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Padmanabhan A, Connelly-Smith L, Aqui N, Balogun RA, Klingel R, Meyer E, Pham HP, Schneiderman J, Witt V, Wu Y, Zantek ND, Dunbar NM, Schwartz GEJ. Guidelines on the Use of Therapeutic Apheresis in Clinical Practice - Evidence-Based Approach from the Writing Committee of the American Society for Apheresis: The Eighth Special Issue. J Clin Apher 2019; 34:171-354. [PMID: 31180581 DOI: 10.1002/jca.21705] [Citation(s) in RCA: 784] [Impact Index Per Article: 156.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The American Society for Apheresis (ASFA) Journal of Clinical Apheresis (JCA) Special Issue Writing Committee is charged with reviewing, updating and categorizing indications for the evidence-based use of therapeutic apheresis (TA) in human disease. Since the 2007 JCA Special Issue (Fourth Edition), the committee has incorporated systematic review and evidence-based approaches in the grading and categorization of apheresis indications. This Eighth Edition of the JCA Special Issue continues to maintain this methodology and rigor in order to make recommendations on the use of apheresis in a wide variety of diseases/conditions. The JCA Eighth Edition, like its predecessor, continues to apply the category and grading system definitions in fact sheets. The general layout and concept of a fact sheet that was introduced in the Fourth Edition, has largely been maintained in this edition. Each fact sheet succinctly summarizes the evidence for the use of TA in a specific disease entity or medical condition. The Eighth Edition comprises 84 fact sheets for relevant diseases and medical conditions, with 157 graded and categorized indications and/or TA modalities. The Eighth Edition of the JCA Special Issue seeks to continue to serve as a key resource that guides the utilization of TA in the treatment of human disease.
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Affiliation(s)
- Anand Padmanabhan
- Medical Sciences Institute & Blood Research Institute, Versiti & Department of Pathology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Laura Connelly-Smith
- Department of Medicine, Seattle Cancer Care Alliance & University of Washington, Seattle, Washington
| | - Nicole Aqui
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rasheed A Balogun
- Department of Medicine, University of Virginia, Charlottesville, Virginia
| | - Reinhard Klingel
- Apheresis Research Institute, Cologne, Germany & First Department of Internal Medicine, University of Mainz, Mainz, Germany
| | - Erin Meyer
- Department of Hematology/Oncology/BMT/Pathology, Nationwide Children's Hospital, Columbus, Ohio
| | - Huy P Pham
- Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Jennifer Schneiderman
- Department of Pediatric Hematology/Oncology/Neuro-oncology/Stem Cell Transplant, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University, Chicago, Illinois
| | - Volker Witt
- Department for Pediatrics, St. Anna Kinderspital, Medical University of Vienna, Vienna, Austria
| | - Yanyun Wu
- Bloodworks NW & Department of Laboratory Medicine, University of Washington, Seattle, Washington, Yale University School of Medicine, New Haven, Connecticut
| | - Nicole D Zantek
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - Nancy M Dunbar
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
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2
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Kumar RK, Heuchel M, Kratz K, Lendlein A, Jankowski J, Tetali SD. Effects of extracts prepared from modified porous poly(ether imide) microparticulate absorbers on cytotoxicity, macrophage differentiation and proinflammatory behavior of human monocytic (THP-1) cells. Clin Hemorheol Microcirc 2018; 69:175-185. [PMID: 29630537 DOI: 10.3233/ch-189112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Remaining uremic toxins in the blood of chronic renal failure patients represent one central challenge in hemodialysis therapies. Highly porous poly(ether imide) (PEI) microparticles have been recently introduced as candidate absorber materials, which show a high absorption capacity for uremic toxins and allow hydrophilic surface modification suitable for minimization of serum protein absorption. In this work, the effects of extracts prepared from PEI microparticles modified by nucleophilic reaction with low molecular weight polyethylene imine (Pei) or potassium hydroxide (KOH), on human monocytic (THP-1) cells are studied. The obtained results suggested that the extracts of Pei and KOH modified PEI absorbers have no negative effect on THP-1 cell viability and do not initiate the critical differentiation towards macrophages. The extracts did not enhance transcript or protein levels of investigated proinflammatory markers in THP-1 cells, namely, TNFμ, MCP1, IL6 and IL8. Based on these findings such modified PEI microparticles should be qualified for further pre-clinical evaluation i.e. in an in vivo animal experiment.
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Affiliation(s)
- Reddi K Kumar
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Matthias Heuchel
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Karl Kratz
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry, University of Potsdam, Potsdam, Germany
| | - Joachim Jankowski
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, University Hospital, Germany.,School of Cardiovascular Diseases (CARIM), University of Maastricht, Universiteitssingel, Maastricht, The Netherlands
| | - Sarada D Tetali
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, India
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3
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Schwartz J, Padmanabhan A, Aqui N, Balogun RA, Connelly-Smith L, Delaney M, Dunbar NM, Witt V, Wu Y, Shaz BH. Guidelines on the Use of Therapeutic Apheresis in Clinical Practice-Evidence-Based Approach from the Writing Committee of the American Society for Apheresis: The Seventh Special Issue. J Clin Apher 2017; 31:149-62. [PMID: 27322218 DOI: 10.1002/jca.21470] [Citation(s) in RCA: 276] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The American Society for Apheresis (ASFA) Journal of Clinical Apheresis (JCA) Special Issue Writing Committee is charged with reviewing, updating, and categorizing indications for the evidence-based use of therapeutic apheresis in human disease. Since the 2007 JCA Special Issue (Fourth Edition), the Committee has incorporated systematic review and evidence-based approaches in the grading and categorization of apheresis indications. This Seventh Edition of the JCA Special Issue continues to maintain this methodology and rigor to make recommendations on the use of apheresis in a wide variety of diseases/conditions. The JCA Seventh Edition, like its predecessor, has consistently applied the category and grading system definitions in the fact sheets. The general layout and concept of a fact sheet that was used since the fourth edition has largely been maintained in this edition. Each fact sheet succinctly summarizes the evidence for the use of therapeutic apheresis in a specific disease entity. The Seventh Edition discusses 87 fact sheets (14 new fact sheets since the Sixth Edition) for therapeutic apheresis diseases and medical conditions, with 179 indications, which are separately graded and categorized within the listed fact sheets. Several diseases that are Category IV which have been described in detail in previous editions and do not have significant new evidence since the last publication are summarized in a separate table. The Seventh Edition of the JCA Special Issue serves as a key resource that guides the utilization of therapeutic apheresis in the treatment of human disease. J. Clin. Apheresis 31:149-162, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Joseph Schwartz
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
| | - Anand Padmanabhan
- Blood Center of Wisconsin, Department of Pathology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Nicole Aqui
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rasheed A Balogun
- Division of Nephrology, University of Virginia, Charlottesville, Virginia
| | - Laura Connelly-Smith
- Department of Medicine, Seattle Cancer Care Alliance and University of Washington, Seattle, Washington
| | - Meghan Delaney
- Bloodworks Northwest, Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Nancy M Dunbar
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Volker Witt
- Department for Pediatrics, St. Anna Kinderspital, Medical University of Vienna, Vienna, Austria
| | - Yanyun Wu
- Bloodworks Northwest, Department of Laboratory Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Beth H Shaz
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York.,New York Blood Center, Department of Pathology.,Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
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4
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Linenberger ML, Price TH. Use of Cellular and Plasma Apheresis in the Critically Ill Patient: Part II: Clinical Indications and Applications. J Intensive Care Med 2016; 20:88-103. [PMID: 15855221 DOI: 10.1177/0885066604273479] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Apheresis is the process of separating the blood and removing or manipulating a cellular or plasma component for therapeutic benefit. Such procedures may be indicated in the critical care setting as primary or adjunctive therapy for certain hematologic, neurologic, renal, and autoimmune/rheumatologic disorders. In part I of this series, the technical aspects of apheresis were described and the physiologic rationale and clinical considerations were discussed. This review highlights the pathophysiologic basis, specific clinical indications, and treatment parameters for disorders that more commonly require management in the intensive care unit. The choice of plasma or cellular apheresis in these cases is guided by wellaccepted, evidence-based clinical treatment guidelines. For some disorders, such as liver failure, severe sepsis, and multiple-organ dysfunction syndrome, apheresis treatment approaches remain experimental. Ongoing studies are investigating the potential utility of conventional plasma exchange, ex vivo plasma manipulation, and newer technologies for these and other disorders in severely ill patients.
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Affiliation(s)
- Michael L Linenberger
- Apheresis and Cellular Therapy, Seattle Cancer Care Alliance, Seattle, WA 98109, USA.
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5
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Acute Disseminated Encephalomyelitis. J Clin Apher 2016; 31:163-202. [PMID: 27322219 DOI: 10.1002/jca.21474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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6
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Connelly-Smith LS, Linenberger ML. Therapeutic Apheresis for Patients with Cancer. Cancer Control 2015; 22:60-78. [DOI: 10.1177/107327481502200109] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Laura S. Connelly-Smith
- Seattle Cancer Care Alliance, School of Medicine, University of Washington, Seattle, Washington
- Division of Hematology, School of Medicine, University of Washington, Seattle, Washington
| | - Michael L. Linenberger
- Seattle Cancer Care Alliance, School of Medicine, University of Washington, Seattle, Washington
- Division of Hematology, School of Medicine, University of Washington, Seattle, Washington
- Fred Hutchinson Cancer Research Center, Seattle, Washington
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7
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Winters JL. American Society for Apheresis guidelines on the use of apheresis in clinical practice: practical, concise, evidence-based recommendations for the apheresis practitioner. J Clin Apher 2014; 29:191-3. [PMID: 24890667 DOI: 10.1002/jca.21334] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 05/20/2014] [Indexed: 12/24/2022]
Abstract
The 6th Guidelines on the use of therapeutic apheresis in clinical practice published by the American Society of Apheresis provide practical, concise, and evidence based guidance for the apheresis medicine practitioner. The overall format of the Guidelines has remained unchanged with the 6th edition, compared to the 5th edition, with enhancements in the committee process of creating the guidelines. Because of changes in the writing committee structure, a number of changes have occurred in the ASFA category and recommendation grade for the use of apheresis in the treatment for a number of previously categorized clinical indications. In addition, eight new indications for apheresis, twenty three new clinical situations for previously categorized diseases, and ten new apheresis treatments for previously categorized disorders have been added. The 6th Guidelines continue to be an invaluable resource for those involved in apheresis medicine.
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Affiliation(s)
- Jeffrey L Winters
- Division of Transfusion Medicine, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
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8
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Emori M, Takebayashi T, Imoto K, Ueno S, Mizuno S, Yamashita T. Spinal surgery in a patient with essential thrombocythemia resulting in leg paraplegia: a case report. Spine J 2013; 13:e7-10. [PMID: 24035729 DOI: 10.1016/j.spinee.2013.06.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 10/06/2012] [Accepted: 06/01/2013] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Essential thrombocythemia (ET) is a chronic myeloproliferative disorder characterized by a relatively benign clinical course that may be complicated by conflicting thrombosis and bleeding. Postoperative spinal epidural hematoma is an uncommon, but well-known, complication after spinal surgery. PURPOSE To describe a patient with ET who underwent surgery for lumbar spinal canal stenosis resulting in leg paraplegia and discuss the perioperative management for ET. STUDY DESIGN Case report. RESULTS The patient with ET underwent laminoplasty and posterolateral fusion for degenerative spondylolisthesis and spinal stenosis at L4-L5. A hematoma was observed in the epidural cavity after surgery, and emergency surgical evacuation was performed. After revision surgery, bleeding from the wound continued for 2 months, despite transfusions of platelets and coagulation factors, and right unilateral leg paralysis developed. CONCLUSIONS This case presentation increases the awareness of this disorder to the spinal community and the need to establish guidelines for the perioperative management of patients who require surgery in similar settings.
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Affiliation(s)
- Makoto Emori
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, West 16, South 1, Chuo-ku, Sapporo 060-8543, Japan.
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9
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Das SS, Bhattacharya S, Sen S. Managing uncontrolled postsplenectomy reactive thrombocytosis in idiopathic thrombocytopenic purpura: Role of thrombocytapheresis. Transfus Apher Sci 2013; 49:171-3. [DOI: 10.1016/j.transci.2012.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 09/19/2012] [Indexed: 10/26/2022]
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10
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Thrombocytosis and Essential Thrombocythemia. Platelets 2013. [DOI: 10.1016/b978-0-12-387837-3.00049-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Kadikoylu G, Yavasoglu I, Ozkul A, Akyol A, Yukselen V, Guney E, Bolaman Z. The single center registry for therapeutic apheresis in Turkey: 11-year activity. Transfus Apher Sci 2012; 47:61-5. [DOI: 10.1016/j.transci.2012.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Safdar A, Armstrong D. Infections in patients with hematologic neoplasms and hematopoietic stem cell transplantation: neutropenia, humoral, and splenic defects. Clin Infect Dis 2011; 53:798-806. [PMID: 21890754 DOI: 10.1093/cid/cir492] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Infections are common in patients with hematologic neoplasms and following allogeneic hematopoietic transplantation. Neutropenia and defects in adaptive B-cell-mediated immunity and/or lack of splenic function predispose patients to a host of diverse and often serious infections. It is important to recognize that patients who undergo treatment for hematologic neoplasms may have mixed immune defects, and their vulnerability to infection may continue to change, in part as a reflection of the dynamic developments in the practice of oncology. The main obstacle in providing targeted, evidence-based antimicrobial treatment is the unpredictable results of even the new generation of diagnostic assays. A definite diagnosis for most end-organ opportunistic diseases requires tissue samples that are seldom available. Because immune defects may coexist, empirical therapy is directed toward a wide spectrum of pathogens. Real-time information about innate and adaptive immune functions and the role of acute and chronic phase molecules may improve target-specific therapy.
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Affiliation(s)
- Amar Safdar
- New York University Langone Medical Center, Memorial Sloan Kettering Cancer Center, New York, USA.
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13
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Winters JL. Apheresis medicine state of the art in 2010: American Society for Apheresis fifth special edition of the Journal of Clinical Apheresis. J Clin Apher 2011; 26:239-42. [DOI: 10.1002/jca.20307] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Accepted: 07/12/2011] [Indexed: 12/18/2022]
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14
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Thrombocytapheresis: Managing Essential Thrombocythemia in a Surgical Patient. Ann Thorac Surg 2011; 92:e5-6. [DOI: 10.1016/j.athoracsur.2011.02.050] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 02/12/2011] [Accepted: 02/16/2011] [Indexed: 11/22/2022]
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Szczepiorkowski ZM, Winters JL, Bandarenko N, Kim HC, Linenberger ML, Marques MB, Sarode R, Schwartz J, Weinstein R, Shaz BH. Guidelines on the use of therapeutic apheresis in clinical practice--evidence-based approach from the Apheresis Applications Committee of the American Society for Apheresis. J Clin Apher 2010; 25:83-177. [PMID: 20568098 DOI: 10.1002/jca.20240] [Citation(s) in RCA: 352] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The American Society for Apheresis (ASFA) Apheresis Applications Committee is charged with a review and categorization of indications for therapeutic apheresis. Beginning with the 2007 ASFA Special Issue (fourth edition), the subcommittee has incorporated systematic review and evidence-based approach in the grading and categorization of indications. This Fifth ASFA Special Issue has further improved the process of using evidence-based medicine in the recommendations by refining the category definitions and by adding a grade of recommendation based on widely accepted GRADE system. The concept of a fact sheet was introduced in the Fourth edition and is only slightly modified in this current edition. The fact sheet succinctly summarizes the evidence for the use of therapeutic apheresis. The article consists of 59 fact sheets devoted to each disease entity currently categorized by the ASFA as category I through III. Category IV indications are also listed.
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Affiliation(s)
- Zbigniew M Szczepiorkowski
- Transfusion Medicine Service, Department of Pathology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire 03756, USA.
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16
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Cerdas-Quesada C. A life-threatening case of autoimmune hemolytic anemia successfully treated by plasma-exchange. Transfus Apher Sci 2010; 42:235-7. [DOI: 10.1016/j.transci.2010.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Cerdas-Quesada C. Plasma exchange for Goodpasture syndrome. Transfus Apher Sci 2010; 42:115-6. [PMID: 20117054 DOI: 10.1016/j.transci.2010.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Revised: 10/23/2009] [Indexed: 11/16/2022]
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18
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Dana AN. Diagnosis and treatment of tick infestation and tick-borne diseases with cutaneous manifestations. Dermatol Ther 2009; 22:293-326. [PMID: 19580576 DOI: 10.1111/j.1529-8019.2009.01244.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hard and soft ticks may be associated directly or indirectly with a number of dermatoses, both infectious and inflammatory in origin. Morbidity may occur as a result of tick bites, tick toxicosis, and even infestation. These arthropod vectors may transmit life-threatening protozoan, bacterial, rickettsial, and viral diseases with systemic and cutaneous findings. Additionally, ticks may transmit more than one pathogen with subsequent human coinfection. This article reviews the presentation of tick-borne illnesses and the medical management of these diseases. Among others, diseases such as ehrlichiosis, anaplasmosis, babesiosis, tularemia, borrelioses, tick-borne encephalitides, rickettsial spotted fevers, and tick typhus are discussed in this article. The recognition of skin manifestations associated with these diseases is paramount to early diagnosis and treatment initiation.
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Affiliation(s)
- Ali N Dana
- Department of Dermatology, Johns Hopkins University, Baltimore, Maryland, USA.
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Yavasoglu I, Kadikoylu G, Akyol A, Bolaman Z. Therapeutic apheresis: Results from a single center in Turkey. Transfus Apher Sci 2007; 36:249-53. [PMID: 17556022 DOI: 10.1016/j.transci.2007.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2006] [Revised: 01/12/2007] [Accepted: 02/12/2007] [Indexed: 11/30/2022]
Abstract
BACKGROUND Therapeutic apheresis (TA) is carried out for a broad spectrum of diseases and syndromes. AIM We retrospectively evaluated the results of therapeutic apheresis (TA) including plasma exchange, therapeutic plateletpheresis, and leukapheresis during 2000-2006. METHODS A total of 195 procedures were performed in 44 patients (25 male and 19 female, with a mean age of 52+/-15 years). These procedures consist of 165 plasma exchanges, 20 therapeutic plateletpheresis, and 10 leukapheresis. The most common indications were hematological, neurological, and metabolic diseases. Eighty-three percent of plasma exchange, 100% of plateletpheresis and leukapheresis belonged to indication Category I or II, according to the guidelines of the American Society for Apheresis. RESULTS While hemoglobin levels significantly increased (p<0.05), platelet counts decreased (p<0.005) after plasma exchange. Hematological parameters did not statistically change significantly with leukapheresis (p>0.05). Platelet counts significantly decreased with plateletpheresis (p<0.001). Total complications were detected in 21% of the procedures. Adverse events (AE) were seen in 17% of the procedures. None of the patients died (Grade-IV) from any complication. AEs occurred in 14% (Grade-I), 1% (Grade-II), and 2% (Grade-III) of the procedures. The most common AEs were nausea/vomiting, hypotension, and abdominal pain. CONCLUSION TA, an important procedure in Transfusion Medicine, is safely carried out in our center in several hematological, neurological, and metabolic diseases which are similar to previous reports.
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Affiliation(s)
- Irfan Yavasoglu
- Adnan Menderes University Medical Faculty, Divisions of Hematology, 09100 Aydin, Turkey.
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20
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Rombout-Sestrienkova E, van Noord PAH, van Deursen CTBM, Sybesma BJPH, Nillesen-Meertens AEL, Koek GH. Therapeutic erythrocytapheresis versus phlebotomy in the initial treatment of hereditary hemochromatosis – A pilot study. Transfus Apher Sci 2007; 36:261-7. [PMID: 17569592 DOI: 10.1016/j.transci.2007.03.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2007] [Accepted: 03/20/2007] [Indexed: 11/16/2022]
Abstract
Hereditary Hemochromatosis (HH) is a genetic disorder of iron metabolism, resulting in excessive iron overload. Currently, phlebotomy is the standard effective treatment that prevents progression of tissue damage. Aim of the therapy is to reach ferritin levels between 20 and 50mugl(-1). In patients with total iron stores of more than 30g, intensive treatment by means of weekly phlebotomies during 2-3 years is required to reach this aim. More recently mechanical removal of erythrocytes through therapeutic erythrocytapheresis (TE) has become a new therapeutic modality. By means of TE, up to 1000ml erythrocytes per session can be removed, depending on patient characteristics, compared to 250ml erythrocytes per phlebotomy. Thus, TE potentially offers a more efficient method of removing iron overload with less procedures in a shorter treatment period. In a pilot study between 2002 and 2005, results from a group of HH patients treated with TE (N=6) were compared to the results of a historical control group of HH patients (N=6) treated with phlebotomy. The results showed a reduction of almost 70% in both the total number and the duration of treatments in the TE group. Although, the procedure costs compared on the basis of a single TE session were higher, the total costs for the whole treatment were comparable or cheaper with the use of TE. Future prospective studies are needed to compare both therapies in a randomized setting.
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Affiliation(s)
- Eva Rombout-Sestrienkova
- Sanquin Blood Bank Southeast Region, Geatano Martinolaan 95, 6229 GS Maastricht, The Netherlands.
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21
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Szczepiorkowski ZM, Bandarenko N, Kim HC, Linenberger ML, Marques MB, Sarode R, Schwartz J, Shaz BH, Weinstein R, Wirk A, Winters JL. Guidelines on the use of therapeutic apheresis in clinical practice—Evidence-based approach from the apheresis applications committee of the American society for apheresis. J Clin Apher 2007; 22:106-75. [PMID: 17394188 DOI: 10.1002/jca.20129] [Citation(s) in RCA: 189] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The American Society for Apheresis (ASFA) Apheresis Applications Committee is charged with a review and categorization of indications for therapeutic apheresis. This elaborate process had been undertaken every 7 years resulting in three prior publications in 1986, 1993, and 2000 of "The ASFA Special Issues." This article is the integral part of the Fourth ASFA Special Issue. The Fourth ASFA Special Issue is significantly modified in comparison to the previous editions. A new concept of a fact sheet has been introduced. The fact sheet succinctly summarizes the evidence for the use of therapeutic apheresis. A detailed description of the fact sheet is provided. The article consists of 53 fact sheets devoted to each disease entity currently categorized by the ASFA. Categories I, II, and III are defined as previously in the Third Special Issue. However, a few new therapeutic apheresis modalities, not yet approved in the United States or are currently in clinical trials, have been assigned category P (pending) by the ASFA Clinical Categories Subcommittee. The diseases assigned to category IV are discussed in a separate article in this issue.
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Affiliation(s)
- Zbigniew M Szczepiorkowski
- Transfusion Medicine Service, Department of Pathology, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03756, USA.
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22
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Tefferi A. Thrombocytosis and Essential Thrombocythemia. Platelets 2007. [DOI: 10.1016/b978-012369367-9/50818-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hay SN, Egan JA, Millward PA, Bandarenko N, Brecher ME. Patterns of platelet response in idiopathic TTP/HUS: frequency of declining platelet counts with plasma exchange and the recognition and significance of a pseudo refractory state. Ther Apher Dial 2006; 10:237-41. [PMID: 16817787 DOI: 10.1111/j.1744-9987.2006.00368.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
For thrombotic thrombocytopenic purpura (TTP), daily plasma exchange (TPE) is typically discontinued when the platelet count normalizes (>150 x 10(9)/L). We observed a decline in platelet count during TPE and in patients who appeared pseudo-refractory because of a platelet count plateau (100-150 10(9)/L range). In the present study, we evaluated platelet count trends in TTP patients. Retrospective review of TTP patients from 01/1999 to 12/2004 was completed. Patients were categorized based on platelet count trends: Group I, counts rose then decreased to levels <100 x 10(9)/L; Group II, counts declined following TPE initiation; Group III, counts rose continuously; Group IV, counts decreased after the count was >100 x 10(9)/L. Additionally, we identified pseudo-refractory patients caused by a platelet count plateau (>100 x 10(9)/L but <150 x 10(9)/L). We identified 60 TTP patients. Within Group I (17 patients/17 series/19.1% of total), the mean decrease in platelet count was 67.3% +/- 22.1% following initial rise. Within Group II (24 patients/25 series/28.1% of total), the mean decrease was 28% +/- 5.3% following presentation. Group III included 31 patients/39 series (43.8% of the total). Within Group IV (seven patients/eight series/9.0% of total), the mean decrease was 17.4% +/- 12.6% following a sustained rise >100 x 10(9)/L. With a declining platelet count and daily TPE, it is generally sufficient to stay the course and the decline will reverse. Our limited experience with pseudo-refractory patients supports discontinuing TPE when counts plateau between 100 and 150 x 10(9)/L when a therapy goal is a platelet count of 150 x 10(9)/L. Recognition of this pseudo-refractory state can minimize the risks of prolonged TPE and the risks of adjunct interventions.
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Affiliation(s)
- Shauna N Hay
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27514, USA
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Yavasoglu I, Kadikoylu G, Bolaman Z. Recovery of splenic infarction with anti-platelet treatments and platelet-apheresis in polycythemia vera. Transfus Apher Sci 2006; 34:199-202. [PMID: 16504586 DOI: 10.1016/j.transci.2005.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2005] [Accepted: 12/27/2005] [Indexed: 01/12/2023]
Abstract
Thrombo-embolic events in coronary and peripheral arteries, and cerebral, pulmonary, portal, hepatic, and deep veins are seen in 27-45% of patients with polycythemia vera (PV). A 79-year-old man was admitted with complaints of pruritus increasing after bath and left upper abdominal pain radiating to left shoulder for two months. On physical examination, ruddy and hyperemic appearances of his face and conjunctiva, tenderness on the left upper quadrant, and splenomegaly were noted. Hemoglobin level was 16.6g/dl, hematocrit 53.8%, white blood cell count 26x10(9)/l, and platelet count 1.032x10(9)/l. Bone marrow aspiration and biopsy revealed hypercellularity, megakaryocytic hyperplasia and dysplasia. The leukocyte alkaline phosphatase score was 190. The levels of serum vitamin B12 and D-dimer were 316 pg/ml and 744 ng/ml, respectively. Arterial O2 saturation was 96%. Red cell mass was measured as 43 ml/kg using radionuclide 51Cr labelled erythrocyte scintigraphy. On cytogenetic analysis, deletion of 20q was found. Computed tomography of whole abdomen showed diffuse splenomegaly and two hypodense areas indicating splenic infarction in 2.5x2 and 3.5x3 cm diameters in subcapsular localization of the spleen. The patient was treated with therapeutic platelet-apheresis, 40 mg/day aspirin, analgesic drugs, and 3g/day hydroxyurea. After 1.5 months, platelet counts dropped to less than 500x10(9)/l and splenic infarcts were not detected on computed tomography. Splenic infarction may be the first evidence of thrombosis in PV. The reduction of platelet counts with platelet-apheresis, anti-platelet drugs, and careful clinical observation may be satisfactory in the treatment of splenic infarction.
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Affiliation(s)
- Irfan Yavasoglu
- Adnan Menderes University Medical Faculty, Division of Hematology, Aydin, Turkey.
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25
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Miceli MH, Dong L, Grazziutti ML, Fassas A, Thertulien R, Van Rhee F, Barlogie B, Anaissie EJ. Iron overload is a major risk factor for severe infection after autologous stem cell transplantation: a study of 367 myeloma patients. Bone Marrow Transplant 2006; 37:857-64. [PMID: 16532017 DOI: 10.1038/sj.bmt.1705340] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We evaluated the risk factors for infection of 367 consecutive myeloma patients who underwent high-dose melphalan and autologous stem cell transplantation (ASCT). Examination of bone marrow iron stores (BMIS) prior to ASCT was used to evaluate body iron stores. Other variables included age, sex, active smoking, myeloma remission status, severity of mucositis and duration of severe neutropenia post-ASCT (<100 absolute neutrophils counts (ANC)/microl). Median age was 56 years; 61% of patients were males. 140 episodes of severe infections occurred in 116 patients, including bacteremia (73), pneumonia (40), severe colitis (25) and bacteremia with septic shock (two). The infection incidence per 1,000 days at risk was 45.2. Pre-ASCT risk factors for severe infection by univariate analysis were increased BMIS (OR=2.686; 95% CI 1.707-4.226; P<0.0001), smoking (OR=1.565; 95% CI 1.005-2.437; P=0.0474) and male gender (OR=1.624; 95% CI 1.019-2.589; P=0.0414). Increased BMIS (OR=2.716; 95% CI 1.720-4.287; P<0.0001) and smoking (OR=1.714; 95% CI 1.081-2.718; P=0.022) remained significant by multivariate analysis. Duration of ANC <100 micro/l (OR=1.129; 95% CI 1.039-1.226; P=0.0069 and OR=1.127; 95% CI 1.038-1.224; P=0.0045 by both univariate and multivariate analysis, respectively) was the only post-ASCT risk factor for infection. Increased pre-transplant BMIS and smoking are significant predictors of severe infection after myeloablative chemotherapy followed by ASCT in myeloma patients.
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Affiliation(s)
- M H Miceli
- Myeloma Institute for Research and Therapy, The University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
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26
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Branco I. Therapeutic cytapheresis – State of the art. Transfus Apher Sci 2006. [DOI: 10.1016/j.transci.2005.09.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Borberg H. Quo vadis haemapheresis. Current developments in haemapheresis. Transfus Apher Sci 2006; 34:51-73. [PMID: 16412691 DOI: 10.1016/j.transci.2005.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2005] [Accepted: 11/08/2005] [Indexed: 01/13/2023]
Abstract
The techniques of haemapheresis originated in the development of centrifugal devices separating cells from plasma and later on plasma from cells. Subsequently membrane filtration was developed allowing for plasma-cell separation. The unspecificity of therapeutic plasma exchange led to the development of secondary plasma separation technologies being specific, semi-selective or selective such as adsorption, filtration or precipitation. In contrast on-line differential separation of cells is still under development. Whereas erythrocytapheresis, granulocytapheresis, lymphocytapheresis and stem cell apheresis are technically advanced, monocytapheresis may need further improvement. Also, indications such as erythrocytapheresis for the treatment of polycythaemia vera or photopheresis though being clinically effective and of considerable importance for an appropriate disease control are to some extent under debate as being either too costly or without sufficient understanding of the mechanism. Other forms of cell therapy are under development. Rheohaemapheresis as the most advanced technology of extracorporeal haemorheotherapy is a rapidly developing approach contributing to the treatment of microcirculatory diseases and tissue repair. Whereas the control of a considerable number of (auto-) antibody mediated diseases is beyond discussion, the indication of apheresis therapy for immune complex mediated diseases is quite often still under debate. Detoxification for artificial liver support advanced considerably during the last years, whereas conclusions on the efficacy of septicaemia treatment are debatable indeed. LDL-apheresis initiated in 1981 as immune apheresis is well established since 24 years, other semi-selective or unspecific procedures, allowing for the elimination of LDL-cholesterol among other plasma components are also being used. Correspondingly Lp(a) apheresis is available as a specific, highly efficient elimination procedure superior to techniques which also eliminate Lp(a). Quality control systems, more economical technologies as for instance by increasing automation, influencing the over-interpretation of evidence based medicine especially in patients with rare diseases without treatment alternative, more insight into the need of controlled clinical trials or alternatively improved diagnostic procedures are among others tools ways to expand the application of haemapheresis so far applied in cardiology, dermatology, haematology, immunology, nephrology, neurology, ophthalmology, otology, paediatrics, rheumatology, surgery and transfusion medicine.
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Affiliation(s)
- Helmut Borberg
- German Haemapheresis Centre, Deutsches Haemapherese Zentrum, Maarweg 165, D-50 825 Köln, Germany.
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Abstract
Photopheresis has become a key component in the therapeutic armamentarium of cutaneous T-cell lymphoma, graft-versus-host disease following stem cell transplant, and allograft rejection of solid organs such as heart. Although it is considered a new treatment modality in its present form, the field of phototherapy dates back thousands of years. In this review, the reader will learn more about the history of photopheresis and how it became a therapeutic alternative for patients with solid organ transplants. An extensive literature search will highlight the evidence-based benefits of photopheresis (or lack thereof). A discussion of the mechanism of action of photopheresis and the technical aspects of the procedure will also be covered. Since photopheresis may be the best tolerated form of immunomodulation, current promising, albeit preliminary data on its efficacy warrant further investigation and understanding.
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Affiliation(s)
- Marisa B Marques
- Department of Pathology, Division of Laboratory Medicine, University of Alabama at Birmingham, 35249, USA.
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Abstract
Despite decades of clinical and laboratory research, relatively little has been accomplished concerning the pathogenesis as well as the identification of risk factors for thrombosis and bleeding in myeloproliferative disorders. In polycythaemia vera, the pro-thrombotic effect of an elevated haematocrit is well established. In contrast, thrombocytosis per se has not been similarly incriminated in essential thrombocythaemia. In both conditions, advanced age and the presence of a prior event identify thrombosis-prone patients. There is increasing evidence to suggest an additional role by leucocytes that might partly explain the antithrombotic effects of myelosuppressive therapy. A substantial minority of affected patients display reduced levels of high molecular weight von Willebrand protein in the plasma during extreme thrombocytosis and it is believed that this might explain the bleeding diathesis of such patients. Recent controlled studies support the therapeutic value of hydroxyurea and aspirin in essential thrombocythaemia and polycythaemia vera, respectively. The current communication will address the incidence, phenotype, pathogenesis, risk factors, prevention, and treatment of both thrombosis and haemorrhage in these disorders.
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Affiliation(s)
- M A Elliott
- Division of Hematology, Mayo Clinic, Rochester, MN 55905, USA.
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30
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Loren AW, Abrams CS. Efficacy of HPA-1a (PlA1)-negative platelets in a patient with post-transfusion purpura. Am J Hematol 2004; 76:258-62. [PMID: 15224362 DOI: 10.1002/ajh.20093] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Post-transfusion purpura (PTP) is a rare form of alloimmune thrombocytopenia that is self-limited but which carries a 10-15% mortality related to fatal hemorrhage. Immunomodulatory therapies such as plasmapheresis and intravenous immunoglobulin G (IVIg) can shorten the duration of thrombocytopenia. However, in a bleeding patient with PTP, more urgent therapy may be required. Textbooks of hematology [1-3] as well as reports in the literature [4,5] suggest that patients do not respond to platelet transfusions. We report a case of PTP in a patient homozygous for HPA-1b who suffered an intracranial hemorrhage. The patient was treated with IVIg and plasmapheresis. Because of her life-threatening bleeding, we also transfused the patient with HPA-1a-negative platelets. These transfusions consistently resulted in transient improvements in her platelet counts and may have limited the degree of intracranial bleeding. Our experience suggests that transfusion of platelets that lack the offending epitope in patients with PTP may be efficacious.
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Affiliation(s)
- Alison Wakoff Loren
- Department of Medicine, Division of Hematology/Oncology, University of Pennsylvania Health System, 16 Penn Tower, 3400 Spruce Street, Philadelphia, PA 19104, USA.
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31
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Abstract
PURPOSE OF REVIEW This review examines the literature published on therapeutic plasma exchange during 2002. The review was performed by searching Medline for pertinent articles. RECENT FINDINGS One hundred thirty articles were identified, of which 11 are reviewed. During the period, reviews of the use of therapeutic plasma exchange for managing Guillain-Barré syndrome and myasthenia gravis were published. A large randomized trial of the use of plasma exchange to treat sepsis also appeared. Finally, a large case series of the use of plasma exchange in Wegener granulomatosis was published. SUMMARY The literature confirms the use of plasma exchange for Guillain-Barré syndrome but suggests that inadequate evidence exists to support its use for long-term improvement in myasthenia gravis. The study of patients with severe sepsis suggests that plasma exchange may benefit a subset of patients, those with abdominal infections. Finally, plasma exchange for Wegener granulomatosis with severe renal dysfunction appears not to offer any benefit over immunosuppressive therapy.
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Affiliation(s)
- J L Winters
- Laboratory Medicine and Pathology, Mayo Medical School and Division of Tranfusion Medicine, Mayo Clinic and Mayo foundation, Rochester, Minnesota 55905, USA
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32
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Abstract
In a survey of therapeutic hemapheresis in Norway, we sent a questionnaire to all regional and central hospitals, asking about hemapheresis activities, patients, indications, and adverse events. All units responded to the questionnaire: 17 dialysis units, 7 blood units, and 2 specialized units for stem cell apheresis. In total, they performed 2141 procedures that is 5.0 stem cell collections and 42.5 therapeutic apheresis procedures per 100,000 inhabitants. The most frequent indications were Guillain-Barré syndrome, hypercholesterolemia, and myasthenia gravis. Adverse effects were frequent, but mild. Dialysis units performed a majority of the procedures, leading to an extensive use of filtration techniques.
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Abstract
This review is derived from a memorial lecture honoring Dr. Francis Morrison, a former President of the American Society For Apheresis (ASFA). The author had numerous professional contacts with Dr. Morrison through ASFA in the early 1990s, having served with him on the Board of Directors and followed him as President, and also came to know him well on a personal level. Professionally, Dr. Morrison stood out as a courtly gentleman with a marvelous baritone voice whose ability to facilitate organization contributed to a growing sense of dignity and purpose in the affairs of the society. On the personal side, however, there wasn't an ounce of pretension in him. He was accessible and down-to-earth; a genuine character with an active and appealing sense of humor. Not surprisingly, he seemed to have a wealth of insight and "common sense," and since the topic of this study is a kind of common sense approach to assessing the effectiveness of therapeutic apheresis, it seems a fitting way to honor his memory.
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Affiliation(s)
- Bruce C McLeod
- Rush Medical College and Rush Presbyterian St Luke's Medical Center, Chicago, Illinois 60612, USA.
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34
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Affiliation(s)
- Susan D Roseff
- Department of Pathology, Virginia Commonwealth University School of Medicine, Richmond, Virginia 23298-0662, USA.
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35
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Affiliation(s)
- William D Binder
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
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36
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Simón JA, Lazo-Langner A, Duarte-Rojo A, Velázquez-González A, Sánchez-Guerrero SA, Sánchez-Guerrero J. Serum hyperviscosity syndrome responding to therapeutic plasmapheresis in a patient with primary Sjögren's syndrome. J Clin Apher 2002; 17:44-6. [PMID: 11948706 DOI: 10.1002/jca.10018] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hyperviscosity syndrome is a disorder first described in patients with Waldenström's macroglobulinemia and is not commonly seen in rheumatic diseases. Its association with Sjögren's syndrome is very rare and it has been reported in very few patients. We report the case of a patient with primary Sjögren's syndrome presenting as hyperviscosity syndrome who was successfully treated with therapeutic plasma exchange.
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Affiliation(s)
- J Abraham Simón
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15, Tlalpan 14000, Mexico City, DF, Mexico
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37
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Greist A. The role of blood component removal in essential and reactive thrombocytosis. THERAPEUTIC APHERESIS : OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY FOR APHERESIS AND THE JAPANESE SOCIETY FOR APHERESIS 2002; 6:36-44. [PMID: 11886575 DOI: 10.1046/j.1526-0968.2002.00394.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
An elevated platelet count is now a common finding in both hospitalized and ambulatory patients with the advent of automated complete blood cell counters. Clinicians may be called upon to make a distinction between a reactive process and a primary hematologic disorder as the cause of a thrombocytosis and to determine whether treatment is indicated. Essential thrombocythemia and other myeloproliferative disorders may present with marked increases in the platelet counts and may be associated with thrombohemorrhagic complications. Reactive thrombocytosis can be caused by iron deficiency and a variety of inflammatory conditions, infections, malignancy, bleeding or hemolysis, splenectomy, and drugs. Acute therapy for all of these disorders has included blood component removal, specifically plateletpheresis. The role of plateletpheresis in current management of thrombocytosis is considered, based on current knowledge of pathophysiology and a review of the literature.
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Affiliation(s)
- Anne Greist
- Indiana Hemophilia and Thrombosis Center, Indianapolis, Indiana 46202, USA
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38
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Young NS. Immunosuppressive treatment of acquired aplastic anemia and immune-mediated bone marrow failure syndromes. Int J Hematol 2002; 75:129-40. [PMID: 11939258 DOI: 10.1007/bf02982017] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Modern therapeutic strategies for the treatment of acquired aplastic anemia are based on the current understanding of its pathophysiology as well as empiric observations. Most cases of aplastic anemia appear to be the result of immune-mediated destruction of hematopoietic cells, which can be approached by stem cell transplantation in younger patients with appropriate histocompatible donors or by immunosuppression to reduce T-cell activity. Popular treatment regimens combine antithymocyte globulin with cyclosporine. Although a majority of patients respond with improved blood counts and achieve transfusion-independence, late clonal complications of myelodysplasia and cytogenetic abnormalities occur in a substantial minority of cases. Additionally, there is no clear algorithm for the treatment of refractory disease. Newer methods of treatment, including high-dose cyclophosphamide and the development of potentially tolerizing combinations of drugs. are under study. Effective therapies for aplastic anemia might also be applied to other T-cell mediated, organ-specific human diseases.
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Affiliation(s)
- Neal S Young
- Hematology Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda. MD 20892-1652, USA
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39
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Danielson CFM. The role of red blood cell exchange transfusion in the treatment and prevention of complications of sickle cell disease. THERAPEUTIC APHERESIS : OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY FOR APHERESIS AND THE JAPANESE SOCIETY FOR APHERESIS 2002; 6:24-31. [PMID: 11886573 DOI: 10.1046/j.1526-0968.2002.00396.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Patients with sickle cell disease have abnormal red blood cells (RBCs). This can cause chronic hemolytic anemia and vaso-occlusion leading to tissue hypoxemia and organ dysfunction. RBC exchange transfusion can, without increasing the whole-blood viscosity, quickly replace abnormal erythrocytes with normal and raise the hematocrit resulting in improved delivery of oxygen to hypoxic tissues. Unfortunately, transfusion can also be associated with complications. This paper reviews the role of transfusion, both simple and exchange, in the treatment and prevention of sickle-related complications. The benefits of exchange versus simple transfusion and transfusion versus alternative therapies are discussed.
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40
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Abstract
Treatment of autoimmune hemolytic anemias varies depending on whether the patient has autoimmune hemolytic anemia of warm antibody type, cold agglutinin syndrome, paroxysmal cold hemoglobinuria, or autoimmune hemolytic anemia secondary to an underlying disorder. Initial therapy for warm antibody autoimmune hemolytic anemia should be corticosteroids, such as prednisone at conventional doses of 1 to 1.5 mg/kg/d orally. Criteria must be established to determine whether the therapeutic response is adequate, because long-term therapy may lead to significant detrimental side effects. Splenectomy has the advantage over therapeutic options in that it has the potential for complete and long-term remission. The major adverse effect is the syndrome of overwhelming postsplenectomy infection. Other therapeutic options, which are less likely to have long-term benefit, are immunosuppressive drugs, danazol, intravenous immunoglobulin, and plasma exchange. Therapy of cold agglutinin syndrome often is unsatisfactory. All patients should avoid exposure to cold, and if additional therapy is necessary, the therapies used for warm antibody autoimmune hemolytic anemia may be tried with less likelihood of response. Paroxysmal cold hemoglobinuria requires aggressive supportive therapy, generally supplemented by corticosteroids. Hemolysis usually terminates spontaneously. Patients with secondary autoimmune hemolytic anemia may be treated similarly to those with idiopathic autoimmune hemolytic anemia, and additional therapy for the underlying disorder also may result in remission of the hemolysis.
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Affiliation(s)
- L D Petz
- StemCyte, Inc., Arcadia, California 91007, USA.
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41
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Norda R, Berséus O, Stegmayr B. Adverse events and problems in therapeutic hemapheresis. A report from the Swedish registry. Transfus Apher Sci 2001; 25:33-41. [PMID: 11791760 DOI: 10.1016/s1473-0502(01)00079-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Since 1996 adverse events (AE) in therapeutic apheresis (TA) have been more extensively registered in Sweden. This report analyzes the extent and relation of AEs to procedures and diagnoses. MATERIALS AND METHODS Reporting of TA performed in Sweden was centralized. A separate system for the registration of AE in TA was established and the data received were entered into a central database for registration and analyses. Fifteen of all 35 apheresis units reported both TA and AE during 1996-1999. These centers performed 75% of all TA procedures. Adverse events included medical symptoms, vascular access problems, technical and other problems. RESULTS More than 14,000 procedures were registered during the observation period. No fatalities occurred. AEs occurred in 3.7% (1996), 4.6% (1997), 4.2% (1998) and 4.4% (1999) of procedures. Interventions during the adverse event were performed in about 65% of the events. Apheresis procedures were interrupted due to an adverse event in about 1%. Adverse events occurred in 5.6% of plasma exchanges, 1.9% of plasma modulations and 6.8% of cytapheresis procedures. Paresthesia was registered in 22% and hypotensive events in 20.5%. Other more frequent symptoms were urticaria (14.4%), shivering (7.4%) and nausea (7.4%). AEs were most frequent in patients with Goodpasture's syndrome (12.5%), TTP/HUS (10.5%) and GuillainBarré syndrome (11.0%). CONCLUSION AEs are few, often mild and less common in plasma modulation than plasma exchange. AEs are more frequent during TA of patients with certain diagnoses such as TTP/HUS.
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Affiliation(s)
- R Norda
- Department of Transfusion Medicine and Immunohemotherapy, Orebro Medical Center Hospital, Sweden.
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