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1.
Journal of Experimental Hematology ; (6): 192-197, 2017.
Article Dans Chinois | WPRIM | ID: wpr-311569

Résumé

<p><b>OBJECTIVE</b>To evaluate safety and efficacy of autologous peripheral blood hematopoietic stem cell transplantation (auto-PBHSCT) with IBu precondition regimen consisting of high-dose idarubicin (IDA) and busulphan (Bu) for treatment of patients with low and intermediate risk acute myeloid leuekmia (AML).</p><p><b>METHODS</b>A total of 11 patients with AML (5 low and 6 intermediate risk patients) treated with auto-PBHSCT with IBu precondition regimen (IDA 20 mg/m, continuous i.v. from d-13 to d-11, Bu 0.8 mg/kg/q6h i.v. for 2h, from d-5 to d-2) from March 2011 to July 2014 were analyzed retrospectively. Adverse effects and transplantation-related mortality (TRM) were evaluated. Kaplan-Meier analysis was performed to calculate the overall survival (OS), disease-free survival (DFS) and cumulative relapse rate (RR). Cox regression was performed for univariate analysis for DFS.</p><p><b>RESULTS</b>Among the 11 patients, 10 patients obtained hematopoietic reconstitution, 1 patient died during transplantation, thus the TRM was 9.1%. The adverse effects were well tolerated. With median follow-up of 31.6 (8.7-52.5) months, 7 patients (63.3%) were alive, including 6 patients (54.5%) in continuous complete remission (CR). Median OS and DFS were not reached. The 3-year OS, DFS and RR were (57.7±16.3)%, (52.5±17.6)% and 47.5%, respectively. Univartiate analysis indicated that the age, sex, interval between diagnosis and transplantation, white blood cell count at diagnosis, risk-grouping (low or intermediate risk), disease status before transplantation (CR1 or CR2), and count of mononuclear cells for infusion all can not influence DFS(P>0.05, respectively).</p><p><b>CONCLUSION</b>The treatment of auto-PBHSCT with IBu precondition regimen for low to intermediate risk AML patients is safe and effective.</p>

2.
Chinese Journal of Contemporary Pediatrics ; (12): 518-520, 2012.
Article Dans Chinois | WPRIM | ID: wpr-320605

Résumé

<p><b>OBJECTIVE</b>To study the prevalence and drug resistance of extended-spectrum-β-lactamases (ESBLs)-producing bacteria in blood culture isolated from children with hematological malignancy after chemotherapy.</p><p><b>METHODS</b>Blood samples taken from 3264 children with hematological malignancy and severe infection following chemotherapy between 2002 and 2008 were cultured using the Bact/ALTER 3D blood culture system. VITEK 60 automicroscan was used to identify viral species and to conduct drug resistance tests. The results were indentified according to National Committee for Clinical Laboratory Standard guidelines.</p><p><b>RESULTS</b>Fifty-eight strains of Escherichia coli and fifty-one strains of Klebsiella pneumoniae were isolated. Thirty-eight strains of Escherichia coli and nineteen strains of Klebsiella pneumoniae were ESBLs-producing and these ESBLs-producing strains were less susceptible than those that were non-ESBLs-producing to most antibiotics. Both ESBL- and non-ESBL-producing strains were susceptible to imipenem, piperacillin/tazobactam and amikacin.</p><p><b>CONCLUSIONS</b>The prevalence of ESBLs-producing bacteria is high in childrn with hematological malignancy and infection following chemotherapy. ESBLs-producing bacteria are resistant to common antibiotics, suggesting that antibiotic treatment based on the result of antimicrobial susceptibility test is necessary in these children.</p>


Sujets)
Adolescent , Enfant , Enfant d'âge préscolaire , Femelle , Humains , Mâle , Bactériémie , Microbiologie , Résistance bactérienne aux médicaments , Escherichia coli , Tumeurs hématologiques , Traitement médicamenteux , Microbiologie , Klebsiella pneumoniae , Tests de sensibilité microbienne , bêta-Lactamases
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