Blood TransfusionPub Date : 2024-09-01Epub Date: 2024-02-21DOI: 10.2450/BloodTransfus.730
Mario Cruciani, Francesca Masiello, Ilaria Pati, Simonetta Pupella, Vincenzo De Angelis
{"title":"Platelet rich plasma for facial rejuvenation: an overview of systematic reviews.","authors":"Mario Cruciani, Francesca Masiello, Ilaria Pati, Simonetta Pupella, Vincenzo De Angelis","doi":"10.2450/BloodTransfus.730","DOIUrl":"10.2450/BloodTransfus.730","url":null,"abstract":"<p><strong>Background: </strong>Platelet-rich plasma (PRP) as a non-surgical therapy for facial rejuvenation is increasingly adopted. This article aims to review the literature and critically appraise the available evidence regarding the efficacy and safety of PRP for facial rejuvenation.</p><p><strong>Material and methods: </strong>An overview of systematic reviews (SRs) of PRP use for facial rejuvenation. The methodological quality of the SRs was assessed using the AMSTAR-2 checklist; quality of the evidence from the trials included in each SR was appraised following the GRADE approach.</p><p><strong>Results: </strong>Thirteen SRs published between 2015 and 2023, reporting data from 114 overlapping reports, based on 28 individual primary studies (18 uncontrolled reports), were included in this umbrella review. Eight primary studies evaluated PRP in combination with other treatments (laser therapy, fat grafting, hyaluronic acid, basic fibroblast growth factor), and 20 PRP monotherapy. Most of the included primary studies were uncontrolled, and meta-analysis for outcomes related to facial rejuvenation was conducted in only 1 of the 13 SRs, showing that patients treated with PRP as an adjunct treatment have increased satisfaction over controls without PRP (mean difference, 0.63; 95% confidence intervals (CIs) 0.25/1; p=0-001; low certainty of evidence due to risk of bias (ROB) and inconsistency). No other quantitative data were available from the SRs, although 4 SRs concluded in a descriptive way reveal that PRP combined with laser therapy increased subject satisfaction and skin elasticity, and decreased the erythema index (very low certainty of evidence due to imprecision, unsystematic clinical observations, and ROB). The occurrence of adverse events was a predefined outcome in only 2 SRs (15%). Almost all the SRs demonstrated poor compliance with the AMSTAR 2 items, and the confidence in the results of SRs was graded as low or critically low in 12 of the 13 SRs.</p><p><strong>Discussion: </strong>The available evidence is insufficient to suggest firm conclusions about the use of PRP, alone or in combination with other treatments, in promoting facial rejuvenation.</p>","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":"429-440"},"PeriodicalIF":2.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390617/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140337451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blood TransfusionPub Date : 2024-09-01Epub Date: 2024-05-23DOI: 10.2450/BloodTransfus.807
Luca Collodel, Tommaso Mancuso, Gianluca Gessoni
{"title":"Description of the first case of c.137-8C>T GYPB mutation not associated to the GYPB(P2) allele.","authors":"Luca Collodel, Tommaso Mancuso, Gianluca Gessoni","doi":"10.2450/BloodTransfus.807","DOIUrl":"10.2450/BloodTransfus.807","url":null,"abstract":"","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":"459-460"},"PeriodicalIF":2.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390614/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141181453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blood TransfusionPub Date : 2024-09-01Epub Date: 2024-01-11DOI: 10.2450/BloodTransfus.571
Rocco Cantisani, Valeria Del Re, Francesca Toraldo, Silvia Cantara, Simone Pozzessere, Giuseppe Marotta, Adriano Spreafico
{"title":"HLA class I expression on human platelets is highly variable and correlates with distinct allele group frequencies.","authors":"Rocco Cantisani, Valeria Del Re, Francesca Toraldo, Silvia Cantara, Simone Pozzessere, Giuseppe Marotta, Adriano Spreafico","doi":"10.2450/BloodTransfus.571","DOIUrl":"10.2450/BloodTransfus.571","url":null,"abstract":"<p><strong>Background: </strong>Human leukocyte antigen (HLA) class I molecules are expressed on platelets and can represent a source of alloimmunization in recipients of platelet transfusions. HLA mismatch between donors and recipients may be associated with the induction of anti-HLA antibodies, which can culminate in refractoriness to platelet transfusions. In the present study we analyzed HLA allele group frequencies and HLA expression levels on human platelets from blood donors.</p><p><strong>Materials and methods: </strong>Platelet-rich plasma was collected from 139 donors to monitor platelet HLA class I expression by flow cytometry. DNA from donors with high and low platelet HLA expression was used in the genotype studies. Frequencies of large and normal-sized platelet subpopulations were determined and HLA class I expression was studied. Mean platelet volume (MPV) and platelet large-cell ratio (P-LCR) were analyzed in both groups of donors.</p><p><strong>Results: </strong>The analysis showed variable platelet HLA class I expression with significant differences among donors. HLA class I allele group frequencies in donors with high and low platelet HLA expression showed distinctive genotypic features strictly related to expression level. The main allele groups found in samples with high platelet HLA class I expression were HLA-A*02, -A*68, -B*15, -B*49, and -C*03. Platelet HLA class I expression did not change over time or during freezing-thawing cycles. The analysis of platelet subpopulations showed a statistically significant higher expression of HLA class I molecules on large platelets than on normal-sized platelets. Moreover, donors with high HLA class I expression showed a higher frequency of large platelets (p<0.0001). The analysis of P-LCR in both groups of donors showed a statistically significant difference (p<0.05) within high HLA-expressing donors.</p><p><strong>Discussion: </strong>Our data suggest an allele-dependent expression of HLA class I molecules on human platelets with distinct HLA allele group frequencies and different platelet subpopulation frequencies among blood donors.</p>","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":"440-449"},"PeriodicalIF":2.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390610/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139693363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blood TransfusionPub Date : 2024-09-01Epub Date: 2024-07-19DOI: 10.2450/BloodTransfus.722
Alexandre Soares Ferreira Junior, Morgana Pinheiro Maux Lessa, Kate Sanborn, Alexander Gordee, Maragatha Kuchibhatla, Matthew S Karafin, Oluwatoyosi A Onwuemene
{"title":"Bleeding recurrence risk among hospitalized patients undergoing therapeutic plasma exchange: a multi-center study.","authors":"Alexandre Soares Ferreira Junior, Morgana Pinheiro Maux Lessa, Kate Sanborn, Alexander Gordee, Maragatha Kuchibhatla, Matthew S Karafin, Oluwatoyosi A Onwuemene","doi":"10.2450/BloodTransfus.722","DOIUrl":"10.2450/BloodTransfus.722","url":null,"abstract":"<p><strong>Background: </strong>In hospitalized patients undergoing therapeutic plasma exchange (TPE), it is not known how TPE-associated bleeding risk is impacted by a prior bleeding episode. Therefore, to assess the prevalence and predictors of bleeding recurrence, we analyzed data from the Recipient Epidemiology and Donor Evaluation Study-III (REDS-III).</p><p><strong>Materials and methods: </strong>Using a retrospective cross-sectional analysis of REDS-III public use files, we identified hospitalized adults who had a major bleeding episode prior to their first TPE procedure. Patients were classified into two cohorts based on bleeding recurrence (no-recurrence vs recurrence). After identifying potential predictors, we used multiple imputation by chained equations to impute variables with <30% missing data. Variable selection was optimized using a 10-fold cross validated least absolute shrinkage and selection operator. Final predictors were identified by fitting a logistic regression model.</p><p><strong>Results: </strong>In 310 patients with major bleeding prior to TPE initiation, bleeding recurred in 121 (39.0%). We identified the following seven unique predictors: 1) >10 TPE procedures (OR 2.23); 2) intensive care unit stay (OR 1.35); 3) thrombocytopenia (OR 1.26); 4) surgery (OR 1.22); 5) hepatic disease (OR 1.21); 6) 6-10 TPE procedures (OR 1.04); and 7) Asian race (OR 1.01). We also identified the following five interactions: 1) surgery and therapeutic anticoagulation (OR 1.50); 2) 6-10 TPE procedures and therapeutic anticoagulation (OR 1.05); 3) 6-10 TPE procedures and antiplatelets (OR 1.02); 4) >10 TPE procedures and antiplatelets (OR 1.00); and 5) albumin-only TPE and antiplatelets (OR 0.53). When assessed for adjusted performance, the prediction model had a C-statistic of 0.617 (95% CI 0.613-0.619) and Brier Score of 0.342 (95% CI 0.340-0.347).</p><p><strong>Discussion: </strong>In this study assessing predictors of bleeding recurrence among hospitalized patients undergoing TPE, we identified seven variables and five interactions. These findings should be validated in future studies.</p>","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":"420-428"},"PeriodicalIF":2.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390607/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blood TransfusionPub Date : 2024-09-01Epub Date: 2024-04-23DOI: 10.2450/BloodTransfus.741
Cecilia Pardi, Åsa Hellberg, Pauline Isakson
{"title":"Single-exon fetal RHD genotyping: a 31-month follow up in the obstetric population of Western Sweden.","authors":"Cecilia Pardi, Åsa Hellberg, Pauline Isakson","doi":"10.2450/BloodTransfus.741","DOIUrl":"10.2450/BloodTransfus.741","url":null,"abstract":"<p><strong>Background: </strong>The Rh blood group system is highly complex, polymorphic, and immunogenic. The presence of RHD gene variants in RhD negative pregnant women is a challenge in fetal RHD genotyping as it may influence the antenatal management of anti-D prophylaxis. The aim of this study was to determine the efficiency of a non-invasive single-exon approach in the obstetric population of Western Sweden in a 31-month follow up. The frequency and type of maternal RHD variants were explored and the relation to the ethnicity was elucidated. Discrepant results between fetal RHD genotyping and serological blood group typing of newborns were investigated and clarified.</p><p><strong>Materials and methods: </strong>RHD exon 4 was analysed with quantitative real-time PCR technique in a total of 6,948 blood samples from RhD negative women in early pregnancy. All cases with suspected maternal RHD gene and discrepant results observed in newborn samples, were further investigated using both serological and molecular technologies.</p><p><strong>Results: </strong>A total of 43 samples (0.6%) had inconclusive fetal genotyping result due the presence of a maternal RHD gene. These findings were in most cases (>66%) observed in pregnant women of non-European ancestry. Additionally, two novel RHD alleles were found. Seven discrepant results between fetal RHD genotype and serological RhD type of the newborns, were shown to be related to D antigen variants in newborns. Assay sensitivity was 99.95%, specificity 100%, and accuracy 99.97%.</p><p><strong>Discussion: </strong>The single-exon approach for fetal RHD screening early in pregnancy is an appropriate choice in the population of Western Sweden, with a very low frequency of inconclusive results caused by the presence of maternal RHD gene variants. Due to the high sensitivity, specificity, and accuracy of the test, serological typing of neonates born to RhD negative women has no longer been performed at our laboratory since June 2023.</p>","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":"387-394"},"PeriodicalIF":2.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390609/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141179843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blood TransfusionPub Date : 2024-09-01Epub Date: 2024-01-09DOI: 10.2450/BloodTransfus.600
Stavros Tsalas, Andreas G Tsantes, Eleni Petrou, Sofia Mellou, Rozeta Sokou, Electra Loukopoulou, Anastasios G Kriebardis, Sotirios P Fortis, Dimitrios V Papadopoulos, Aristeidis G Vaiopoulos, Styliani Kokoris, Argirios E Tsantes
{"title":"The effects of pathogen reduction technology on apheresis platelet concentrates stored in PAS.","authors":"Stavros Tsalas, Andreas G Tsantes, Eleni Petrou, Sofia Mellou, Rozeta Sokou, Electra Loukopoulou, Anastasios G Kriebardis, Sotirios P Fortis, Dimitrios V Papadopoulos, Aristeidis G Vaiopoulos, Styliani Kokoris, Argirios E Tsantes","doi":"10.2450/BloodTransfus.600","DOIUrl":"10.2450/BloodTransfus.600","url":null,"abstract":"<p><strong>Background: </strong>The impact of pathogen reduction technology (PRT) such as Mirasol, and the effect of platelet additive solutions (PAS) on the activity and hemostatic profile of transfused apheresis platelets remain largely unknown. The aim of this study was to assess the in vitro hemostatic and metabolic profile of Mirasol treated platelets in PAS during a 7-day storage period.</p><p><strong>Material and methods: </strong>Ten split bags containing apheresis platelets stored in PAS were split into two groups; control platelets (No.=10 units) and PRT-treated platelets (No.=10 units). In vitro evaluation of the platelet components was performed on the 1<sup>st</sup>, 3<sup>rd</sup>, 5<sup>th</sup>, and 7<sup>th</sup> days of the storage period. Several metabolic parameters including pH, glucose, and lactate levels were evaluated, while assessment of their hemostatic capacity was performed using light transmission aggregometry (LTA) and viscoelastic studies such as rotational thromboelastometry (ROTEM) and thromboelastography (TEG). Last, Annexin V levels were measured though flow cytometry for evaluation of platelet activation.</p><p><strong>Results: </strong>Clot strength, as reflected by the maximum clot firmness (MCF) and the maximum amplitude (MA) parameters of the viscoelastic studies was significantly decreased in the PRT-treated platelets compared to the control platelets (p<0.05). Clot strength based on MCF and MA values was also found to be decreasing over storage time in PRT-treated platelets (p<0.001), while this was not evident in control platelets. Moreover, the comparison between pH, glucose, and lactate levels were indicative of increased metabolic activity in PRT-treated platelets compared to control platelets (p<0.001). Last, Annexin-V was significantly higher in PRT-treated platelets compared to control platelets on the 7<sup>th</sup> day of the storage period (p<0.001).</p><p><strong>Discussion: </strong>The results of this study indicate that increased PSL induced by PRT treatment leads to a decreased in vitro platelet hemostatic efficacy and increased metabolic activity. However, the clinical impact of these alterations needs further investigation.</p>","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":"405-414"},"PeriodicalIF":2.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390611/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139693368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blood TransfusionPub Date : 2024-09-01Epub Date: 2024-05-16DOI: 10.2450/BloodTransfus.778
Dragoslav Domanović, Antoine Lewin, Peter O'Leary, Tiziana Janner-Jametti, Soraya Amar El Dusouqui, Ana Paula Sousa, Hans Zaaijer, Barnaby Roberts, Daisy Bougard, Daniele Prati, Jonas Nordberg, Christian Erikstrup, Mart Janssen, Ryanne Lieshout-Krikke, Knut Gubbe, Niamh O'Flaherty, Genevieve Mathy, Andrée-Marie Chantillon, Riikka Lehtisalo, Øfsteng H Sørensen, Pierre Tiberghien, Stephen Thomas
{"title":"Assessing the risk of transfusion-transmitted variant Creutzfeldt-Jakob disease: a European perspective.","authors":"Dragoslav Domanović, Antoine Lewin, Peter O'Leary, Tiziana Janner-Jametti, Soraya Amar El Dusouqui, Ana Paula Sousa, Hans Zaaijer, Barnaby Roberts, Daisy Bougard, Daniele Prati, Jonas Nordberg, Christian Erikstrup, Mart Janssen, Ryanne Lieshout-Krikke, Knut Gubbe, Niamh O'Flaherty, Genevieve Mathy, Andrée-Marie Chantillon, Riikka Lehtisalo, Øfsteng H Sørensen, Pierre Tiberghien, Stephen Thomas","doi":"10.2450/BloodTransfus.778","DOIUrl":"10.2450/BloodTransfus.778","url":null,"abstract":"<p><p>Several countries have recently reassessed the international risk of variant Creutzfeldt-Jakob disease (vCJD) transmission through transfusion of blood and blood components (red blood cells, platelets and plasma) and relaxed donor deferrals based on geographic and transfusion exposure in countries formerly considered to be high risk, such as the UK. In this regard, the European Blood Alliance organised a consensus meeting of experts and involved professionals to discuss current knowledge, epidemiological data, prevention and various methods for assessing the risk of transfusion-transmitted vCJD, as well as to develop an appropriate position on possible approaches to address these challenges in Europe. Participants reached a consensus that the current risk of transfusion-transmitted vCJD associated with blood donors who either travelled to or received transfusions in the UK during the vCJD outbreak is minimal. In addressing such risks, it would be pragmatic that assessments and guidelines are developed by European expert bodies, rather than individual assessments by Member States. Regardless of the approach used, European or national, a qualitative risk assessment based on a review and analysis of available data, considering all the uncertainties and experiences of other countries, would provide crucial information to reassess blood donation strategies regarding the transfusion-associated vCJD risk.</p>","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":"415-419"},"PeriodicalIF":2.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390612/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141181424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blood TransfusionPub Date : 2024-08-06DOI: 10.2450/BloodTransfus.786
Huiru Wang, Shanglong Feng, Yanliang Zhu, Yafeng Zhang, Ziwei Zhou, Zhigang Nian, Xueqin Lu, Peng Peng, Shu Wu, Li Zhou
{"title":"The tandem CD33-CLL1 CAR-T as an approach to treat acute myeloid leukemia.","authors":"Huiru Wang, Shanglong Feng, Yanliang Zhu, Yafeng Zhang, Ziwei Zhou, Zhigang Nian, Xueqin Lu, Peng Peng, Shu Wu, Li Zhou","doi":"10.2450/BloodTransfus.786","DOIUrl":"https://doi.org/10.2450/BloodTransfus.786","url":null,"abstract":"<p><strong>Background: </strong>Acute myeloid leukemia (AML) is characterized by high heterogeneity, poor long-term survival, and a propensity for relapse. Exceptional efficacy in treating recurrent or refractory B-lymphoid malignancies has been demonstrated by Chimeric antigen receptor T cells (CAR-T cells). Given the therapeutic potential of targeting both CD33 and C-type lectin-like molecule-1 (CLL1) in AML, the development of a dual-targeting CD33-CLL1 CAR-T cells assumes significant importance.</p><p><strong>Materials and methods: </strong>The expressions of CD33 and CLL-1 antigens in peripheral blood cells and bone marrow cells from AML patients was assessed. Subsequently, a Chimeric Antigen Receptor (CAR) incorporating a dual-specific single-chain variable fragment targeting CLL1 and CD33 (CD33-CLL1-CAR-T) was engineered. The anti-tumor efficacy and potential side effects of CD33-CLL1-CAR-T cells were comprehensively investigated in both in vitro and in vivo settings.</p><p><strong>Results: </strong>The constructed tandem CD33-CLL1 CAR-T exhibited potent cytotoxicity against leukemia cell lines and human primary AML cells in vitro. Co-cultivation of AML blasts with CD33-CLL1-CAR-T cells resulted in effective proliferation and the secretion of substantial quantities of GM-CSF and IFN-γ. Importantly, the impact of CD33-CLL1-CAR-T cells on normal hematopoietic stem cells was minimal, ensuring safety in vivo mouse models. Notably, significant anti-leukemic activity was observed in the mouse model, with CD33-CLL1-CAR-T cells leading to tumor eradication and prolonged survival.</p><p><strong>Discussion: </strong>The tandem CD33-CLL1 CAR-T cells not only efficiently eliminated AML blasts but also exhibited low cytotoxicity toward normal hematopoietic stem cells (HSCs). These findings underscore the potential clinical applicability of the tandem CD33-CLL1 CAR-T cells as an effective and safe treatment strategy for AML, representing a noteworthy advancement in the field of CAR-T cells therapy.</p>","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blood TransfusionPub Date : 2024-08-05DOI: 10.2450/BloodTransfus.767
Geethika S Manchanayake, Elisenda Farssac Busquets, Ana García Buendia, Patrícia Ferrer, Gisela Palomar, Maria José Pelegay, Irene Ribera, Carmen Azqueta, Dinara Samarkanova, Jesus Fernandez-Sojo, Nerea Castillo Flores, Sergio Querol
{"title":"Efficiency assessment of cord blood banking and compatibility with delayed cord clamping.","authors":"Geethika S Manchanayake, Elisenda Farssac Busquets, Ana García Buendia, Patrícia Ferrer, Gisela Palomar, Maria José Pelegay, Irene Ribera, Carmen Azqueta, Dinara Samarkanova, Jesus Fernandez-Sojo, Nerea Castillo Flores, Sergio Querol","doi":"10.2450/BloodTransfus.767","DOIUrl":"https://doi.org/10.2450/BloodTransfus.767","url":null,"abstract":"<p><strong>Background: </strong>There is debate whether delayed umbilical cord clamping following delivery, the current gold standard, affects the proportion of cord blood units (CBU) suitable for public cord blood banking. This study was designed to assess the impact of delayed cord clamping on the number of CBU suitable for therapeutic uses.</p><p><strong>Materials and methods: </strong>To minimize variability, data from the four most active collection centers within the Programa Concordia (Spain) were included. Data on CBU collected in utero from mothers following normal vaginal deliveries from July 2018 to December 2021 were analyzed. The weight of the collection bags (as a surrogate of volume) and total nucleated cell (TNC) count were analyzed according to three defined clamping times: 30 s, 60 s and ≥120 s. The CBU were stratified as suitable for stem cell transplantation (≥110 g and ≥1,500×10<sup>6</sup> TNC/unit) or other clinical applications (≥100 g but TNC count below the threshold).</p><p><strong>Results: </strong>- There were 131 (18%), 548 (76%), and 40 (5%) CBU collected at 30 s, 60 s and ≥120 s, respectively. The median weight of the CBU decreased gradually with time, with a significant difference between units collected when the cord was clamped at 30 s or 60 s (p=0.036), so significantly fewer CBU met the minimal weight criterion (100 g) at 60 s than at 30 s (p=0.002). However, this was not reflected by the TNC available, resulting in non-statistical differences in CBU eligible for banking between these times. The major predictor of collection success was the neonate's birth-weight.</p><p><strong>Discussion: </strong>-Despite decreases in the volume of cord blood collected when cord clamping at 30 s or 60 s, TNC count is maintained resulting in similar numbers of CBU eligible for banking. The different clamping delays investigated in this study are, therefore, compatible with public cord blood banking needs.</p>","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DENV outbreak in Italy: the impact on the National Transfusion Network.","authors":"Ilaria Pati, Giulio Pisani, Flavia Riccardo, Giulietta Venturi, Vincenzo De Angelis","doi":"10.2450/BloodTransfus.696","DOIUrl":"10.2450/BloodTransfus.696","url":null,"abstract":"","PeriodicalId":49260,"journal":{"name":"Blood Transfusion","volume":" ","pages":"365-366"},"PeriodicalIF":2.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11251834/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138812043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}