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Hua Q, Lyon BW, Duke J, Felske A, Hobbs K, Holman R, Radwi G, Sidhu D, Clarke G, Nahirniak S. Isohemagglutinin titration in pooled and apheresis platelets. Transfusion 2024; 64:1279-1286. [PMID: 38795022 DOI: 10.1111/trf.17873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 04/15/2024] [Accepted: 05/01/2024] [Indexed: 05/27/2024]
Abstract
BACKGROUND Platelet inventory constraints necessitate ABO-incompatible platelet transfusion. Many minimize the hemolytic impact by confirming low titre (LT) donor isohemagglutinins. This process is costly. Pathogen-reduced platelets (PRP) in platelet additive solutions (PAS) will dilute plasma and decrease high-titre isohemagglutinins (HT). We determined the proportion of HT platelets and incompatible transfusions for units suspended in plasma to reassess the need for titres following introduction of PRP/PAS. STUDY DESIGN AND METHODS Our titre method is manual tube (1:50) dilution of platelet supernatant from apheresis or whole blood derived buffy coat pools suspended in plasma, tested with A1/B red cells. Testing included 49,058 pooled and 11,738 apheresis platelets over 4 years. The HT proportion, rate of out-of-group transfusions, and hemolytic reactions were determined. The impact of PAS dilution was estimated. RESULTS Totally 60,796 platelet units were tested. Group O pooled and group B apheresis platelets had HT in 6.6% and 5.7%, respectively. Group A pooled and apheresis platelets included 2% with HT. Approximately 25% of platelets transfused were ABO-incompatible and no hemolytic reactions were reported. Based on the proportions of PAS-E and plasma for PRP platelets, plasma from each donor comprises 11 mL (6% of total volume) vs 20-257 mL in untreated pools. PAS-E will replace and dilute residual plasma by at least 50%. DISCUSSION Rare platelet pools may demonstrate HT. PRP platelets with PAS will reduce titres and may abrogate the need for titration. A strategy of group specific transfusion or transfusion of group A PRP platelet transfusions may be a safe alternative.
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Affiliation(s)
- QingYun Hua
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | - Bruce W Lyon
- Transfusion & Transplantation Medicine Program, Alberta Precision Laboratories, Edmonton, Alberta, Canada
| | - Jennifer Duke
- Transfusion & Transplantation Medicine Program, Alberta Precision Laboratories, Edmonton, Alberta, Canada
| | - Amanda Felske
- Transfusion & Transplantation Medicine Program, Alberta Precision Laboratories, Edmonton, Alberta, Canada
| | - Karen Hobbs
- Transfusion & Transplantation Medicine Program, Alberta Precision Laboratories, Edmonton, Alberta, Canada
| | - Ryan Holman
- Transfusion & Transplantation Medicine Program, Alberta Precision Laboratories, Edmonton, Alberta, Canada
| | - Ghazala Radwi
- Transfusion & Transplantation Medicine Program, Alberta Precision Laboratories, Edmonton, Alberta, Canada
| | - Davinder Sidhu
- Transfusion & Transplantation Medicine Program, Alberta Precision Laboratories, Edmonton, Alberta, Canada
| | - Gwen Clarke
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | - Susan Nahirniak
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
- Transfusion & Transplantation Medicine Program, Alberta Precision Laboratories, Edmonton, Alberta, Canada
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Robbins M, Huish S, Griffiths A, Powley T, Daly J, Cardigan R. Influence of donor age, sex and ethnicity on high-titre anti-A and -B: Review of 6 million donations from two national blood providers. Vox Sang 2024. [PMID: 38889999 DOI: 10.1111/vox.13697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND AND OBJECTIVES Some blood operators routinely screen blood donations for high-titre (HT) anti-A/B to reduce the risk of a haemolytic transfusion reaction due to out-of-group plasma-rich components. We assessed donor factors associated with an increased likelihood of screening positive and compared routine data between England and Australia. MATERIALS AND METHODS Data were assessed from HT screening during 2018-2020 in Australia and 2018-2021 in England, totalling nearly 6 million blood donations. Screening was performed using a Beckman Coulter PK7300 analyser with a micro-titre plate saline direct agglutination test in both countries, although different reagent red cells were chosen. HT-positive was defined as testing positive at a titre of 128 or above. RESULTS The likelihood of a donor testing HT-positive was greater for females than males, declined with age and was dependent on the ABO group. However, the proportion of donors testing HT-positive was consistently higher in Australia than in England: overall, 14% of group O donations and 5% of group A donations in England tested HT-positive, compared with 51% and 22%, respectively in Australia. English data also showed that donors from Black, Asian or mixed ethnic backgrounds were more likely to test HT-positive than White donors. CONCLUSION These data demonstrate that donor sex, age, ABO group and ethnicity affect the likelihood of testing HT-positive. Differences in testing methods likely had a significant impact on the proportion of donors testing as HT-positive or -negative rather than any differences in donor populations.
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Affiliation(s)
- Melanie Robbins
- Component Development, NHS Blood & Transplant, Cambridge, UK
| | - Sian Huish
- Component Development, NHS Blood & Transplant, Cambridge, UK
| | | | - Tanya Powley
- Clinical Services and Research, Australian Red Cross Lifeblood, Sydney, Australia
| | - James Daly
- Clinical Services and Research, Australian Red Cross Lifeblood, Sydney, Australia
| | - Rebecca Cardigan
- Component Development, NHS Blood & Transplant, Cambridge, UK
- Department of Haematology, University of Cambridge, Cambridge, UK
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3
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Han MH, Badami KG. ABO non-identical platelet transfusions, immune platelet refractoriness and platelet support. Br J Haematol 2024; 204:2097-2102. [PMID: 38419302 DOI: 10.1111/bjh.19359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
ABO-non-identical (ABO-ni) platelets may be another risk factor for immune platelet transfusion refractoriness (i-PTR). We examined the effect of such platelets on i-PTR and subsequent platelet support through retrospective analysis of 17 322 New Zealand patients receiving ≥1 platelets. Immune PTR was defined as PTR with anti-HLA-I/HPA positivity. Univariate and multivariate analyses determined the independent risk factors for i-PTR. One hundred and eighty-eight patients (1.1%) had i-PTR and received more ABO-ni platelets than non-refractory patients (53.2% vs. 29.5%; p < 0.001). More non-O than group O patients had received ABO-ni platelets before i-PTR diagnosis (67.6% vs. 32.5%; p < 0.001). Female sex (p < 0.001), age ≤ 60 years (p = 0.004), haematology patients (p < 0.001) and ≥2 ABO-ni platelets (p < 0.001) were the independent risk factors for i-PTR. More i-PTR patients with anti-HLA-I were non-O compared to group O (90.1% vs. 75.3%; p = 0.007). More with anti-HLA-I + anti-HPA were group O than non-O (24.7% vs. 9.0%; p = 0.003). ABO-ni platelet-exposed i-PTR patients required matched platelets for longer than those receiving only ABO-i platelets (96.5 vs. 59.0 days; p = 0.02). ABO-ni platelets may be a risk factor for i-PTR with dose effect. ABO-i platelets should be considered whenever possible for at-risk patients.
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Affiliation(s)
- Min-Hi Han
- Department of Haematology, Christchurch Hospital, Christchurch, New Zealand
- Clinical Department, New Zealand Blood Service, Christchurch, New Zealand
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Bougie DW, Reese SE, Birch RJ, Bookwalter DB, Mitchell PK, Roh D, Kreuziger LB, Cable RG, Goel R, Gottschall J, Hauser RG, Hendrickson JE, Hod EA, Josephson CD, Kahn S, Kleinman SH, Mast AE, Ness PM, Roubinian NH, Sloan S. Associations between ABO non-identical platelet transfusions and patient outcomes-A multicenter retrospective analysis. Transfusion 2023; 63:960-972. [PMID: 36994786 PMCID: PMC10175171 DOI: 10.1111/trf.17319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/24/2023] [Accepted: 02/26/2023] [Indexed: 03/31/2023]
Abstract
BACKGROUND Due to platelet availability limitations, platelet units ABO mismatched to recipients are often transfused. However, since platelets express ABO antigens and are collected in plasma which may contain ABO isohemagglutinins, it remains controversial as to whether ABO non-identical platelet transfusions could potentially pose harm and/or have reduced efficacy. STUDY DESIGN AND METHODS The large 4-year publicly available Recipient Epidemiology and Donor Evaluation Study-III (REDS-III) database was used to investigate patient outcomes associated with ABO non-identical platelet transfusions. Outcomes included mortality, sepsis, and subsequent platelet transfusion requirements. RESULTS Following adjustment for possible confounding factors, no statistically significant association between ABO non-identical platelet transfusion and increased risk of mortality was observed in the overall cohort of 21,176 recipients. However, when analyzed by diagnostic category and recipient ABO group, associations with increased mortality for major mismatched transfusions were noted in two of eight subpopulations. Hematology/Oncology blood group A and B recipients (but not group O) showed a Hazard Ratio (HR) of 1.29 (95%CI: 1.03-1.62) and intracerebral hemorrhage group O recipients (but not groups A and B) showed a HR of 1.75 (95%CI: 1.10-2.80). Major mismatched transfusions were associated with increased odds of receiving additional platelet transfusion each post-transfusion day (through day 5) regardless of the recipient blood group. DISCUSSION We suggest that prospective studies are needed to determine if specific patient populations would benefit from receiving ABO identical platelet units. Our findings indicate that ABO-identical platelet products minimize patient exposure to additional platelet doses.
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Affiliation(s)
| | - Sarah E. Reese
- Public Health and Epidemiology Practice, Westat, Rockville, MD
| | | | | | | | | | | | | | - Ruchika Goel
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Ronald George Hauser
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, CT
| | - Jeanne E. Hendrickson
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, CT
- Department of Pathology and Laboratory Medicine, Center for Transfusion and Cellular Therapies, Emory University School of Medicine, Atlanta, GA
| | - Eldad A. Hod
- Columbia University Irving Medical Center, New York, NY
| | - Cassandra D. Josephson
- Cancer and Blood Disorders Institute, Johns Hopkins All Children’s Hospital, St. Petersburg, FL., and Departments of Oncology and Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | | | - Alan E Mast
- Blood Research Institute, Versiti Milwaukee WI
| | - Paul M. Ness
- American Red Cross Scientific Affairs, Farmington, CT
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Yazer MH, Díaz-Valdés JR, Triulzi DJ, Cap AP. Wider perspectives: It's a changing world-The use of ABO-incompatible plasma for resuscitating massively bleeding patients. Br J Haematol 2023; 200:291-296. [PMID: 36134727 DOI: 10.1111/bjh.18460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/23/2022] [Accepted: 09/01/2022] [Indexed: 01/21/2023]
Affiliation(s)
- Mark H Yazer
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - José R Díaz-Valdés
- Hematology and Transfusion Service, Spanish Military Central Hospital, University of Alcalá, Madrid, Spain
| | - Darrell J Triulzi
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Andrew P Cap
- U.S. Army Institute of Surgical Research, Department of Medicine, Uniformed Services University, Bethesda, Maryland, USA
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Garraud O, Hamzeh-Cognasse H, Chalayer E, Duchez AC, Tardy B, Oriol P, Haddad A, Guyotat D, Cognasse F. Platelet transfusion in adults: An update. Transfus Clin Biol 2023; 30:147-165. [PMID: 36031180 DOI: 10.1016/j.tracli.2022.08.147] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Many patients worldwide receive platelet components (PCs) through the transfusion of diverse types of blood components. PC transfusions are essential for the treatment of central thrombocytopenia of diverse causes, and such treatment is beneficial in patients at risk of severe bleeding. PC transfusions account for almost 10% of all the blood components supplied by blood services, but they are associated with about 3.25 times as many severe reactions (attributable to transfusion) than red blood cell transfusions after stringent in-process leukoreduction to less than 106 residual cells per blood component. PCs are not homogeneous, due to the considerable differences between donors. Furthermore, the modes of PC collection and preparation, the safety precautions taken to limit either the most common (allergic-type reactions and febrile non-hemolytic reactions) or the most severe (bacterial contamination, pulmonary lesions) adverse reactions, and storage and conservation methods can all result in so-called PC "storage lesions". Some storage lesions affect PC quality, with implications for patient outcome. Good transfusion practices should result in higher levels of platelet recovery and efficacy, and lower complication rates. These practices include a matching of tissue ABH antigens whenever possible, and of platelet HLA (and, to a lesser extent, HPA) antigens in immunization situations. This review provides an overview of all the available information relating to platelet transfusion, from donor and donation to bedside transfusion, and considers the impact of the measures applied to increase transfusion efficacy while improving safety and preventing transfusion inefficacy and refractoriness. It also considers alternatives to platelet component (PC) transfusion.
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Affiliation(s)
- O Garraud
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France.
| | | | - E Chalayer
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; Saint-Etienne University Hospital, Department of Hematology and Cellular Therapy, Saint-Étienne, France
| | - A C Duchez
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France
| | - B Tardy
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; CHU de Saint-Etienne, INSERM and CIC EC 1408, Clinical Epidemiology, Saint-Étienne, France
| | - P Oriol
- CHU de Saint-Etienne, INSERM and CIC EC 1408, Clinical Epidemiology, Saint-Étienne, France
| | - A Haddad
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; Sacré-Cœur Hospital, Beirut, Lebanon; Lebanese American University, Beirut, Lebanon
| | - D Guyotat
- Saint-Etienne University Hospital, Department of Hematology and Cellular Therapy, Saint-Étienne, France
| | - F Cognasse
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France
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Abstract
Platelet transfusions are commonly administered for the prevention or treatment of bleeding in patients with acquired thrombocytopenia across a range of clinical contexts. Recent data, including randomized trials, have highlighted uncertainties in the risk-benefit balance of this therapy, which is the subject of this review. Hemovigilance systems report that platelets are the most frequently implicated component in transfusion reactions. There is considerable variation in platelet count increment after platelet transfusion, and limited evidence of efficacy for clinical outcomes, including prevention of bleeding. Bleeding events commonly occur despite the different policies for platelet transfusion prophylaxis. The underlying mechanisms of harm reported in randomized trials may be related to the role of platelets beyond hemostasis, including mediating inflammation. Research supports the implementation of a restrictive platelet transfusion policy. Research is needed to better understand the impact of platelet donation characteristics on outcomes, and to determine the optimal thresholds for platelet transfusion before invasive procedures or major surgery (eg, laparotomy). Platelet transfusion policies should move toward a risk-adapted approach that does not focus solely on platelet count.
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Screening of group O platelet donors for high-titer ABO antibodies- limitations, feasibility, and future. Transfus Apher Sci 2022; 61:103394. [DOI: 10.1016/j.transci.2022.103394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 02/03/2022] [Indexed: 11/21/2022]
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