion we detected causative microorganisms in more than one-third of BSIs prior to onset of clinical manifestation. The impact of surveillance BCs on the outcome has to be assessed in randomized studies.


Asunto(s)
Antiinfecciosos/administración & dosificación , Patógenos Transmitidos por la Sangre/aislamiento & purificación , Sangre/microbiología , Neoplasias Hematológicas/complicaciones , Neutropenia/complicaciones , Sepsis/diagnóstico , Sepsis/tratamiento farmacológico , Adulto , Anciano , Infección Hospitalaria/diagnóstico , Infección Hospitalaria/tratamiento farmacológico , Diagnóstico Precoz , Femenino , Estudios de Seguimiento , Neoplasias Hematológicas/patología , Humanos , Masculino , Persona de Mediana Edad , Monitoreo Fisiológico/métodos , Neutropenia/diagnóstico , Valor Predictivo de las Pruebas , Probabilidad , Estudios Prospectivos , Medición de Riesgo , Sepsis/microbiología , Estadísticas no Paramétricas , Tasa de Supervivencia , Resultado del Tratamiento
18.
Int J Hematol ; 86(2): 158-62, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17875531

RESUMEN

Increasing colonization and infection with vancomycin-resistant enterococci (VRE) in immunocompromised patients are associated with increased mortality. Despite contact precautions for VRE control, rapid limitation of its spread is often impossible. We report on a VRE outbreak in a hematologic/oncologic unit including 33 patients. Although 28 of the patients had only VRE colonization, VRE-related infection was probable in 4 patients, and VRE infection of the bloodstream occurred in 1 case. Two patients were identified by VRE screening on admission, 20 were identified by weekly routine VRE screening, and 6 were identified from specimens taken to clarify infections (eg, urine, bronchoalveolar lavage). Five individuals acquired VRE colonization as inpatients (contact patients). Multiple-locus variable-number tandem repeat analysis (MLVA) proved that the outbreak was caused by VanA gene-positive Enterococcus faecium belonging to MLVA genogroup C1(MLVA types 1, 7, 12). The outbreak strains exhibited the potential virulence factor esp(enterococcus surface protein). The outbreak was terminated within 2 months by intensified infection-control measures, including quarantine and the cohorting of patients who tested positive for VRE; however, VRE spread recurred after the measures were discontinued but was again limited by resuming the measures. We conclude that intensive infection-control strategies enable the timely termination of VRE outbreaks, even those involving VRE strains with high epidemic potential on "high-risk wards" (eg, hematologic/oncologic units). Premature discontinuation of infection-control measures may cause recurrence of the VRE spread.


Asunto(s)
Brotes de Enfermedades , Enterococcus/patogenicidad , Huésped Inmunocomprometido , Control de Infecciones/métodos , Infecciones/diagnóstico , Resistencia a la Vancomicina , Proteínas Bacterianas/genética , Ligasas de Carbono-Oxígeno/genética , Enterococcus/aislamiento & purificación , Femenino , Genes Bacterianos , Genotipo , Unidades Hospitalarias , Humanos , Infecciones/etiología , Linfoma no Hodgkin/complicaciones , Masculino , Neoplasias/complicaciones
19.
Ann Hematol ; 86(8): 583-9, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17468869

RESUMEN

Reduced-intensity conditioning with fludarabine and treosulfan before allogeneic stem cell transplantation (SCT) was introduced several years ago. Although its feasibility has recently been proven, only limited data are available on myelotoxicity, engraftment kinetics, and the significance of hematopoietic chimerism using this novel conditioning regimen. To clarify these open questions, we analyzed 27 patients with various hematological diseases, who received allogeneic SCT preceded by fludarabine/treosulfan conditioning. Further assessment endpoints included graft-vs-host disease (GvHD), mortality, and overall survival (OS). Allogeneic SCT was followed by neutropenia (absolute neutrophil count < or = 0.5 x 10(9)/l) and thrombocytopenia (platelets < or = 20 x 10(9)/l) in all patients. All patients showed stable neutrophil engraftment, and all except one had stable platelet engraftment. Grades II-IV acute GvHD was found in 48% of patients, whereas 52% developed chronic GvHD. The treatment-related mortality on day +100, 1 year after SCT, and at the last follow-up was 11, 26, and 33%, respectively. We found complete chimerism rates of 46, 57, and 72% on days +28, +56, and at the last follow-up or before death, respectively. The underlying malignancy tended to relapse more frequently in patients with mixed chimerism than in those with complete chimerism on day +28 as well as on day +56 (not significant). Additionally, no significant association was found between hematopoietic chimerism and donor type, GvHD, or OS, respectively. We conclude that reduced-intensity conditioning with fludarabine and treosulfan before allogeneic SCT is myeloablative, provides stable engraftment, and leads to complete chimerism in the majority of patients.


Asunto(s)
Busulfano/análogos & derivados , Enfermedades Hematológicas , Trasplante de Células Madre Hematopoyéticas , Acondicionamiento Pretrasplante , Vidarabina/análogos & derivados , Adolescente , Adulto , Anciano , Busulfano/administración & dosificación , Busulfano/efectos adversos , Quimerismo/efectos de los fármacos , Femenino , Supervivencia de Injerto/efectos de los fármacos , Enfermedad Injerto contra Huésped/prevención & control , Enfermedades Hematológicas/inmunología , Enfermedades Hematológicas/mortalidad , Enfermedades Hematológicas/fisiopatología , Enfermedades Hematológicas/terapia , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Recurrencia , Análisis de Supervivencia , Trasplante Homólogo , Vidarabina/administración & dosificación , Vidarabina/efectos adversos
20.
Leukemia ; 21(6): 1294-9, 2007 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-17377586

RESUMEN

In a phase III randomized, multicenter study, the German-speaking Myeloma-Multicenter Group (GMMG) and the Dutch-Belgian Hemato-Oncology Cooperative Group (HOVON) group investigated the influence of thalidomide (Thal) on the outcome of peripheral blood stem cell (PBSC) collection in multiple myeloma (MM) before peripheral autologous blood stem cell transplantation (ABSCT). We analyzed the data of 398 myeloma patients after induction with Thal, doxorubicin and dexamethasone (TAD) in comparison with vincristine, doxorubicin and dexamethasone (VAD) followed by mobilization with cyclophosphamide, doxorubicin, dexamethasone (CAD) and PBSC collection. Within both the study groups, patients treated with TAD showed to collect significantly fewer CD34(+) cells compared with VAD (GMMG, TAD: median 9.8 x 10(6)/kg; range 2.0-33.6; VAD: median 10.9 x 10(6)/kg range 3.0-36.0; P=0.02) (HOVON, TAD: median 7.4 x 10(6)/kg; range 2.0-33.0; VAD: median 9.4 x 10(6)/kg; range 0.0-48.7; P=0.009). However, engraftment after peripheral autologous stem cell transplantation showed no difference between Thal and VAD groups. We conclude that Thal as a part of induction regimen is associated with better response rates (GMMG-HD3: CR/PR 79%, VAD: CR/PR 58%; HOVON-50: TAD: CR/PR 81%, VAD: CR/PR 61%), but significantly affects the yield of PBSC collection. Nevertheless, the number of total CD34(+) cells collected was sufficient for double autologous transplantation in 82% of the Thal patients, with at least 2.5 x 10(6)/kg CD34(+) cells.


Asunto(s)
Mieloma Múltiple/terapia , Trasplante de Células Madre de Sangre Periférica/métodos , Talidomida/efectos adversos , Recolección de Tejidos y Órganos/normas , Adulto , Anciano , Antígenos CD34/análisis , Protocolos de Quimioterapia Combinada Antineoplásica/farmacología , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Femenino , Movilización de Célula Madre Hematopoyética/métodos , Humanos , Masculino , Persona de Mediana Edad , Trasplante de Células Madre de Sangre Periférica/normas , Inducción de Remisión/métodos , Trasplante Autólogo
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