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Anemia phlebotomy

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https://www.readbyqxmd.com/read/28399115/neonatal-mouse-hippocampus-phlebotomy-induced-anemia-diminishes-and-treatment-with-erythropoietin-partially-rescues-mammalian-target-of-rapamycin-mtor-signaling
#1
Diana J Wallin, Tara G Zamora, Michelle Alexander, Kathleen M Ennis, Phu V Tran, Michael K Georgieff
BACKGROUND: Phlebotomy-induced anemia (PIA) is common in premature infants and affects neurodevelopment. PIA alters hippocampal metabolism in neonatal mice through tissue hypoxia and iron deficiency. The mammalian target of rapamycin (mTOR) pathway senses the status of critical metabolites (e.g., oxygen, iron), thereby regulating hippocampal growth and function. We determined the effect of PIA and recombinant human erythropoietin (rHuEpo) treatment on mTOR signaling and expression of genes related to mTOR pathway functions...
April 11, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28362411/continuous-manual-exchange-transfusion-for-patients-with-sickle-cell-disease-an-efficient-method-to-avoid-iron-overload
#2
Bérengère Koehl, Florence Missud, Laurent Holvoet, Ghislaine Ithier, Oliver Sakalian-Black, Zinedine Haouari, Emmanuelle Lesprit, André Baruchel, Malika Benkerrou
Children with sickle cell anemia (SCA) may be at risk of cerebral vasculopathy and strokes, which can be prevented by chronic transfusion programs. Repeated transfusions of packed red blood cells (PRBCs) is currently the simplest and most used technique for chronic transfusion programs. However, iron overload is one of the major side effects of this therapy. More developed methods exist, notably the apheresis of RBC (erythrapheresis), which is currently the safest and most efficient method. However, it is costly, complicated, and cannot be implemented everywhere, nor is it suitable for all patients...
March 14, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27898431/improving-outcome-of-trauma-patients-by-implementing-patient-blood-management
#3
Christoph Füllenbach, Kai Zacharowski, Patrick Meybohm
PURPOSE OF REVIEW: Patient blood management aims to improve patient outcome and safety by reducing the number of unnecessary red blood cell transfusions and vitalizing patient-specific anemia reserves. While this is increasingly recognized as best clinical practice in elective surgery, the implementation in the setting of trauma is restrained because of typically nonelective (emergency) surgery and, in specific circumstances, allogeneic blood transfusions as life-saving therapy. RECENT FINDINGS: Viscoelastic diagnostics allow a precise identification of trauma-induced coagulopathy...
April 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/27789107/successful-treatment-of-iron-overload-cardiomyopathy-in-hereditary-hemochromatosis-with-deferoxamine-and-deferiprone
#4
Lydie Tauchenová, Barbora Křížová, Miloš Kubánek, Soňa Fraňková, Vojtěch Melenovský, Jaroslav Tintěra, Dana Kautznerová, Jana Malušková, Milan Jirsa, Josef Kautzner
There is scarce evidence regarding the use of iron chelators in patients with hereditary hemochromatosis who are intolerant of phlebotomy or erythrocytapheresis. A 52-year-old man with genetically confirmed HFE hemochromatosis presented with liver disease and heart failure with severe left ventricular systolic dysfunction. Because of anemia after initial treatment, we added intravenous deferoxamine followed by oral deferiprone to less frequent erythrocytapheresis, which normalized systolic function within 1 year...
December 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27538924/safe-reduction-of-blood-volume-in-the-blood-gas-laboratory
#5
Phillip R Jensen, Boaz A Markewitz
BACKGROUND: Phlebotomy is a significant cause of iatrogenic anemia in the critical care environment. It is estimated that one-third of all transfusions of packed red blood cells in intensive care units (ICU) result from phlebotomy. The aims of this study were to determine if utilizing the 1mL blood gas syringe for an adult population would impact the rate at which specimens were acceptable for testing and result reporting based on lab specimen rejection criteria; and to compare blood utilization between the 2 different syringes...
November 2016: Laboratory Medicine
https://www.readbyqxmd.com/read/27473810/bloodless-medicine-current-strategies-and-emerging-treatment-paradigms
#6
REVIEW
Linda M S Resar, Elizabeth C Wick, Talal Nael Almasri, Elizabeth A Dackiw, Paul M Ness, Steven M Frank
BACKGROUND: Advances in our understanding of the risks associated with allogeneic blood transfusions (ABTs) and the growing number of patients who wish to avoid ABTs have led to the emergence of new treatment paradigms for "bloodless" medicine and surgery. STUDY DESIGN AND METHODS: Here, we review prior studies and summarize current strategies for bloodless care used at our institution. We advocate three basic principles: 1) diagnosing and aggressively treating anemia, 2) minimizing blood loss from laboratory testing and invasive procedures, and 3) identifying and managing bleeding diatheses...
October 2016: Transfusion
https://www.readbyqxmd.com/read/27271482/efficacy-and-safety-of-erythrocytapheresis-and-low-dose-erythropoietin-for-treatment-of-hemochromatosis
#7
Dorothea Brückl, Sundrela Kamhieh-Milz, Julian Kamhieh-Milz, Abdulgabar Salama
BACKGROUND: The aim of this study was to determine retrospectively the efficacy of combined therapy using erythropoietin (EPO) and erythrocytapheresis (EA) in patients with hereditary hemochromatosis (HH) who did not tolerate phlebotomy. PATIENTS AND METHODS: Twenty patients (age range, 43-74 years) with genetically confirmed HH had received low-dose EPO (4,000 IU) in accordance to the patient's hemoglobin levels between each EA session. Laboratory parameters including hemoglobin, ferritin, transferrin, and iron were measured at regular intervals...
June 8, 2016: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/27057839/hepcidin-a-promising-therapeutic-target-for-iron-disorders-a-systematic-review
#8
REVIEW
Jing Liu, Bingbing Sun, Huijun Yin, Sijin Liu
Iron is required for most forms of organisms, and it is the most essential element for the functions of many iron-containing proteins involved in oxygen transport, cellular respiration, DNA replication, and so on. Disorders of iron metabolism are associated with diverse diseases, including anemias (e.g., iron-deficiency anemia and anemia of chronic diseases) and iron overload diseases, such as hereditary hemochromatosis and β-thalassemia. Hepcidin (encoded by Hamp gene) is a peptide hormone synthesized by hepatocytes, and it plays an important role in regulating the systematic iron homeostasis...
April 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/26935514/prevention-of-iatrogenic-anemia-in-critical-and-neonatal-care
#9
REVIEW
Natalia Jakacka, Emilian Snarski, Selamawit Mekuria
Iatrogenic anemia caused by diagnostic blood sampling is a common problem in the intensive care unit, where continuous monitoring of blood parameters is very often required. Cumulative blood loss associated with phlebotomy along with other factors render this group of patients particularly susceptible to anemia. As it has been proven that anemia in this group of patients leads to inferior outcomes, packed red blood cell transfusions are used to alleviate possible threats associated with low hemoglobin concentration...
January 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/26637755/optimizing-hydroxyurea-therapy-for-sickle-cell-anemia
#10
Russell E Ware
Hydroxyurea has proven efficacy in numerous clinical trials as a disease-modifying treatment for patients with sickle cell anemia (SCA) but is currently under-used in clinical practice. To improve the effectiveness of hydroxyurea therapy, efforts should be directed toward broadening the clinical treatment indications, optimizing the daily dosage, and emphasizing the benefits of early and extended treatment. Here, various issues related to hydroxyurea treatment are discussed, focusing on both published evidence and clinical experience...
2015: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/26578290/hospital-acquired-anemia-in-critically-ill-dogs-and-cats-a-multi-institutional-study
#11
MULTICENTER STUDY
A M Lynch, M Respess, A E Boll, M Bozych, M McMichael, D J Fletcher, A M De Laforcade, E A Rozanski
BACKGROUND: Hospital-acquired anemia is commonly described in people but limited information currently is available regarding its prevalence in animals. HYPOTHESIS/OBJECTIVES: Assess the prevalence of hospital-acquired anemia in hospitalized critically ill dogs and cats, and examine its relationship with phlebotomy practices, transfusion administration, and survival to discharge. ANIMALS: Eight hundred and fifty-one client-owned animals (688 dogs and 163 cats)...
January 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/26264778/development-of-anemia-phlebotomy-practices-and-blood-transfusion-requirements-in-45-critically-ill-cats-2009-2011
#12
Anusha Balakrishnan, Kenneth J Drobatz, Erica L Reineke
OBJECTIVE: To describe the incidence of the development of anemia, the number of phlebotomies performed daily, the approximate volume of blood withdrawn, the transfusion requirements and their association with duration of hospitalization and survival to discharge in critically ill cats. DESIGN: Retrospective study from January 2009 to January 2011. SETTING: University teaching hospital. ANIMALS: Cats hospitalized in the intensive care unit (ICU) for >48 hours...
May 2016: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/26164619/impact-of-minimizing-diagnostic-blood-loss-in-the-critically-ill
#13
COMPARATIVE STUDY
Heather S Dolman, Kelly Evans, Lisa Hall Zimmerman, Todd Lavery, Alfred E Baylor, Robert F Wilson, James G Tyburski
BACKGROUND: The use of a small-volume phlebotomy tube (SVPT) versus conventional-volume phlebotomy tube (CVPT) has led to a decrease in daily blood loss. Blood loss due to phlebotomy can lead ultimately to decreased rates of anemia and blood transfusions, which can be important in the critically ill patient. METHODS: We compared SVPT vs CVPT retrospectively in critically ill adult patients age ≥18 years admitted to a surgical intensive care unit for ≥48 hours...
October 2015: Surgery
https://www.readbyqxmd.com/read/25776452/portable-hemoglobinometer-is-a-reliable-technology-for-the-follow-up-of-venesections-tolerance-in-hemochromatosis
#14
COMPARATIVE STUDY
Maxime Pawlowski, Fanny Latute, Edouard Bardou-Jacquet, Marianne Latournerie, Selim Zerrouki, Claude Bendavid, Pierre Brissot, Martine Ropert
BACKGROUND: The treatment of HFE-related hemochromatosis, one of the most common genetic diseases, is based on phlebotomies whose tolerance is evaluated by regular monitoring of hemoglobin. Using a portable hemoglobinometer (PH) could provide an easy and fast determination of hemoglobin. Therefore, the aim of the present study was to compare, in hemochromatosis patients treated by bloodletting, the hemoglobin concentrations as assayed, on capillary blood, by a PH device and, on venous blood, by a cell counter (CC) device...
October 2015: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/25734245/phlebotomy-induced-anemia-alters-hippocampal-neurochemistry-in-neonatal-mice
#15
Diana J Wallin, Ivan Tkac, Sara Stucker, Kathleen M Ennis, Martha Sola-Visner, Raghavendra Rao, Michael K Georgieff
BACKGROUND: Phlebotomy-induced anemia (PIA) is common in preterm infants. The hippocampus undergoes rapid differentiation during late fetal/early neonatal life and relies on adequate oxygen and iron to support oxidative metabolism necessary for development. Anemia shortchanges these two critical substrates, potentially altering hippocampal development and function. METHODS: PIA (hematocrit <25%) was induced in neonatal mice pups from postnatal day (P)3 to P14...
June 2015: Pediatric Research
https://www.readbyqxmd.com/read/25720123/ftl-gene-mutation-and-persistent-hyperferritinemia-without-iron-deficiency-anemia-after-phlebotomy
#16
LETTER
Francesco Pallotti, Lorenzo Elli, Paola Maroni, Paolo Chelazzi, Massimo Agosti, Rosario Casalone
No abstract text is available yet for this article.
September 1, 2015: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/25714216/therapeutic-options-to-minimize-allogeneic-blood-transfusions-and-their-adverse-effects-in-cardiac-surgery-a-systematic-review
#17
REVIEW
Antônio Alceu dos Santos, José Pedro da Silva, Luciana da Fonseca da Silva, Alexandre Gonçalves de Sousa, Raquel Ferrari Piotto, José Francisco Baumgratz
INTRODUCTION: Allogeneic blood is an exhaustible therapeutic resource. New evidence indicates that blood consumption is excessive and that donations have decreased, resulting in reduced blood supplies worldwide. Blood transfusions are associated with increased morbidity and mortality, as well as higher hospital costs. This makes it necessary to seek out new treatment options. Such options exist but are still virtually unknown and are rarely utilized. OBJECTIVE: To gather and describe in a systematic, objective, and practical way all clinical and surgical strategies as effective therapeutic options to minimize or avoid allogeneic blood transfusions and their adverse effects in surgical cardiac patients...
October 2014: Revista Brasileira de Cirurgia Cardiovascular
https://www.readbyqxmd.com/read/25696910/bloodless-medicine-what-to-do-when-you-can-t-transfuse
#18
REVIEW
Linda M S Resar, Steven M Frank
A better understanding of risks associated with allogeneic blood transfusions (ABTs), along with a growing population of patients who do not accept transfusions, have led to the emergence of new treatment paradigms with "bloodless medicine." In this chapter, we review prior studies describing management and outcomes in patients who refuse transfusion (referred to as "bloodless patients" herein) and summarize the approaches used at our institution. Bloodless management for surgical patients includes treatment of preoperative anemia, use of autologous blood salvage, and minimizing blood loss with procedures...
December 5, 2014: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/25629741/ruxolitinib-versus-standard-therapy-for-the-treatment-of-polycythemia-vera
#19
RANDOMIZED CONTROLLED TRIAL
Alessandro M Vannucchi, Jean Jacques Kiladjian, Martin Griesshammer, Tamas Masszi, Simon Durrant, Francesco Passamonti, Claire N Harrison, Fabrizio Pane, Pierre Zachee, Ruben Mesa, Shui He, Mark M Jones, William Garrett, Jingjin Li, Ulrich Pirron, Dany Habr, Srdan Verstovsek
BACKGROUND: Ruxolitinib, a Janus kinase (JAK) 1 and 2 inhibitor, was shown to have a clinical benefit in patients with polycythemia vera in a phase 2 study. We conducted a phase 3 open-label study to evaluate the efficacy and safety of ruxolitinib versus standard therapy in patients with polycythemia vera who had an inadequate response to or had unacceptable side effects from hydroxyurea. METHODS: We randomly assigned phlebotomy-dependent patients with splenomegaly, in a 1:1 ratio, to receive ruxolitinib (110 patients) or standard therapy (112 patients)...
January 29, 2015: New England Journal of Medicine
https://www.readbyqxmd.com/read/25583464/contemporary-bloodletting-in-cardiac-surgical-care
#20
Colleen G Koch, Edmunds Z Reineks, Anne S Tang, Eric D Hixson, Shannon Phillips, Joseph F Sabik, J Michael Henderson, Eugene H Blackstone
BACKGROUND: Health care providers are seldom aware of the frequency and volume of phlebotomy for laboratory testing, bloodletting that often leads to hospital-acquired anemia. Our objectives were to examine the frequency of laboratory testing in patients undergoing cardiac surgery, calculate cumulative phlebotomy volume from time of initial surgical consultation to hospital discharge, and propose strategies to reduce phlebotomy volume. METHODS: From January 1, 2012 to June 30, 2012, 1,894 patients underwent cardiac surgery at Cleveland Clinic; 1,867 had 1 hospitalization and 27 had 2...
March 2015: Annals of Thoracic Surgery
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