The cure rate for children with acute lymphoblastic leukemia in big treatment centers in Western countries is now about 80%. This accomplishment is owe to patients successful treatment based on combination of multiagent chemotherapy, risk-based intensification of therapy and central nerve system prophylaxis. Stratification of patients is according to prognostic factors that predict risk of relapse. It is necessary to consider the interrelationship of prognostic factors. In host-related factors, which are generally known as age, gender, race, and pharmacogenetics. Disease-related factors include white blood cell count, immunopheno typing, cytogenetic or molecular genetics features, etc. Treatment-related factors are what can be modified. Early response to treatment is often the strongest prognostic factor. Large, controlled and usually randomized clinical trials greatly improve the prognosis of childhood acute lymphoblastic leukemia.
Child ; Female ; Humans ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; ethnology ; mortality ; Prognosis ; Sex Factors

The objective of this study was to explore the clinical features of acute leukemia patients aged over 80 years. 12 cases of acute leukemia patients aged over 80 years who were diagnosed from 2000 to 2010 years were analyzed retrospectively. 9 cases suffered from acute myelogenous leukemia and 3 cases were with acute lymphoblastic leukemia. All patients were with several complicated diseases and the general status was poor in most patients. 10 cases received individualized treatments. The results showed that 2 patients achieved complete remission, but in other patients was not observed remission and the mean survival time was 20 ± 16 weeks. In AML patients, the mean survival time was 27 ± 14 weeks which was obviously longer than that in other reports. The survival time in 3 ALL patients was shortest. In conclusion, survival time was prolonged obviously in AML patients well advanced of age after individualized treatments, but prognosis of ALL in aged patients was very poor, for whom there is no relatively effective treatment.
Acute Disease ; Aged, 80 and over ; Humans ; Leukemia ; mortality ; therapy ; Leukemia, Myeloid, Acute ; mortality ; therapy ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; mortality ; therapy ; Prognosis ; Retrospective Studies ; Treatment Outcome

The mortality rate of the invasive pulmonary aspergillosis to be able to developed during chemotherapy induced myleosuppressionin is high in hematologic malignancy patients despite antifungal treatment. Effective antifungal treatment combined with operation can decrease the mortaligy rate of the invasive pulmonary aspergillosis. Recently, we experienced the successful management of the two cases of invasive pulmonary aspergillosis in acute lymphoblastic leukemia through effective antifungal treatment and surgical resection. We report this cases with review of literature.
Drug Therapy ; Hematologic Neoplasms ; Hematology ; Humans ; Invasive Pulmonary Aspergillosis* ; Mortality ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; Pulmonary Aspergillosis

Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; mortality ; therapy ; Treatment Outcome

OBJECTIVETo study the role of minimal residual disease (MRD) in the evaluation of therapeutic effectiveness of childhood B-cell acute lymphoblastic leukemia (ALL).

METHODSMRD testing was performed in 124 children with B-cell ALL, who were newly diagnosed and enrolled in the ALL-XH-99 treatment protocol from September 2001 to April 2005MRD was determined by 4-color flow cytometry in the different time points during the treatment period.

RESULTSAfter induction therapy, 103, 13 and 8 patients showed MRD <0.01%, 0.01%-0.1% and >0.1%, respectively. The 5-year relapse-free survival (RFS) in the patients with MRD <0.01%, 0.01%-0.1% and >0.1% was 88.9+/-3.9%, 70.0+/-14.5% and 0%, respectively and the 5-year event-free survival (EFS) was 82.4+/-4.4%, 21.2+/-18.0% and 0%, respectively. There were significant differences in the RFS and EFS among the patients with different MRD levels (P<0.01). Within half a year after induction remission, the 5-year RFS in patients with MRD negative (<0.01%) and positive was 87.7+/-4.1% and 58.3+/-14.2%, respectively (P<0.01) and the 5-year RFS was 80.7+/-4.6% and 25.6+/-13.8%, respectively (P<0.01). After half a year with induction remission, the patients with MRD negative and positive also showed statistical differences in the 5-year RFS (92.0+/-3.6% vs 48.5+/-15.5%; P<0.01) and EFS (85.6+/-4.5% vs 21.4+/-11.0%; P<0.01). Multivariate analysis confirmed that the MRD level after induction chemotherapy together with the reaction to prednisone, the bone marrow features on the 19th day of induction, and the fusion gene with BCR-ABL or MLL-AF4 had prognostic significance in childhood B-cell ALL.

CONCLUSIONSThe MRD level in the whole course of therapy is an important outcome indicator in childhood B cell ALL.

Adolescent ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Burkitt Lymphoma ; drug therapy ; mortality ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Neoplasm, Residual ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; mortality

OBJECTIVETo study the prognostic factors for events-free survival (EFS) in children with acute non-mature B-lymphoblastic leukemia.

METHODSOne hundred and sixty-one children with newly diagnosed acute non-mature B-lymphoblastic leukemia received the ALL-XH-99 protocol treatment. Their medical data, including clinical, biological and molecule features, early responses to treatment (bone marrow evaluation on the 19th day of induction therapy), minimal residual disease (MRD) in bone marrow after remission induction therapy, the risk grade of disease before the beginning of chemotherapy and the outcome, were retrospectively studied.

RESULTSUnivariable analysis indicated that the gender and P170 levels before therapy had no effect on the outcome. Age, initial white blood cell count (WBC), prednisone response, early response to treatment, fusion genes (BCR/ABL or MLL/AF4) and MRD level were significantly related to the EFS (P<0.01). Immunophenotype, myeloid-associated antigen and the risk grade of disease were also related to the EFS (P<0.05). Multivariable analysis showed that WBC >or=50 x 10(9)/L, Cmu positive, BCR/ABL or MLL/AF4 positive and MRD positive (>or=0.01%) were risk factors for the poor prognosis (P<0.01). The early response to treatment was important to modify the therapy protocol.

CONCLUSIONSWBC >or=50 x 10(9)/L, Cmu positive, BCR/ABL or MLL/AF4 positive and MRD positive have important prognostic values in childhood acute non-mature B-lymphoblastic leukemia. Early response to treatment is an important index for modifying the chemotherapy protocol.

Adolescent ; Burkitt Lymphoma ; drug therapy ; mortality ; Child ; Child, Preschool ; Female ; Genes, abl ; Humans ; Infant ; Male ; Myeloid-Lymphoid Leukemia Protein ; genetics ; Neoplasm, Residual ; Oncogene Proteins, Fusion ; genetics ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; mortality ; Prognosis ; Regression Analysis

The objective was to study the incidence and prognosis significance of -7/7q- abnormalities in acute leukemia and myelodysplastic syndrome. Conventional cytogenetic analysis of R-band was used to test -7/7q- chromosome abnormalities in 410 patients with acute leukemia (AL), in 71 cases of myelodysplastic syndrome (MDS) and in 36 cases of chronic myelogenous leukemia in accelerated phase (CML-AP). The results showed that the incidences of -7/7q- abnormalities in AL, MDS and CML-AP patients were 4.88%, 9.86% and 8.33% respectively. The -7/7q- abnormalities could be found in acute myeloblastic leukemia (AML) and acute lymphocytic leukemia (ALL), incidences of which were 4.70% and 6.25% (P > 0.05) respectively. 9 cases had -7 or 7q- as the sole chromosome abnormalities, 22 cases showed other additional chromosome abnormalities: -X, -5, +8, t(3; 3), t(11;16) and t(2;11). Monosomy -7 and 7q- abnormality clone was found in one patient with MDS-RAEB, and the number of cells with -7 abnormality was greater than that of 7q- abnormality cells. Four patients acquired CR among 7 patients with ALL after chemotherapy, but 2 out of 13 patients with AML achieved CR while 6 out of 7 patients with MDS transformed into AL. No patients with CML-AP achieved CR. In conclusion, -7/7q- is a frequent aberration in hematologic malignancies as well as AML and ALL. The monosomy -7 and 7q-abnormalities were detected in the same patient. The patients with -7/7q- abnormalities show poor prognosis.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Chromosome Aberrations ; Chromosomes, Human, Pair 7 ; Female ; Humans ; Leukemia, Myeloid, Acute ; drug therapy ; genetics ; mortality ; Male ; Middle Aged ; Myelodysplastic Syndromes ; drug therapy ; genetics ; mortality ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; genetics ; mortality

OBJECTIVETo study the long-term efficacy of CAMSBDH-ALL chemotherapy protocol for the treatment of childhood acute lymphoblastic leukemia (ALL).

METHODSThree hundred and eighteen children who were newly diagnosed with ALL between January 1999 and December 2007 were enrolled in this study. Among the 318 children, 83 children who hospitalized before December 2002 were treated with CAMSBDH-ALL99 protocol, including 48 patients of standard risk and 35 patients of high risk. The patients (n=235; 131 in standard risk and 104 in high risk) who hospitalized after December 2002 were treated with CAMSBDH-ALL03 protocol. Patients in the CAMSBDH-ALL99 protocol group were treated with conventional chemotherapy. CAMSBDH-ALL03 protocol was modified based on the CAMSBDH-ALL99 protocol.

RESULTSThe long-term overall survival (OS) and event-free-survival (EFS) in the CAMSBDH-ALL03 group was significantly higher than in the CAMSBDH-ALL99 (P<0.01). The long-term OS and EFS of standard risk and high risk patients in the CAMSBDH-ALL03 protocol group were significantly higher than in the CAMSBDH-ALL99 protocol group (P<0.01). The CAMSBDH-ALL03 protocol group showed a significantly lower recurrence rate (28.9%) than in the CAMSBDH-ALL99 protocol group (50.6%) (P<0.05). The mortality rate in the CAMSBDH-ALL03 protocol group was 28.5% vs 56.6% in the CAMSBDH-ALL99 protocol group (P<0.05).

CONCLUSIONSThe therapeutic effect of the CAMSBDH-ALL03 protocol is supior to the CAMSBDH-ALL99 protocol group for childhood ALL, with a higher long-term survival rate.

Adolescent ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Child ; Child, Preschool ; Clinical Protocols ; Female ; Humans ; Infant ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; mortality ; Recurrence

OBJECTIVETo analyse the treatment outcome of 158 childhood acute lymphoblastic leukemia (ALL) patients, and explore how to improve the event-free survival (EFS) rate in ALL.

METHODAll of the patients entered the ALL-XH-99 clinical trial. Kaplan-Meier method was used to estimate survival rates and differences were compared with the 2-sided log-rank test, statistics was done by SPSS.

RESULTSOut of the 158 patients, 153 (96.8%) attained complete remission (CR) in a median time of 33 days. The overall EFS rate at 5 years was (72.4 +/- 7.8)% with a median observation duration of 26 months. The EFS rates at 5 years in low-risk (LR), median-risk (MR) and high-risk (HR) groups were (88.9 +/- 5.5)%, (78.5 +/- 8.0)% and (53.4 +/- 10.9)%, respectively (P < 0.05). Relapse occurred in 15 patients (10.0%) in a median time of 12 months, including 13 isolated hematologic relapses, 2 isolated central nervous system (CNS) relapses. Seven patients died of complications, and 13 died of leukemia relapse.

CONCLUSIONThe early response to therapy was an important independent prognostic factor, high-dose methotrexate (HD-MTX) was effective for preventing haematological and testicular relapse. The ALL-XH-99 protocol decreased the rate of therapy-related death and improved the long-term event-free survival rate.

Adolescent ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; mortality ; Survival Rate

OBJECTIVETo investigate the neurocognitive function of children with acute lymphoblastic leukemia (ALL) and long-term disease-free survival and related influencing factors.

METHODSA total of 40 ALL children with long-term disease-free survival were enrolled as study group, and 40 healthy children were enrolled as control group. The Chinese Wechsler Intelligence Scale for Children (C-WISC), continuous performance test (CPT), and Stroop test software were used for the evaluation of all children. Neurocognitive function was compared between groups and influencing factors were analyzed.

RESULTSCompared with the control group, the study group had significantly lower full intelligence quotient, verbal intelligence quotient, and performance intelligence quotient in C-WICS (P<0.05) and significantly higher numbers of mistakes and misses in CPT (P<0.05). There were no significant differences in the numbers of correct answers, mistakes, and misses of word-color consistency between the study group and the control group (P>0.05), while the study group had significantly higher numbers of mistakes and misses of word-color contradiction and irrelevance (P<0.05). The total dose of high-dose methotrexate and ALL risk classification were associated with the reduction in intelligence quotient, and children's younger age at diagnosis of ALL was associated with the higher numbers of misses and mistakes. Girls tended to have a significantly lower performance intelligence quotient than boys (P<0.05).

CONCLUSIONSALL children with long-term disease-free survival have neurocognitive impairment, which may be associated with the dose of chemotherapeutic drugs, age at diagnosis, and sex.

Adolescent ; Child ; Child, Preschool ; Cognition ; drug effects ; Disease-Free Survival ; Female ; Humans ; Infant ; Intelligence Tests ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; mortality ; psychology