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Plebani M. Advancing value-based laboratory medicine. Clin Chem Lab Med 2024; 0:cclm-2024-0823. [PMID: 39072502 DOI: 10.1515/cclm-2024-0823] [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: 07/18/2024] [Accepted: 07/24/2024] [Indexed: 07/30/2024]
Abstract
Following the COVID-19 pandemic, the concepts of value-based medicine (VBM) and value-based laboratory medicine (VBLM) are receiving increasing interest to improve the quality, sustainability and safety of healthcare. Laboratory medicine is well positioned to support the transition to value-based healthcare as it helps to improve clinical outcomes and healthcare sustainability by reducing the time to diagnosis, improving diagnostic accuracy, providing effective guidance for tailored therapies and monitoring, and supporting screening and wellness care. However, the perception of the value of laboratory medicine is still limited, to the extent that it has been defined a "profession without a face", often lacking visibility to patients and the public. In addition, in recent decades, clinical laboratories have sought to improve the ration between outcomes and costs by increasing efficiency and reducing the cost per test rather than improving clinical outcomes. The aim of this paper is to propose a 10-point manifesto for implementing value-based laboratory medicine in clinical practice.
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Affiliation(s)
- Mario Plebani
- Honorary Professor of Clinical Biochemistry and Clinical Molecular Biology, University of Padova, Padova, Italy
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Pennestrì F, Tomaiuolo R, Banfi G, Dolci A. Blood over-testing: impact, ethical issues and mitigating actions. Clin Chem Lab Med 2024; 62:1283-1287. [PMID: 38156643 DOI: 10.1515/cclm-2023-1227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024]
Abstract
Plenty of studies demonstrate that hospital-acquired anemia (HAA) can increase transfusion rates, mortality, morbidity and cause unnecessary patient burden, including additional length of hospital stay, sleep disruption and venipuncture harms resulting from blood samples unlikely to change clinical management. Beyond patient costs, community costs should also be considered, such as laboratory time and resources waste, environmental impact, increasing pressure on labs and fewer tests available on time for patients who can benefit from them most. Blood over-testing does not support the principles of non-maleficence, justice and respect for patient autonomy, at the expense dubious beneficence. Reducing the number and frequency of orders is possible, to a certain extent, by adopting nudge strategies and raising awareness among prescribing doctors. However, reducing the orders may appear unsafe to doctors and patients. Therefore, reducing blood volume from each order is a better alternative, which is worth implementing through technological, purchasing and organizational arrangements, possibly combined according to need (smaller tubes, adequate analytic platforms, blind dilution, blood conservative devices, aggregating tests and laboratory units).
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Affiliation(s)
| | - Rossella Tomaiuolo
- IRCCS Istituto Ortopedico Galeazzi, Scientific Direction, Milan, Italy
- Vita-Salute San Raffaele University, School of Medicine, Milan, Italy
| | - Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, Scientific Direction, Milan, Italy
- Vita-Salute San Raffaele University, School of Medicine, Milan, Italy
| | - Alberto Dolci
- SC Patologia Clinica, Dipartimento di Medicina di Laboratorio, Ospedale "Luigi Sacco", Milan, Italy
- Dipartimento di Scienze Biomediche e Cliniche, Università degli Studi di Milano, Milan, Italy
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Benites BD, Magnus MM, Costa L, Brunetta DM, Rodriges RDR, Alves SDOC, De Santis GC, Rizzo SRCP, Rabello G, Junior DML. Consensus of the Brazilian association of hematology, hemotherapy and cellular therapy on patient blood management: Assessment and management of postoperative anemia. Hematol Transfus Cell Ther 2024; 46 Suppl 1:S72-S76. [PMID: 38580494 PMCID: PMC11069069 DOI: 10.1016/j.htct.2024.02.014] [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: 02/09/2024] [Accepted: 02/18/2024] [Indexed: 04/07/2024] Open
Abstract
Postoperative anemia is a complex clinical issue that requires attention due to its ramifications on the patient's recovery and prognosis. Originating from multiple determinants, such as intraoperative blood loss, hemolysis, nutritional deficiencies, systemic inflammation and impact on the bone marrow, postoperative anemia has varied and often challenging presentations. Patients undergoing major surgical procedures, in particular, are susceptible to developing anemia due to the considerable associated blood loss. Accurate diagnosis plays a crucial role in the approach, requiring meticulous hematological analysis, including hemoglobin, hematocrit and reticulocyte count, as well as an in-depth investigation of the underlying causes. An additional challenge arises in the form of the excessive practice of phlebotomy during hospitalization for clinical monitoring. Although it is essential to assess the progression of anemia, frequent removal of blood may contribute to iatrogenic anemia, further delaying recovery and possibly increasing susceptibility to infection.
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Affiliation(s)
- Bruno Deltreggia Benites
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas (Hemocentro UNICAMP), Campinas, SP, Brazil
| | - Mariana Munari Magnus
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas (Hemocentro UNICAMP), Campinas, SP, Brazil
| | - Lorena Costa
- Universidade de Pernambuco (UPE), Recife, PE, Brazil
| | - Denise Menezes Brunetta
- Centro de Hematologia e Hemoterapia do Ceará (HEMOCE), Fortaleza, CE, Brazil; Complexo Hospitalar da Universidade Federal do Ceará (EBSERH UFC), Fortaleza, CE, Brazil; Faculdade de Medicina da Universidade Federal do Ceará (FM UFC), Fortaleza, CE, Brazil
| | - Roseny Dos Reis Rodriges
- Hospital Israelita Albert Einstein são Paulo, São Paulo, SP, Brazil; Faculdade de Medicina da Universidade de São Paulo (FM USP), São Paulo, SP, Brazil
| | | | - Gil Cunha De Santis
- Hemocentro de Ribeirão Preto, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (HCFMRP-USP), Ribeirão Preto, SP, Brazil
| | | | - Guilherme Rabello
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (Incor - HCFMUSP), São Paulo, SP, Brazil.
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Wang L, Zhang X, Qin Y, Wang F, Cui M, Shi Y, Chen Y. A comparative study on coagulation and hematologic laboratory techniques for blood sampling using the push-pull method from a CVC versus venipuncture. J Vasc Access 2024; 25:615-624. [PMID: 36254372 DOI: 10.1177/11297298221118742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES To demonstrate the equivalence and substitutability of two blood collection methods: the push-pull method from a CVC and direct venous puncture (DVP). METHODS A comparative, within-subject study was conducted between September 2021 and December 2021 at a hospital in NanTong city. The sample comprised critically ill patients aged 18 and older in critical care units such as general, emergent, cardiac, respiratory, and neurological units. A total of 154 paired blood samples were collected via a CVC and direct venous puncture. This study focused on the laboratory results of the coagulation and hematologic tests. The reproducibility and reliability of the results were calculated by the mean of the coefficient of variation (CV) and the intraclass correlation coefficient (ICC). Bland-Altman statistics were used to analyze the substitutability of the two blood collection methods. RESULTS The difference in the means between the two methods ranged from -1.61 to 0.09, and the coefficients of variation for both methods were similar. The ICCs of the two methods were all above 0.90, which indicated excellent reliability. In the Bland-Altman plots, all of the blood samples that obtained by the push-pull method were within clinically acceptable ranges compared to the samples obtained by direct venous puncture. CONCLUSION The push-pull method of collecting blood specimens from a CVC should be acceptable for coagulation and hematologic laboratory tests.
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Affiliation(s)
- Lingli Wang
- Department of Nursing, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xiaomei Zhang
- Department of Nursing, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Yi Qin
- Department of Nursing, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Feng Wang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Ming Cui
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Yingjuan Shi
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Yu Chen
- School of Nursing, Fudan University, Shanghai, China
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Siegal DM, Belley-Côté EP, Lee SF, Hill S, D’Aragon F, Zarychanski R, Rochwerg B, Chassé M, Binnie A, Honarmand K, Lauzier F, Ball I, Al-Hazzani W, Archambault P, Duan E, Khwaja K, Lellouche F, Lysecki P, Marquis F, Naud JF, Shahin J, Shea J, Tsang JL, Wang HT, Crowther M, Arnold DM, Di Sante E, Marfo G, Kovalova T, Fonguh S, Vincent J, Connolly SJ. Small-Volume Blood Collection Tubes to Reduce Transfusions in Intensive Care: The STRATUS Randomized Clinical Trial. JAMA 2023; 330:1872-1881. [PMID: 37824152 PMCID: PMC10570918 DOI: 10.1001/jama.2023.20820] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 09/22/2023] [Indexed: 10/13/2023]
Abstract
Importance Blood collection for laboratory testing in intensive care unit (ICU) patients is a modifiable contributor to anemia and red blood cell (RBC) transfusion. Most blood withdrawn is not required for analysis and is discarded. Objective To determine whether transitioning from standard-volume to small-volume vacuum tubes for blood collection in ICUs reduces RBC transfusion without compromising laboratory testing procedures. Design, Setting, and Participants Stepped-wedge cluster randomized trial in 25 adult medical-surgical ICUs in Canada (February 5, 2019 to January 21, 2021). Interventions ICUs were randomized to transition from standard-volume (n = 10 940) to small-volume tubes (n = 10 261) for laboratory testing. Main Outcomes and Measures The primary outcome was RBC transfusion (units per patient per ICU stay). Secondary outcomes were patients receiving at least 1 RBC transfusion, hemoglobin decrease during ICU stay (adjusted for RBC transfusion), specimens with insufficient volume for testing, length of stay in the ICU and hospital, and mortality in the ICU and hospital. The primary analysis included patients admitted for 48 hours or more, excluding those admitted during a 5.5-month COVID-19-related trial hiatus. Results In the primary analysis of 21 201 patients (mean age, 63.5 years; 39.9% female), which excluded 6210 patients admitted during the early COVID-19 pandemic, there was no significant difference in RBC units per patient per ICU stay (relative risk [RR], 0.91 [95% CI, 0.79 to 1.05]; P = .19; absolute reduction of 7.24 RBC units/100 patients per ICU stay [95% CI, -3.28 to 19.44]). In a prespecified secondary analysis (n = 27 411 patients), RBC units per patient per ICU stay decreased after transition from standard-volume to small-volume tubes (RR, 0.88 [95% CI, 0.77 to 1.00]; P = .04; absolute reduction of 9.84 RBC units/100 patients per ICU stay [95% CI, 0.24 to 20.76]). Median decrease in transfusion-adjusted hemoglobin was not statistically different in the primary population (mean difference, 0.10 g/dL [95% CI, -0.04 to 0.23]) and lower in the secondary population (mean difference, 0.17 g/dL [95% CI, 0.05 to 0.29]). Specimens with insufficient quantity for analysis were rare (≤0.03%) before and after transition. Conclusions and Relevance Use of small-volume blood collection tubes in the ICU may decrease RBC transfusions without affecting laboratory analysis. Trial Registration ClinicalTrials.gov Identifier: NCT03578419.
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Affiliation(s)
- Deborah M. Siegal
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Emilie P. Belley-Côté
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Shun Fu Lee
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Stephen Hill
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Frédérick D’Aragon
- Department of Anesthesiology, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Ryan Zarychanski
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Bram Rochwerg
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Michaël Chassé
- Centre Hospitalier de l’Université de Montréal, Department of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Alexandra Binnie
- William Osler Health System – Brampton Civic and Etobicoke General, Brampton, Ontario, Canada
| | - Kimia Honarmand
- London Health Sciences Centre – CCTC and University Hospital, Department of Medicine, Western University, London, Ontario, Canada
| | - François Lauzier
- Centre Hospitalier Universitaire de Québec - Enfant-Jésus and Hôtel-Dieu, Department of Medicine, Department of Anesthesiology, Université Laval, Québec, Canada
| | - Ian Ball
- London Health Sciences Centre – CCTC and University Hospital, Department of Medicine, Western University, London, Ontario, Canada
| | - Waleed Al-Hazzani
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- St. Joseph’s Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Patrick Archambault
- Hôtel-Dieu de Lévis, Department of Family Medicine and Urgent Care, Université Laval, Québec, Canada
| | - Erick Duan
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Niagara Health – St. Catharine’s General Hospital, St. Catharine’s, Ontario, Canada
| | - Kosar Khwaja
- Montreal General Hospital, Departments of Surgery and Critical Care Medicine, McGill University, Montréal, Québec, Canada
| | - François Lellouche
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Department of Medicine, Université Laval, Québec, Canada
| | - Paul Lysecki
- Joseph Brant Hospital, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - François Marquis
- Maisonneuve-Rosemont, Department of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Jean-François Naud
- Centre intégré universitaire de santé et de services sociaux de la Mauricie-et-du-Centre-du-Québec-CHAUR, Trois-Rivières, Québec, Canada
| | - Jason Shahin
- Royal Victoria Hospital, Department of Critical Care, McGill University, Montréal, Québec, Canada
| | - Jennifer Shea
- Saint John Regional Hospital, Department of Medicine, Memorial University, St. John, New Brunswick, Canada
| | - Jennifer L.Y. Tsang
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Niagara Health – St. Catharine’s General Hospital, St. Catharine’s, Ontario, Canada
| | - Han Ting Wang
- Maisonneuve-Rosemont, Department of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Mark Crowther
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- St. Joseph’s Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Donald M. Arnold
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Emily Di Sante
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Gladys Marfo
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Tanya Kovalova
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Sylvanus Fonguh
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Jessica Vincent
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Stuart J. Connolly
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
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Villani R, Romano AD, Rinaldi R, Sangineto M, Santoliquido M, Cassano T, Serviddio G. Prevalence and risk factors for hospital-acquired anemia in internal medicine patients: learning from the "less is more" perspective. Intern Emerg Med 2023; 18:177-183. [PMID: 36346557 PMCID: PMC9883305 DOI: 10.1007/s11739-022-03147-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 10/27/2022] [Indexed: 11/10/2022]
Abstract
Hospital-acquired anemia is defined as a new-onset anemia in hospitalized patients who have a normal hemoglobin level at admission. Its prevalence is unknown and most studies published on this topic have been conducted in intensive care unit patients with limited applicability to less acute settings, such as internal medicine wards. We conducted a retrospective study and enrolled 129 patients who were admitted to an Internal Medicine Unit between October 2021 and February 2022. The median value of phlebotomy during hospitalization was 46 ml (IQR 30-72 ml), whereas the median length of hospital stay was 9 days (IQR 5-13 days). The median value of hemoglobin reduction was -0.63 g/dl (p < 0.001) and the maximum value of drop in hemoglobin value was -2.6 g/dl. All patients who experienced a phlebotomy > 85 ml had a hemoglobin reduction > 0.6 g/dl. 20.9% of patients developed anemia during the hospital stay (7% moderate and 13.9% mild). No cases of severe anemia were observed. The volume of blood drawn during the hospital stay and the Hb value on admission were the only two variables statistically associated with the development of anemia, whereas gender, age, and chronic diseases, such as diabetes, history of cancer, or heart failure, were not. Strategies, such as elimination of unnecessary laboratory tests and the use of smaller tubes for blood collection, are needed to reduce the volume of iatrogenic blood loss and avoid blood wastage occurring during hospitalization in internal medicine patients.
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Affiliation(s)
- Rosanna Villani
- C.U.R.E. (University Centre for Liver Disease Research and Treatment), Liver Unit, Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto 1, 71122, Foggia, Italy.
| | - Antonino Davide Romano
- C.U.R.E. (University Centre for Liver Disease Research and Treatment), Liver Unit, Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto 1, 71122, Foggia, Italy
| | - Roberta Rinaldi
- C.U.R.E. (University Centre for Liver Disease Research and Treatment), Liver Unit, Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto 1, 71122, Foggia, Italy
| | - Moris Sangineto
- C.U.R.E. (University Centre for Liver Disease Research and Treatment), Liver Unit, Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto 1, 71122, Foggia, Italy
| | - Mariateresa Santoliquido
- C.U.R.E. (University Centre for Liver Disease Research and Treatment), Liver Unit, Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto 1, 71122, Foggia, Italy
| | - Tommaso Cassano
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Gaetano Serviddio
- C.U.R.E. (University Centre for Liver Disease Research and Treatment), Liver Unit, Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto 1, 71122, Foggia, Italy
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Bodley T, Chan M, Levi O, Clarfield L, Yip D, Smith O, Friedrich JO, Hicks LK. Patient harm associated with serial phlebotomy and blood waste in the intensive care unit: A retrospective cohort study. PLoS One 2021; 16:e0243782. [PMID: 33439871 PMCID: PMC7806151 DOI: 10.1371/journal.pone.0243782] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/25/2020] [Indexed: 11/23/2022] Open
Abstract
Background Intensive care unit (ICU) patients are at high risk of anemia, and phlebotomy is a potentially modifiable source of blood loss. Our objective was to quantify daily phlebotomy volume for ICU patients, including blood discarded as waste during vascular access, and evaluate the impact of phlebotomy volume on patient outcomes. Methods This was a retrospective observational cohort study between September 2014 and August 2015 at a tertiary care academic medical-surgical ICU. A prospective audit of phlebotomy practices in March 2018 was used to estimate blood waste during vascular access. Multivariable logistic regression was used to evaluate phlebotomy volume as a predictor of ICU nadir hemoglobin < 80 g/L, and red blood cell transfusion. Results There were 428 index ICU admissions, median age 64.4 yr, 41% female. Forty-four patients (10%) with major bleeding events were excluded. Mean bedside waste per blood draw (144 draws) was: 3.9 mL from arterial lines, 5.5 mL central venous lines, and 6.3 mL from peripherally inserted central catheters. Mean phlebotomy volume per patient day was 48.1 ± 22.2 mL; 33.1 ± 15.0 mL received by the lab and 15.0 ± 8.1 mL discarded as bedside waste. Multivariable regression, including age, sex, admission hemoglobin, sequential organ failure assessment score, and ICU length of stay, showed total daily phlebotomy volume was predictive of hemoglobin <80 g/L (p = 0.002), red blood cell transfusion (p<0.001), and inpatient mortality (p = 0.002). For every 5 mL increase in average daily phlebotomy the odds ratio for nadir hemoglobin <80 g/L was 1.18 (95% CI 1.07–1.31) and for red blood cell transfusion was 1.17 (95% CI 1.07–1.28). Conclusion A substantial portion of daily ICU phlebotomy is waste discarded during vascular access. Average ICU phlebotomy volume is independently associated with ICU acquired anemia and red blood cell transfusion which supports the need for phlebotomy stewardship programs.
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Affiliation(s)
- Thomas Bodley
- Interdepartmental Division of Critical Care, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- * E-mail:
| | - Maverick Chan
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Olga Levi
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Lauren Clarfield
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Drake Yip
- Division of Laboratory Medicine, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Orla Smith
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Jan O. Friedrich
- Interdepartmental Division of Critical Care, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Lisa K. Hicks
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
- Division of Hematology/Oncology, St. Michael’s Hospital, Toronto, Ontario, Canada
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Thachil J, Tang N, Gando S, Falanga A, Levi M, Clark C, Iba T. Laboratory haemostasis monitoring in COVID-19. J Thromb Haemost 2020; 18:2058-2060. [PMID: 32324960 PMCID: PMC7264510 DOI: 10.1111/jth.14866] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 01/17/2023]
Affiliation(s)
- Jecko Thachil
- Department of Haematology, Manchester University Hospitals, Manchester, UK
| | - Ning Tang
- Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Satoshi Gando
- Department of Acute and Critical Care Medicine, Sapporo Higashi Tokushukai Hospital, Sapporo, Japan
| | - Anna Falanga
- Department of Medicine and Surgery, University of Milan Bicocca, Hospital Papa Giovanni, XXIII, Bergamo, Italy
| | - Marcel Levi
- Department of Medicine and Cardio-metabolic Programme-NIHR UCLH/UCL BRC, University College London Hospitals NHS Foundation Trust, London, UK
| | - Cary Clark
- Director of Programs and Education, International Society on Thrombosis and Haemostasis, Carrboro, UK
| | - Toshiaki Iba
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
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9
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Warner MA, Shore-Lesserson L, Shander A, Patel SY, Perelman SI, Guinn NR. Perioperative Anemia. Anesth Analg 2020; 130:1364-1380. [DOI: 10.1213/ane.0000000000004727] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Validation and clinical application of dried blood spot assay for quantitative assessment of edoxaban in healthy adults. Bioanalysis 2020; 12:393-407. [PMID: 32329378 DOI: 10.4155/bio-2019-0180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Aim: Dried blood spot (DBS) is a sampling approach that offers several advantages over plasma and whole blood (WB) sampling, but several factors, such as hematocrit and temperature, can adversely affect quantitation. Methodology & results: In an open-label, three-way crossover study in healthy subjects, we explored the correlation between DBS, WB and plasma samples, and between DBS samples from finger-prick and venipuncture blood for measuring edoxaban and its metabolite M-4 using LC-MS/MS. The methods were validated comprehensively. The incurred sample reanalysis experiments demonstrated quantitation reproducibility in all three matrices. Overall, there was a good correlation (near perfect concordance for edoxaban) among plasma, WB and DBS measurements. M-4 concentrations in DBS and WB were lower than in plasma. Conclusion: These results indicate using DBS may be used as an alternative methodology to measure edoxaban pharmacokinetics.
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Shander A, Corwin HL. A Narrative Review on Hospital-Acquired Anemia: Keeping Blood where It Belongs. Transfus Med Rev 2020; 34:195-199. [PMID: 32507403 DOI: 10.1016/j.tmrv.2020.03.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/23/2020] [Accepted: 03/25/2020] [Indexed: 12/13/2022]
Abstract
Hospital-acquired anemia (HAA) is a prevalent condition that is independently associated with worse clinical outcomes including prolongation of hospital stay and increased morbidity and mortality. While multifactorial in general, iatrogenic blood loss has been long recognized as one of the key contributing factors to development and worsening of HAA during hospital stay. Patients can be losing over 50 mL of blood per day to diagnostic blood draws. Strategies such as elimination of unnecessary laboratory tests that are not likely to alter the course of management, use of pediatric-size or small-volume tubes for blood collection to reduce phlebotomy volumes and avoid blood wastage, use of closed blood sampling devices, and substituting invasive tests with point-of-care testing alone or bundled together have generally been shown to be effective in reducing the volume of iatrogenic blood loss, hemoglobin decline, and blood transfusions, with no negative impact on the availability of test results for the clinical team. These strategies are important components of Patient Blood Management programs and their adoption can lead to improved clinical outcomes for patients.
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Affiliation(s)
- Aryeh Shander
- Department of Anesthesiology and Critical Care Medicine, TeamHealth Research Institute, Englewood Hospital and Medical Center, Englewood, NJ, USA.
| | - Howard L Corwin
- Department of Critical Care Medicine, Geisinger Health System, Danville, PA, USA
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Holland J, Peralta RM, Moss RL, Feane K, Uprichard J. A single-centre review of iatrogenic anaemia in adult intensive care. Transfus Med 2020; 30:196-200. [PMID: 32115814 DOI: 10.1111/tme.12674] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 01/26/2020] [Accepted: 02/13/2020] [Indexed: 12/29/2022]
Abstract
OBJECTIVES (a) To quantify the volume of diagnostic blood loss (DBL) and evaluate its impact on intensive care unit (ICU) patients, (b) examine the correlation between severity of disease and DBL and (c) identify potentially vulnerable patient subgroups. BACKGROUND Iatrogenic anaemia is an important problem amongst ICU patients, with significant daily DBL. METHODS A single-centre observational cohort study was conducted at St George's Hospital, London, cardiac and general ICU. Forty patients were included in the study. Variables measured were volume of blood collected and discarded on a daily basis, Acute Physiology and Chronic Health Evaluation (APACHE) II score, frequency of phlebotomy, haemoglobin concentration before and after admission to ICU, reason for admission and complications developed in ICU. RESULTS Mean (SD) total volume drawn per patient per day over 4 days was 86.3 mL (19.58). Nearly 30% of the total blood taken was discarded. There was a strong positive correlation between patients admitted because of sepsis and volume of DBL (P < .01), APACHE II score and volume taken (P = .01), patients who developed respiratory failure requiring ventilation and volume taken (P < .01) and patients who had received a blood transfusion and volume taken (P < .01). Haemoglobin concentration on discharge was negatively associated with DBL volume (P < .01). CONCLUSION High volumes of blood were taken and discarded from the study population, possibly reflecting the fact that there are no guidelines for ICU staff in terms of the amount of blood that needs to be withdrawn in order to "prime" access lines.
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Affiliation(s)
- James Holland
- Foundation Training Programme, NHS Greater Glasgow and Clyde, Glasgow, UK
| | - Rita M Peralta
- The Centre for Haemostasis and Thrombosis, St Georges University Hospitals NHS Foundation Trust, London, UK
| | - Rachel L Moss
- Department of Laboratory Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Kelly Feane
- Department of Transfusion Medicine, St Georges University Hospitals NHS Foundation Trust, London, UK
| | - James Uprichard
- The Centre for Haemostasis and Thrombosis, St Georges University Hospitals NHS Foundation Trust, London, UK.,Department of Transfusion Medicine, St Georges University Hospitals NHS Foundation Trust, London, UK
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13
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El Chaer F, Ballen KK. Treatment of acute leukaemia in adult Jehovah's Witnesses. Br J Haematol 2019; 190:696-707. [PMID: 31693175 DOI: 10.1111/bjh.16284] [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: 08/01/2019] [Accepted: 09/18/2019] [Indexed: 01/28/2023]
Abstract
Since Jehovah's Witness (JW) patients diagnosed with leukaemia refuse blood transfusions, they are often denied intensive chemotherapy for fear they could not survive myeloablation without blood transfusion support. Treatment of JW patients with acute leukaemia is challenging and carries a higher morbidity and mortality; however, the refusal of blood products should not be an absolute contraindication to offer multiple treatment modalities including haematopoietic stem cell transplantation. In this review we discuss their optimal management and describe alternative modalities to blood transfusions to provide sufficient oxygenation and prevent bleeding.
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Affiliation(s)
- Firas El Chaer
- Department of Medicine, Division of Hematology and Oncology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Karen K Ballen
- Department of Medicine, Division of Hematology and Oncology, University of Virginia School of Medicine, Charlottesville, VA, USA
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14
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Whitehead NS, Williams LO, Meleth S, Kennedy SM, Ubaka-Blackmoore N, Geaghan SM, Nichols JH, Carroll P, McEvoy MT, Gayken J, Ernst DJ, Litwin C, Epner P, Taylor J, Graber ML. Interventions to prevent iatrogenic anemia: a Laboratory Medicine Best Practices systematic review. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:278. [PMID: 31399052 PMCID: PMC6688222 DOI: 10.1186/s13054-019-2511-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 06/10/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND As many as 90% of patients develop anemia by their third day in an intensive care unit (ICU). We evaluated the efficacy of interventions to reduce phlebotomy-related blood loss on the volume of blood lost, hemoglobin levels, transfusions, and incidence of anemia. METHODS We conducted a systematic review and meta-analysis using the Laboratory Medicine Best Practices (LMBP) systematic review methods for rating study quality and assessing the body of evidence. Searches of PubMed, Embase, Cochrane, Web of Science, PsychINFO, and CINAHL identified 2564 published references. We included studies of the impact of interventions to reduce phlebotomy-related blood loss on blood loss, hemoglobin levels, transfusions, or anemia among hospital inpatients. We excluded studies not published in English and studies that did not have a comparison group, did not report an outcome of interest, or were rated as poor quality. Twenty-one studies met these criteria. We conducted a meta-analysis if > 2 homogenous studies reported sufficient information for analysis. RESULTS We found moderate, consistent evidence that devices that return blood from flushing venous or arterial lines to the patient reduced blood loss by approximately 25% in both neonatal ICU (NICU) and adult ICU patients [pooled estimate in adults, 24.7 (95% CI = 12.1-37.3)]. Bundled interventions that included blood conservation devices appeared to reduce blood loss by at least 25% (suggestive evidence). The evidence was insufficient to determine if these devices reduced hemoglobin decline or risk of anemia. The evidence suggested that small volume tubes reduced the risk of anemia, but was insufficient to determine if they affected the volume of blood loss or the rate of hemoglobin decline. CONCLUSIONS Moderate, consistent evidence indicated that devices that return blood from testing or flushing lines to the patient reduce the volume of blood loss by approximately 25% among ICU patients. The results of this systematic review support the use of blood conservation systems with arterial or venous catheters to eliminate blood waste when drawing blood for testing. The evidence was insufficient to conclude the devices impacted hemoglobin levels or transfusion rates. The use of small volume tubes may reduce the risk of anemia.
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Affiliation(s)
| | - Laurina O Williams
- Division of Laboratory Systems, Center for Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, 1600 Clifton Road, NE, MS G25, Atlanta, GA, 30333, USA.
| | | | | | | | - Sharon M Geaghan
- Department of Pathology, Pediatrics Division, Stanford University School of Medicine, Stanford, CA, USA
| | - James H Nichols
- Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Patrick Carroll
- Division of Neonatology, Intermountain Healthcare , St. George, UT, USA
| | | | - Julie Gayken
- Julie Gayken Laboratory Consulting, St. Cloud, MN, USA
| | | | - Christine Litwin
- Clinical Immunology and Referral Testing, Medical University of South Carolina, Columbia, SC, USA
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15
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Zampieri FG, Einav S. When will less monitoring and diagnostic testing benefit the patient more? Intensive Care Med 2019; 45:1447-1450. [PMID: 31375865 DOI: 10.1007/s00134-019-05715-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/25/2019] [Indexed: 11/30/2022]
Affiliation(s)
| | - Sharon Einav
- General Intensive Care Unit of the Shaare Zedek Medical Center, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
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16
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Pasqualetti S, Aloisio E, Birindelli S, Dolci A, Panteghini M. Impact of total automation consolidating first-line laboratory tests on diagnostic blood loss. ACTA ACUST UNITED AC 2019; 57:1721-1729. [DOI: 10.1515/cclm-2019-0133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 05/01/2019] [Indexed: 12/11/2022]
Abstract
Abstract
Background
Blood loss for laboratory testing may contribute to hospital-acquired anemia. When implementing the core laboratory (core-lab) section, we consolidated first-line tests decreasing the number of tubes previously dispatched to different sites. Here, hypothesized benefits of the amount of blood volume drawn were explored.
Methods
We retrieved, using a laboratory information system (LIS), the number of tubes received by laboratories interested in the change from all clinical wards in a year-based period, i.e. 2013 for pre-core-lab and 2015 for core-lab system, respectively. Data were expressed as the overall number of tubes sent to laboratories, the corresponding blood volume, and the number of laboratory tests performed, normalized for the number of inpatients.
Results
After consolidation, the average number of blood tubes per inpatient significantly decreased (12.6 vs. 10.7, p < 0.001). However, intensive care units (ICUs) did not reduce the number of tubes per patient, according to the needs of daily monitoring of their clinical status. The average blood volume sent to laboratories did not vary significantly because serum tubes for core-lab required higher volumes for testing up to 55 analytes in the same transaction. Finally, the number of requested tests per patient during the new osystem slightly decreased (−2.6%).
Conclusions
Total laboratory automation does not automatically mean reducing iatrogenic blood loss. The new system affected the procedure of blood drawing in clinical wards by significantly reducing the number of handled tubes, producing a benefit in terms of costs, labor and time consumption. Except in ICUs, this also slightly promoted some blood saving. ICUs which engage in phlebotomizing patients daily, did not take advantage from the test consolidation.
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Affiliation(s)
- Sara Pasqualetti
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco , Via GB Grassi 74 , 20157 Milan , Italy , Phone: +39 02 39042683, Fax: +39 02 39042364
| | - Elena Aloisio
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco , Milan , Italy
| | - Sarah Birindelli
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco , Milan , Italy
| | - Alberto Dolci
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco , Milan , Italy
| | - Mauro Panteghini
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco , Milan , Italy
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17
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Leukocytosis interference in clinical chemistry: Shall we still interpret test results without hematological data? J Med Biochem 2019; 39:66-71. [PMID: 32549780 DOI: 10.2478/jomb-2019-0005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 01/30/2019] [Indexed: 12/26/2022] Open
Abstract
Background Extreme leukocytosis is known to induce remarkable variations of some clinical chemistry tests, thus leading to possible clinical misinterpretation. This study aimed to define whether also moderate leukocytosis may influence the stability of glucose and blood gases. Methods Blood samples are sent to the local laboratory through a pneumatic tube system. Clinical chemistry testing is routinely performed using Lithium-heparin tubes (for glucose) and heparin blood gases syringes (for blood gas analysis). Stability of glucose (in uncentrifuged blood tubes) and blood gases (in syringes) was hence evaluated in samples maintained at room temperature. Results were also analyzed in 2 subgroups of samples with different leukocyte counts, i.e., those with leukocytes <15 × 109/L and those with leukocytes >15 × 109/L. Results An accelerated decrease of pH was observed in blood gases syringes with leukocytosis (i.e., >15 × 109/L), while no difference was noted for other blood gases parameters (PCO2, PO2). Spurious and time-dependent hypoglycemia was noted in uncentrifuged blood tubes of patients with leukocytosis. Conclusions The results of our study suggest that even modest leukocytosis (i.e., around 15 × 109/L), which is frequently encountered in clinical and laboratory practice, may be associated with significant variations of both glucose and pH. This would lead us to conclude that results of these parameters shall be accompanied by those of hematologic testing to prevent clinical misinterpretation, namely with leukocyte counts.
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18
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Abstract
BACKGROUND Preoperative anemia has a prevalence of approximately 30% and is one of the strongest predictors of perioperative red blood cell (RBC) transfusion. It is rarely treated although it is an independent risk factor for the occurrence of postoperative complications. Additionally, the high variability in the worldwide usage of RBC transfusions is alarming. Due to these serious deficits in patient care, in 2011 the World Health Organization recommended the implementation of a patient blood management (PBM). OBJECTIVES This article provides information about PBM as a multidimensional and interdisciplinary approach. MATERIAL AND METHODS A selective literature search was carried out in the Medline and Cochrane library databases including consideration of national and international guidelines. RESULTS A PBM promotes the medically and ethically appropriate use of all available resources, techniques and materials in favor of an optimized perioperative patient care. Patients' own resources should be specifically protected, strengthened and used and include (i) diagnosis and therapy of preoperative anemia, (ii) minimizing perioperative blood loss, (iii) blood-conserving surgical techniques, (iv) restriction of diagnostic blood sampling, (v) utilization of individual anemia tolerance, (vi) optimal coagulation and hemotherapy concepts and (vii) guideline-based, rational indications for the use of RBC transfusions. CONCLUSION A PBM should be advocated as an incentive to evaluate and critically optimize local conditions. An individual, interdisciplinarily structured bundle of different PBM measures has great potential to optimize the quality of patient care and to make it safer.
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19
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Shander A, Gilsanz F. Monitoring, safety and efficiency in the use of blood components. ACTA ACUST UNITED AC 2016; 64:1-5. [PMID: 27567346 DOI: 10.1016/j.redar.2016.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 06/21/2016] [Indexed: 12/24/2022]
Affiliation(s)
- A Shander
- Department of Anesthesiology and Critical Care Medicine, Englewood Hospital and Medical Center, Englewood, New Jersey, Estados Unidos de América; TeamHealth Research Institute, Englewood, New Jersey, Estados Unidos de América.
| | - F Gilsanz
- Servicio de Anestesia-Reanimación, Hospital Universitario La Paz, Madrid, España
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20
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[Hospital-acquired anemia: Facts, consequences and prevention]. Transfus Clin Biol 2016; 23:185-191. [PMID: 27562519 DOI: 10.1016/j.tracli.2016.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 07/22/2016] [Indexed: 12/31/2022]
Abstract
Hospital-acquired anemia is common, especially in the most critically ill patients. It may be associated with poor patient outcomes. It may result from increased blood loss, impaired red cell production or reduced red cell life span. Multiple associated factors may contribute simultaneously or sequentially to the decrease in hemoglobin level. Some of them are related to the underlying disease and others are iatrogenic. Clinicians should be aware of the importance and consequences of iatrogenic anemia caused by diagnostic blood sampling. Strategies and measures to minimize iatrogenic blood loss should be prioritized. They may reduce the risk of developing anemia and then red blood cells transfusion requirement.
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21
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Hicks LK, Rajasekhar A, Bering H, Carson KR, Kleinerman J, Kukreti V, Ma A, Mueller BU, O'Brien SH, Panepinto JA, Pasquini MC, Sarode R, Wood WA. Identifying existing Choosing Wisely recommendations of high relevance and importance to hematology. Am J Hematol 2016; 91:787-92. [PMID: 27152483 DOI: 10.1002/ajh.24412] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 04/26/2016] [Accepted: 05/03/2016] [Indexed: 01/03/2023]
Abstract
Choosing Wisely (CW) is a medical stewardship initiative led by the American Board of Internal Medicine Foundation in collaboration with professional medical societies in the United States. In an effort to learn from and leverage the work of others, the American Society of Hematology CW Task Force developed a method to identify and prioritize CW recommendations from other medical societies of high relevance and importance to patients with blood disorders and their physicians. All 380 CW recommendations were reviewed and assessed for relevance and importance. Relevance was assessed using the MORE(TM) relevance scale. Importance was assessed with regard to six guiding principles: harm avoidance, evidence, aggregate cost, relevance, frequency and impact. Harm avoidance was considered the most important principle. Ten highly relevant and important recommendations were identified from a variety of professional societies. Recommendations focused on decreasing unnecessary imaging, blood work, treatments and transfusions, as well as on increasing collaboration across disciplines and considering value when recommending treatments. Many CW recommendations have relevance beyond the society of origin. The methods developed by the ASH CW Task Force could be easily adapted by other Societies to identify additional CW recommendations of relevance and importance to their fields. Am. J. Hematol. 91:787-792, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Lisa K. Hicks
- St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
| | | | - Harriet Bering
- Harvard Vanguard Medical Associates; Beverly Massachusetts
| | | | | | - Vishal Kukreti
- University of Toronto, University Health Network; Toronto Ontario
| | - Alice Ma
- University of North Carolina; Chapel Hill North Carolina
| | | | | | - Julie A. Panepinto
- Medical College of Wisconsin/Children's Hospital of Wisconsin; Milwaukee Wisconsin
| | | | - Ravi Sarode
- UT Southwestern Medical Center; Dallas Texas
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Coene KLM, Roos AN, Scharnhorst V. Iatrogenic anemia/Twenty-five million liters of blood into the sewer: comment. J Thromb Haemost 2015; 13:1160-1. [PMID: 25557909 DOI: 10.1111/jth.12831] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 12/19/2014] [Indexed: 11/30/2022]
Affiliation(s)
- K L M Coene
- Clinical Laboratory, Catharina Ziekenhuis, Eindhoven, The Netherlands
| | - A N Roos
- Intensive Care, Catharina Ziekenhuis, Eindhoven, the Netherlands
| | - V Scharnhorst
- Clinical Laboratory, Catharina Ziekenhuis, Eindhoven, The Netherlands
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23
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van der Bom JG, Cannegieter SC. Hospital-acquired anemia: the contribution of diagnostic blood loss. J Thromb Haemost 2015; 13:1157-9. [PMID: 25728523 DOI: 10.1111/jth.12886] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Indexed: 11/29/2022]
Affiliation(s)
- J G van der Bom
- Center for Clinical Transfusion Research, Sanquin Research, Leiden, The Netherlands
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - S C Cannegieter
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
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