Sarcopenia and gut microbiota alterations in patients with hematological diseases before and after hematopoietic stem cell transplantation

Objective: The aim of this study was to investigate the prevalence of sarcopenia(SP) and its relationship with gut microbiota alterations in patients with hematological diseases before and after hematopoietic stem cell transplantation(HSCT).Methods: A total of 108 patients with various hematological disorders were selected from Peking University People’s Hospital. SP was screened and diagnosed based on the 2019 Asian Sarcopenia Diagnosis Strategy. Physical measurements and fecal samples were collected, and 16S rRNA gene sequencing was conducted. Alpha and beta diversity analyses were performed to evaluate gut microbiota composition and diversity.Results: After HSCT, significant decreases in calf circumference and body mass index(BMI) were observed,accompanied by a decline in physical function. Gut microbiota analyses revealed significant differences in the relative abundance of Enterococcus, Bacteroides, Blautia and Dorea species before and after HSCT(P<0.05). Before HSCT, sarcopenic patients had lower Dorea levels and higher Phascolarctobacterium levels than non-sarcopenia patients(P<0.01). After HSCT, no significant differences in species abundance were observed. Alpha diversity analysis showed significant differences in species diversity among the groups, with the highest diversity in the postHSCT 90-day group and the lowest in the post-HSCT 30-day group. Beta diversity analysis revealed significant differences in species composition between pre-and post-HSCT time points but not between SP groups. Linear discriminant analysis effect size(LEfSe) identified Alistipes, Rikenellaceae, Alistipes putredinis, Prevotellaceae defectiva and Blautia coccoides as biomarkers for the pre-HSCT sarcopenia group. Functional predictions showed significant differences in anaerobic, biofilm-forming and oxidative stress-tolerant functions among the groups(P<0.05).Conclusions: This study demonstrated a significant decline in physical function after HSCT and identified potential gut microbiota biomarkers and functional alterations associated with SP in patients with hematological disorders. Further research is needed to explore the underlying mechanisms and potential therapeutic targets.

The Impact of Blood Transfusion on the Efficiency of Stem Cell Transplants

Background: While blood product transfusion is essential for managing hematologic deficits in Allogenic Hematopoietic stem cell transplant (AHSCT) recipients, it has risks including infectious disease transmission, alloimmunization, and transfusion reactions. These risks have sparked an ongoing debate regarding the overall impact of transfusions on patient outcomes. Thus, this study aimed to evaluate the impact of Red Blood Cells (RBCs) and/or platelet transfusion on the infection incidence and overall survival in AHSCT patients. Methods: We performed a retrospective analysis of clinical and laboratory data of sixty adult patients with primary malignant hematological disorder who had undergone AHSCT. Participants’ data were categorized into two groups;Group 1 (low transfusion group) consisted of patients receiving 10 units. Quantitative data were expressed as mean ± SD. The t-test of significance and Chi-square (χ2) test were used, with p ≤ 0.05 considered significant. Result: A total of 60 patients’ data was included. In Group 1, out of 30 patients, 13 (43.33%) developed infections. In contrast, Group 2 had 21 (70%) out of 30 patients develop infections. Group 1 had a higher survival rate (57.8%) than Group 2 (transfusion > 10 units) (46.2%) with a chi-square value = 23.56, and p-value Conclusion: The volume of blood product transfusions has a considerable impact on patient outcomes, particularly infection and survival rates. Additional long-term prospective studies and larger randomized controlled trials are needed to strengthen the evidence for determining transfusion protocols for these patients.

Development of Non-ABO Red Blood Cell Alloantibodies in Patient Undergoing Allogeneic Haematopoietic Stem Cell Transplant

Alloantibodies that are non ABO Alloimmunization to protein antigens happens only after exposure, in contrast to ABO isohaemagglutinins, which are present naturally, even in the absence of prior exposure. It is recognized that while non-ABO RBC antibodies are less common than ABO antibodies, they generate essentially the same issues that lead to unfavorable clinical results. If non-ABO alloantibodies are identified early on, these issues related complications may be avoided This call for an in-depth understanding of the recipient and donor’s ABO-Rh grouping, antibody screening, and the phenotype of certain antigens. Equally important, the temporal association time between transplantation and hemolysis can help identify the underlying mechanism of hemolysis and direct appropriate management. Therefore, for that, it is crucial to identify the etiology of post-HSCT anemia for prevention and therapy, in addition to a thorough grasp of the mechanism of anemia in non-ABO-incompatible HSCT and the temporal link between HSCT and anemia. Finding the cause of post-HSCT anemia is essential for prevention and therapy, in addition to a thorough grasp of the mechanism of anemia in non-ABO-incompatible HSCT and the temporal link between HSCT and anemia. Therefore, for that, it is crucial to identify the etiology of post-HSCT anemia. In this case report review, we would like to highlight the vital role of transfusion medicine services and stem cell clinical teams in paying particular attention to the clinical significance of non-ABO alloantibodies involved to avoid causing overt hemolysis of incompatible donor RBCs or delayed erythropoiesis. Considering the fact that some of the Haematopoietic stem cell transplant centers do not give an attention to the other non-ABO RBC antigens.

Comprehensive evaluation of nutritional status before and after hematopoietic stem cell transplantation in 170 patients with hematological diseases

Objective： To investigate the nutritional status of patients before and after hematopoietic stem cell transplantation（HSCT）, and explore optimal methods for assessing nutritional status in patients with hematological diseases.Methods： This cohort study enrolled 170 patients who were diagnosed with hematological diseases and underwent allogeneic HSCT in the Department of Hematology, Peking University People＇s Hospital between May2011 and April 2013. We used fixed-point continuous sampling and four nutritional screening tools, Nutritional Risk Screening 2002（NRS-2002）, Mini Nutritional Assessment（MNA）, Subjective Global Assessment（SGA） and Malnutrition Universal Screening Tools（MUST）, in combination with body measurements, to extensively screen and evaluate nutritional risks and status in patients receiving HSCT before entering and after leaving laminar air flow rooms.Results： After HSCT, patients had significant reduction in weight, hip circumference, waist-hip ratio, calf circumference, mid-upper arm circumference, and suprailiac skinfold thickness compared with pre-HSCT measurements. Before HSCT, NRS-2002 identified that 21.2% of patients were at nutritional risks, compared with100% after HSCT. MUST indicated that before HSCT, 11.77% of patients were at high nutritional risk,compared with 59.63% after HSCT. MNA assessed that 0.06% of patients were malnourished before HSCT,compared with 19.27% after HSCT. SGA identified that before HSCT, 1.76% of patients had mild to severe malnutrition, which increased to 83.3% after HSCT. There is a significant increase in the nutritional risk and malnutrition in patients who received HSCT.Conclusions： Before HSCT, some patients already had nutritional risk or nutritional deficiencies, and prompt and close nutritional screening or assessment should be performed. The nutritional status of patients after HSCT was generally deteriorated compared with that before transplantation. Body measurements should be taken more frequently during the subsequent treatment window in the laminar air flow rooms. After HSCT, it is recommended to combine MNA and SGA to fully evaluate the nutritional status, and thus provide timely and reasonable nutritional support.

Optimal stem cell source for allogeneic stem cell transplantation for hematological malignancies

Hematopoietic stem cell transplant(HSCT) is a standard treatment for many hematological malignancies.Three different sources of stem cells, namely bone marrow(BM), peripheral blood stem cells(PBSC) and cord blood(CB) can be used for HSCT, and each has its own advantages and disadvantages. Randomized controlled trials(RCTs) suggest that there is no significant survival advantage of PBSC over BM in Human Leukocyte Antigen-matched sibling transplant for adult patients with hematological malignancies. PBSC transplant probably results in lower risk of relapse and hence better disease-free survival, especially in patients with high risk disease at the expense of higher risks of both severe acute and chronic graft-versus-host disease(GVHD).In the unrelated donor setting, the only RCT available suggests that PBSC and BM result in comparable overall and disease-free survivals in patients with hematological malignancies; and PBSC transplant results in lower risk of graft failure and higher risk of chronic GVHD.High level evidence is not available for CB in comparison to BM or PBSC. The risks and benefits of different sources of stem cells likely change with different conditioning regimen, strategies for prophylaxis and treatment of GVHD and manipulation of grafts. The recent success and rapid advance of double CB transplant and haploidentical BM and PBSC transplants further complicate the selection of stem cell source. Optimal selection requires careful weighing of the risks and benefits of different stem cell source for each individual recipient and donor. Detailed counseling of patient and donor regarding risks and benefits in the specific context of the patient and transplant method is essential for informed decision making.

Advances in haplo-identical stem cell transplantation in adults with high-risk hematological malignancies

Allogeneic bone marrow transplant is a life-saving procedure for adults and children that have high-risk or relapsed hematological malignancies. Incremental advances in the procedure, as well as expanded sources of donor hematopoietic cell grafts have significantly improved overall rates of success. Yet, the outcomes for patients for whom suitable donors cannot be found remain a significant limitation. These patients may benefit from a hematopoietic cell transplant wherein a relative donor is fully haplotype mismatched. Previously this procedure was limited by graft rejection, lethal graft-versus-host disease, and increased treatmentrelated toxicity. Recent approaches in haplo-identical transplantation have demonstrated significantly improved outcomes. Based on years of incremental preclinical research into this unique form of bone marrow transplant, a range of approaches have now been studied in patients in relatively large phase Ⅱ trials that will be summarized in this review.

Autologous hematopoietic stem cell transplantation in chemotherapy-sensitive lymphoblastic lymphoma: treatment outcome and prognostic factor analysis

Objective： The study evaluated the effectiveness of autologous hematopoietic stem cell transplantation （AHSCT） in the treatment of lymphoblastic lymphoma （LL）. Methods： We relxospectively analyzed the data from 41 patients with chemotherapy-sensitive LL who underwent hematopoietic stem cell transplantation （HSCT） from December 1989 to December 2009 in a single institution. Results： HSCT was conducted as first-line consolidation therapy and salvage therapy in 36 and 5 patients, respectively. The median follow-up was 97.1 months （range, 24.6-173.1 months）. The 5-year overall survival （OS） and event-free survival （EFS） rate were 64% and 47% for the initially treated patients, respectively, and were both 20% for the relapsed ones. Bone marrow （BM） involvement and chemotherapy cycles prior to transplantation were identified as significant prognostic factors for EFS in multivariate analysis. Conclusions These results confirm that AHSCT is a reasonable option for chemotherapy-sensitive LL patients in first complete remission （CR1）.

Cellular immunotherapy for hematological malignancy: recent progress and future perspectives

Advancements in the field of cellular immunotherapy have accelerated in recent years and have changed the treatment landscape for a variety of hematologic malignancies.Cellular immunotherapy strategies exploit the patient’s immune system to kill cancer cells.The successful use of CD19 chimeric antigen receptor(CAR)T-cells in treating B-cell malignancies is the paradigm of this revolution,and numerous ongoing studies are investigating and extending this approach to other malignancies.However,resistance to CAR-Tcell therapy and non-durable efficacy have prevented CAR-T-cells from becoming the ultimate therapy.Because natural killer(NK)cells play an essential role in antitumor immunity,adoptively transferred allogeneic NK and CAR-modified NK cell therapy has been attempted in certain disease subgroups.Allogenic hematopoietic stem cell transplantation(allo-HSCT)is the oldest form of cellular immunotherapy and the only curative option for hematologic malignancies.Historically,the breadth of application of allo-HSCT has been limited by a lack of identical sibling donors(ISDs).However,great strides have recently been made in the success of haploidentical allografts worldwide,which enable everyone to have a donor.Haploidentical donors can achieve comparable outcomes to those of ISDs and even better outcomes in certain circumstances because of a stronger graft vs.tumor effect.Currently,novel strategies such as CAR-T or NK-based immunotherapy can be applied as a complement to allo-HSCT for curative effects,particularly in refractory cases.Here,we introduce the developments in cellular immunotherapy in hematology.

Allogeneic hematopoietic stem cell transplantation for patients with acute leukemia

Objective： The purposes of this study were to assess the efficacy of allogeneic hematopoietic stem cell transplantation （HSCT） for acute leukemia （AL） and analyze the factors affecting the prognosis of these patients. Methods： The clinical and follow-up data of 93 AL patients （median age, 30 years） undergoing allogeneic HSCT in Xiangya Hospital over the past 12 years were collected, and the potential factors affecting the efficacy and prognosis of allogeneic HSCT patients were determined. Results： Hematopoietic reconstitution was achieved in 90 patients. At the last follow-up, the incidences of severe acute graft versus host disease （aGvHD） and extensive chronic GvHD （cGvHD） were 14.0% and 20.0%, the 3-year cumulative incidence of transplantation related mortality （TRM） and relapse rate were 16.8%±6.1% and 21.3%±6.7%, and the estimated 3-year overall survival （OS） and disease-free survival （DFS） of the patients were 64.6%±5.4% and 56.5%±5.5%, respectively. Univariate analysis indicated that age older than 40 years, HLA mismatch, and severe lung infection within the first 100 days after transplantation were risk factors for severe aGvHD, age older than 40 years, HLA mismatch, severe lung infection within the first 100 days after transplantation, and severe aGvHD were risk factors for TRM, high-risk AL and lack of cGvHD were risk factors for relapse （all P〈0.05）. Survival estimation showed that HLA mismatch, severe lung infection occurring within the first 100 days post-transplantation, high-risk AL severe aGvHD and lack of cGvHD were risk factors associated with poor prognosis （all P〈0.05）. Further multivariate analyses revealed that severe lung infection within the first 100 days post-transplantation, severe aGvHD and lack of cGvHD were independent risk factors for unfavorable outcomes （all P〈0.05）. Conclusions： Allogeneic HSCT can improve the DFS of AL patients, and severe lung infection within the first 100 days post-transplantation, severe aGvHD and lack of cGvHD are independent risk factors affecting the prognosis.

Decitabine for Relapsed Acute Lymphoblastic Leukemia after Allogeneic Hematopoietic Stem Cell Transplantation

Relapse after allogeneic hematopoietic stem cell transplantation（allo-HSCT） remains a main question on treatment failure. Current strategies for management that usually include salvage chemotherapy, donor lymphocytic infusion and second transplantation. Our study assessed the efficacy of decitabine（DAC） for treating patients with acute lymphoblastic leukemia（ALL） who relapsed after allogeneic hematopoietic stem cell transplantation（allo-HSCT）. We retrospectively analyzed the outcomes of 12 patients with relapsed ALL after allo-HSCT who received DAC therapy. Nine patients received DAC combined with chemotherapy and donor stem cell infusion, and 3 patients received single-agent DAC. Ten of the 12 patients achieved complete remission（CR）, 1 achieved a partial remission（PR）, and 1 had no response（NR） after treatment at the latest follow-up（LFU）, the median survival was 11.2 months（range, 3.8–34, 7 months）. The 1-and 2-year overall survival（OS） rates were 50%（6/12） and 25%（3/12）, respectively. Five patients were still alive; 4 had maintained CR and 1 was alive with disease. Patients with Philadelphia chromosome-positive ALL had higher survival rate than patients with Philadelphia chromosome-negative ALL（57.1% vs. 20%）. No aggravated flares of graft-versus-host disease（GVHD） were observed during DAC treatment. Therefore, DAC may be a promising therapeutic agent for ALL recurrence after allo-HSCT.

Progress in treatment of peripheral T-cell lymphoma with hematopoietic stem cell transplantation

The general chemotherapy for Peripheral T-cell lymphoma(PTCL) featuring an active invasion has less curative effect and worse prognosis in comparison with that for B-cell non-Hodgkin's lymphoma(NHL).Studies in recent years suggest that hematopoietic stem cell transplantation(HSCT) has better curative effect on the PTCL;however,it is significant to do more studies on some aspects such as the methodology,punctuality,preconditioning,and pretreatment intensity of the transplantation,which are crucial to the curative effect.

Hemorrhagic cystitis following hematopoietic stem cell transplantation:risk factors and prophylaxis measures

Objective To investigate the efficacy and safety of the optimal alkalized hydration solution for hemorrhagic cystitis ( HC) following unrelated donor allogeneic hem-

Efficacy of rituximab-containing regimens on post-transplantation lymphoproliferative disorder following haploidentical hematopoietic stem cell transplantation:a report of 3 cases

Objective To evaluate the efficacy of rituximab-containing regimens on post - transplantation lympho-proliferative disorder ( PTLD ) following haploidentical hematopoietic stem cell transplantation ( HSCT) . Methods The clinical data of 3 cases of PTLD after haploidentical HSCT were analyzed retrospectively. Time

淋巴瘤患者行干细胞移植联合CD30嵌合抗原受体T细胞输注治疗的护理

目的 总结6例复发/难治性CD30阳性淋巴瘤患者进行自体干细胞移植联合抗CD30嵌合抗原受体T细胞输注治疗的护理经验。方法 对6例复发/难治性CD30阳性淋巴瘤患者,完善治疗前的护理评估,重点落实预处理毒性、细胞因子释放综合征以及植入综合征的护理,并将心理支持及健康教育纳入整个治疗过程。结果 6例患者均成功植入造血干细胞,外周血中检测到持续性CAR30转基因,其中5例完全缓解,1例部分缓解。5例出现细胞因子释放综合征,均为Ⅰ级,未观察到神经毒性。随访20.4(12.1,34.4)个月,患者均存活并保持其反应性。结论 自体干细胞移植联合抗CD30嵌合抗原受体T细胞输注治疗具有良好的耐受性和高度活性,护理在治疗各阶段以及毒副反应管理中发挥重要作用。

异基因造血干细胞移植输血不良反应风险预警模型的构建及验证

目的:探讨异基因造血干细胞移植(allo-HSCT)输血不良反应的危险因素,建立风险预警模型。方法:选取2018年1月—2023年2月我院收治的115例allo-HSCT病人作为研究对象,将其分为建模组(73例)和验证组(42例)。对病人一般资料进行调查,对病人血清中C反应蛋白(CRP)、白蛋白(ALB)、中性粒细胞、淋巴细胞进行检验,计算CRP/ALB和中性粒细胞与淋巴细胞比值(NLR),采用单因素分析和Logistic回归分析筛选allo-HSCT输血不良反应的危险因素,构建风险预警模型并转化为风险评分系统;采用受试者工作特征(ROC)曲线和Hosmer-Lemeshow(H-L)检验评价模型的区分度与校准度;对预警模型进行验证。结果:发生输血不良反应组CRP/ALB和NLR高于未发生输血不良反应组,差异有统计学意义(均P<0.05)。Logistic回归分析结果显示,输血次数≥3次、有原发性血液病史、有输血史、有过敏史、病人基础体温≥38℃、发血至输血时间≥30 min、输注红细胞滴速每分钟≥50滴、输注血小板滴速每分钟≥90滴以及CRP/ALB≥0.90和NLR≥1.37是allo-HSCT发生输血不良反应的危险因素(均P<0.05)。建模组ROC曲线下面积为0.841,H-L检验结果显示P=0.856,模型的灵敏度为0.909,特异度为0.775,Youden指数为0.684。验证组ROC曲线下面积为0.798,H-L检验结果显示P=0.813,灵敏度为0.818,特异度为0.775,Youden指数为0.593。结论:构建的allo-HSCT输血不良反应风险预警模型预测效能较好,可为allo-HSCT输血不良反应的护理提供针对性的指导。

造血干细胞移植患者中医序贯式运动方案的构建及应用

目的探讨中医序贯式运动方案对造血干细胞移植患者的康复效果。方法干预小组基于循证方法学,构建造血干细胞移植患者序贯式中医运动方案。选取44例患者作为研究对象,将患者随机分为干预组和对照组各22例。对照组实施常规造血干细胞移植运动康复方案,干预组在此基础上实施序贯式中医运动康复方案。比较两组不同时间简易体能状况、疲劳严重程度、身体质量指数、改良Barthel指数和运动康复过程中不良事件发生率、运动康复依从性。结果移植后14 d、28 d,干预组体能状况、疲劳严重程度、改良Barthel指数和运动康复依从性评分显著优于对照组(均P<0.05),均未发生运动相关不良事件。结论对造血干细胞移植患者实施中医序惯运动方案可行和安全,可提高造血干细胞移植患者运动能力,促进康复。

自体造血干细胞移植临床应用面临的科学问题及展望

自体造血干细胞移植常用于治疗多发性骨髓瘤、恶性淋巴瘤、低危组急性粒细胞白血病,适应证目前已经拓展至某些遗传性血液系统疾病以及自身免疫性疾病。自体造血干细胞的动员、采集、冻存及复苏等质量控制对于移植的成功率非常重要,未来针对造血干细胞质量控制相关的研究会进一步的深入和优化。现阶段,中国的自体造血干细胞移植数量较欧美仍较少,但随着各移植中心技术的成熟,移植医生对移植患者年龄的主动拓展、对移植前化疗方案的优化更新,预处理方案的选择和优化,以及移植后的系统管理,自体造血干细胞的成功率和安全性将得到进一步的提高。基于此,我们推测中国自体造血干细胞移植未来的数量和质量将会大幅度的提升,而与此相匹配的相关科学问题将成为未来临床科研工作者面临的挑战和机遇。

分析睡眠干预对造血干细胞移植患者睡眠质量的效果

目的:分析睡眠干预改善造血干细胞移植患者睡眠质量的效果。方法:选取2022年8月至2023年12月厦门大学附属第一医院血液科收治的造血干细胞移植患者80例作为研究对象,按照随机数字表法分为对照组和观察组,每组40例。对照组给予常规护理干预,观察组给予综合睡眠干预。采用匹兹堡睡眠质量指数(PSQI)比较2组患者干预前后睡眠质量的变化,采用简易体能状况量表(SPPB)比较2组患者干预前后的躯体功能;采用造血干细胞移植后生命质量调查表(FACT-BMT)评估2组患者干预前后的生命质量。结果:干预后,观察组PSQI评分显著低于对照组,观察组SPPB评分、FACT-BMT评分显著高于对照组,差异均有统计学意义(均P<0.05)。结论:为造血干细胞移植患者实施综合睡眠干预,有助于提高患者的睡眠质量,增强躯体功能,改善患者的生命质量。

血液病患者产生抗HLA抗体的危险因素分析

目的在造血干细胞移植前的血液病患者中,探究抗人类白细胞抗原(human leucocyte antigen,HLA)抗体产生的危险因素。方法收集2016-2018年间本院1008名血液病患者在移植前采用Luminex技术平台进行抗HLA抗体检测的结果及临床数据,并对其进行统计学分析。结果1008名患者的抗HLA抗体总体阳性率为24.08%。多因素分析显示,与抗HLA抗体产生相关的独立危险因素包括年龄≥30岁(P=0.046,OR 1.467,95%CI 1.007-2.136)、疾病确诊至抗体检测的时间≥41d(P=0.000,OR 1.830,95%CI 1.306-2.565)、初诊PLT计数<20×109/L(P=0.020,OR 1.543,95%CI 1.072-2.220)、有妊娠史(P=0.000,OR 5.187,95%CI 3.689-7.293)、入院前有输血史(P=0.001,OR 1.762,95%CI 1.257-2.470)和入院后PLT输注总量≥30U(P=0.000,OR 2.352,95%CI 1.638-3.376)。其中年龄≥30岁(P=0.023,OR=1.839,95%CI 1.088-3.108)、妊娠史(P=0.042,OR=5.258,95%CI 1.062-26.038)分别与抗HLA-Ⅰ类、Ⅱ类抗体的产生有关;疾病确诊至抗体检测时间≥41d(P=0.000,OR=2.873,95%CI 1.612-5.119)、初诊PLT计数<20×109/L(P=0.008,OR=2.164,95%CI 1.225-3.822)、妊娠史(P=0.002,OR=6.734,95%CI 1.993-22.751)、入院前的输血史(P=0.001,OR=2.746,95%CI 1.531-4.925)、入院后PLT输注>30U(P=0.006,OR=3.459,95%CI 1.416-8.451)与抗HLA-Ⅰ+Ⅱ类抗体的产生有关。结论年龄较大、病程较长、PLT计数较低、有妊娠史和输血史、PLT输注总量较多,均是影响抗HLA抗体产生的危险因素。因此,对移植前血液病患者宜根据情况检测抗HLA抗体,这对于指导供者选择、监测抗体变化和改善移植预后具有重要价值。

造血干细胞移植治疗老年髓系肿瘤的临床分析

目的:探讨造血干细胞移植(hematopoietic stem cell transplantation,HSCT)对老年髓系肿瘤患者生存结局的影响。方法:回顾性分析2018年1月至2023年5月于南方医科大学附属珠江医院54例接受HSCT且年龄≥55岁髓系肿瘤患者的治疗结局。结果:54例患者中急性髓系白血病(acute myeloid leukemia,AML)患者45例,骨髓增生异常综合征患者9例,中位年龄57.5(55.0~68.0)岁。53例成功造血重建,中性粒细胞植入中位时间为13(8~24)天,血小板植入中位时间为15(9~75)天。急性移植物抗宿主病(graft-versus-host diseas,GVHD)累积发生率23.3%,3年慢性GVHD累积发生率24.6%。中位随访时间28.2个月,3年累积复发率(cumulative relapse rates,CIR)18.0%,3年非复发死亡率28.3%。3年无复发生存(relapse-free survival,RFS)率为58.2%,3年总生存(overall survival,OS)率为56.5%。结论:HSCT是老年髓系肿瘤患者获得长期生存的有效、安全的治疗手段。