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Kelly S. Logistics, risks, and benefits of automated red blood cell exchange for patients with sickle cell disease. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2023; 2023:646-652. [PMID: 38066846 PMCID: PMC10905321 DOI: 10.1182/hematology.2023000498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Red blood cell (RBC) transfusions treat and prevent severe complications of sickle cell disease (SCD) and can be delivered as a simple or exchange transfusion. During an exchange, some of the patient's abnormal hemoglobin (Hb) S (HbS) RBCs are removed. An apheresis device can accomplish an automated RBC exchange, simultaneously removing patient's RBCs while returning other blood components along with normal RBCs. Automated RBC exchange is therefore an isovolemic transfusion that can efficiently decrease HbS RBCs while limiting iron loading and hyperviscosity. However, specialized equipment, trained personnel, appropriate vascular access, and increased RBC exposure are required compared to simple or manual RBC exchange. Therefore, risks and benefits must be balanced to make individualized decisions for patients with SCD who require transfusion.
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Affiliation(s)
- Shannon Kelly
- UCSF Benioff Children's Hospital Oakland, Oakland, CA
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2
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Cunard R, Gopal S, Kopko PM, Dang MU, Hazle KM, Sanchez AP. Comprehensive guide to managing a chronic automated red cell exchange program in sickle cell disease. J Clin Apher 2022; 37:497-506. [PMID: 36172983 DOI: 10.1002/jca.22014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/12/2022] [Accepted: 09/01/2022] [Indexed: 11/09/2022]
Abstract
Sickle cell disease (SCD) is associated with significant morbidity and mortality, and limits both the quality and quantity of life. Transfusion therapy, specifically automated red cell exchange (aRCE), plays a key role in management of SCD and is beneficial for certain indications in the chronic, outpatient setting. The approach to maintain a successful chronic aRCE program for SCD is multifaceted. This review will highlight important considerations including indications for aRCE, patient selection, transfusion medicine pearls, vascular access needs, complications of therapy, aRCE prescription, and therapy optimization. Moreover, the importance of a multidisciplinary approach with frequent communication between the services involved cannot be overstated. Ultimately, the underlying goal of a chronic RCE program is to improve the quality of life and longevity of patients with SCD.
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Affiliation(s)
- Robyn Cunard
- Division of Nephrology-Hypertension, Veterans Affairs San Diego Healthcare System, San Diego, California, USA.,Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Srila Gopal
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Patricia M Kopko
- Department of Pathology and Laboratory Medicine, University of California San Diego, La Jolla, California, USA
| | | | | | - Amber P Sanchez
- Department of Medicine, University of California San Diego, La Jolla, California, USA
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3
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Lauridsen L, Campbell‐Lee SA. Doing more with less: Patient blood management meets sickle cell disease management. Transfusion 2022; 62:1688-1692. [DOI: 10.1111/trf.17073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 08/05/2022] [Indexed: 12/01/2022]
Affiliation(s)
- Luke Lauridsen
- Transfusion Medicine University of Illinois at Chicago Chicago Illinois USA
- Department of Pathology University of Illinois at Chicago Chicago Illinois USA
| | - Sally A. Campbell‐Lee
- Department of Pathology University of Illinois at Chicago Chicago Illinois USA
- Vitalant Centralized Transfusion Service (Chicago) Chicago Illinois USA
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4
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Wallace LR, Thibodeaux SR. Transfusion Support for Patients with Sickle Cell Disease. Transfus Apher Sci 2022; 61:103556. [DOI: 10.1016/j.transci.2022.103556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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5
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Wade J, Yee MEM, Easley KA, Pahz S, Butler H, Zerra PE, Josephson CD, Fasano RM. Procedural adverse events in pediatric patients with sickle cell disease undergoing chronic automated red cell exchange. Transfusion 2022; 62:584-593. [PMID: 35072269 DOI: 10.1111/trf.16807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/27/2021] [Accepted: 12/27/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Chronic automated red cell exchange (RCE) is increasingly employed for sickle cell disease (SCD). There is a paucity of data on the incidence of RCE adverse events (AEs) and potential patient and procedural risk factors for AEs. METHODS A retrospective review of pediatric SCD patients receiving chronic RCE over 3 years was performed to determine the frequency of AEs and identify procedural and patient AE risk factors. AE incidence, AE rate, incidence rate ratios (IRRs), and relative risks (RRs) were calculated based on various procedural and patient characteristics by univariable (UV) and multivariable (MV) analyses. RESULTS In 38 patients receiving 760 procedures, there were 150 (19.7%) AEs, 36 (4.7%) were symptomatic AEs. AE rates were 20.2 [95% CI 17.2, 23.6] and 4.8 [95% CI 3.49, 6.70] per 100 person months for AEs and symptomatic AEs, respectively. AE incidences were: hypocalcemia (117; 15.4%), dizziness (22; 3.0%), hypotension (15; 2.0%), and nausea (14; 1.8%). Patients with baseline Hct ≥30% experienced more total AEs and symptomatic AEs. Patients with pre-procedure systolic BP <50th percentile, severe CNS vasculopathy, and non-SCA genotype (HbSC or Sβ+ thalassemia) exhibited more total AEs. IHD depletion was not associated with an increased incidence of AEs or symptomatic AEs. CONCLUSION SCD patients with Hct ≥30%, systolic BP <50th percentile, severe CNS vasculopathy, and possibly non-SCA genotype may be at higher risk for RCE-related AEs. The effect of IHD on AE risk is likely minimal. Individualized AE risk assessment should be performed in all SCD patients undergoing chronic automated RCE.
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Affiliation(s)
- Jenna Wade
- Center for Transfusion and Cellular Therapy, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA.,Medical Sciences Institute, Blood Center of Wisconsin, Part of Versiti, Milwaukee, Wisconsin, USA.,Department of Pathology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Marianne E M Yee
- Center for Transfusion and Cellular Therapy, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA.,Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia, USA.,Department of Pediatrics, Division of Hematology/Oncology, Emory University, Atlanta, Georgia, USA
| | - Kirk A Easley
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Atlanta, Georgia, USA
| | - Shannon Pahz
- Department of Pathology, Children's Healthcare of Atlanta, Atlanta, Georgia, USA
| | - Hailly Butler
- Center for Transfusion and Cellular Therapy, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA
| | - Patricia E Zerra
- Center for Transfusion and Cellular Therapy, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA.,Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia, USA.,Department of Pediatrics, Division of Hematology/Oncology, Emory University, Atlanta, Georgia, USA
| | - Cassandra D Josephson
- Center for Transfusion and Cellular Therapy, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA.,Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia, USA.,Department of Pediatrics, Division of Hematology/Oncology, Emory University, Atlanta, Georgia, USA
| | - Ross M Fasano
- Center for Transfusion and Cellular Therapy, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA.,Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia, USA
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Garcia AJ, Okeagu CN, Kaye AD, Abd-Elsayed A. Metabolism, Pathophysiology, and Clinical Considerations of Iron Overload, a Comprehensive Review. ESSENTIALS OF BLOOD PRODUCT MANAGEMENT IN ANESTHESIA PRACTICE 2021:289-299. [DOI: 10.1007/978-3-030-59295-0_28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Hacking SM. Red blood cell exchange for SARS-CoV-2: A Gemini of therapeutic opportunities. Med Hypotheses 2020; 144:110227. [PMID: 33254534 PMCID: PMC7467009 DOI: 10.1016/j.mehy.2020.110227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/28/2020] [Indexed: 01/25/2023]
Abstract
As of now, therapeutic strategies for the novel coronavirus (SARS-CoV-2) are limited and much focus has been placed on social distancing techniques to “flatten the curve”. Initial treatment efforts including ventilation and hydroxychloroquine garnered significant controversy and today, SARS-CoV-2 outbreaks are still occurring throughout the world. Needless to say, new therapeutic strategies are needed to combat this unprecedented pandemic. Nature Reviews Immunology recently published an article hypothesizing the pathogenesis of TAM (Tyro3, Axl, and Mer) receptor signaling in COVID-19. In it they expressed that hypercoagulation and immune hyper-reaction could occur secondary to decreased Protein S (PROS1). And hypoxia has been recently discovered to significantly decrease expression of PROS1. Regarding the cause of hypoxia in COVID-19; NIH funded research utilizing state-of-the-art topologies has recently demonstrated significant metabolomic, proteomic, and lipidomic structural aberrations in hemoglobin (Hb) secondary to infection with SARS-CoV-2. In this setting, Hb may be incapacitated and unable to respond to environmental variations, compromising RBCs and oxygen delivery to tissues. The use of red blood cell exchange would target hypoxia at its source; representing a Gemini of therapeutic opportunities.
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Affiliation(s)
- Sean M Hacking
- Department of Pathology and Laboratory Medicine, Donald and Barbara Zucker School of Medicine at Northwell, New York, USA.
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Kelly S, Rodeghier M, DeBaun MR. Automated exchange compared to manual and simple blood transfusion attenuates rise in ferritin level after 1 year of regular blood transfusion therapy in chronically transfused children with sickle cell disease. Transfusion 2020; 60:2508-2516. [PMID: 32812667 DOI: 10.1111/trf.15982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 06/16/2020] [Accepted: 06/22/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Optimal strategies for regular blood transfusion therapy are not well defined in sickle cell disease (SCD). This analysis tested the hypothesis that in the first of year of regular transfusions, when chelation therapy use is minimal, automated exchange transfusion would be the superior method for attenuating the rise in ferritin levels compared to simple and manual exchange transfusions. STUDY DESIGN AND METHODS The Silent Cerebral Infarct Multi-Center Clinical Trial randomly allocated children with SCD and silent cerebral infarcts to receive standard care or regular transfusions with a target pre-transfusion HbS concentration ≤ 30% and minimum hemoglobin level > 9.0 g/dL. Participants with at least nine transfusions and sufficient ferritin testing in the first year of the trial were included in a planned secondary analysis. Ferritin levels by the end of the first study year were compared between participants receiving automatic exchange transfusion, manual exchange transfusion, and simple transfusion. RESULTS A total of 83 participants were analyzed. During the first year of the study, 75.9% of the participants had >80% of transfusions via one transfusion method. At baseline no significant differences in ferritin levels were observed in the three transfusion groups (p = 0.1). After 1 year of transfusions the median (interquartile range) ferritin levels in the simple transfusion (n = 40), manual exchange transfusion (n = 34) and automatic exchange transfusion (n = 9) groups were 1800 ng/mL (1426-2204 ng/mL), 1530 ng/mL (1205-1805 ng/mL), and 355 ng/mL (179-579 ng/mL), respectively (p < 0.001). CONCLUSION Automated exchange transfusion, when compared to other transfusion methods, is the optimal transfusion strategy for attenuating increase in ferritin levels in children with SCD.
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Affiliation(s)
- Shannon Kelly
- Department of Epidemiology, Vitalant Research Institute, San Francisco, California, USA.,Department of Pediatrics, Division of Hematology/Oncology, UCSF Benioff Children's Hospital Oakland, Oakland, California, USA
| | | | - Michael R DeBaun
- Department of Pediatrics, Division of Hematology/Oncology, Vanderbilt-Meharry Center for Excellence in Sickle Cell Disease, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Sharma D, Ogbenna AA, Kassim A, Andrews J. Transfusion support in patients with sickle cell disease. Semin Hematol 2020; 57:39-50. [PMID: 32892842 DOI: 10.1053/j.seminhematol.2020.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Indexed: 12/23/2022]
Abstract
Blood transfusions are an integral component of the management of acute and chronic complications of sickle cell disease. Red cells can be administered as a simple transfusion, part of a modified exchange procedure involving manual removal of autologous red cells and infusion of donor red cells, and part of an automated red cell exchange procedure using apheresis techniques. Individuals with sickle cell disease are at risk of multiple complications of blood transfusions, including transfusional hemosiderosis, auto- and alloimmunization to minor red cell and human leukocyte antigens, delayed hemolytic transfusion reactions, and hyper-hemolysis. In low- and middle-income countries in sub-Saharan Africa, where a directed donor system is prevalent and limited laboratory methods are in place to perform extended red cell phenotyping, leukodepletion of cellular products, and infectious disease screening, there are additional challenges to providing safe and adequate transfusion support for this patient population. We review current indications for acute and chronic transfusions in sickle cell disease that are derived primarily from randomized controlled trials and observational studies in children living in high-income countries. We will highlight populations with unique transfusion needs, such as pregnant women and children, as well as the role of the transfusion medicine consultative service for individuals with sickle cell disease planning to have curative hematopoietic stem cell transplantation or gene therapy. Finally, we will discuss risk factors for alloimmunization in individuals with sickle cell disease, emerging new strategies to prevent alloimmunization in this population, and critical gaps in the implementation of transfusion guidelines for sickle cell disease in high- and low-income countries.
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Affiliation(s)
- Deva Sharma
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Division of Transfusion Medicine, Department of Pathology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Ann Abiola Ogbenna
- Department of Hematology and Blood Transfusion, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Adetola Kassim
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Vanderbilt-Meharry Sickle Cell Center of Excellence, Vanderilt University Medical Center, Nashville, TN, USA.
| | - Jennifer Andrews
- Division of Transfusion Medicine, Department of Pathology, Vanderbilt University Medical Center, Nashville, TN, USA; Division of Hematology and Oncology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
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Karafin MS, Hendrickson JE, Kim HC, Kuliya-Gwarzo A, Pagano MB, Perumbeti A, Shi PA, Tanhehco YC, Webb J, Wong E, Eichbaum Q. Red cell exchange for patients with sickle cell disease: an international survey of current practices. Transfusion 2020; 60:1424-1433. [PMID: 32583456 DOI: 10.1111/trf.15863] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 10/24/2023]
Abstract
INTRODUCTION Red cell exchange (RCE) therapy is increasingly used to treat patients with acute or chronic manifestations of sickle cell disease (SCD). However, little is known regarding the most safe and effective practice parameters associated with this particular therapy. METHODS A SCD subcommittee of members of the American Society for Apheresis (ASFA) developed a 122-question survey and administered it via email to other ASFA members. The survey inquired about clinical indications for treatment, practice patterns, and transfusion policies for RCE when used for patients with SCD. RESULTS Ninety-nine distinct institutions completed the survey. Twenty-one (21%) were from outside of the US. Twenty-two (22%) provided chronic transfusion therapy to >10 patients, and both adult (25%) and pediatric-focused services (20%) were represented. Common acute indications for RCE included acute chest syndrome, acute ischemic stroke, and pre-surgical prophylaxis. Common chronic indications included primary stroke prophylaxis, secondary stroke prophylaxis, and recurrent acute chest syndrome. Respondents most commonly set a post-RCE treatment target of 30% for the hematocrit and hemoglobin S levels, regardless of the therapeutic indication. Units for RCE were phenotypically matched in 95% of cases. About 40% of respondents reported using isovolemic hemodilution. CONCLUSIONS This survey solicited the current practice variations in RCE from a diverse range of practice sites. Many sites reported similar practice patterns and challenges but some variations emerged. To our knowledge, this survey represents the largest and most in-depth investigation of the use of RCE for patients with SCD, and could inform future studies in the field.
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Affiliation(s)
- Matthew S Karafin
- Versiti Wisconsin & The Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | | | - Haewon C Kim
- Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Monica B Pagano
- University of Washington Medical Center, Seattle, Washington, USA
| | | | | | | | - Jennifer Webb
- Children's National Hospital, Washington, District of Columbia, USA
| | - Edward Wong
- Children's National Hospital, Washington, District of Columbia, USA
| | - Quentin Eichbaum
- Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
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Kelly S, Belisário AR, Werneck Rodrigues DO, Carneiro-Proietti ABF, Gonçalez TT, Loureiro P, Flor-Park MV, Maximo C, Mota RA, Dinardo C, Brambilla D, Preiss L, Sabino E, Custer B. Blood utilization and characteristics of patients treated with chronic transfusion therapy in a large cohort of Brazilian patients with sickle cell disease. Transfusion 2020; 60:1713-1722. [PMID: 32579245 DOI: 10.1111/trf.15818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 01/13/2020] [Accepted: 01/13/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Red blood cell (RBC) transfusions are used in sickle cell disease (SCD) to treat acute complications or as chronic transfusion therapy (CTT) to prevent severe manifestations. The objectives of this study were to describe blood utilization and adverse events (AEs) associated with RBCs in the Brazilian SCD population and compare characteristics of patients treated or not with CTT. STUDY DESIGN AND METHODS A SCD cohort was established at six Brazilian centers. Medical and blood bank records were abstracted for clinical and transfusion history. Two controls not treated with CTT matched on center, SCD genotype, sex, and age were selected for each CTT case within the cohort to compare characteristics between the two groups. RESULTS Most of the 2794-member cohort had received a transfusion (75.0% of children and 89.2% of adults) with 29.2% of patients receiving transfusion in the prior year. There were 170 (10.6%) children and 115 (9.2%) adults treated with CTT. Children not treated with CTT were more likely to have pain and acute chest hospitalizations in the prior year (25.3% vs. 11.9%, p = 0.0003; and 22.0% vs. 10.7%, p = 0.002, respectively). Both iron overload and alloimmunization were more common in CTT cases compared to controls (65.6% vs. 17.0% and 36.2% vs. 15.9%, respectively). A higher proportion of adults treated with CTT demonstrated oxygen saturation of greater than 95% compared to controls not treated (51.1% vs. 39.2%), while there was no difference in oxygenation between children treated or not. Of 4501 transfusion episodes, 28 (0.62%) AEs were reported. There was no difference in AEs associated with transfusions for acute indications versus CTT. CONCLUSION Red blood cell transfusion was common in Brazilian SCD patients, with utilization driven by CTT. Transfusion reactions were not common; however, alloimmunization and iron overload were frequent among those on CTT, highlighting the need for novel clinical strategies to mitigate these risks.
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Affiliation(s)
- Shannon Kelly
- Vitalant Research Institute, San Francisco, California, USA.,UCSF Benioff Children's Hospital Oakland, Oakland, California, USA
| | | | | | | | | | - Paula Loureiro
- Hemope/University of Pernambuco, Recife, Pernambuco, Brazil
| | - Miriam V Flor-Park
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Instituto da Criança, São Paulo, Brazil
| | - Claudia Maximo
- Hemorio, Rio de Janeiro Hemocenter, Rio de Janeiro, Brazil
| | | | - Carla Dinardo
- Pró-Sangue, São Paulo Hemocenter, São Paulo, Brazil.,Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil
| | - Don Brambilla
- Research Triangle Institute (RTI) International, Triangle Park, North Carolina, USA
| | - Liliana Preiss
- Research Triangle Institute (RTI) International, Triangle Park, North Carolina, USA
| | - Ester Sabino
- Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil
| | - Brian Custer
- Fundação Hemominas/Minas Gerais Hemocenter, Minas Gerais, Brazil.,Department of Laboratory Medicine, University of California at San Francisco, San Francisco, California, USA
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Sachdev V, Rosing DR, Thein SL. Cardiovascular complications of sickle cell disease. Trends Cardiovasc Med 2020; 31:187-193. [PMID: 32139143 DOI: 10.1016/j.tcm.2020.02.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/26/2020] [Accepted: 02/07/2020] [Indexed: 12/12/2022]
Abstract
Sickle cell disease (SCD) is the most common inherited blood disorder in the United States, and a global health problem. Pathological features of the abnormal hemoglobin (HbS) result in 2 hallmarks of the disease - recurrent episodes of acute microvascular occlusion and chronic hemolytic anemia - that inflict continuous and insidious damage to multiple organs. With improved childhood survival, SCD in adults has evolved into a chronic degenerative disease with underlying damage to multiple organs including the heart and lungs. Cardiopulmonary complications, including cardiomyopathy, diastolic dysfunction, pulmonary hypertension (PH), and sudden cardiac death are the most common causes of morbidity and mortality. Awareness of the sickle-related cardiovascular phenotypes is important for screening, early diagnosis, and intervention of cardiac complications in this disorder.
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Affiliation(s)
- Vandana Sachdev
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Douglas R Rosing
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Swee Lay Thein
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
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13
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Stussi G, Buser A, Holbro A. Red Blood Cells: Exchange, Transfuse, or Deplete. Transfus Med Hemother 2019; 46:407-416. [PMID: 31933570 DOI: 10.1159/000504144] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 10/15/2019] [Indexed: 12/11/2022] Open
Abstract
Erythrocytapheresis, red blood cell (RBC) depletion, and RBC exchange transfusions are apheresis techniques used to rapidly lower the circulating RBC mass or to exchange the patient erythrocyte mass with donor RBC. Automated RBC exchange is performed using an apheresis device, while manual RBC exchange is based on sequential phlebotomies and isovolemic replacement. Compared to simple RBC transfusions, RBC exchange offers several advantages, e.g., a lower risk for iron accumulation and efficient control of pathological erythrocyte populations. Disadvantages are the higher costs of the procedure, the increased use of donor RBC, and the requirement of apheresis devices and trained hospital staff. The most frequent indication for RBC exchange is sickle cell disease (SCD). RBC exchange transfusions are standard treatment in SCD patients with a history of or a risk for acute stroke and are clinical options for other acute complications of SCD. The most common indication for RBC depletion is the removal of donor RBC from the bone marrow grafts in major ABO-incompatible allogeneic hematopoietic stem cell transplantation to avoid immediate hemolysis. Rare indications for RBC exchange are severe infections with intraerythrocytic pathogens such as malaria or babesiosis and severe erythrocytosis or hereditary hemochromatosis where the aim is to rapidly decrease RBC populations or the iron content. However, only few high-quality studies are available looking at the efficacy of RBC exchange in the different disease entities, and treatment is often based on low levels of evidence and should therefore be decided in close collaboration with a transfusion medicine specialist.
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Affiliation(s)
- Georg Stussi
- Division of Hematology, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Andreas Buser
- Regional Transfusion Service, Swiss Red Cross, Basel, Switzerland.,Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - Andreas Holbro
- Regional Transfusion Service, Swiss Red Cross, Basel, Switzerland.,Division of Hematology, University Hospital Basel, Basel, Switzerland
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14
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Colavita D, Kim HC, Friedman DF. The sex parameter in estimation of total blood volume for pediatric erythrocytapheresis. J Clin Apher 2019; 34:692-699. [PMID: 31566780 DOI: 10.1002/jca.21748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 07/11/2019] [Accepted: 09/04/2019] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND OBJECTIVES Estimation of the total blood volume (TBV) is fundamental to the control of automated red cell exchange (RCE). Error in the TBV estimate can produce outcomes that deviate from the prescribed targets, and may endanger the patient. Both the Spectra Optia and the COBE Spectra use the Nadler formulae to estimate TBV. There is a potential for large overestimates of TBV when the Nadler formula for males is applied to prepubertal boys. MATERIALS AND METHODS This study uses our large clinical experience with RCE to examine procedure outcomes when RCE in prepubertal boys is programed with the female parameter instead of male. We determined the differences between programmed and measured values for three outcomes: (a) Programmed End Hematocrit - Post spun HCT by Hemata Stat II, (b) Programmed End Hematocrit - Post CBC HCT, and (c) Predicted Post Hgb S+C - Measured Post Hgb S+C. We defined the experimental group as Male-Female, where the biological sex was male but programmed sex was female, and two control groups where programmed and biological sex were the same. RESULTS Small but statistically significant differences were demonstrated between the mean programmed-to-observed deviations of these outcome measures in all but two group and subgroup comparisons; however, the absolute magnitudes of the observed differences were not clinically significant. The suggested weight cutoff to begin programming males as male is 35 kg. CONCLUSION The study provides experiential validation that performing RCE in prepubertal boys using the female parameter is safe.
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Affiliation(s)
| | - Haewon C Kim
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
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15
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Abstract
PURPOSE OF REVIEW Red cell transfusions are one of the most common and important therapies used for patients with sickle cell disease (SCD). For prevention of strokes, there is abundant evidence that transfusions are efficacious, whereas for other indications, such as prevention of pain, there are less data. Nonetheless, with few therapeutic options, the use of transfusion for prevention of acute pain has increased in children and adults with SCD without a clear understanding of its benefits. RECENT FINDINGS Although it makes conceptual sense that red cell transfusions would prevent pain that arises from vaso-occlusion, we now know that the mechanism of pain is more complex than vaso-occlusion alone. Recent taxonomies recognize a chronic pain syndrome that is both common in adults with SCD and affects the presentation of acute pain. It is not known if acute pain on the background of chronic pain responds differently to sickle cell therapies, such as hydroxyurea and blood transfusion. SUMMARY In this review, we will examine the studies that have investigated whether red cell transfusions are efficacious for preventing pain. In the absence of high-quality data that specifically addresses this question, we will outline our approach, which might soon change with new drugs and curative therapies on the horizon.
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Carneiro-Proietti ABF, Kelly S, Miranda Teixeira C, Sabino EC, Alencar CS, Capuani L, Salomon Silva TP, Araujo A, Loureiro P, Máximo C, Lobo C, Flor-Park MV, Rodrigues DOW, Mota RA, Gonçalez TT, Hoppe C, Ferreira JE, Ozahata M, Page GP, Guo Y, Preiss LR, Brambilla D, Busch MP, Custer B. Clinical and genetic ancestry profile of a large multi-centre sickle cell disease cohort in Brazil. Br J Haematol 2018; 182:895-908. [PMID: 30027669 PMCID: PMC8019534 DOI: 10.1111/bjh.15462] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 04/14/2018] [Indexed: 12/31/2022]
Abstract
Approximately 3500 children with sickle cell disease (SCD) are born in Brazil each year, but the burden of SCD morbidity is not fully characterised. A large, multi-centre cohort was established to characterise clinical outcomes in the Brazilian SCD population and create the infrastructure to perform genotype-phenotype association studies. Eligible patients were randomly selected from participating sites and recruited at routine visits. A biorepository of blood samples was created and comprehensive demographic and clinical outcome data were entered in a centralized electronic database. Peripheral blood genome-wide single nucleotide polymorphism (SNP) genotyping was performed using a customized Transfusion Medicine (TM) Array. A total of 2795 participants at six Brazilian sites were enrolled between 2013 and 2015. The cohort included slight predominance of children <18 years (55·9%) and females (53·0%). Haemoglobin (Hb) SS was the most common SCD genotype (70·7%), followed by HbSC (23%), Sβ0 (3·0%) and Sβ+ (2·9%). SNP data from the TM Array were analysed to evaluate the genetic ancestry of the cohort and revealed significant admixture among the population. Demographics and clinical complications, stratified by age and SCD genotype, are summarized and future studies in this cohort are discussed.
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Affiliation(s)
| | - Shannon Kelly
- Blood Systems Research Institute, San Francisco, CA, USA
- BCHO - UCSF Benioff Children's Hospital Oakland, Oakland, CA, USA
| | | | | | | | | | | | | | | | | | | | - Miriam V Flor-Park
- Instituto da Criança, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Carolyn Hoppe
- BCHO - UCSF Benioff Children's Hospital Oakland, Oakland, CA, USA
| | | | | | - Grier P Page
- RTI - Research Triangle Institute International, Triangle Park, NC, USA
| | - Yuelong Guo
- RTI - Research Triangle Institute International, Triangle Park, NC, USA
| | - Liliana R Preiss
- RTI - Research Triangle Institute International, Triangle Park, NC, USA
| | - Donald Brambilla
- RTI - Research Triangle Institute International, Triangle Park, NC, USA
| | | | - Brian Custer
- Blood Systems Research Institute, San Francisco, CA, USA
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17
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da Cunha Gomes EG, Machado LAF, de Oliveira LC, Neto JFN. The erythrocyte alloimmunisation in patients with sickle cell anaemia: a systematic review. Transfus Med 2018; 29:149-161. [PMID: 29845661 DOI: 10.1111/tme.12543] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 05/03/2018] [Accepted: 05/07/2018] [Indexed: 12/13/2022]
Abstract
Transfusion therapy is a common practice in the treatment of anaemia and can cause erythrocyte alloimmunisation. To systematise data related to erythrocyte alloimmunisation in patients with sickle cell disease (SCD), a bibliographic search was carried out in September 2017 to search for studies in four electronic databases. (i) Referring to the original work, (ii) being cohort or case-control, (iii) having been developed with individuals with SCD and (iv) having evaluated the erythrocyte alloimmunisation. Two reviewers identified the articles for inclusion in the study, extracted the predetermined data and carried out the evaluation of the methodological quality of the work. 21 studies were selected; the studies included data on 20 636 individuals (children and adults), were mostly published in the last 10 years, were developed in the United States and had high methodological quality. The occurrence of erythrocyte alloimmunisation ranged from 4·4 to 76%, and there was a higher rate of alloimmunisation against antigens of the Rh system. The risk factors for alloimmunisation were age; gender (female); red blood cell (RBC) units received; presence of ≥1 autoantibodies, TNF-α, interleukin (IL1B), human leukocyte antigens (HLA)-DRB1 gene polymorphisms; first blood transfusion (BT) after 5 years of age, transfusion episodic, multiple or during inflammatory events, acute chest syndrome (ACS) and vase-occlusive crisis (VOC); increased percentage of CD41 T memory cells; and positive direct antiglobulin test. Transfusion policies should be developed to protect the patient and his or her health based on the main factors associated with its incidence.
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Affiliation(s)
- E G da Cunha Gomes
- Professional Master's in Health, Laboratory Medicine and Forensic Technology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - L A F Machado
- Professional Master's in Health, Laboratory Medicine and Forensic Technology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - L C de Oliveira
- Search Group NutriPali, Nutritionist Palliative Care Unit, National Cancer Institute José Alencar Gomes da Silva, Rio de Janeiro, Brazil
| | - J F N Neto
- Lipids Laboratory-LabLip, Faculty of Medical Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil
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18
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Al-Riyami AZ, Daar S. Transfusion in Haemoglobinopathies: Review and recommendations for local blood banks and transfusion services in Oman. Sultan Qaboos Univ Med J 2018; 18:e3-e12. [PMID: 29666675 DOI: 10.18295/squmj.2018.18.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/06/2017] [Accepted: 01/11/2017] [Indexed: 01/19/2023] Open
Abstract
Sickle cell disease and homozygous β-thalassaemia are common haemoglobinopathies in Oman, with many implications for local healthcare services. The transfusions of such patients take place in many hospitals throughout the country. Indications for blood transfusions require local recommendations and guidelines to ensure standardised levels of care. This article summarises existing transfusion guidelines for this group of patients and provides recommendations for blood banks and transfusion services in Oman. This information is especially pertinent to medical professionals and policy-makers developing required services for the standardised transfusion support of these patients.
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Affiliation(s)
- Arwa Z Al-Riyami
- Department of Haematology, Sultan Qaboos University Hospital, Muscat, Oman
| | - Shahina Daar
- Wallenberg Research Centre, Stellenbosch Institute for Advanced Study, Stellenbosch University, Stellenbosch, South Africa
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19
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Otrock ZK, Thibodeaux SR, Jackups R. Vascular access for red blood cell exchange. Transfusion 2018; 58 Suppl 1:569-579. [DOI: 10.1111/trf.14495] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Zaher K. Otrock
- Department of Pathology and Laboratory Medicine; Henry Ford Hospital; Detroit Michigan
| | - Suzanne R. Thibodeaux
- Department of Pathology and Immunology; Washington University School of Medicine; St. Louis Missouri
| | - Ronald Jackups
- Department of Pathology and Immunology; Washington University School of Medicine; St. Louis Missouri
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21
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Woods D, Hayashi RJ, Binkley MM, Sparks GW, Hulbert ML. Increased complications of chronic erythrocytapheresis compared with manual exchange transfusions in children and adolescents with sickle cell disease. Pediatr Blood Cancer 2017; 64. [PMID: 28544309 DOI: 10.1002/pbc.26635] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 03/30/2017] [Accepted: 04/14/2017] [Indexed: 11/09/2022]
Abstract
BACKGROUND Children and adolescents with sickle cell disease (SCD) are at high risk of strokes and are frequently treated with red blood cell (RBC) transfusions. The goal is to suppress hemoglobin (Hb) S while minimizing transfusion-induced iron overload. RBCs may be given via simple transfusion, manual exchange transfusion (MET), or erythrocytapheresis (aRBCX). Chronic transfusion practices vary among institutions. METHODS This single-institution, retrospective cohort study compares Hb S control and therapy complication rates between MET and aRBCX in a cohort of children and adolescents with SCD and stroke during a 5-year period from 2008 through 2012. Duration and mode of transfusion therapy, achievement of Hb S suppression goal, iron burden by ferritin levels, and catheter complications were evaluated. RESULTS Thirty-seven children were included in analysis. The prevalence of catheter complications was 75% in aRBCX recipients compared with 0% in MET recipients (P < 0.001). There was no significant difference between modalities in achieving Hb S suppression or ferritin goals, but those receiving aRBCX had a greater likelihood of discontinuing chelation therapy. Among aRBCX recipients, adherence to >90% of transfusion appointments was associated with achieving Hb S suppression goals. CONCLUSION aRBCX may have increased complication risks compared with MET for chronic transfusion therapy in SCD. Risks and benefits of aRBCX and MET should be considered when selecting a chronic transfusion modality. Transfusion therapy modalities should be compared in prospective studies for stroke prevention in children with SCD.
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Affiliation(s)
- Deborah Woods
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
| | - Robert J Hayashi
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
| | - Michael M Binkley
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri
| | | | - Monica L Hulbert
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
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22
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Brewin J, Kaya B, Chakravorty S. How I manage sickle cell patients with high transcranial doppler results. Br J Haematol 2017; 179:377-388. [DOI: 10.1111/bjh.14850] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- John Brewin
- Department of Haematology; King's College London; London UK
| | - Banu Kaya
- Department of Haematology; Royal London Hospital; London UK
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