Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
1.
Biol Blood Marrow Transplant ; 21(6): 1059-67, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25708220

RESUMO

This retrospective report compared the 4-year outcomes of allogeneic stem cell transplantation (allo-SCT) in 651 adult patients with acute myeloid leukemia receiving a reduced-intensity (RIC) or nonmyeloablative conditioning (NMA) regimen according to the type of unrelated donors. These were either umbilical cord blood (UCB, n = 205), a 9/10 mismatched unrelated donor (MisMUD, n = 99), or a 10/10 matched unrelated donor (MUD, n = 347) graft. Neutrophil recovery was slower in UCB (74.5% by day 42) compared with MisMUD (94.8%) and MUD (95.6%) (P < .001). There was no significant difference in nonrelapse mortality between UCB and both MUD (hazard ratio [HR], 1.05; 95% confidence interval [CI], .62 to 1.78; P = .85) and MisMUD (HR, 1.58; 95% CI, .88 to 2.83; P = .13) The relapse/progression was similar between UCB and MisMUD (HR, .62; 95% CI, .37 to 1.03; P = .07), but was significantly lower in MUD compared with UCB (HR, .60; 95% CI, .39 to .92; P = .02). The rate of extensive chronic graft-versus-host disease (GVHD) was similar between UCB and both MUD (HR, 2.15; 95% CI, .93 to 4.97; P = .08) and MisMUD (HR, 1.84; 95% CI, .68 to 4.95; P = .23). The rate of severe grade III and IV acute GVHD was significantly increased in MisMUD compared with UCB (HR, 2.61; 95% CI, 1.30 to 5.23; P = .007). There was no significant difference in overall survival between UCB and both MisMUD (HR, .98; 95% CI, .66 to 1.45; P = .92) and MUD (HR, .74; 95% CI, .52 to 1.03; P = .08). These data suggest that in the setting of RIC/NMA, allo-SCT UCB is a valid alternative graft source, with significantly less chronic GVHD, compared with MisMUD, when there is no MUD available or when urgent transplantation is needed.


Assuntos
Transplante de Células-Tronco de Sangue do Cordão Umbilical , Transplante de Células-Tronco Hematopoéticas , Leucemia Mieloide Aguda/terapia , Agonistas Mieloablativos/uso terapêutico , Condicionamento Pré-Transplante/métodos , Adulto , Idoso , Doença Crônica , Feminino , França , Sobrevivência de Enxerto , Doença Enxerto-Hospedeiro/genética , Doença Enxerto-Hospedeiro/imunologia , Doença Enxerto-Hospedeiro/patologia , Teste de Histocompatibilidade , Humanos , Leucemia Mieloide Aguda/imunologia , Leucemia Mieloide Aguda/mortalidade , Leucemia Mieloide Aguda/patologia , Masculino , Pessoa de Meia-Idade , Recidiva , Estudos Retrospectivos , Irmãos , Sociedades Médicas , Análise de Sobrevida , Transplante Homólogo , Doadores não Relacionados
2.
J Antimicrob Chemother ; 66(2): 371-4, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21131690

RESUMO

OBJECTIVES: An increase in invasive aspergillosis (IA) due to azole-resistant Aspergillus fumigatus isolates has been reported for 10 years. Our study aimed to estimate the prevalence of azole resistance in isolates prospectively collected in patients with haematological diseases. METHODS: One hundred and eighteen isolates were collected from 89 consecutive patients over 4 years. Fifty-one patients had proven or probable IA. Species identification was ascertained based on ß-tubulin gene sequencing. The MICs of azole drugs were determined using Etest(®), and the cyp51A gene and its promoter were sequenced to detect mutations. RESULTS: All isolates were identified as A. fumigatus and all of them but one had itraconazole and voriconazole MICs of ≤ 2 mg/L and posaconazole MICs of ≤ 0.25 mg/L. An isolate for which the itraconazole MIC was high (itraconazole MIC = 16 mg/L; voriconazole MIC = 0.38 mg/L; and posaconazole MIC = 0.25 mg/L) was recovered from a patient naive to azole treatment and had a new G432S substitution. To establish whether this mutation existed in other isolates, the 1426-2025 bp cyp51A locus was sequenced for all. G432S was not found. CONCLUSIONS: In A. fumigatus, the prevalence of azole resistance is currently low in the haematological population in the Paris area. Surveillance programmes for azole resistance to adapt antifungal treatments are warranted for clinical isolates of A. fumigatus.


Assuntos
Antifúngicos/uso terapêutico , Aspergilose/tratamento farmacológico , Aspergillus fumigatus/efeitos dos fármacos , Azóis/farmacologia , Farmacorresistência Fúngica , Neoplasias Hematológicas/tratamento farmacológico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Aspergilose/complicações , Aspergillus fumigatus/genética , Aspergillus fumigatus/isolamento & purificação , Azóis/uso terapêutico , Estudos de Coortes , Sistema Enzimático do Citocromo P-450/genética , Farmacorresistência Fúngica/genética , Feminino , França , Proteínas Fúngicas/genética , Neoplasias Hematológicas/complicações , Humanos , Itraconazol/uso terapêutico , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Mutação , Pirimidinas/uso terapêutico , Triazóis/uso terapêutico , Tubulina (Proteína)/genética , Voriconazol
3.
Haematologica ; 95(6): 892-9, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20015890

RESUMO

BACKGROUND: There is little published information on the everyday clinical management of myelodysplastic syndromes in real world practice. DESIGN AND METHODS: We conducted a cross-sectional study of all patients with myelodysplastic syndromes attending 74 French centers in a 1-week period for inpatient admission, day-hospital care or outpatient visits. RESULTS: Nine hundred and seven patients were included; 67.3% had lower-risk myelodysplastic syndromes (International Prognostic Scoring System: low or intermediate-1). Karyotype had been analyzed in 82.5% of the cases and was more often of intermediate or poor risk in patients under 65 years old compared with those who were older. Red blood cell transfusions accounted for as many as 31.4% of the admissions. Endogenous erythropoietin level was less than 500 IU/L in 88% of the patients tested. Erythroid stimulating agents had been or were being used in 36.8% of the lower risk patients, iron chelation in 31% of lower risk patients requiring red blood cell transfusions and lenalidomide in 41% of lower risk patients with del 5q. High-dose chemotherapy, hypomethylating agents, low dose cytarabine and allogeneic stem cell transplantation had been or were being used in 14.8%, 31.1%, 8.8% and 5.1%, respectively, of higher-risk patients. CONCLUSIONS: Karyotype is now assessed in most patients with myelodysplastic syndromes, and patients under 65 years old may have more aggressive disease. Apart from erythroid-stimulating agents and, in higher-risk myelodysplastic syndromes, hypomethylating agents, specific treatments are used in a minority of patients with myelodysplastic syndromes and red blood cell transfusions still represent the major reason for hospital admission.


Assuntos
Síndromes Mielodisplásicas/epidemiologia , Síndromes Mielodisplásicas/terapia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/uso terapêutico , Estudos de Coortes , Estudos Transversais , Gerenciamento Clínico , Transfusão de Eritrócitos/tendências , Eritropoetina/uso terapêutico , Feminino , França/epidemiologia , Transplante de Células-Tronco Hematopoéticas/tendências , Humanos , Cariotipagem , Masculino , Pessoa de Meia-Idade , Síndromes Mielodisplásicas/genética , Fatores de Tempo , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA