Abstract:
BACKGROUND:Cord blood (CB) is a widely accepted stem cell source and its clinical utilization depends, to a great extent, on its cell content. Birth-to-clamping (BTC) time of umbilical cord determines placental transfusion to the newborn, and the remaining blood that can be collected and banked. The 2017 Committee Opinion of the American College of Obstetrics and Gynecologists (ACOG) recommends a delay of "at least 30-60 seconds" before clamping the cord for all newborns to ensure adequate iron stores. The impact of delayed cord clamping (DCC) on public CB banking can be substantial. STUDY DESIGN AND METHODS:Cord blood units (CBUs) collected from 1210 mothers at one hospital were evaluated for total nucleated cells (TNCs) and weight/volume based on time to clamping. Bank staff recorded BTC time in seconds as reported by obstetricians; collections were performed ex utero. Immediate clamping was defined as BTC of less than 30 seconds, whereas DCC was defined as BTC of 30 seconds or more. RESULTS:Cord clamping was immediate in 903 (75%) and delayed in 307 (25%) deliveries. Successful recovery (% clinical CBUs) decreased 10-fold with DCC of more than 60 seconds (22% vs. 2.4%, p < 0.001). CBUs collected after DCC of more than 60 seconds had significantly lower TNC counts than those after DCC of less than 60 seconds (p < 0.0001). Furthermore, 38% to 46% of CBUs after DCC of more than 60 seconds had volume of less than 40 mL. CONCLUSION:Our study indicates that DCC of 30 to 60 seconds has a small negative impact on collection of high-TNC-count CBUs. However, increasing BTC to more than 60 seconds decreases significantly both TNC content and volume, reducing drastically the chances of obtaining clinically useful CBUs.
journal_name
Transfusionjournal_title
Transfusionauthors
Ciubotariu R,Scaradavou A,Ciubotariu I,Tarnawski M,Lloyd S,Albano M,Dobrila L,Rubinstein P,Grunebaum Adoi
10.1111/trf.14574subject
Has Abstractpub_date
2018-06-01 00:00:00pages
1427-1433issue
6eissn
0041-1132issn
1537-2995journal_volume
58pub_type
杂志文章相关文献
TRANSFUSION文献大全abstract:BACKGROUND:To quantify the impact of the US President's Emergency Plan for AIDS Relief (PEPFAR) on the risk of HIV transmission through infected blood donations in countries supported by PEPFAR blood safety programs. METHODS:Data reported to the World Health Organization Global Database on Blood Safety were analyzed f...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/trf.16256
更新日期:2021-01-28 00:00:00
abstract:BACKGROUND:Recent blood shortages and the potential clinical impact of red blood cell (RBC) age highlight the need to understand blood supply delivery. This study addresses the characteristics and mechanics of RBC unit trafficking and storage across the transfusion service, previously undescribed in the literature. ST...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2009.02375.x
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Viral contamination of platelet (PLT) concentrates can result in transfusion-transmitted diseases. A photochemical treatment (PCT) process with amotosalen-HCl and long-wavelength ultraviolet light (UVA), which cross-links nucleic acids, was developed to inactivate viruses and other pathogens in PLT concentra...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.0041-1132.2005.04316.x
更新日期:2005-04-01 00:00:00
abstract::EDTA is added to some commercial A and B cells as a means of preventing hemolysis in serum testing. Unexpected results in serum testing have been reported with EDTA-dependent agglutinins, but not with agglutinins inhibited by EDTA. A serum sample was found to contain an anti-A1 undetected by serum testing, but resulti...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1046/j.1537-2995.1988.28288179026.x
更新日期:1988-03-01 00:00:00
abstract:BACKGROUND:Platelet (PLT) transfusions are essential for patients who are bleeding or have an increased risk of bleeding due to a decreased number or abnormal function of circulating PLTs. A shelf life of 5 days for PLT products presents an inventory management challenge. In 2006, greater than 10% of apheresis PLTs mad...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2010.03039.x
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Hematology analyzers use impedance, optical, and/or immunologic techniques for counting platelets (PLTs). PLT counting in whole blood has been validated thoroughly; however, this is not the case for PLT counting in PLT concentrates (PCs), in which red cells (RBCs) are absent. Therefore, this study is focused...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2007.01337.x
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Mathematical models predict that, in Spain, a significant number of blood units will be obtained during the window period of the hepatitis B virus (HBV) infection. Routine nucleic acid testing (NAT) on individual blood units may provide experimental data to evaluate such a theoretical risk. STUDY DESIGN AND...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2006.00863.x
更新日期:2006-07-01 00:00:00
abstract:BACKGROUND:Filtration of apheresis platelets to remove white cells (WBCs) requires operator intervention after the collection procedure (postcollection filtration), which may cause variable and unsatisfactory filter performance (WBC removal and platelet loss). The MCS+ LN9000 apheresis system filters platelets through ...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1046/j.1537-2995.1999.39199116898.x
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Red blood cell (RBC) alloimmunization occurs at a high frequency in sickle cell anemia (SCA) despite serologic matching for Rh (C/c, E/e) and K antigens. RBC minor antigen genotyping allows for prediction of antigens and RH variants that may lead to alloimmunization. STUDY DESIGN AND METHODS:RBC antigen gen...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/trf.14282
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:Serious complications of blood donation are rare. Reported here is a significant vascular event that resulted from whole-blood phlebotomy and required surgical repair. CASE REPORT:A 49-year-old woman donated whole blood without incident in November 1992, but reported ecchymosis and tenderness in the antecub...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1046/j.1537-2995.1994.34394196625.x
更新日期:1994-03-01 00:00:00
abstract::Fresh human blood was collected in citrate-phosphate-dextrose, frozen by a high-glycerol technique, and stored at -80 degrees C. The red cells were thawed, deglycerolized, and resuspended in a final wash solution, ADSOL (Fenwal Laboratories), or an additive solution (AS) containing glucose, adenine, mannitol, and phos...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1046/j.1537-2995.1987.27688071704.x
更新日期:1987-11-01 00:00:00
abstract:BACKGROUND:The rehydrated, lyophilized (RL) platelet (PLT) is being developed as a hemostatic infusion agent for the control of active bleeding. The key to the method for preparing RL PLTs is a mild aldehyde stabilization that allows for freezing and lyophilizing without cellular rupture. RL PLTs have been shown to be ...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2006.01002.x
更新日期:2006-11-01 00:00:00
abstract::Although the high (40 to 50 per cent) glycerol method of freezing red blood cells has many advantages, no feasible procedure for deglycerolizing with only a clinical centrifuge has been available. Thus this method has been restricted to blood centers that distribute a sufficient number of frozen cells to warrant the i...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1046/j.1537-2995.1977.17578014580.x
更新日期:1977-09-01 00:00:00
abstract:BACKGROUND:Antibodies to Mia , MUT, and Mur are among the most frequently identified alloantibodies in Southeast Asia. Understanding the characteristics of these antibodies in terms of induction and evanescence would aid in optimizing methods for their detection. STUDY DESIGN AND METHODS:Antibody testing results betwe...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/trf.14538
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Intraoperative and postoperative red blood cell (RBC) transfusions are relatively frequent events tracked in the American College of Surgeons' National Surgical Quality Improvement Program-Pediatric (ACS-NSQIP-P). This study sought to quantify variation in RBC transfusion practices among hospitals. STUDY DE...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/trf.13479
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:The experience of unpleasant blood donation reactions (e.g., dizziness, nausea, and fainting) has been linked to negative attitudes about donation and decreased likelihood of repeat donation. Consequently, interventions to reduce the adverse effects of blood donation are important and likely to increase dono...
journal_title:Transfusion
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1537-2995.2008.02057.x
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Proinflammatory cytokines were measured in the supernatant portion of stored, bacterially contaminated, and/or white cell (WBC)-reduced units of red cells (RBCs). Previous studies from this laboratory and others have shown that cytokines are generated in platelet concentrates during storage. This earlier wor...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1046/j.1537-2995.1995.35395184274.x
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:Prosthetic hip-associated cobalt toxicity (PHACT) is an uncommon, but potentially devastating, complication for patients with metal-on-metal hip implants (MoMs). Clinical management of PHACT is poorly defined, with primary intervention being MoM explant followed by chelation therapy. Therapeutic plasma excha...
journal_title:Transfusion
pub_type: 杂志文章,评审
doi:10.1111/trf.13720
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:A highly sensitive dissociation-enhanced lanthanide fluoroimmunoassay (DELFIA) and flow cytometry techniques have previously been developed and employed to characterize soluble cellular prion protein (PrP(c)) expression in whole blood and separated components from healthy adult blood donors. No previous stud...
journal_title:Transfusion
pub_type: 临床试验,杂志文章
doi:10.1111/j.0041-1132.2005.04342.x
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:Human herpesvirus 8 (HHV-8) is a gamma-herpesvirus that causes Kaposi's sarcoma. The prevalence of HHV-8 genomes in US blood donors has not been systemically studied. STUDY DESIGN AND METHODS:A sensitive and quantitative real-time polymerase chain reaction (PCR) assay was used to detect HHV-8 DNA from purif...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2009.02559.x
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND:In February 2007, a 63-year-old man underwent surgery. Retrospective testing with nucleic acid testing (NAT) showed that the patient was human immunodeficiency virus Type 1 (HIV-1) positive 10 days after transfusion. The transfusion-transmitted infection had been identified by a donor-related lookback starte...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2009.02203.x
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:Much effort and resources have been devoted to programs that provide transfusion support for patients with sickle cell disease (SCD). The focus of many donor programs is to prevent alloimmunization by recruiting racially matched African American donors to limit the red blood cell (RBC) antigenic differences ...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/trf.13037
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND:Red blood cell (RBC) alloimmunization is reported to occur at an incidence of 5.2% to 23.5% among patients with thalassemia requiring chronic transfusion. With very limited data on alloimmunization among the Chinese population, a territory-wide study has been performed to look at its prevalence among Chinese...
journal_title:Transfusion
pub_type: 杂志文章,评审
doi:10.1111/j.1537-2995.2012.03570.x
更新日期:2012-10-01 00:00:00
abstract:BACKGROUND:Iron supplements reduce the risk of iron depletion in blood donors. Recent initiatives have sought to increase use of donor iron supplementation (IS), but a baseline description of blood donor supplement practices is needed. STUDY DESIGN AND METHODS:Presenting blood donors received a questionnaire inquiring...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/trf.15407
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Concerns have been raised that aging of the general population will increase the demand for blood products. Modeling can be applied to assess trends in blood demand and supply and predict how these will develop over time. STUDY DESIGN AND METHODS:We developed mathematical models to describe and predict the ...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2010.02716.x
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND:Antibodies specific for the neutrophil antigen HNA-3a cause severe, sometimes fatal transfusion-related acute lung disease (TRALI) when transfused, but it has not been possible to screen blood donors for anti-HNA-3a because using neutrophils as targets was impractical and molecular properties of the antigen ...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2011.03145.x
更新日期:2011-10-01 00:00:00
abstract:BACKGROUND:Screening blood units for hepatitis C virus (HCV) with nucleic acid testing (NAT) reduces the risk associated with the long "window period" (8-9 weeks) after HCV infection. The feasibility of adding the HCV core antigen assay in pools to the existing anti-HCV individual screening was examined as an alternati...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2006.00972.x
更新日期:2006-10-01 00:00:00
abstract:BACKGROUND:Thrombotic thrombocytopenic purpura (TTP) is a severe disorder affecting the microcirculation of multiple organs due to a systemic endothelial cell injury secondary to a deficiency in ADAMTS13 (a disintegrin and metalloprotease with thrombospondin type 1 motif, member 13) activity. TTP is a rare complication...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/trf.13207
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:A 28-year-old woman of Lebanese origin experienced two stillbirths. At the time, serology typed her red blood cells as being group A D- and found an anti-D in her serum sample. Molecular biology analysis, however, showed that she was in fact RHD+. STUDY DESIGN AND METHODS:To better characterize this case, a...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1111/j.1537-2995.2007.01199.x
更新日期:2007-05-01 00:00:00
abstract:BACKGROUND:The use of blood-saving techniques in elective surgery can produce a favorable cost-benefit ratio only when there is a reasonable likelihood that transfusion will be required. To apply a targeted blood-sparing technique in lung cancer surgery, the patient's preoperative characteristics that predict the use o...
journal_title:Transfusion
pub_type: 杂志文章
doi:10.1046/j.1537-2995.2000.40101228.x
更新日期:2000-10-01 00:00:00