Transfusion Medicine and Hemotherapy最新文献

{"title":"A Rare Variant <i>c.1024A>C</i> in the <i>ABO*A1.02</i> Allele Was Associated with an A_el Phenotype.","authors":"Yan Li, Mengyuan Ding, Zhaoze Ma, Liling Zhou, Chenlong Wang","doi":"10.1159/000539130","DOIUrl":"10.1159/000539130","url":null,"abstract":"<p><strong>Introduction: </strong>A_el is known to be one of the weakest A subgroups and can be identified through either the adsorption-elution technique or molecular analysis. Single nucleotide variation in the <i>ABO</i> gene can potentially disrupt the function of ABO glycosyltransferase, resulting in decreased ABO antigen expression.</p><p><strong>Case presentation: </strong>We reported 1 case of the missense SNV <i>c.1024A>C</i> in the <i>ABO*A1.02</i> allele was associated with an A_el phenotype. The proband was a 19-year-old male Chinese Han blood donor who was initially stereotyped as type B. Based on the findings from absorption elution, genotype tests, and a family investigation, both the proband and his mother were classified as the A_elB phenotype. An uncommon allele was detected in both the proband and his mother, differing by a single nucleotide at position 1,024 from A to C (<i>c.1024A>C</i>) when compared to the <i>ABO*A1.02</i> allele. The <i>c.1024A>C</i> SNV induces an amino acid substitution, specifically p.Thr342Pro, which consequently leads to the loss of two sheets (p214-p216, p340-p344) in the wild-type A glycosyltransferase (GTA) 3D structure. The removal of these two sheets, situated at the protein's core, implies the occurrence of an interaction within this domain that affects the stability of the protein structure.</p><p><strong>Conclusion: </strong>A_elB is prone to misidentification as type B, and the accurate determination of blood type can be achieved through the integration of the adsorption-elution technique and molecular analysis.</p>","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"52 3","pages":"216-221"},"PeriodicalIF":1.9,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12140602/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144249716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HLA in Transplantation: Challenges and Perspectives.","authors":"Nils Lachmann, Axel Pruß","doi":"10.1159/000538982","DOIUrl":"10.1159/000538982","url":null,"abstract":"","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"51 3","pages":"129-130"},"PeriodicalIF":2.2,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11166407/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141311822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Persistent Antigen A after Minor ABO-Incompatible Hematopoietic Stem Cell Transplantation in Children: Two Case Reports.","authors":"Biljana Andrić, Zorica Radonjić, Olivera Šerbić, Dragana Vujić, Željko Zečević, Marija Simić, Borko Gobeljić, Snežana Jovanović-Srzentić, Ivana Radović","doi":"10.1159/000536176","DOIUrl":"10.1159/000536176","url":null,"abstract":"<p><strong>Introduction: </strong>ABO blood type changes after ABO-incompatible hematopoietic stem cell transplantation (HSCT). Most non-hematopoietic tissues retain the expression of the patient's own ABO antigens, which may adsorb from the plasma onto the donor's red blood cells (RBCs). Because of this phenomenon, a persistent patient's A and/or B antigen could be detected in the laboratory, despite 100% white cell donor chimerism. Adsorption of the patient's soluble ABO antigens on the newly formed RBCs complicates the interpretation of the patient's blood type and decision of transfusion therapy.</p><p><strong>Case presentation: </strong>The first case report is a 6-year-old girl, A, D+, with T-cell acute lymphoblastic leukemia (ALL), transplanted with HLA-matched unrelated group O, D+ bone marrow. A second case report describes an 8-year-old girl, AB, D-, with ALL transplanted with an HLA-matched related group B, D+ bone marrow. The presence of persistent antigen A was registered in both patients more than 1 year after HSCT, despite complete donor chimerism.</p><p><strong>Conclusion: </strong>The weak expression of ABO antigens on RBCs after HSCT should be examined in detail for proper planning of transfusion therapies.</p>","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"51 6","pages":"439-443"},"PeriodicalIF":1.9,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11630906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142814298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erythrocyte Alloimmunization and Autoimmunization in the Pediatric Population: A Multicenter, Cross-Sectional Study in Central China.","authors":"Yongjun Wang, Yuanqing Yang, Zhengfeng Li, Wei Li, Hongbin Hu, Ding Zhao","doi":"10.1159/000538448","DOIUrl":"10.1159/000538448","url":null,"abstract":"<p><strong>Background: </strong>Erythrocyte alloantibodies and autoantibodies complicate transfusion. However, the prevalence of erythrocyte alloimmunization and autoimmunization has not been estimated in the Chinese pediatric population. Therefore, we investigated the prevalence of erythrocyte alloimmunization and autoimmunization in the Chinese pediatric population with the aim of developing a reasonable transfusion management policy in children from China.</p><p><strong>Methods: </strong>This study included 30,603 pediatric inpatients who were admitted to three tertiary hospitals in central China from May 2020 to October 2022. Antibody screening was carried out with a three-cell panel by column agglutination technology, and samples with positive screening were analyzed for antibody specificity with a 16-cell identification panel. Clinical details of the patients were collected to identify associations with antibody formation.</p><p><strong>Results: </strong>The alloimmunization rate was 0.55% (169/30,603), and the autoimmunization rate was 0.14% (43/30,603). Alloantibodies comprised 80.09% of the antibodies. The most frequent alloantibodies were anti-M (58.77%), anti-E (9.48%), and anti-P1 (4.27%). Autoantibodies comprised 19.91% of antibodies. Age (<i>p</i> = 0.000), sex (<i>p</i> = 0.016), geographical area (<i>p</i> = 0.000), ABO blood group (<i>p</i> = 0.008), and diagnosis (<i>p</i> = 0.000) were independent risk factors for antibody formation. The risk of antibody formation at the ages of 0-28 days and 1-3 months was zero (odds ratio = 0.000). The antibody distribution was significantly different by age (<i>p</i> = 0.000) and diagnosis (<i>p</i> = 0.000).</p><p><strong>Conclusion: </strong>Repeat pre-transfusion testing for infants less than 4 months of age can be omitted for no risk of antibody formation. MNS system antibodies, especially anti-M, are prominent in younger children, and this decreases with age. Provision of extended phenotype-matched transfusion for Rh system antigens, especially antigen E, is necessary in children to control erythrocyte alloimmunization. The presence of antibodies with high evanescence rates in the pediatric population suggests the pressing need for nationwide shared transfusion records to avoid hemolytic transfusion reactions in children.</p>","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"51 6","pages":"402-413"},"PeriodicalIF":1.9,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11630902/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142814297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cell Salvage Using the Autotransfusion Device CATSmart^®: A Randomized Controlled Bicentric Trial Evaluating the Quality of Two New Flex Wash Programs.","authors":"Sven Arends, Michael Thomas, Michael Nosch, Thomas Droll, Denise Zwanziger, Thorsten Brenner, Ali Haddad","doi":"10.1159/000536322","DOIUrl":"10.1159/000536322","url":null,"abstract":"<p><strong>Background: </strong>The use of cell salvage and autologous blood transfusion is an important and widespread method of blood conservation during surgeries with expected high blood loss. The continuous autotransfusion device CATSmart^® (Fresenius Kabi, Germany) contains two new washing programs on the device called Flex wash 3 and Flex wash 5. To the best of our knowledge, there are no published clinical data regarding the performance of the two new washing programs.</p><p><strong>Methods: </strong>In total, 69 patients undergoing cardiac or orthopedic surgery were included in this randomized, controlled, bicentric trial to validate the red cell separation process and washout quality of Flex wash 3 compared to Flex wash 5. After washing, the primary quality target was to determine hematocrit value, recovery rate, albumin, and total protein elimination rate in the packed red cells (PRCs). The secondary objective was to assess the elimination of heparin by measuring the factor anti-Xa activity by a 1- and 2-stage assay in PRC after washing.</p><p><strong>Results: </strong>In the whole cohort of patients, hematocrit was 16.00% [9.15%; 21.30%] (median [Q1; Q3]) in the wound blood and 69.90% [51.10%; 80.90%] in the PRC resulting in a recovery rate of 63.92% [47.06%; 88.13%]. The albumin elimination rate was 98.77% [97.94%; 99.27%], and the total protein elimination rate was 98.85% [97.76%; 99.42%]. The heparin elimination rate was 99.95% [99.90%; 99.97%] in the 1-stage assay and 99.70% [99.41%; 99.87%] in the 2-stage assay. There was no difference between Flex wash 3 and Flex wash 5 washing procedure regarding the recovery rate 63.75% [46.64%; 78.65%] versus 67.89% [47.20%; 92.69%] (<i>p</i> = 0.85), albumin elimination rate 98.74% [97.67%; 99.27%] versus 98.78% [98.10%; 99.28%] (<i>p</i> = 0.97), protein elimination rate 98.79% [97.94%; 99.47%] versus 98.92% [97.58%; 99.42%] (<i>p</i> = 0.88), and anti-Xa elimination rate in the 1-stage assay 99.94% [99.79%; 99.97%] versus 99.95% [99.92%; 99.97%] (<i>p</i> = 0.24) and in 2-stage assay 99.66% [99.20%; 99.86%] versus 99.77% [99.47%; 99.90%] (<i>p</i> = 0.23).</p><p><strong>Conclusions: </strong>The two new washing procedures, Flex wash 3 and Flex wash 5, enable sufficient and comparable red cell separation and washout quality of albumin, total protein, as well as heparin.</p>","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"51 6","pages":"367-372"},"PeriodicalIF":1.9,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11631003/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142814296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum.","authors":"","doi":"10.1159/000534302","DOIUrl":"https://doi.org/10.1159/000534302","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1159/000533624.].</p>","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"51 3","pages":"198"},"PeriodicalIF":1.9,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11208872/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prolonged Thrombocytopenia and Severe Transfusion Reaction after ABO-Incompatible Allogeneic Hematopoietic Stem Cell Transplantation in a Patient with Chronic Myelomonocytic Leukemia","authors":"Lina S. Silva-Bermúdez, D. Heidenreich, Stefan A. Klein, Patrick Wuchter, Harald Klüter, Sabine Kayser","doi":"10.1159/000534272","DOIUrl":"https://doi.org/10.1159/000534272","url":null,"abstract":"Introduction: Major ABO-incompatible allogeneic hematopoietic stem cell transplantation (allo-HCT) is a common practice and represents a challenging transfusion scenario. Prolonged thrombocytopenia with increased platelet transfusion needs is one of its reported adverse effects, and this has been linked to the persistence of recipient anti-donor isoagglutinins. Case Presentation: A 55-year-old male patient, O Rh(D)-positive, with chronic myelomonocytic leukemia underwent major incompatible allo-HCT from a A Rh(D)-negative donor. He presented with prolonged thrombocytopenia and multiple transfusion reactions after A Rh(D)-negative platelet transfusions. Considering the outcomes of numerous examinations, we tested the anti-A1 titers, finding a significant persistence of anti-donor isoagglutinins. We limited platelet transfusions to blood group O Rh(D)-negative donors, which significantly decreased the requirement for platelet transfusions. In addition, the transfusion reactions ceased. Conclusion: In case of transfusion reactions against platelet products in major ABO-incompatible allo-HCT patients, isoagglutinin monitoring should be considered and a change in the platelet transfusion protocol may be beneficial in patients presenting high isotiters against recipient’s blood type.","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"35 33","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139442847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contents Vol. 50, 2023","authors":"MD – Peter Schlenke, PhD – Peter Bugert, MD Beate Mayer, MD Axel Pruß, MD Franz F. Wagner, MD Patrick Wuchter, PhD – Jason Acker, MD Gregor Bein, MD – Reinhard Burger, Robert Koch, PhD Toni Cathomen, PhD Jens Dreier, MD Hermann Eichler, MD – Andreas Humpe, MD Harald Klüter, MD – Jens Meier, MD – Rainer Moog, German Red, PhD – Bristol Andrew D. Mumford, CardioVascular, PhD – Thierry Peyrard, MD – Erwin Strasser, PhD – Pieter F. van der Meer, MD – Mark H. Yazer, E. Strasser, J. Piñeyroa, J. Cid, M. Lozano, P. Schlenke, von Heymann, Berlin Lier, H. Cologne, C. Rosenthal, L. Kaufner, Berlin, P.F.W. Strengers, Amsterdam, J. Cottrell, A. Al Sanani, I. Ogu, D. Chaffin, WV Huntington, D’Alessandro, P. A. Bugert, Research Articles, Meta-Analysis Qin, X. G. Han","doi":"10.1159/000535411","DOIUrl":"https://doi.org/10.1159/000535411","url":null,"abstract":"","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"145 3","pages":"568 - 575"},"PeriodicalIF":2.2,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139012756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Congratulation, Appraisal, and Comment on the 25 Years Anniversary of Serious Hazards of Blood Transfusion","authors":"Thomas Frietsch, Maria B. Rondinelli, Jerrold H. Levy","doi":"10.1159/000532049","DOIUrl":"https://doi.org/10.1159/000532049","url":null,"abstract":"","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139233540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In vitro Hemostatic Functions of Cold-Stored Platelets","authors":"J. Kirschall, G. Uzun, T. Bakchoul, I. Marini","doi":"10.1159/000533735","DOIUrl":"https://doi.org/10.1159/000533735","url":null,"abstract":"Background: Transfusion of platelets is a life-saving medical strategy used worldwide to treat patients with thrombocytopenia as well as platelet function disorders. Summary: Until the end of 1960s, platelets were stored in the cold because of their superior hemostatic functionality. Cold storage of platelets was then abandoned due to better posttransfusion recovery and survival of room temperature (RT)-stored platelets, demonstrated by radioactive labeling studies. Based on these findings, RT became the standard condition to store platelets for clinical applications. Evidence shows that RT storage increases the risk of septic transfusion reactions associated with bacterial contamination. Therefore, the storage time is currently limited to 4–7 days, according to the national guidelines, causing a constant challenge to cover the clinical request. Despite the enormous efforts made to optimize storage conditions of platelets, the quality and efficacy of platelets still decrease during the short storage time at RT. In this context, during the last years, cold storage has seen a renaissance due to the better hemostatic functionality, reduced risk of bacterial contamination, and potentially longer storage time. Key Messages: In this review, we will focus on the impact of cold storage on the in vitro platelet functions as promising alternative storage temperature for future medical applications.","PeriodicalId":23252,"journal":{"name":"Transfusion Medicine and Hemotherapy","volume":"131 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139267885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}