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1.
Article in Chinese | WPRIM | ID: wpr-912532

ABSTRACT

Objective:To investigate the value of minimal residual disease (MRD) in prediction of prognosis in acute lymphoblastic leukemia (ALL) patients with or above complete remission 2 (CR2) underwent.Methods:A retrospective analysis was performed on 201 ALL patients who received allogeneic stem cell transplantation (allo-SCT) and pretransplant disease status ≥CR2 in Peking University People′s Hospital from January 2009 to December 2018. MRD was measured by multi-parameter flow cytometry at 1 month before transplantation and 1 month, 2 months, 3 months, 4 months, 6 months, 9 months or 12 months after transplantation. To investigate the influence of dynamic changes of MRD before and after transplantation on prognosis.Results:201 ALL patients, including 126 males and 75 females, with a median age of 18 years. The 3-year cumulative incidence of relapse (CIR), non-relapse mortality (NRM), leukemia-free survival (LFS) and overall survival (OS) of all cases were 34%, 16%, 50%, and 56%, respectively. Positive pre-SCT MRD patients with higher 3-year CIR (47% vs 26%, P=0.003), lower 3-year LFS (40% vs 55%, P=0.047) and OS (42% vs 60%, P=0.065) than those with negative one. Subjects with positive post-MRD had higher 3-year CIR (73% vs 22%, P<0.001) and lower 3-year LFS (28% vs 56%, P=0.005) and OS (32% vs 60%, P=0.040) compared with those with negative one. Multivariate analysis showed that both pre-MRD and post-MRD were associated with higher CIR ( HR=1.823, P=0.018; HR=3.474, P<0.001), lower LFS ( HR=1.779, P=0.007; HR=2.185, P=0.001) and OS ( HR=1.609, P=0.034; HR=1.970, P=0.001). Negative pre-and post-SCT MRD group had lower 3-year CIR (17%, 42%, 82%; P<0.001) and higher 3-year LFS (61%, 44%, 18%; P<0.001) and OS (63%, 47%, 27%; P<0.001) compared with those unrisen post-SCT MRD group, and increased post-SCT MRD group. Multivariate analysis showed that pre-and post-SCT MRD dynamics were associated with CIR, LFS and OS ( P<0.01 for all) independently. The pre-and post-SCT MRD dynamics could better distinguish CIR (C=0.669) from that of pre-SCT MRD (C=0.587) and post-SCT MRD (C=0.629). Conclusion:Our data suggest that pre-SCT MRD, post-SCT MRD and the dynamic peri-SCT MRD could be used to predict transplant outcome of ALLpatients with or above CR2 who underwent allo-SCT.

2.
Article in Chinese | WPRIM | ID: wpr-911450

ABSTRACT

Objective:To investigate the dynamic change and clinical impact of DEK-NUP214 fusion gene in patients with acute myeloid leukemia (AML) receiving allogeneic hematopoietic stem cell transplantation (allo-HSCT).Methods:Real-time quantitative polymerase chain reaction (RQ-PCR) and multicolor flow cytometry (FCM) were used to detect DEK-NUP214 gene expression and leukemia-associated immunophenotype (LAIP) in 15 newly diagnosed patients with positive DEK-NUP214 and receiving allo-HSCT from September 2012 to September 2017 at Peking University People′s Hospital. The clinical outcome was analyzed using Kaplan-Meier survival curves. The impact of DEK-NUP214 expression was analyzed by log-rank test.Results:The subjects were followed-up with a median period of 657 (62-2 212) days. The median DEK-NUP214 expression level at diagnosis was 488% (274%-1 692%). Thirteen patients achieved complete remission before allo-HSCT. Thirteen patients had a residual DEK-NUP214 expression of 0.38% (0.029%-738.9%) before allo-HSCT. After allo-HSCT, DEK-NUP214 expression in 9/13 patients remained positive, which dropped by around 500 folds (5.7-5 663.0 folds) within a month post-transplant. Five patients died and 2 patients relapsed. The 3-year cumulative incidence of relapse in patients with positive DEK-NUP214 before transplant was 17.5%±11.3% and the 3-year overall survival was 60.5%±13.8%. After allo-HSCT, DEK-NUP214-negative patients had a better outcome.Conclusion:Quantitative monitor of DEK-NUP214 fusion gene could be a sensitive indicator of MRD status after allo-HSCT.

3.
Article in Chinese | WPRIM | ID: wpr-911427

ABSTRACT

Objective:To investigate the incidences and risk factors of poor hematopoietic reconstitution (PHR) in patients with hematological diseases who underwent haploidentical allograft and were treated with rituximab for desensitization.Methods:Eight-three donor specific anti-HLA antibody (DSA, 2000 ≤MFI<10 000) positive patients who underwent haploidentical allograft were prospectively enrolled. Rituximab (375 mg/m 2) was used for desensitization day-3 of conditioning regimen. Incidence and factors associated with PHR, including primary poor graft function and prolonged thrombocytopenia, were investigated. Results:There were 22 males and 61 females with a median age of 39(range: 1-65) years. Kaplan-Meier analysis showed that the 100 day cumulative incidences of neutrophil and platelet engraftment were 93.0% and 90.7%, respectively. The incidences of PHR were 14.7%. The 3-year relapse rate, non-relapse mortality (NRM) rate, event-free survival (EFS), leukemia-free survival (DFS) and overall survival (OS) were 6.5%, 15.1%, 70.8%, 79.4% and 79.4%, respectively. Patients with DSA MFI<5 000 (group A, n=46) experienced lower PHR (4.4% vs. 27.5%, P=0.003), and higher 3-year EFS (79.5% vs. 59.8%, P=0.020) compared to those with DSA MFI≥5 000 (group B, n=37). Multivariate analysis showed that DSA MFI≥5 000 was correlated with PHR ( HR=6.101, P=0.021). PHR was associated with higher NRM ( HR=4.110, P=0.026), lower DFS ( HR=3.656, P=0.019) and OS ( HR=3.656, P=0.019). Conclusion:Our data suggest that high pre-transplant DSA level is a risk factor for PHR in patients with hematological diseases receiving haploidentical allograft and rituximab for desensitization.

4.
Chinese Journal of Hematology ; (12): 889-894, 2019.
Article in Chinese | WPRIM | ID: wpr-801361

ABSTRACT

Objective@#To investigate the current status and real performance of the detection of RUNX1-RUNX1T1 fusion transcript levels and WT1 transcript levels in China through interlaboratory comparison.@*Methods@#Peking University People’s Hospital (PKUPH) prepared the samples for comparison. That is, the fresh RUNX1-RUNX1T1 positive (+) bone morrow nucleated cells were serially diluted with RUNX1-RUNX1T1 negative (-) nucleated cells from different patients. Totally 23 sets with 14 different samples per set were prepared. TRIzol reagent was added in each tube and thoroughly mixed with cells for homogenization. Each laboratory simultaneously tested RUNX1-RUNX1T1 and WT1 transcript levels of one set of samples by real-time quantitative PCR method. All transcript levels were reported as the percentage of RUNX1-RUNX1T1 or WT1 transcript copies/ABL copies. Spearman correlation coefficient between the reported transcript levels of each participated laboratory and those of PKUPH was calculated.@*Results@#①RUNX1-RUNX1T1 comparison: 9 samples were (+) and 5 were (-) , the false negative and positive rates of the 20 participated laboratories were 0 (0/180) and 5% (5/100) , respectively. The reported transcript levels of all 9 positive samples were different among laboratories. The median reported transcript levels of 9 positive samples were from 0.060% to 176.7%, which covered 3.5-log. The ratios of each sample’s highest to the lowest reported transcript levels were from 5.5 to 12.3 (one result which obviously deviated from other laboratories’ results was not included) , 85% (17/20) of the laboratories had correlation coefficient ≥0.98. ②WT1 comparison: The median reported transcript levels of all 14 samples were from 0.17% to 67.6%, which covered 2.6-log. The ratios of each sample’s highest to the lowest reported transcript levels were from 5.3-13.7, 62% (13/21) of the laboratories had correlation coefficient ≥0.98. ③ The relative relationship of the reported RUNX1-RUNX1T1 transcript levels between the participants and PKUPH was not always consistent with that of WT1 transcript levels. Both RUNX1-RUNX1T1 and WT1 transcript levels from 2 and 7 laboratories were individually lower than and higher than those of PKUPH, whereas for the rest 11 laboratories, one transcript level was higher than and the other was lower than that of PKUPH.@*Conclusion@#The reported RUNX1-RUNX1T1 and WT1 transcript levels were different among laboratories for the same sample. Most of the participated laboratories reported highly consistent result with that of PKUPH. The relationship between laboratories of the different transcript levels may not be the same.

5.
Chinese Journal of Hematology ; (12): 812-817, 2019.
Article in Chinese | WPRIM | ID: wpr-796968

ABSTRACT

Objective@#To evaluate the efficacy of consolidation chemotherapy combined with allogeneic natural killer (NK) cell infusion in the treatment of low or intermediate-risk (LIR) acute myeloid leukemia (AML) .@*Methods@#A cohort of 23 LIR AML patients at hematologic complete remission (CR) received NK cell transfusion combined with consolidation chemotherapy after 3 consolidation courses from January 2014 to June 2019 were reviewed. Control group cases were concurrent patients from Department of Hematology, and their gender, age, diagnosis, risk stratification of prognosis, CR and the number of courses of consolidate chemotherapy before NK cell transfusion were matched with LIR AML patients.@*Results@#A total of 45 times of NK cells were injected into 23 LIR AML patients during 4 to 7 courses of chemotherapy. The median NK cell infusion quantity was 7.5 (6.6-8.6) ×109/L, and the median survival rate of NK cells was 95.4% (93.9%-96.9%) . Among them, the median CD3-CD56+ cell number was 5.0 (1.4-6.4) ×109/L, accounting for 76.8% (30.8%-82.9%) ; The number of CD3+ CD56+ cells was 0.55 (0.24-1.74) ×109/L, accounting for 8.8% (4.9%-20.9%) . Before NK cell infusion, the number of patients with positive MRD in the treatment and control groups were 9/23 (39.1%) and 19/46 (41.3%) (χ2=0.030, P=0.862) respectively. After NK infusion, There was no significant difference in terms of MRD that went from negative to positive between the treatment and the control groups (14.3% vs 22.2%, χ2=0.037, P=0.847) . In the treatment group, 66.7% (6/9) of the MRD were converted from positive to negative, which was significantly higher than that in the control group (10.5%, 2/19) (χ2=6.811, P=0.009) . Morphological recurrence occurred in 1 case of MRD negative in the treatment group and 2 cases of MRD positive in the control group. By the end of follow-up, the median follow-up was 35 (10-59) months, the number of patients with morphological recurrence in the treatment group was 30.4% (7/23) , which was significantly lower than that in the control group (50.2%, 24/46) (χ2=2.929, P=0.087) , although there was no statistically significant difference between the two groups. There was no significant difference on MRD-negative between the treatment and the control groups (43.5% vs 43.5%, χ2=1.045, P=0.307) . The 3-year leukemia-free survival was better in the treatment group [ (65.1±11.1) %] than that in the control group [ (50.0±7.4) %] (P=0.047) . The 3-year overall survival in the treatment and control groups were (78.1±10.2) % and (65.8±8.0) % (P=0.212) , respectively.@*Conclusion@#The consolidation of chemotherapy combined with allogeneic NK cell infusion contributed to the further remission of patients with LMR AML and the reduction of long-term recurrence.

6.
Modern Clinical Nursing ; (6): 8-11, 2019.
Article in Chinese | WPRIM | ID: wpr-743922

ABSTRACT

Objective To investigate the current status of perceived social support and challenge-hindrance working pressure source and explore the association between the perceived social support and challenge-hindrance working pressure source in clinical nurses. Methods The perceived social support scale and challenge-hindrance working pressure source scale were investgated in the study among 295 clinical nurses. Pearson correlation analysis was used to explore the association between the clinical nurses' perceived social support and challenge-hindrance working pressure source. Results The total score of clinical nurses' perceived social support was (62.12 ±10.48), the score of clinical nurses' challenging working pressure source was (22.63 ±3.67), and the score of hindrance working pressure source was (15.17±3.41). The clinical nurses' perceived social support and its dimensions were significantly positively related with the challenging working pressure source (P <0.01). Other support dimension of perceived social support was significantly negatively related with the hindrance working pressure source (P <0.01). Conclusions The perceived social support and challenge-hindrance working pressure source of clinical nurses are at a medium to high level. The higher level of clinical nurses' perceived social support is, the higher level of challenge working pressure sources. The family members, friends, leaders and colleagues should give more support for the clinical nurses, so as to enhance their subjective support, increase positive effect of working pressure source, promote their progress and improve their quality of nursing.

7.
Chinese Journal of Hematology ; (12): 998-1003, 2018.
Article in Chinese | WPRIM | ID: wpr-807775

ABSTRACT

Objective@#To investigate the clinical significance of minimal residual disease (MRD) monitoring by using WT1 gene and flow cytometry (FCM) in patients with myelodysplastic syndrome (MDS) who receiving allogeneic stem cell transplantation (allo-HSCT).@*Methods@#WT1 gene and MDS-related abnormal immunophenotype were examined by real-time quantitative polymerase chain reaction (RQ-PCR) and FCM, respectively. The bone marrow samples were collected from patients with MDS who received allo-HSCT from Feb, 2011 to Oct, 2015 in Peking University People’s Hospital before and after transplantation.@*Results@#Among 92 MDS patients, 40 (48.2%) patients were positive for WT1 (WT1+) and 9 (10.8%) patients were positive for flow cytometry (FCM+). 27 patients (29.3%) met the criteria of our combinative standard, MRDco (MRDco+). Only FCM+ post-transplant (P<0.001) and MRDco+ (P=0.017) were associated with relapse. The cumulative incidence of relapse (CIR) at 2 years were 66.7% and 1.2% (P<0.001) in FCM+ and FCM- groups. MRDco+ group had a 2-year CIR of 23.0% while MRDco- group had a 2-year CIR of 1.6% (P=0.004). The specificity of post-transplant WT1, FCM and MRDco to predict relapse was 59.0%, 96.4% and 74.7%, respectively. The sensitivity of these three MRD parameters to predict relapse was 66.7%.@*Conclusion@#Post-transplant FCM and MRDco are useful tools to monitor MRD for MDS after transplantation. The preemptive intervention based on MRDco is able to reduce the relapse rate.

8.
Article in Chinese | WPRIM | ID: wpr-507174

ABSTRACT

Objective To investigate the clinical characteristics of the human Adenovirus (HAdv) infections in allogeneic hematopoietic stem cell transplantation ( allo-HSCT) patients and explore the clinical significance of HAdv monitoring .Methods A total of 845 cases underwent allo-HSCT were included retrospectively in Perking University People′s Hospital from October 2012 to August 2014.Peripheral blood HAdv load were monitored twice weekly within 100 days after allo-HSCT, or whenever necessary quantitatively by real-time PCR. Meanwhile, other clinical samples such as stool , urine, and bronchoalveolar lavage fluid ( BLAF ) were also detected qualitatively whenever necessary .The follow-up period was at least six months after allo-HSCT.All clinical data were collected and analyzed .Results The total positive rate of HAdv was 3.4% ( 29/845 ) .The incidence of HAdv infection was higher in children [3.8%(6/155), 2 ) clinically, 1 cases with pneumonia.There were 8 cases of death at the end of follow-up.Conclusions HAdv is an important pathogen causing infection in patients after allo-HSCT. The infenction is characterized with multiple organ involvement .CMV and EBV coinfection is common .HAdv monitoring was of great significance in allo-HSCT patients.

9.
Chinese Journal of Hematology ; (12): 934-939, 2017.
Article in Chinese | WPRIM | ID: wpr-809584

ABSTRACT

Objective@#To analyze the clinical value of real-time PCR for virus detection in the diagnosis and treatment of patients after allo-HSCT who had no infection evidence of pneumonia using routine pathogen detection panel.@*Methods@#The clinical data of 71 episodes with acute lung injury from May 2015 to March 2017 after allo-HSCT in hematology department of Peking University People’s Hospital (PKUPH) were retrospectively analyzed. PCR for virus detection and other routine pathogen detection tests were performed on bronchoalveolar lavage fluid (BALF) samples.@*Results@#Among 71 episodes with acute lung injury, a total of 15 patients were diagnosed as lower respiratory tract disease merely associated with virus (detection rate of 21.13%) , 19 episodes were absent of lower respiratory tract infection. The median time from allo-HSCT to the occurrence of lung injury were 176 (49-1 376) d and 196 (57-457) d respectively (z=-0.191, P=0.864) . There were no statistical differences for baseline characteristics and clinical features between two groups. The 100-day attributable mortalities were 13.3% (2/15) and 26.3% (5/19) (χ2=0.864, P=0.426) . Patients with low-dose steroids treatment had favorable outcome than those with high-dose steroids treatment (the dose of methylprednisolone ≥250 mg/d as standard) [4.2% (1/24) vs 60.0% (6/10) ]. In patients with detectable virus in BALF, 2 patients died with early high-dose steroids treatment, while 11 patients survived with no steroids treatment or late application.@*Conclusions@#Virus infection should be considered in post-HSCT pneumonia patient with negative result using routine pathogen detection panel. Expanding virus detection panel by PCR in BALF could increase diagnostic precision and might be instructive to treatment.

10.
Chinese Journal of Hematology ; (12): 690-694, 2017.
Article in Chinese | WPRIM | ID: wpr-809184

ABSTRACT

Objective@#To investigate the clinical significance of PCR detection of human herpesvirus 6 (HHV6) in gastro biopsy on the course of diarrhea in patients with severe diarrhea after allogeneic hematopoietic stem cell transplantation (HSCT) .@*Methods@#Data from a cohort of 45 HSCT recipients (including age, sex, transplantation conditions, graft-versus-host disease, treatments, clinical signs, outcome, HHV6, and other infections) performed between 2015 and 2016 were collected. Univariate analysis was used to evaluate influences between the different parameters.@*Results@#Of the 45 enrolled recipients, 21 patients (46.7%) presented HHV6 positive in gastro-biopsy during the analyzed period. The incidence of CMV viremia in the positive HHV6 group was comparable with that in the negative HHV6 group. But the incidence of EBV viremia in the positive HHV6 group was significantly higher than in the negative HHV6 group (P=0.028) . 44 out of 45 patients with severe diarrhea were given antiviral treatment with foscarnet and/or ganciclovir, the latter didn’t influence the course of the diarrhea.@*Conclusions@#Positive PCR results in GI tract samples didn’t necessarily reflect reactivation of HHV6. Further studies are needed to define the significance of HHV6 for GI tract symptoms after allo-HSCT.

11.
Chinese Journal of Hematology ; (12): 680-684, 2017.
Article in Chinese | WPRIM | ID: wpr-809182

ABSTRACT

Objective@#To investigate the clinical significance of monitoring ETV6-RUNX1 fusion gene in children with acute lymphoblastic leukemia (ALL) after allogeneic stem cell transplantation (allo-HSCT) .@*Methods@#Clinical data of 13 children received allo-HSCT in Peking University Institute of Hematology from May 2009 to March 2016 were retrospectively collected. The ETV6-RUNX1 gene was examined by real-time quantitative polymerase chain reaction (RQ-PCR) . The correlation between its expression level and the disease status was analyzed.@*Results@#Of 13 enrolled ALL cases, the ETV6-RUNX1 expression of 7 patients converted to positive after transplant at a median time of 137 days (range, 28-270 days) . The expression level of the first positive sample was 0.034% (range, 0.004%-0.061%) . The duration from ETV6-RUNX1 positive to hematological relapse was 196 days (range, 28-666 days) . Four patients experienced relapse at a median time of 294 days (range, 104-803 days) after allo-HSCT. The ETV6-RUNX1 expression converted to positive prior to MRD. Patients with positive ETV6-RUNX1 gene expression pre-transplantation would be more likely to relapse.@*Conclusion@#Monitoring ETV6-RUNX1 by RQ-PCR could be used to evaluate MRD status after allo-HSCT. Patients with positive ETV6-RUNX1 after transplant had a poor prognosis.

12.
Chinese Journal of Hematology ; (12): 642-646, 2015.
Article in Chinese | WPRIM | ID: wpr-296183

ABSTRACT

<p><b>OBJECTIVE</b>To probe monitoring Wilms tumor-1(WT1)gene expression level in acute T lymphoblastic leukemia(T- ALL)following allogeneic hematopoietic stem cell transplantation(allo-HSCT)with prognostic significance.</p><p><b>METHODS</b>This retrospective study analyzed 68 T-ALL cases from January 2009 to March 2012, that monitoring WT1 gene expression level after allo-HSCT. WT1 expression level was measured with real-time quantitative reverse transcription polymerase chain reaction(RQ-PCR) method at + 30, + 60, + 90, + 180, + 270, + 360 days after allo-HSCT, simultaneously monitoring residual leukemia using flow cytometry(FCM).</p><p><b>RESULTS</b>Low WT1 gene expression level associated with a low risk of recurrence after allo-HSCT in T-ALL. Increased WT1 gene expression levels at +60 and + 90 days after allo- HSCT associated with higher cumulative incidences of relapse(P<0.001, P=0.003), and low disease- free survival rates(P=0.004, P=0.006), and low overall survival rates(P=0.004, P=0.007). The presence of MRD after allo-HSCT was an independent prognostic factor for relapse in T-ALL. Combining WT1 gene and FCM could be used to monitor recurrence after allo-HSCT.</p><p><b>CONCLUSION</b>Increased WT1 gene expression level at +60 and + 90 days after allo-HSCT significantly associated with worse prognosis, that should be intervened as early as possible to reduce the risk of recurrence or death. WT1 gene expression level that was less than 0.6% associated with lower risk of recurrence. WT1 gene expression more than 0.6% that needed close follow- up, combined with FCM monitoring MRD, which required intervention to reduce the relapse.</p>


Subject(s)
Disease-Free Survival , Flow Cytometry , Gene Expression , Hematopoietic Stem Cell Transplantation , Humans , Neoplasm, Residual , Precursor T-Cell Lymphoblastic Leukemia-Lymphoma , Prognosis , Recurrence , Retrospective Studies , Survival Rate , Transplantation, Homologous , WT1 Proteins
13.
Chinese Journal of Hematology ; (12): 989-993, 2015.
Article in Chinese | WPRIM | ID: wpr-296102

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the clinical characteristics of E2A-PBX1(immunoglobulin enhancer binding factor-pre-B leukemia)fusion gene in patients with acute lymphoblastic leukemia(ALL) after allogeneic stem cell transplantation(allo-HSCT).</p><p><b>METHODS</b>Clinical data of 10 patients received allo- HSCT in Peking University Institute of Hematology from December 2010 to January 2015 were retrospectively collected. The E2A-PBX1 gene was examined by real-time quantitative polymerase chain reaction(RQ- PCR). The correlation between its expression level and the disease status was analyzed.</p><p><b>RESULTS</b>Among 10 cases of enrolled ALL, the E2A-PBX1 expression of six patients converted to positive after transplant at a median time of 90 days(range, 75-180 days). The expression level of the first positive sample was 25.200%(range, 0.022%-353.600%). The duration from E2A-PBX1 positive to hematological relapse was 30 days(range, 0-74 days). Finally, 4 patients underwent relapse at a median time of 164 days (range, 75- 240 days) after allo- HSCT. The expression of E2A- PBX1 and minimal residual disease (MRD)level examined by flow cytometry were positive correlated(Spearman r=0.743, P=0.002). Once E2A-PBX1 expression converted to positive after transplant, MRD would increase rapidly. Patients with this type of ALL would have little response to the current intervention towards relapse.</p><p><b>CONCLUSION</b>Monitoring E2A-PBX1 by RQ-PCR could be used to evaluate MRD status after allo-HSCT. Patients with positive E2A-PBX1 at early stage of transplant will have a poor prognosis.</p>


Subject(s)
Flow Cytometry , Hematopoietic Stem Cell Transplantation , Homeodomain Proteins , Metabolism , Humans , Neoplasm, Residual , Oncogene Proteins, Fusion , Metabolism , Precursor Cell Lymphoblastic Leukemia-Lymphoma , Genetics , Therapeutics , Real-Time Polymerase Chain Reaction , Recurrence , Retrospective Studies
14.
Article in Chinese | WPRIM | ID: wpr-429248

ABSTRACT

Objective To compare the clinical features of cytomegalovirus (CMV) infection and CMV disease after allogeneic hematopoietic stem-cell transplantation (HSCT) from HLA haploidentical related doors vs.HLA-matched sibling donors.Methods A total of 327 patients who received allogeneic HSCT from Jan.2011 to Dec.2011 were enrolled.There were 312 patients who had complete serological data before HSCT including 216 cases of HLA haploidentical related HSCT and 96 cases of HLA-matched sibling HSCT.Monitoring of CMV antigenemia was performed by using real-time quantitative (RQ) PCR after transplantation.Risk factors were compared by univariate and multivariate analysis.Results The cumulative incidence of CMV infection and CMV disease was (80.1 ± 2.7) % and (8.7 ± 2.0) % in HLA haploiddentical HSCT group,and (21.1 ± 4.9) % and 0 in HLA-matched sibling HSCT group respectively,and the difference was statistically significant between the two groups (P<0.01).Univariate analysis revealed that HLA haploidentical related HSCT,less than 20 years of age,high risk disease,CMV-IgG serum positivity in patients or donors,acute graft-versus-host disease (aGVHD),EB viremia,and hemorrhagic cystitis were the risk factors of CMV infection.HLA haploidentical related SCT and hemorrhagic cystitis were the risk factors for CMV disease.Multivariate analysis showed that patients less than 20 years of age had a significantly high incidence of CMV infection.Patients from HLA-matched sibling HSCT,low risk disease,aGVHD,hemorrhagic cystitis had a significantly low incidence of CMV infection.Conclusion Compared with patients receiving HLA-matched sibling HSCT,those who received HLA haploidentical related HSCT had significantly high incidence of CMV infection and CMV disease,which were correlated with incidence of hemorrhagic cystitis.

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