广州地区56~60岁机采血小板献血人群外周血象水平波动情况分析

目的研究分析56~60岁的机采血小板献血者在56岁前后献血前的外周血象变化,为我国安全实施推广高龄献血者的招募保留提供数据支持和参考。方法回顾性分析广州血液中心2017~2019年56~60岁的单采血小板献血者,自其首次捐献单采血小板共计6769人次的献血次数,按性别和年龄分组进行单因素方差分析各外周血象水平波动情况,有统计学差异则采用图基法进一步两两比较。结果男性56岁前后和女性56岁前后各组外周血象水平,P<0.05。其中,女性56岁后与56岁前的Plt分别为(274.33±49.47)×109/L及(296.61±44.89)×109/L、RBC分别为(4.48±0.35)×1012/L及(4.4±0.3)×1012/L、Hb分别为(125.87±9.08)g/L及(128.33±8.79)g/L相比较,P<0.05,而其WBC分别为(6.29±1.36)×109/L及(6.26±1.46)×109/L、Hct分别为0.39±0.05及0.39±0.02相比较,P>0.05。男性56岁后与56岁前的Plt分别为283.94±59.63)×109/L及(283.5±62.7)×109/L比较,P>0.05,而其RBC分别为(4.94±0.39)×1012/L及(4.91±0.35)×1012/L、Hb分别为(137.15±12.83)g/L及(141.29±10.67)g/L、WBC分别为(5.77±1.23)×109 /L及(6.03±1.26)×109/L、Hct分别为0.42±0.03及0.42±0.03相比较,P<0.05。56岁后男性Plt与女性相比,P>0.05。56岁前后男性的RBC、Hb、Hct均高于女性(P<0.05)。单采血小板献血者在56岁后献血前外周血象指标不合格率升高,P<0.05。结论 56~60岁的单采血小板献血者其血前外周血象水平在56岁前后有所波动,但仍在正常范围内,因此现行政策下献血总体是安全的。但该人群生理调节功能有所下降,因此其献血前外周血常规需加强监测,以保障血液质量及高龄单采血小板献血者的身体健康。     

献血者单采血小板后外周血小板数恢复的研究

目的研究探讨单采血小板后献血者外周血小板数的变化和恢复的情况。方法对100名献血者在单采血小板前、单采后0、24、48、72、96 h分别进行外周血小板计数,并进行统计分析。结果 100名例献血者单采血小板1、2 U后,有71例外周血小板数下降,有29例血小板数无明显下降,其中有18例血小板数还上升。29例(未明显下降组)单采1、2 U血小板前、单采后0、24、48、72、96 h各组之间均无统计学意义;71例单采后0、24 h分别与其他各组之间比较均有统计学意义,且单采后0 h与单采后的24 h两组相比有统计学意义。单采量为2 U结果单采后0 h组与其他各组相比均有统计学意义。单采后24、48 h与其他各组相比有统计学意义。,而单采后24 h与单采后48 h之间相比无统计学意义(P>0.05),单采前与单采后72 h、单采后96 h之间相比无统计学意义(P=0.796)。结论单采血小板后有部分献血者的外周血小板数下降不明显,有的反而会上升。大部分献血者在捐献血小板后外周血小板数会下降,单采后外周血小板数就逐步开始恢复,故适量捐献血小板会很快得到恢复,对身体并没有明显不利的影响。     

捐献单采献血者外周血小板恢复的影响因素分析

目的探讨单采血小板献血者外周血小板恢复的影响因素。方法随机测定110例献血者捐献血小板单采前、单采后不同时间点的外周血小板计数,并根据年龄、性别、体质指数(BMI)、采集仪器、采集量、献血次数等进行分组统计分析。结果不同性别、年龄、BMI、采集仪器、采集量组,采后不同时间(0 h、1 d、2 d、3 d、4 d、6 d)PLT计数均较采前差异有统计学意义(P0.05),采后7 d PLT较采前差异无统计学意义(P0.05);首次单采组采后0 h、1 d、2d、3 d、4 d较采前PLT计数差异有统计学意义(P0.05),采后6 d、7 d PLT较采前差异无统计学意义(P0.05)。结论单采后血小板的恢复不受年龄、性别、体质指数、采集仪器、采集量的影响,首次单采献血者恢复较多次单采献血者快。     

MCS+血细胞分离机单采血小板冲红献血者自身原因分析及应对措施

目的探讨MCS+血细胞分离机单采血小板采集过程中"冲红"的原因及应对措施。方法选取2012年1月-2013年12月单采血小板过程中有冲红(有肉眼可见的红细胞)现象的27例作为实验组,另选取同期在本站正常单采血小板的献血者70例作为对照组,分别对2组献血者标本进行全血常规及血红蛋白项目检测。结果冲红组中献血者的Hb、Hct、MCV、MCH、MCHC均低于正常对照组,差异有统计学意义(P0.05),而2组献血者RBC计数比较无统计学意义(P0.05)。结论单采血小板冲红现象与外周血的Hb、Hct、MCV、MCH、MCHC降低有关,与献血者多次采血及混合献血造成红细胞未完全成熟有关。     

反复单采血小板献血者血小板计数、血小板生成素、血小板衍生生长因子浓度分析

目的通过频繁单采血小板献血者的血小板数(Plt)、血小板生成素(TPO)及血小板衍生生长因子(PDGF)等因子的变化,探讨频采对献血者巨核细胞的影响。方法随机选取30名连续单采血小板时间1年(2014年1月-2015年5月),每次间隔15-30 d的献血者作为观察组,30名首次单采血小板的献血者作为对照组。献血前后检测其血常规及TPO、PDGF浓度。结果 1)观察组单采血小板前Plt较对照组明显增多,平均血小板体积(MPV)减小,血小板体积分布宽度(PDW)增大,TPO和PDGF浓度低于对照组:Plt(272.97±42.84)×109/L vs(248.70±31.94)×109/L(P0.05),MPV(9.91±0.46)f L vs(10.31±0.72)f L(P0.05),PDW(11.53±0.88)f L vs(10.95±0.77)f L(P0.01),TPO(66.39±23.26)pg/m L vs(80.42±23.95)pg/m L(P0.05),PDGF(89.78±16.22)pg/m L vs(99.80±21.41)pg/m L(P0.05);2)观察组与对照组单采血小板后TPO均较采集前下降:观察组(66.39±23.26)pg/m L vs(57.80±21.11)pg/m L(P0.01),对照组(80.42±23.95)pg/m L vs(87.92±18.18)pg/m L(P0.01);3)观察组与对照组采集血小板后PDGF均较采集前下降:观察组(89.78±16.22)pg/m L vs(80.94±14.15)pg/m L(P0.01),对照组(99.80±21.41)pg/m L vs(87.92±18.18)pg/m L(P0.01)。结论频采对献血者巨核细胞的刺激增强,使其血小板数更高,消耗更多的TPO及PDGF,因此对频采献血者应关注相关因子的变化,以避免对献血者的健康造成损害。     

反复单采血小板对献血者外周血象的影响

<正>随着机器单采血小板在临床上的广泛应用,单采血小板以浓度高、纯度好的特性,受到临床的普遍欢迎,但其影响因素较多,主要包括献血者的自身因素献血者采前血小板(PLT)、采前外周血红蛋白浓度(Hb)、红细胞平均体积(MCV)平均血红蛋白含量(MCH)、平均血红蛋白浓度(MCHC)、血小     

单采血小板后男性献血者外周血中血小板数量变化分析

目的 研究分析单采血小板后献血者外周血中血小板数量的变化情况,以保障献血者安全。方法 选择50名男性单采血小板献血者,按血小板采集前、血小板采集后1 h、24 h、48 h及72 h采集献血者血液标本,进行血小板数量相关项目检测。结果 献血者单采血小板前后各检测时间点的血小板计数值间均存在显著差异(P0.001),并随时间发生变化,且捐献不同量单采血小板的献血者血小板计数恢复至采前水平所需的时间不同。不同采集量对献血者单采血小板后血小板分布宽度值(P=0.007)、平均血小板体积(P=0.015)及大血小板比率(P=0.017)的变化影响结果表明均有显著差异(P均0.05)。不同机型、体重和年龄对献血者单采血小板前后血小板计数的差值无显著差异(P均0.05)。结论 献血者在捐献单采血小板后,机体对外周血中的血小板计数进行调节,使其外周血中的血小板计数及功能仍能维持在正常范围,并逐渐恢复至单采血小板采集前水平。     

血栓弹力图在单采血小板出凝血功能监测中的应用研究

目的运用血栓弹力图仪(TEG)对单采献血者血小板采集前后的出凝血功能进行系统性评价。方法选取2015年12月-2016年11月期间的150名单采献血者,采用TEG对血小板单采前后的出凝血情况进行监测,并根据血小板采集量(1.0 U、1.5 U、2.0 U)、抗凝剂使用量(300 mL、300-400 mL、400 mL)进行分组。比对3组献血者血小板采集前后TEG各项参数的变化,评估献血者单采过程中凝血功能的变化及相关影响因素。结果献血者血小板采集前后R时间分别为(7.04±1.49)min和(7.40±1.35)min,K时间分别为(2.19±0.48)min和(2.36±0.49)min,Angle分别为(60.79±5.14)°和(58.84±5.44)°,MA分别为(61.52±3.82)mm和(58.67±3.52)mm,CI分别为-1.02±1.72和-1.78±1.57,采集前后R、K、Angle、MA、CI均在正常范围,各指标采集前后比较均有统计学意义(P0.001);3组不同采集量和不同抗凝剂使用量的献血者采集前后TEG指标比较均有统计学意义(P0.05)。结论TEG监测可以动态、全面地监测单采血小板过程中献血者出凝血功能的变化,献血者单采前后TEG指标有波动,但仍在机体正常的范围内,血小板单采对献血者凝血功能影响在安全可控范围内。     

无偿献血者外周红细胞指标对单采血小板质量的影响

目的：探讨无偿献血者外周红细胞指标对单采血小板质量的影响,并探讨筛选献血者的适宜标准。方法：收集194名无偿献血者的献血前外周红细胞指标（包括红细胞平均体积、平均血红蛋白含量、平均血红蛋白浓度）与单采血小板收集量进行单因素相关分析,并对献血者采集前后的相应指标作配对比较。结果：无偿献血者的采血前外周红细胞平均体积、平均血红蛋白含量、平均血红蛋白浓度均与单采血小板收集量呈负相关关系,且有统计学意义。结论：外周红细胞指标是筛选单采血小板无偿献血者的重要指标。     

初筛血常规检测时间对单采血小板采集的影响

目的探讨初筛血常规检测时间对单采血小板采集的影响。方法收集单采血小板献血者初筛血样44(人)份,分别在采样后5、10、30 min时运用血细胞分析仪进行血常规检测,并对各组Hb、Hct、Plt和MPV数据做统计分析。结果采集献血者初筛血样后5、10及30 min分别检测:Hb(g/L)分别为149.98±12.98 vs 149.73±13.18 vs 147.93±13.67,Hct(%)分别为46.07±3.91 vs 46.00±3.94 vs 45.52±4.18,Plt(×109/L)分别为189.43±43.09 vs 192.84±44.03 vs 196.73±45.82和MPV(f L)分别为7.94±0.74 vs 8.13±0.89 vs 8.36±0.73(P0.05)。结论单采血小板献血者初筛血样采集后5-30 min,Hb、Hct、Plt和MPV检测结果均无明显变化,但Plt呈现检测时间延后而有所增长;为降低献血者流失提高献血体验,建议初筛血样采集后放置10 min检测为宜。     

多次捐献机采血小板后献血者外周血象的变化

目的研究多次捐献机采血小板后献血者外周血象的变化情况。方法选择20名自愿捐献机采血小板达10~38次的献血者(每次间隔期为1~2个月),在首次和末次采集血小板前分别进行外周血象的检测,进行统计分析。结果多次捐献机采血小板的献血者,末次采集前外周血小板数(PLT)与首次采集前PLT、正常值均数相比,差异均无统计学意义(P>0.05),外周血中的红细胞数(RBC)、白细胞数(WBC)、血红蛋白浓度(Hb)并未发生明显的变化,但血小板分布宽度(PDW)增加,血小板平均体积(MPV)、大形血小板比例(P-LCR)下降,且差异有统计学意义(P<0.01)。结论献血可以促进骨髓的造血功能,对机体并无明显不利的影响。     

Analysis of factors associated with successful allogeneic peripheral blood stem cell collection in healthy donors

BackgroundThe collection of a sufficient number of stem cells is important for success of allogeneic hematopoietic stem cell transplantation (HSCT). This study aimed to investigate the factors associated with successful allogeneic peripheral stem cell (PBSC) collection in healthy donors.MethodsWe retrospectively reviewed clinical data of allogeneic PBSC collection in 175 donors from 2007 to 2017 at the National Cancer Center, Korea. This study analyzed factors associated with the CD34+ cell yield such as the characteristics of donors, including age, laboratory results before apheresis, and data of procedures on the first day. The CD34+ cell dose of ≥ 4.0 × 10⁶/kg have recently been the accepted minimum recommended dose in allogeneic HSCT settings, and this was the target dose in our study.ResultsThe factors associated with the CD34+ cell yield were age (p = 0.007), baseline platelet (PLT) (p = 0.014), and pre-collection hematopoietic progenitor cells (HPCs) (p = 0.001) by multivariate analysis. This study represented that age, baseline platelet count, and pre-collection HPC count are important predictive factors as shown in other previous studies.ConclusionOur data suggest that young age, high baseline platelet counts and high HPC counts before collection might be useful for identifying successful mobilizers.     

首次单采血小板献血者献血反应影响因素的Logistic回归分析

目的分析首次单采血小板献血者发生献血反应的相关因素,为制定单采血小板献血反应的预防措施提供依据。方法对该站743例首次单采血小板捐献资料进行回顾性分析,对可能影响首次单采献血者发生献血反应的相关因素进行单因素Logistic分析,然后对有统计学意义的观察指标做多因素Logistic回归分析。结果单因素Logistic回归分析显示,性别、年龄、体质量、全血捐献史是首次单采血小板献血者献血反应的影响因素,多因素Logistic回归分析表明,年龄(OR=0.301,P0.05)、体质量(OR=0.411,P0.05)及全血捐献史(OR=0.441,P0.05)是影响首次单采血小板献血者献血反应的主要因素。结论年龄、体质量及全血捐献史可能是首次单采血小板献血者献血反应的主要影响因素。     

Cobe Spectra与Fenwal CS 3000 Plus血细胞分离器外周血造血干/祖细胞的采集效能比较

为了评价Cobe Spectra(Version6.1)和Fenwal CS 3000 Plus两种血细胞分离机在造血干／祖细胞采集中的采集效能，对36人64次外周血造血干／祖细胞的采集进行了回顾性分析．20人42次使用Cobe Spectra采集，16人22次使用Fenwal CS 3000 Plus采集对CD34^ 细胞采集量、采集效率以及红细胞与血小板的采集量进行比较，结果表明：Cobe Spectra和Fenwal CS 3000 Plus在CD34^ 细胞采集量和采集效率上无显著差异?CD34^ 细胞采集量与供者白细胞、单核细胞、造血祖细胞、CD34^ 细胞的动员情况呈正相关，在多因素stepwise线性回归模型中，采集前外周血干／祖细胞浓度是唯一有意义的影响因素，Fenwal CS 3000 Plus的采集效率与外周血单核细胞量呈负相关。Fenwal CS 3000 Plus对红细胞的收集量显著高于Cobe Spectra，并且采集后供者外周血血小板降低程度较Cobe Spectra更严重。结论：Cobe Spectra(Version 6．1)和Fenwal CS 3000 Plus在CD34^ 细胞的采集能力上无显著差别。当外周血单核细胞数量高，或是血型不合移植的及血小板减少的供者，推荐使用Cobe Spectra血细胞分离机.     

两种血细胞分离机干/祖细胞采集和移植效果的比较

背景：外周血造血干/祖细胞通过血细胞分离机进行体外收集,血细胞分离机的性能、工作状况将直接关系到采集物的特性和数量,从而直接影响受者的造血重建。目的：比较Fenwal CS-3000Plus与Amicus两种血细胞分离机采集外周血造血干/祖细胞及受者移植效果。方法：共入选接受异基因外周血干细胞移植患者51例,Fenwal CS-3000Plus组27例,平均年龄（34.2±10.6）岁;Amicus组24例,平均年龄（35.4±12.1）岁。比较两组采集物有核细胞数、CD34＋细胞数、采集效率、红细胞与血小板采集量及造血重建时间。结果与结论：两组采集物的有核细胞数、CD34＋细胞数、采集效率、红细胞采集量及造血重建时间差异均无显著性意义;Fenwal CS-3000Plus组血小板采集量明显高于Amicus组（P〈0.01）。结果显示Fenwal CS-3000Plus与Amicus血细胞分离机在分离外周血干/祖细胞方面和移植效果没有差异;血小板较低被采集者使用Amicus血细胞分离机采集可能更为安全。     

非霍奇金淋巴瘤患者行外周血单个核细胞采集前后血细胞的变化及影响因素分析

目的 探索拟行CAR-T治疗的非霍奇金淋巴瘤患者以及健康供者使用血细胞分离机采集单个核细胞后血细胞的变化,探讨影响终产品单个核细胞数量的因素以更好的提高采集效率.方法 使用COM.TEC血细胞分离机采集23例非霍奇金淋巴瘤患者以及22例健康供者的单个核细胞,分别于采集前,采集后即刻抽取血样,检测红细胞(RBC)、白细胞...     

AutoPBSC程序与MNC程序采集外周血造血干细胞的比较研究

目的比较COBE Spectra血细胞分离系统的自动采集程序(AutoPBSC程序)与4.7版半自动采集程序(MNC程序)采集健康供者外周血造血干细胞的差异及对供者血常规相关指标的影响。方法 2002年3月~2008年3月期间对53例健康供者随机采用Auto PBSC程序和MNC程序进行了113例次造血干细胞采集,其中采用AutoPBSC程序63例次,MNC程序50例次。分析比较2种程序采得外周血造血干细胞(PBSC)的采集体积、单个核细胞百分数及总数、CD34+细胞百分数及总数等指标,采集前后供者红细胞、血小板变化。结果 2种程序采集外周血造血干细胞的体积、单个核细胞百分数、CD34+细胞百分数、CD34+细胞总数、采集袋中血小板及红细胞混入量、采集前后供者血小板计数的变化存在显著性差异(P<0.01);2种程序采集的单个核细胞总数无显著性差异;血小板计数在应用MNC程序组呈下降趋势,较AutoPBSC程序更加明显(P<0.01);1例地中海贫血供者应用Auto PBSC程序采集失败。结论 2种程序均可有效采集外周血造血干细胞,与MNC程序比较AutoPBSC程序具有以下优势:单个核细胞和CD34+细胞百分数提高、采集物体积减少有利于采集物的冻存、采集物中血小板数少对供者血小板影响小。地中海贫血供者需慎用Auto PBSC程序。     

Implementation of a strategy to prevent TRALI in a regional blood centre

Transfusion-related acute lung injury (TRALI) can be a life-threatening complication of transfusion and it is probably underdiagnosed. Human leucocyte antigen (HLA) and granulocyte antibodies are thought to play a major role, but preventive measures are difficult to implement. In our regional blood centre, we implemented a preventive strategy avoiding donor deferral. Previously, pregnant apheresis donors were screened for HLA antibodies, and those with positive results were assigned to a plasma-only protocol. Plasma from these donors and from all previously pregnant whole blood donors was diverted for protein fractionation. Plasma-poor red blood cells (in additive solution, buffy coat removed) and platelets (pools with additive solution) were prepared. Prestorage leucodepletion was also applied. We found HLA antibodies in 18.1% of previously pregnant apheresis donors, and our strategy caused a 6.0% loss of apheresis platelets, a 4.8% increase of apheresis fresh frozen plasma (FFP) and a 7.8% loss of transfusable apheresis FFP. The effect on FFP from whole blood donors could be compensated. The platelet preparation method reduced the mean volume of plasma from each donor to 24.4 mL. Fifteen months after the start of our strategy, no cases of TRALI have been reported. Our experience shows that a practical strategy to prevent TRALI is feasible.     

Collection of peripheral blood progenitor cells with an automated leukapheresis system

BACKGROUND: Apheresis devices designed for the collection of mature blood elements are being used for the collection of peripheral blood progenitor cells (PBPCs).The collection of PBPCs differs from that of other cells in the rarity of the target cell and in the fact that donors may undergo several days of collection. A consequence of this process may be a depletion of blood cells such as platelets from the blood. The disposable set and operating software for an apheresis device (Spectra, COBE BCT) was modified by the manufacturer to automate the collection of PBPCs and reduce the collection of unwanted blood cells. STUDY DESIGN AND METHODS: A study was initiated to compare the collection of PBPCs with the new device, the AutoPBSC (version [V]6.0 with AutoPBSC tubing set), and that with the MNC (mononuclear cell) procedure (V4.7 with white cell tubing set), for patients and healthy donors. RESULTS: Patients whose blood was processed by either theV6.0 orV4.7 procedure achieved the target dose of 5 x 10(6) CD34+ cells per kg of patient weight in similar numbers of procedures, even though the calculated collection efficiency for CD34+ cells using the automated V6.0 procedure was significantly less than that with the V4.7 procedure for both allogeneic donors and patients donating PBPCs. The collection efficiency for platelets was lower with the V6.0 procedure, and components collected in this manner contained fewer platelets. Apheresis by the V6.0 procedure required 30 to 60 more minutes per procedure than apheresis by the V4.7 procedure. Review of engraftment kinetics after transplantation did not reveal any effect of the collection procedure on recipients of either allogeneic or autologous transplants. CONCLUSION: The collection efficiencies of the V6.0 procedure for both CD34+ cells and mature blood cells are lower than those of the V4.7 procedure.The lower collection efficiency for platelets results in a smaller drop in peripheral blood platelet count after the procedure.The automated features of the V6.0 procedure may simplify PBPC collection, but this procedure requires a longer apheresis.     

Technical and safety aspects of blood and marrow transplantation using G-CSF mobilized family donors

An allogeneic transplantation programme using immunoselected blood progenitor and bone marrow CD34+ cells has been established. Thirteen healthy HLA-matched, MLC negative sibling donors received two doses of 5 micrograms kg-1 G-CSF (s.c. daily) for 5 days. On days 4 and 5, large-volume mononuclear cell aphereses were performed (COBE Spectra) and on day 5 one unit of autologous blood was obtained. Mononuclear cells were pooled and cryopreserved after CD34+ cell-immunoselection on day 5. Bone marrow (BM) of the same donors was procured under routine conditions 10-45 days later (median: 27 days). The final graft consisted of blood CD34+ cells with either complete BM (n = 5) or immunoselected BM CD34+ cells (n = 8). The present paper describes the progenitor cell mobilization and apheresis protocol and analyzes the cell loss by BM and peripheral blood progenitor cell (PBPC) donation. Considerably larger amounts of mononuclear cells (CD45+), T-lymphocytes (CD3+) and platelets were lost by the apheresis as compared to bone marrow without apparent immediate clinical consequences for the donors. Owing to cross-cellular contamination of the apheresis concentrate, blood platelet count (PC) significantly decreased (mean PC after the second apheresis 116 x 10 microL-1); furthermore on average 3.04 x 10(10) CD3+ cells were removed by two apheresis sessions. This loss did not lead to long-term total lymphocyte count changes (2370 microL-1 versus 1889 microL-1) as observed during the long-term follow-up of 7/13 donors (mean 290 days). Subjectively, the PBPC collections were better accepted than BM donations in all but one family donor.