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Radford M, Estcourt LJ, Sirotich E, Pitre T, Britto J, Watson M, Brunskill SJ, Fergusson DA, Dorée C, Arnold DM. Restrictive versus liberal red blood cell transfusion strategies for people with haematological malignancies treated with intensive chemotherapy or radiotherapy, or both, with or without haematopoietic stem cell support. Cochrane Database Syst Rev 2024; 5:CD011305. [PMID: 38780066 PMCID: PMC11112982 DOI: 10.1002/14651858.cd011305.pub3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
BACKGROUND An estimated one-quarter to one-half of people diagnosed with haematological malignancies experience anaemia. There are different strategies for red blood cell (RBC) transfusions to treat anaemia. A restrictive transfusion strategy permits a lower haemoglobin (Hb) level whereas a liberal transfusion strategy aims to maintain a higher Hb. The most effective and safest strategy is unknown. OBJECTIVES To determine the efficacy and safety of restrictive versus liberal RBC transfusion strategies for people diagnosed with haematological malignancies treated with intensive chemotherapy or radiotherapy, or both, with or without a haematopoietic stem cell transplant (HSCT). SEARCH METHODS We searched for randomised controlled trials (RCTs) and non-randomised studies (NRS) in MEDLINE (from 1946), Embase (from 1974), CINAHL (from 1982), Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2023, Issue 2), and eight other databases (including three trial registries) to 21 March 2023. We also searched grey literature and contacted experts in transfusion for additional trials. There were no language, date or publication status restrictions. SELECTION CRITERIA We included RCTs and prospective NRS that evaluated restrictive versus liberal RBC transfusion strategies in children or adults with malignant haematological disorders receiving intensive chemotherapy or radiotherapy, or both, with or without HSCT. DATA COLLECTION AND ANALYSIS Two authors independently screened references, full-text reports of potentially relevant studies, extracted data from the studies, and assessed the risk of bias. Any disagreement was discussed and resolved with a third review author. Dichotomous outcomes were presented as a risk ratio (RR) with a 95% confidence interval (CI). Narrative syntheses were used for heterogeneous outcome measures. Review Manager Web was used to meta-analyse the data. Main outcomes of interest included: all-cause mortality at 31 to 100 days, quality of life, number of participants with any bleeding, number of participants with clinically significant bleeding, serious infections, length of hospital admission (days) and hospital readmission at 0 to 3 months. The certainty of the evidence was assessed using GRADE. MAIN RESULTS Nine studies met eligibility; eight RCTs and one NRS. Six hundred and forty-four participants were included from six completed RCTs (n = 560) and one completed NRS (n = 84), with two ongoing RCTs consisting of 294 participants (260 adult and 34 paediatric) pending inclusion. Only one completed RCT included children receiving HSCT (n = 6); the other five RCTs only included adults: 239 with acute leukaemia receiving chemotherapy and 315 receiving HSCT (166 allogeneic and 149 autologous). The transfusion threshold ranged from 70 g/L to 80 g/L for restrictive and from 80 g/L to 120 g/L for liberal strategies. Effects were reported in the summary of findings tables only for the trials that included adults to reduce indirectness due to the limited evidence contributed by the prematurely terminated paediatric trial. Evidence from RCTs Overall, there may be little to no difference in the number of participants who die within 31 to 100 days using a restrictive compared to a liberal transfusion strategy, but the evidence is very uncertain (three studies; 451 participants; RR 1.00, 95% CI 0.27 to 3.70, P=0.99; very low-certainty evidence). There may be little to no difference in quality of life at 0 to 3 months using a restrictive compared to a liberal transfusion strategy, but the evidence is very uncertain (three studies; 431 participants; analysis unable to be completed due to heterogeneity; very low-certainty evidence). There may be little to no difference in the number of participants who suffer from any bleeding at 0 to 3 months using a restrictive compared to a liberal transfusion strategy (three studies; 448 participants; RR 0.91, 95% CI 0.78 to 1.06, P = 0.22; low-certainty evidence). There may be little to no difference in the number of participants who suffer from clinically significant bleeding at 0 to 3 months using a restrictive compared to a liberal transfusion strategy (four studies; 511 participants; RR: 0.94, 95% CI 0.74 to 1.19, P = 0.60; low-certainty evidence). There may be little to no difference in the number of participants who experience serious infections at 0 to 3 months using a restrictive compared to a liberal transfusion strategy (three studies, 451 participants; RR: 1.20, 95% CI 0.93 to 1.55, P = 0.17; low-certainty evidence). A restrictive transfusion strategy likely results in little to no difference in the length of hospital admission at 0 to 3 months compared to a liberal strategy (two studies; 388 participants; analysis unable to be completed due to heterogeneity in reporting; moderate-certainty evidence). There may be little to no difference between hospital readmission using a restrictive transfusion strategy compared to a liberal transfusion strategy (one study, 299 participants; RR: 0.89, 95% CI 0.52 to 1.50; P = 0.65; low-certainty evidence). Evidence from NRS The evidence is very uncertain whether a restrictive RBC transfusion strategy: reduces the risk of death within 100 days (one study, 84 participants, restrictive 1 death; liberal 1 death; very low-certainty evidence); or decreases the risk of clinically significant bleeding (one study, 84 participants, restrictive 3; liberal 8; very low-certainty evidence). No NRS reported on the other eligible outcomes. AUTHORS' CONCLUSIONS Findings from this review were based on seven studies and 644 participants. Definite conclusions are challenging given the relatively few included studies, low number of included participants, heterogeneity of intervention and outcome reporting, and overall certainty of evidence. To increase the certainty of the true effect of a restrictive RBC transfusion strategy on clinical outcomes, there is a need for rigorously designed and executed studies. The evidence is largely based on two populations: adults with acute leukaemia receiving intensive chemotherapy and adults with haematologic malignancy requiring HSCT. Despite the addition of 405 participants from three RCTs to the previous review's results, there is still insufficient evidence to answer this review's primary outcome. If we assume a mortality rate of 3% within 100 days, we would need a total of 1492 participants to have an 80% chance of detecting, at a 5% level of significance, an increase in all-cause mortality from 3% to 6%. Further RCTs are needed overall, particularly in children.
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Affiliation(s)
- Michael Radford
- McMaster Centre for Transfusion Research, McMaster University, Hamilton, Canada
- Department of Oncology, Hamilton Health Sciences Centre, Hamilton, Canada
| | - Lise J Estcourt
- Haematology/Transfusion Medicine, NHS Blood and Transplant, Oxford, UK
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, UK
| | - Emily Sirotich
- Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Tyler Pitre
- Medicine, University of Toronto, Toronto, Canada
| | - Joanne Britto
- Oncology, Hamilton Health Sciences Centre, Hamilton, Canada
| | - Megan Watson
- Medicine, University of Toronto, Toronto, Canada
| | - Susan J Brunskill
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, UK
- Systematic Review Initiative, NHS Blood and Transplant, Oxford, UK
| | - Dean A Fergusson
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Carolyn Dorée
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, UK
- Systematic Review Initiative, NHS Blood and Transplant, Oxford, UK
| | - Donald M Arnold
- Division of Hematology and Thromboembolism, Department of Medicine, McMaster University, Ontario, Canada
- McMaster University, Hamilton, Canada
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De Santis GC, Costa L, Brunetta DM, Magnus MM, Benites BD, Rodrigues RDR, Alves SDOC, Rizzo SRCP, Rabello G, Langhi DM. Consensus of the Brazilian association of hematology, hemotherapy and cellular therapy on patient blood management: Anemia tolerance. Hematol Transfus Cell Ther 2024; 46 Suppl 1:S67-S71. [PMID: 38604928 PMCID: PMC11069063 DOI: 10.1016/j.htct.2024.02.018] [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: 04/13/2024] Open
Abstract
Anemia is a pathological condition in which the hemoglobin and red blood cell mass decrease; it is mainly defined by the concentration of hemoglobin in the blood. The World Health Organization guidelines establish specific values to define anemia in different population groups. Early detection of anemia can also be a valuable indicator of underlying medical conditions. Clinical studies have explored the relationship between perioperative anemia and morbidity, highlighting the need for more judicious therapeutic strategies, such as the use of Patient Blood Management, which aims to prevent and treat anemia in a personalized and effective way. Patient Blood Management emerges as a promising approach to dealing with anemia, recognizing that its correction through transfusion always carries risks and that personalized prevention and treatment can offer better outcomes for patients.
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Affiliation(s)
- 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
| | - Lorena Costa
- Universidade de Pernambuco (UPE), Recife, PE, Brazil
| | - Denise Menezes Brunetta
- Faculdade de Medicina da Universidade Federal do Ceará (FM UFC), Fortaleza, CE, Brazil; Centro de Hematologia e Hemoterapia do Ceará (HEMOCE), Fortaleza, CE, Brazil; Complexo Hospitalar da Universidade Federal do Ceará (EBSERH UFC), Fortaleza, CE, Brazil
| | - Mariana Munari Magnus
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas (Hemocentro UNICAMP), Campinas, SP, Brazil
| | - Bruno Deltreggia Benites
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas (Hemocentro UNICAMP), Campinas, SP, Brazil
| | - Roseny Dos Reis Rodrigues
- Hospital Israelita Albert Einstein são Paulo, São Paulo, SP, Brazil; Faculdade de Medicina da Universidade de São Paulo (FM USP), São Paulo, 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.
| | - Dante Mario Langhi
- Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM UNIFESP), São Paulo, SP, Brazil
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3
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Duarte CM, Lopes MI, Abecasis F. Transfusion policy in pediatric extracorporeal membrane oxygenation patients: Less could be more. Perfusion 2024; 39:96-105. [PMID: 35634987 DOI: 10.1177/02676591221105610] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
OBJECTIVE To evaluate a restrictive transfusion policy of red blood cells (RBC) and platelets in pediatric patients submitted to extracorporeal membrane oxygenation (ECMO). METHODS Retrospective descriptive study of pediatric patients supported with ECMO, from January 2010 to December 2019. Hemoglobin, platelet, lactate and mixed venous oxygen saturation (SvO2) values of each patient while on ECMO, were collected. Transfusion efficiency and tissue oxygenation were statistically evaluated comparing pre-transfusion hemoglobin, lactate and SvO2 with post-transfusion values. Ranges of hemoglobin and platelets were established, and the number of transfusions registered. The bleeding complications and outcome were documented. RESULTS Of a total of 1016 hemoglobin values, the mean value before transfusion was 8.6 g/dl. Hemoglobin and SvO2 increased significantly post-transfusion. Red blood cell transfusion varied with hemoglobin values: when hemoglobin value was less than 7 g/dl, 89% (41/46) were transfused but just 23% (181/794) when greater or equal to 7 g/dl. In the presence of active bleeding, the frequency of RBC transfusion increased from 32% to 62%, with hemoglobin between 7 g/dl and 8 g/dl.The mean value for platelet transfusion was 32 x 109/L. Thirty-eight (43%) platelet values between 20 x 109/L and 30x109/L, and 31 (40%) between 30 x 109/L and 40 x 109/L led to platelet transfusion; between 40 x 109/L and 50 x 109/L, only 7 (9%) prompted platelet transfusion.Comparing the 2010-2015 to 2016-2019 periods there was a decrease in RBC and platelet transfusion threshold with similar survival (p = .528). Survival to discharge was 68%. CONCLUSIONS Using a restrictive RBC and platelet transfusion policy was safe and allowed a good outcome in this case series. The presence of active bleeding was an important decision factor when hemoglobin was above 7 g/dl and platelets were above 30 x 109/L.
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Affiliation(s)
- Catarina Marques Duarte
- Pediatric Department Lisbon Academic Medical Center, Hospital Santa Maria (CHULN), Lisbon, Portugal
| | - Maria Inȇs Lopes
- Lisbon Academic Medical Center, Hospital Santa Maria (CHULN), Lisbon, Portugal
| | - Francisco Abecasis
- Pediatric Intensive Care Unit, Pediatric Department, Lead of Pediatric Interhospital Transport System and Neonatal and Pediatric ECMO program, Hospital Santa Maria (CHULN), Portugal
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4
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Morris FJD, Fung YL, Craswell A, Chew MS. Outcomes following perioperative red blood cell transfusion in patients undergoing elective major abdominal surgery: a systematic review and meta-analysis. Br J Anaesth 2023; 131:1002-1013. [PMID: 37741720 DOI: 10.1016/j.bja.2023.08.032] [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: 03/24/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 09/25/2023] Open
Abstract
BACKGROUND Perioperative red blood cell transfusion is a double-edged sword for surgical patients. While transfusion of red cells can increase oxygen delivery by increasing haemoglobin levels, its impact on short- and long-term postoperative outcomes, particularly in patients undergoing elective major abdominal surgery, is unclear. METHODS We conducted a systematic review and meta-analysis on the effect of perioperative blood transfusions on postoperative outcomes in elective major abdominal surgery. PubMed, Cochrane, and Scopus databases were searched for studies with data collected between January 1, 2000 and June 6, 2020. The primary outcome was short-term mortality, including all-cause 30-day or in-hospital mortality. Secondary outcomes included long-term all-cause mortality, any morbidity, infectious complications, overall survival, and recurrence-free survival. No randomised controlled trials were found. Thirty-nine observational studies were identified, of which 37 were included in the meta-analysis. RESULTS Perioperative blood transfusion was associated with short-term all-cause mortality (odds ratio [OR] 2.72, 95% confidence interval [CI] 1.89-3.91, P<0.001), long-term all-cause mortality (hazard ratio 1.35, 95% CI 1.09-1.67, P=0.007), any morbidity (OR 2.18, 95% CI 1.81-2.64, P<0.001), and infectious complications (OR 1.90, 95% CI 1.60-2.26, P<0.001). Perioperative blood transfusion remained associated with short-term mortality in the sensitivity analysis after excluding studies that did not control for preoperative anaemia (OR 2.27, 95% CI 1.59-3.24, P<0.001). CONCLUSIONS Perioperative blood transfusion in patients undergoing elective major abdominal surgery is associated with poorer short- and long-term postoperative outcomes. This highlights the need to implement patient blood management strategies to manage and preserve the patient's own blood and reduce the need for red blood cell transfusion. TRIAL REGISTRATION PROSPERO (CRD42021254360).
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Affiliation(s)
- Fraser J D Morris
- School of Health, University of the Sunshine Coast, Sippy Downs, QLD, Australia.
| | - Yoke-Lin Fung
- School of Health, University of the Sunshine Coast, Sippy Downs, QLD, Australia
| | - Alison Craswell
- School of Health, University of the Sunshine Coast, Sippy Downs, QLD, Australia
| | - Michelle S Chew
- Department of Anaesthesia and Intensive Care, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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Keogh S, Dhanani J, Levido A, Gracie C, Ilushin V, Palmer J, Doubrovsky A, Parker SL, Pintara A, Huygens F, Coyer F. Evaluation of a closed loop-blood sampling system in intensive care: A pilot randomised controlled trial. The ENCLOSE trial. Intensive Crit Care Nurs 2023; 75:103364. [PMID: 36528456 DOI: 10.1016/j.iccn.2022.103364] [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: 09/14/2022] [Revised: 11/14/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To test the feasibility of conducting a randomised controlled trial to evaluate the impact of a closed-loop blood sampling system and blood conservation bundle. METHODS Single site, parallel group, pilot randomised control trial comparing open system sampling to closed system sampling and conservation bundle aligned with national guidelines. Randomisation sequence was generated by an independent statistician and allocation concealment maintained via sealed opaque envelopes. The study setting was the general intensive care unit of a major metropolitan public hospital in Queensland, Australia. Participants were ≥ 18 years who had an arterial catheter inserted in intensive care. Main outcome measures included trial feasibility, blood sample loss, haematocrit (HCT) change, and packed red blood cell transfusion use. RESULTS Eighty patients were randomised (n = 39 open group, n = 41 closed group). Characteristics in each group were equal at baseline with overall median age 60 years (IQR 48.6-70.4), 58 % male, and median APACHE II score 16 (IQR 11-22). The proportion of patients eligible was 29 % and missed eligible was 65 %. Otherwise, feasibility criteria were met with proportion of eligible patients agreeing to enrolment 99 %, 100 % of patients receiving allocated treatment; only 1 % of data missing. Analysis demonstrated a significant reduction in mean daily blood sample losses (open 32.7 (SD 1.58) mL vs closed 15.5 (SD 5.79) mL, t = -8.454, df = 78, p < 0.001). CONCLUSIONS A large, multi-site trial is feasible with enhanced eligibility criteria, increased recruitment support. The intervention reduced daily blood sample volumes and transfusion use. Further trials are required to provide both effectiveness and implementation outcomes.
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Affiliation(s)
- Samantha Keogh
- School of Nursing and Centre for Healthcare Transformation, Queensland University of Technology, Brisbane, Australia; Centre for Nursing and Midwifery Research and Intensive Care Services, Royal Brisbane and Women's Hospital, Brisbane, Australia; Alliance for Vascular Access Teaching and Research (AVATAR), School of Nursing and Midwifery, Griffith University, Brisbane, Australia.
| | - Jayesh Dhanani
- Centre for Nursing and Midwifery Research and Intensive Care Services, Royal Brisbane and Women's Hospital, Brisbane, Australia; UQ Centre for Clinical Research, Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Annabel Levido
- School of Nursing and Centre for Healthcare Transformation, Queensland University of Technology, Brisbane, Australia; Centre for Nursing and Midwifery Research and Intensive Care Services, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Chris Gracie
- Centre for Nursing and Midwifery Research and Intensive Care Services, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Vladislav Ilushin
- Centre for Nursing and Midwifery Research and Intensive Care Services, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Jennifer Palmer
- Centre for Nursing and Midwifery Research and Intensive Care Services, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Anna Doubrovsky
- School of Nursing and Centre for Healthcare Transformation, Queensland University of Technology, Brisbane, Australia
| | - Suzanne L Parker
- UQ Centre for Clinical Research, Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Alexander Pintara
- Centre for Immunology and Infection Control, Queensland University of Technology, Brisbane, Australia
| | - Flavia Huygens
- Centre for Immunology and Infection Control, Queensland University of Technology, Brisbane, Australia
| | - Fiona Coyer
- School of Nursing and Centre for Healthcare Transformation, Queensland University of Technology, Brisbane, Australia; Centre for Nursing and Midwifery Research and Intensive Care Services, Royal Brisbane and Women's Hospital, Brisbane, Australia
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Solhpour A, Kumar S, Koch MJ, Doré S. Impact of blood component transfusions, tranexamic acid and fluids on subarachnoid hemorrhage outcomes. BRAIN HEMORRHAGES 2022. [DOI: 10.1016/j.hest.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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7
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Tomić Mahečić T, Brooks R, Noitz M, Sarmiento I, Baronica R, Meier J. The Limits of Acute Anemia. J Clin Med 2022; 11:jcm11185279. [PMID: 36142930 PMCID: PMC9505011 DOI: 10.3390/jcm11185279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/04/2022] [Accepted: 09/05/2022] [Indexed: 01/28/2023] Open
Abstract
For many years, physicians’ approach to the transfusion of allogeneic red blood cells (RBC) was not individualized. It was accepted that a hemoglobin concentration (Hb) of less than 10 g/dL was a general transfusion threshold and the majority of patients were transfused immediately. In recent years, there has been increasing evidence that even significantly lower hemoglobin concentrations can be survived in the short term without sequelae. This somehow contradicts the observation that moderate or mild anemia is associated with relevant long-term morbidity and mortality. To resolve this apparent contradiction, it must be recognized that we have to avoid acute anemia or treat it by alternative methods. The aim of this article is to describe the physiological limits of acute anemia, match these considerations with clinical realities, and then present “patient blood management” (PBM) as the therapeutic concept that can prevent both anemia and unnecessary transfusion of RBC concentrates in a clinical context, especially in Intensive Care Units (ICU). This treatment concept may prove to be the key to high-quality patient care in the ICU setting in the future.
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Affiliation(s)
- Tina Tomić Mahečić
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Center Zagreb—“Rebro”, 10000 Zagreb, Croatia
| | - Roxane Brooks
- Department of Anesthesiology and Critical Care Medicine, Kepler University Hospital GmbH, Johannes Kepler University, 4040 Linz, Austria
| | - Matthias Noitz
- Department of Anesthesiology and Critical Care Medicine, Kepler University Hospital GmbH, Johannes Kepler University, 4040 Linz, Austria
| | - Ignacio Sarmiento
- Department of Anesthesiology, Clinica Santa Maria, Santiago 7520378, Chile
| | - Robert Baronica
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Center Zagreb—“Rebro”, 10000 Zagreb, Croatia
| | - Jens Meier
- Department of Anesthesiology and Critical Care Medicine, Kepler University Hospital GmbH, Johannes Kepler University, 4040 Linz, Austria
- Correspondence:
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8
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Maimaitiming M, Zhang C, Xie J, Zheng Z, Luo H, Ooi OC. Impact of restrictive red blood cell transfusion strategy on thrombosis-related events: A meta-analysis and systematic review. Vox Sang 2022; 117:887-899. [PMID: 35332942 DOI: 10.1111/vox.13274] [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: 09/22/2021] [Revised: 03/03/2022] [Accepted: 03/09/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND AND OBJECTIVES There is an ongoing controversy regarding the risks of restrictive and liberal red blood cell (RBC) transfusion strategies. This meta-analysis assessed whether transfusion at a lower threshold was superior to transfusion at a higher threshold, with regard to thrombosis-related events, that is, whether these outcomes can benefit from a restrictive transfusion strategy is debated. MATERIALS AND METHODS We searched PubMed, Cochrane Central Register of Controlled Trials and Scopus from inception up to 31 July 2021. We included randomized controlled trials (RCTs) in any clinical setting that evaluated the effects of restrictive versus liberal RBC transfusion in adults. We used random-effects models to calculate the risk ratios (RRs) and 95% confidence intervals (CIs) based on pooled data. RESULTS Thirty RCTs involving 17,334 participants were included. The pooled RR for thromboembolic events was 0.65 (95% CI 0.44-0.94; p = 0.020; I2 = 0.0%, very low-quality evidence), favouring the restrictive strategy. There were no significant differences in cerebrovascular accidents (RR = 0.83; 95% CI 0.64-1.09; p = 0.180; I2 = 0.0%, very low-quality evidence) or myocardial infarction (RR = 1.05; 95% CI 0.87-1.26; p = 0.620; I2 = 0.0%, low-quality evidence). Subgroup analyses showed that a restrictive (relative to liberal) strategy reduced (1) thromboembolic events in RCTs conducted in North America and (2) myocardial infarctions in the subgroup of RCTs where the restrictive transfusion threshold was 7 g/dl but not in the 8 g/dl subgroup (with a liberal transfusion threshold of 10 g/dl in both subgroups). CONCLUSIONS A restrictive (relative to liberal) transfusion strategy may be effective in reducing venous thrombosis but not arterial thrombosis.
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Affiliation(s)
- Mairehaba Maimaitiming
- School of Management, University of Science and Technology of China, Hefei, Anhui, China
| | - Chenxiao Zhang
- Lee Kong Chian School of Business, Singapore Management University, Singapore
| | - Jingui Xie
- School of Management, Technical University of Munich, Heilbronn, Germany.,Munich Data Science Institute, Technical University of Munich, Munich, Germany
| | - Zhichao Zheng
- Lee Kong Chian School of Business, Singapore Management University, Singapore
| | - Haidong Luo
- Department of Cardiac, Thoracic and Vascular Surgery, National University Hospital, Singapore
| | - Oon Cheong Ooi
- Department of Cardiac, Thoracic and Vascular Surgery, National University Hospital, Singapore
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9
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Hematologic Risk Assessment. Perioper Med (Lond) 2022. [DOI: 10.1016/b978-0-323-56724-4.00010-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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10
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Perioperative Care of Patients Undergoing Major Complex Spinal Instrumentation Surgery: Clinical Practice Guidelines From the Society for Neuroscience in Anesthesiology and Critical Care. J Neurosurg Anesthesiol 2021; 34:257-276. [PMID: 34483301 DOI: 10.1097/ana.0000000000000799] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/14/2021] [Indexed: 11/25/2022]
Abstract
Evidence-based standardization of the perioperative management of patients undergoing complex spine surgery can improve outcomes such as enhanced patient satisfaction, reduced intensive care and hospital length of stay, and reduced costs. The Society for Neuroscience in Anesthesiology and Critical Care (SNACC) tasked an expert group to review existing evidence and generate recommendations for the perioperative management of patients undergoing complex spine surgery, defined as surgery on 2 or more thoracic and/or lumbar spine levels. Institutional clinical management protocols can be constructed based on the elements included in these clinical practice guidelines, and the evidence presented.
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11
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Moran JL. Multivariate meta-analysis of critical care meta-analyses: a meta-epidemiological study. BMC Med Res Methodol 2021; 21:148. [PMID: 34275460 PMCID: PMC8286437 DOI: 10.1186/s12874-021-01336-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/21/2021] [Indexed: 12/26/2022] Open
Abstract
Background Meta-analyses typically consider multiple outcomes and report univariate effect sizes considered as independent. Multivariate meta-analysis (MVMA) incorporates outcome correlation and synthesises direct evidence and related outcome estimates within a single analysis. In a series of meta-analyses from the critically ill literature, the current study contrasts multiple univariate effect estimates and their precision with those derived from MVMA. Methods A previous meta-epidemiological study was used to identify meta-analyses with either one or two secondary outcomes providing sufficient detail to structure bivariate or tri-variate MVMA, with mortality as primary outcome. Analysis was performed using a random effects model for both odds ratio (OR) and risk ratio (RR); borrowing of strength (BoS) between multivariate outcome estimates was reported. Estimate comparisons, β coefficients, standard errors (SE) and confidence interval (CI) width, univariate versus multivariate, were performed using Lin’s concordance correlation coefficient (CCC). Results In bivariate meta-analyses, for OR (n = 49) and RR (n = 48), there was substantial concordance (≥ 0.69) between estimates; but this was less so for tri-variate meta-analyses for both OR (n = 25; ≥ 0.38) and RR (≥ -0.10; n = 22). A variable change in the multivariate precision of primary mortality outcome estimates compared with univariate was present for both bivariate and tri-variate meta-analyses and for metrics. For second outcomes, precision tended to decrease and CI width increase for bivariate meta-analyses, but was variable in the tri-variate. For third outcomes, precision increased and CI width decreased. In bivariate meta-analyses, OR coefficient significance reversal, univariate versus MVMA, occurred once for mortality and 6 cases for second outcomes. RR coefficient significance reversal occurred in 4 cases; 2 were discordant with OR. For tri-variate OR meta-analyses reversal of coefficient estimate significance occurred in two cases for mortality, nine cases for second and 7 cases for third outcomes. In RR meta-analyses significance reversals occurred for mortality in 2 cases, 6 cases for second and 3 cases for third; there were 7 discordances with OR. BoS was greater in trivariate MVMAs compared with bivariate and for OR versus RR. Conclusions MVMA would appear to be the preferred solution to multiple univariate analyses; parameter significance changes may occur. Analytic metric appears to be a determinant.
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Affiliation(s)
- John L Moran
- Department of Intensive Care Medicine, The Queen Elizabeth Hospital, Woodville, SA, 5011, Australia.
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Jentzer JC, Lawler PR, Katz JN, Wiley BM, Murphree DH, Bell MR, Barsness GW, Kor DJ. Red blood cell transfusion threshold and mortality in cardiac intensive care unit patients. Am Heart J 2021; 235:24-35. [PMID: 33497698 DOI: 10.1016/j.ahj.2021.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 01/21/2021] [Indexed: 01/28/2023]
Abstract
BACKGROUND The benefit of red blood cell (RBC) transfusion in anemic critically-ill patients with cardiovascular disease is uncertain, as is the optimal threshold at which RBC transfusion should be considered. We sought to examine the association between RBC transfusion and mortality stratified by nadir Hgb level and admission diagnosis among cardiac intensive care unit (CICU) patients. METHODS Retrospective single-center cohort of 11,754 CICU patients admitted between 2007 and 2018. The association between RBC transfusion and hospital mortality at each nadir Hgb (<8 g/dL, 8-9.9 g/dL, ≥10 g/dL) was assessed using multivariable logistic regression adjusted for the propensity to receive RBC transfusion. RESULTS The study population had a mean age of 68±15 years, including 38% females; 1,134 (11.4%) received RBC transfusion. Admission diagnoses included: acute coronary syndrome , 42%; heart failure, 50%; cardiac arrest , 12%; and cardiogenic shock , 12%. Patients who received RBC transfusion had higher crude hospital mortality (19% vs. 8%, P<.001). RBC transfusion was associated with lower adjusted hospital mortality in patients with nadir Hgb <8 g/dL after propensity adjustment, including subgroups with acute coronary syndrome, cardiac arrest, or cardiogenic shock (all P <.01). RBC transfusion was not associated with lower adjusted hospital mortality in any subgroup of patients with nadir Hgb ≥8 g/dL. CONCLUSIONS These observational data suggest the use of a Hgb threshold <8 g/dL for RBC transfusion in most CICU patients, although we could not exclude a potential benefit of RBC transfusion at a nadir Hgb of 8 to 9.9 g/dL; we did not observe any benefit from RBC transfusion at a nadir Hgb ≥10 g/dL.
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Impact of Blood Product Transfusions on the Risk of ICU-Acquired Infections in Septic Shock. Crit Care Med 2021; 49:912-922. [PMID: 33591005 DOI: 10.1097/ccm.0000000000004887] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVES Transfusions of blood products are common in critically ill patients and have a potential for immunomodulation. The aim of this study is to address the impact of transfusion of blood products on the susceptibility to ICU-acquired infections in the high-risk patients with septic shock. DESIGN A single-center retrospective study over a 10-year period (2008-2017). SETTING A medical ICU of a tertiary-care center. PATIENTS All consecutive patients diagnosed for septic shock within the first 48 hours of ICU admission were included. Patients who were discharged or died within the first 48 hours were excluded. INTERVENTIONS RBC, platelet, and fresh frozen plasma transfusions collected up to 24 hours prior to the onset of ICU-acquired infection. MEASUREMENTS AND MAIN RESULTS During the study period, 1,152 patients were admitted for septic shock, with 893 patients remaining alive in the ICU after 48 hours of management. A first episode of ICU-acquired infection occurred in 28.3% of the 48-hour survivors, with a predominance of pulmonary infections (57%). Patients with ICU-acquired infections were more likely to have received RBC, platelet, and fresh frozen plasma transfusions. In a multivariate Cox cause-specific analysis, transfusions of platelets (cause-specific hazard ratio = 1.55 [1.09-2.20]; p = 0.01) and fresh frozen plasma (cause-specific hazard ratio = 1.38 [0.98-1.92]; p = 0.05) were independently associated with the further occurrence of ICU-acquired infections. CONCLUSIONS Transfusions of platelets and fresh frozen plasma account for risk factors of ICU-acquired infections in patients recovering from septic shock. The occurrence of ICU-acquired infections should be considered as a relevant endpoint in future studies addressing the indications of transfusions in critically ill patients.
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Zimmermann R, Becker A, Hackstein H, Ganslandt T. Erstellung zuverlässiger Erythrozytenkonzentrat-Bedarfslisten für Operationen und Interventionen aus Data-Warehouse-Daten und der patientenbezogenen Chargendokumentation von Blutkomponenten. TRANSFUSIONSMEDIZIN 2021. [DOI: 10.1055/a-1256-4465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
ZusammenfassungDas Versäumnis, transfusionsvorbereitende Diagnostik durchzuführen und eine ausreichende Anzahl von Blutkomponenten vor der Operation zu bestellen, führt zunehmend zu klinischen Notfällen und vermeidbaren Risiken für die Patienten. Die eigentlich obligatorische Erstellung von Blutbedarfslisten scheitert oft an der Verfügbarkeit geeigneter Daten. Das Universitätsklinikum Erlangen ist ein Krankenhaus der Tertiärversorgung mit 1400 Betten. Hier werden seit 2010 kontinuierlich alle relevanten Daten zur Interpretation von Mustern bei der Verwendung von Blutbestandteilen erhoben. Wir sind in der Lage, die klinischen Data-Warehouse-Komponenten der persönlichen Daten der Empfänger von Erythrozytenkonzentraten (EK), die Codes der stationären Patienten im G-DRG-System (G-DRG: German Diagnosis Related Group), ICD-Codes, OPS-Codes und die Daten der EK-Komponenten aus dem IT-System der Blutbank zu integrieren. Die erhaltenen DRGs, ICD-Codes und OPS-Codes werden mit den Daten des
Blutkomponentenverbrauchs auf individueller Basis verknüpft. Analysen können sowohl im gesamten Krankenhaus als auch in Bezug auf bestimmte Abteilungen durchgeführt werden. Die laufende Verfeinerung der Datenbankabfragen verbessert die Fähigkeit, den Blutbedarf für Standardoperationen und Interventionen korrekt abzuschätzen. Die Ergebnisse weichen zum Teil erheblich von den Schätzungen der Operateure hinsichtlich der Wahrscheinlichkeit einer Transfusion ab, oftmals wird die Wahrscheinlichkeit einer Transfusion unterschätzt. Die korrekte Einhaltung der 10-prozentigen Transfusionswahrscheinlichkeitsgrenze für die Frage der frühen präoperativen Bereitstellung von Kreuzblut kann durch solche Abfragen verbessert werden. Dem Phänomen der „verzögerten Transfusion“ entgegenzuwirken, wird zu einer immer wichtigeren Aufgabe für den klinisch tätigen transfusionsmedizinischen Arzt. Die Erstellung von Statistiken über die Transfusionswahrscheinlichkeit durch die Verknüpfung von
Data-Warehouse-Daten und Chargendokumentationsdaten aus Blutbanken kann die notwendigen Werkzeuge bereitstellen.
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Affiliation(s)
- Robert Zimmermann
- Universitätsklinikum Erlangen, Transfusionsmedizinische und Hämostaseologische Abteilung, Erlangen, Deutschland
| | - Andreas Becker
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Lehrstuhl für Medizinische Informatik, Erlangen, Deutschland
| | - Holger Hackstein
- Universitätsklinikum Erlangen, Transfusionsmedizinische und Hämostaseologische Abteilung, Erlangen, Deutschland
| | - Thomas Ganslandt
- Ruprecht-Karls-Universität Heidelberg, Heinrich Lanz-Zentrum für Digitale Gesundheit, Medizinische Fakultät, Mannheim, Deutschland
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15
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Elhenawy AM, Meyer SR, Bagshaw SM, MacArthur RG, Carroll LJ. Role of preoperative intravenous iron therapy to correct anemia before major surgery: a systematic review and meta-analysis. Syst Rev 2021; 10:36. [PMID: 33485392 PMCID: PMC7824930 DOI: 10.1186/s13643-021-01579-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 01/02/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Preoperative anemia is a common comorbidity that often necessitates allogeneic blood transfusion (ABT). As there is a risk associated with blood transfusions, preoperative intravenous iron (IV) has been proposed to increase the hemoglobin to reduce perioperative transfusion; however, randomized controlled trials (RCT) investigating this efficacy for IV iron are small, limited, and inconclusive. Consequently, a meta-analysis that pools these studies may provide new and clinically useful information. METHODS/DESIGN Databases of MEDLINE, EMBASE, EBM Reviews; Cochrane-controlled trial registry; Scopus; registries of health technology assessment and clinical trials; Web of Science; ProQuest Dissertations and Theses; Clinicaltrials.gov; and Conference Proceedings Citation Index-Science (CPCI-S) were searched. Also, we screened all the retrieved reference lists. SELECTION CRITERIA Titles and abstracts were screened for relevance (i.e., relevant, irrelevant, or potentially relevant). Then, we screened full texts of those citations identified as potentially applicable. RESULTS Our search found 3195 citations and ten RCTs (1039 participants) that met our inclusion criteria. Preoperative IV iron supplementation significantly decreases ABT by 16% (risk ratio (RR): 0.84, 95% confidence interval [CI]: 0.71, 0.99, p = 0.04). In addition, preoperatively, hemoglobin levels increased after receiving IV iron (mean difference [MD] between the study groups: 7.15 g/L, 95% CI: 2.26, 12.04 g/L, p = 0.004) and at follow-up > 4 weeks postoperatively (MD: 6.46 g/L, 95% CI: 3.10, 9.81, p = 0.0002). Iron injection was not associated with increased incidence of non-serious or serious adverse effects across groups (RR: 1.13, 95% CI: 0.78, 1.65, p = 0.52) and (RR: 0.96, 95% CI: 0.44, 2.10, p = 0.92) respectively. CONCLUSIONS With moderate certainty, due to the high risk of bias in some studies in one or two domains, we found intravenous iron supplementation is associated with a significant decrease in the blood transfusions rate, and modest hemoglobin concentrations rise when injected pre-surgery compared with placebo or oral iron supplementation. However, further full-scale randomized controlled trials with robust methodology are required. In particular, the safety, quality of life, and cost-effectiveness of different intravenous iron preparations require further evaluation.
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Affiliation(s)
- Abdelsalam M Elhenawy
- Division of Cardiac Surgery, Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada. .,Division of Cardiothoracic Surgery, Al Azhar University, Cairo, Egypt.
| | - Steven R Meyer
- Division of Cardiac Surgery, Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Sean M Bagshaw
- Division of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Roderick G MacArthur
- Division of Cardiac Surgery, Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Linda J Carroll
- School of Public Health, University of Alberta, Edmonton, Alberta, Canada
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16
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Wise RD, de Vasconcellos K, Gopalan D, Ahmed N, Alli A, Joubert I, Kabambi KF, Mathiva LR, Mdladla N, Mer M, Miller M, Mrara B, Omar S, Paruk F, Richards GA, Skinner D, von Rahden R. Critical Care Society of Southern Africa adult patient blood management guidelines: 2019 Round-table meeting, CCSSA Congress, Durban, 2018. SOUTHERN AFRICAN JOURNAL OF CRITICAL CARE 2020; 36:10.7196/SAJCC.2020.v36i1b.440. [PMID: 37415775 PMCID: PMC10321416 DOI: 10.7196/sajcc.2020.v36i1b.440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/28/2020] [Indexed: 07/08/2023] Open
Abstract
The CCSSA PBM Guidelines have been developed to improve patient blood management in critically ill patients in southern Africa. These consensus recommendations are based on a rigorous process by experts in the field of critical care who are also practicing in South Africa (SA). The process comprised a Delphi process, a round-table meeting (at the CCSSA National Congress, Durban, 2018), and a review of the best available evidence and international guidelines. The guidelines focus on the broader principles of patient blood management and incorporate transfusion medicine (transfusion guidelines), management of anaemia, optimisation of coagulopathy, and administrative and ethical considerations. There are a mix of low-middle and high-income healthcare structures within southern Africa. Blood products are, however, provided by the same not-for-profit non-governmental organisations to both private and public sectors. There are several challenges related to patient blood management in SA due most notably to a high incidence of anaemia, a frequent shortage of blood products, a small donor population, and a healthcare system under financial strain. The rational and equitable use of blood products is important to ensure best care for as many critically ill patients as possible. The summary of the recommendations provides key practice points for the day-to-day management of critically ill patients. A more detailed description of the evidence used to make these recommendations follows in the full clinical guidelines section.
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Affiliation(s)
- R D Wise
- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - K de Vasconcellos
- Department of Critical Care, King Edward VIII Hospital, Durban; Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - D Gopalan
- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - N Ahmed
- Surgical ICU, Tygerberg Academic Hospital; Department of Surgical Sciences and Department of Anaesthesiology and Critical Care, Stellenbosch University, Cape Town, South Africa
| | - A Alli
- Department of Anaesthesia, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - I Joubert
- Division of Critical Care, Department of Anaesthesia and Perioperative Medicine, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
| | - K F Kabambi
- Department of Anaesthesia and Critical Care, Nelson Mandela Academic Hospital, Mthatha; Department of Surgery, Faculty of Health Sciences, Walter Sisulu University, Mthatha, South Africa
| | - L R Mathiva
- Intensive Care Unit, Chris Hani Baragwanath Academic Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - N Mdladla
- Dr George Mukhari Academic Hospital; Sefako Makgatho Health Sciences University, Pretoria, South Africa
| | - M Mer
- Department of Medicine, Divisions of Critical Care and Pulmonology, Charlotte Maxeke Johannesburg Academic Hospital and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - M Miller
- Department of Anaesthesia and Peri-operative Medicine, Division of Critical Care, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
| | - B Mrara
- Anaesthesia Department, Walter Sisulu University, Mthatha, South Africa
| | - S Omar
- Department of Critical Care, Chris Hani Baragwanath Academic Hospital and School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - F Paruk
- Department of Critical Care, Steve Biko Academic Hospital and Critical Care, School of Medicine, University of Pretoria, South Africa
| | - G A Richards
- Department of Critical Care, Charlotte Maxeke Johannesburg Academic Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - D Skinner
- Department of Critical Care, King Edward VIII Hospital, Durban; Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - R von Rahden
- Private practice (Critical Care), Rodseth and Partners, Pietermaritzburg, South Africa
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17
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Faria JCP, Cansian B, Arruda ÉEC, Victorino CA, Szulman A. Prescription of red cell concentrates by emergency physicians. ACTA ACUST UNITED AC 2020; 66:466-471. [PMID: 32578780 DOI: 10.1590/1806-9282.66.4.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 11/24/2019] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To evaluate the adequacy of the prescription of red cell concentrates by emergency physicians. METHODS A cross-sectional study based on the survey of transfusion requests records completed by emergency physicians, from May/2018 to April/2019, in an emergency hospital. Adequacy in the indication, volume, and subtype (filtered, irradiated, and washed) of prescribed erythrocytes were evaluated. To compare the qualitative data, we used the χ2 test. The significance level adopted was 5%. RESULTS One thousand and twenty-two transfusions were evaluated. The indication, volume, and subtypes were correct in 72.7%, 45.9%, and 81.6% respectively. Transfusion in symptomatic patients presented superior adequacy when compared to asymptomatic individuals with significant statistical difference (indication: 79,6% vs 67.2%, p <0.001; Volume: 63.5% vs 31.7%, p <0.001; subtype: 85.3% vs 78.7%, p 0.006). Among clinical situations, there were more errors in sepsis (39.7%) and pneumonia (36.3%). More than half of the prescriptions presented excessive volume, raising the risk of circulatory overload, observing that the mean age was 60.6 years. The specific analysis of the prescribed subtypes showed adequacy of 17.9% in the filtered, 1.7% in the irradiated, and none in the washed. Thirty transfusions should have been filtered, but the prescriber did not request the subtype. CONCLUSION One hypothesis for the observed inaccuracies is inadequate medical training on the subject, both in undergraduate and medical residency, associated with a lack of continuing education on transfusion protocols. The transfusion Committee received the results of this study with a proposal for continuing education measures on transfusion hemotherapy.
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Affiliation(s)
- João Carlos Pina Faria
- . Mestre em Ciências da Saúde pela Faculdade de Medicina do ABC , Santo André , SP , Brasil.,. Médico preceptor do Centro Universitário Saúde ABC ( Faculdade de Medicina do ABC ), Santo André , SP , Brasil.,. Docente do curso de Medicina da Universidade Nove de Julho , São Paulo , SP , Brasil
| | - Bianca Cansian
- . Discente do curso de Medicina da Universidade Nove de Julho , São Paulo , SP , Brasil
| | - Éric Edmur Camargo Arruda
- . Docente do curso de Medicina da Universidade Nove de Julho , São Paulo , SP , Brasil.,. Mestre em Ciências da Reabilitação pela Universidade Nove de Julho , São Paulo , SP , Brasil
| | - Camila Augusta Victorino
- . Mestre em Ciências da Saúde pela Faculdade de Medicina do ABC , Santo André , SP , Brasil.,. Médica docente do curso de Medicina da Universidade Nove de Julho . São Paulo , SP , Brasil
| | - Alexandre Szulman
- . Médico hematologista da Colsan ( Associação Beneficente de Coleta de Sangue ), São Paulo , SP , Brasil.,. Responsável técnico da agência transfusional do Hospital e Pronto-Socorro Central de São Bernardo do Campo , São Bernardo do Campo , SP , Brasil
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18
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Trentino KM, Farmer SL, Leahy MF, Sanfilippo FM, Isbister JP, Mayberry R, Hofmann A, Shander A, French C, Murray K. Systematic reviews and meta-analyses comparing mortality in restrictive and liberal haemoglobin thresholds for red cell transfusion: an overview of systematic reviews. BMC Med 2020; 18:154. [PMID: 32576194 PMCID: PMC7313211 DOI: 10.1186/s12916-020-01614-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 04/30/2020] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND There are no overviews of systematic reviews investigating haemoglobin thresholds for transfusion. This is important as the literature on transfusion thresholds has grown considerably in recent years. Our aim was to synthesise evidence from systematic reviews and meta-analyses of the effects of restrictive and liberal transfusion strategies on mortality. METHODS This was a systematic review of systematic reviews (overview). We searched MEDLINE, Embase, Web of Science Core Collection, PubMed, Google Scholar, and the Joanna Briggs Institute EBP Database, from 2008 to 2018. We included systematic reviews and meta-analyses of randomised controlled trials comparing mortality in patients assigned to red cell transfusion strategies based on haemoglobin thresholds. Two independent reviewers extracted data and assessed methodological quality. We assessed the methodological quality of included reviews using AMSTAR 2 and the quality of evidence pooled using an algorithm to assign GRADE levels. RESULTS We included 19 systematic reviews reporting 33 meta-analyses of mortality outcomes from 53 unique randomised controlled trials. Of the 33 meta-analyses, one was graded as high quality, 15 were moderate, and 17 were low. Of the meta-analyses presenting high- to moderate-quality evidence, 12 (75.0%) reported no statistically significant difference in mortality between restrictive and liberal transfusion groups and four (25.0%) reported significantly lower mortality for patients assigned to a restrictive transfusion strategy. We found few systematic reviews addressed clinical differences between included studies: variation was observed in haemoglobin threshold concentrations, the absolute between group difference in haemoglobin threshold concentration, time to randomisation (resulting in transfusions administered prior to randomisation), and transfusion dosing regimens. CONCLUSIONS Meta-analyses graded as high to moderate quality indicate that in most patient populations no difference in mortality exists between patients assigned to a restrictive or liberal transfusion strategy. TRIAL REGISTRATION PROSPERO CRD42019120503.
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Affiliation(s)
- Kevin M. Trentino
- School of Population and Global Health, The University of Western Australia, Perth, Australia
- Data and Digital Innovation, East Metropolitan Health Service, Perth, Australia
| | - Shannon L. Farmer
- Medical School and Division of Surgery, The University of Western Australia, Perth, Australia
- School of Health Sciences and Graduate Studies, Curtin University, Bentley, Australia
- Department of Haematology, PathWest Laboratory Medicine, Royal Perth Hospital, Perth, Australia
| | - Michael F. Leahy
- Department of Haematology, PathWest Laboratory Medicine, Royal Perth Hospital, Perth, Australia
- Medical School, The University of Western Australia, Perth, Australia
| | - Frank M. Sanfilippo
- School of Population and Global Health, The University of Western Australia, Perth, Australia
| | | | - Rhonda Mayberry
- Library and Information Service, South Metropolitan Health Service, Murdoch, Australia
| | - Axel Hofmann
- School of Health Sciences and Graduate Studies, Curtin University, Bentley, Australia
- Institute of Anesthesiology, University Hospital Zurich, Zurich, Switzerland
| | - Aryeh Shander
- Department of Anesthesiology, Englewood Hospital and Medical Center, TeamHealth Research Institute New Jersey, Englewood, USA
| | - Craig French
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Kevin Murray
- School of Population and Global Health, The University of Western Australia, Perth, Australia
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Miquilino MPV, Cardoso CE, Martins VCBF, Almeida SMSD, Oliveira ACD, Macedo GLD. Packed red blood cell transfusion trigger in the intensive care unit of a university hospital. Rev Bras Ter Intensiva 2020; 32:159-160. [PMID: 32401990 PMCID: PMC7206947 DOI: 10.5935/0103-507x.20200024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 08/05/2019] [Indexed: 01/28/2023] Open
Affiliation(s)
| | | | | | | | | | - Gerson Luiz de Macedo
- Hospital Universitário de Vassouras, Universidade de Vassouras, Vassouras, RJ, Brasil
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Zhang W, Zheng Y, Yu K, Gu J. Liberal Transfusion versus Restrictive Transfusion and Outcomes in Critically Ill Adults: A Meta-Analysis. Transfus Med Hemother 2020; 48:60-68. [PMID: 33708053 DOI: 10.1159/000506751] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 02/24/2020] [Indexed: 01/28/2023] Open
Abstract
Objective We aimed to determine whether the restrictive red-cell transfusion strategy was superior to the liberal one in reducing all-cause mortality in critically ill adults. Methods The MEDLINE, EMBASE, PubMed, Web of Science, and Cochrane Library Central Register of Controlled Trials databases were searched from inception to January 2019 to identify meta-analyses or systematic reviews and published randomized controlled trials which were restrictive versus liberal blood transfusion with mortality as the endpoint in critically ill adults. We used two search routes whereby one search was restricted to systematic reviews, reviews, or meta-analysis, and the other was not restricted. There were no date restrictions, but language was limited to English and the population was restricted to critically ill adults. The data of study methods, participant characteristics, and outcomes were extracted and analyzed independently by 2 reviewers. The main outcome was all-cause mortality. Results Through screening the obtained records, we enrolled 7 randomized clinical trials that included information on restrictive versus liberal red-cell transfusion and mortality of intensive care unit (ICU) patients. Involving a total of 7,363 ICU adult patients, ICU mortality (risk ratio [RR] 0.82, 95% confidence interval [CI] 0.62, 1.08, p = 0.15), 28/30-day mortality (RR 0.98, 95% CI 0.84, 1.13, p = 0.74), 60-day mortality (RR 1.01, 95% CI 0.87, 1.16, p = 0.91), 90-day mortality (RR 1.02, 95% CI 0.92, 1.14, p = 0.69), 120-day mortality (RR 1.29, 95% CI 0.67, 2.47, p = 0.44), and 180-day mortality (RR 0.91, 95% CI 0.75, 1.12, p = 0.38) were not statistically significantly different when the restrictive transfusion strategy was compared with the liberal transfusion strategy. However, we surprisingly discovered that 112 out of 469 (24%) patients who received a unit RBC transfusion when hemoglobin was less than 7 g/dL, and 142 out of 469 (30.3%) who received a unit of RBC transfused with hemoglobin less than 9 g/dL, had died during hospitalization (RR 0.79, 95% CI 0.64, 0.97, p = 0.03). The results showed that the restrictive transfusion strategy could decrease in-hospital mortality compared with the liberal transfusion strategy. It was safe to utilize a restrictive transfusion threshold of less than 7 g/dL in stable critically ill adults. Conclusions In this study, we found that the restrictive red-cell transfusion strategy potentially reduced in-hospital mortality in critically ill adults with anemia compared with the liberal strategy.
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Affiliation(s)
- Wei Zhang
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yan Zheng
- Department of Ultrasound Medicine, Linyi City People's Hospital, Shandong, China
| | - Kun Yu
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Juan Gu
- Department of Clinical Pharmacy, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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Tay J, Allan DS, Chatelain E, Coyle D, Elemary M, Fulford A, Petrcich W, Ramsay T, Walker I, Xenocostas A, Tinmouth A, Fergusson D. Liberal Versus Restrictive Red Blood Cell Transfusion Thresholds in Hematopoietic Cell Transplantation: A Randomized, Open Label, Phase III, Noninferiority Trial. J Clin Oncol 2020; 38:1463-1473. [PMID: 32083994 DOI: 10.1200/jco.19.01836] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
PURPOSE Evidence regarding red blood cell (RBC) transfusion practices and their impact on hematopoietic cell transplantation (HCT) outcomes are poorly understood. PATIENTS AND METHODS We performed a noninferiority randomized controlled trial in four different centers that evaluated patients with hematologic malignancies requiring HCT who were randomly assigned to either a restrictive (hemoglobin [Hb] threshold < 70 g/L) or liberal (Hb threshold < 90 g/L) RBC transfusion strategy between day 0 and day 100. The noninferiority margin corresponds to a 12% absolute difference between groups in Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) score relative to baseline. The primary outcome was health-related quality of life (HRQOL) measured by FACT-BMT score at day 100. Additional end points were collected: HRQOL by FACT-BMT score at baseline and at days 7, 14, 28, 60, and 100; transplantation-related mortality; length of hospital stay; intensive care unit admissions; acute graft-versus-host disease; Bearman toxicity score; sinusoidal obstruction syndrome; serious infections; WHO Bleeding Scale; transfusion requirements; and reactions to therapy. RESULTS A total of 300 patients were randomly assigned to either restrictive-strategy or liberal-strategy treatment groups between 2011 and 2016 at four Canadian adult HCT centers. After HCT, mean pre-transfusion Hb levels were 70.9 g/L in the restrictive-strategy group and 84.6 g/L in the liberal-strategy group (P < .0001). The number of RBC units transfused was lower in the restrictive-strategy group than in the liberal-strategy group (mean, 2.73 units [standard deviation, 4.81 units] v 5.02 units [standard deviation, 6.13 units]; P = .0004). After adjusting for transfusion type and baseline FACT-BMT score, the restrictive-strategy group had a higher FACT-BMT score at day 100 (difference of 1.6 points; 95% CI, -2.5 to 5.6 points), which was noninferior compared with that of the liberal-strategy group. There were no significant differences in clinical outcomes between the transfusion strategies. CONCLUSION In patients undergoing HCT, the use of a restrictive RBC transfusion strategy threshold of 70 g/L was as effective as a threshold of 90 g/L and resulted in similar HRQOL and HCT outcomes with fewer transfusions.
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Affiliation(s)
- Jason Tay
- University of Calgary Tom Baker Cancer Center, Calgary, Alberta, Canada.,Ottawa Hospital Centre for Transfusion Research, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - David S Allan
- Ottawa Hospital Centre for Transfusion Research, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Medicine, Ottawa Hospital, Ottawa, Ontario, Canada
| | - Elizabeth Chatelain
- Ottawa Hospital Centre for Transfusion Research, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Doug Coyle
- School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Mohamed Elemary
- Saskatoon Cancer Center, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Adrienne Fulford
- Department of Medicine, London Health Sciences Centre, London, Ontario, Canada
| | - William Petrcich
- Ottawa Hospital Centre for Transfusion Research, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Timothy Ramsay
- Ottawa Hospital Centre for Transfusion Research, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Irwin Walker
- Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, Ontario, Canada
| | | | - Alan Tinmouth
- Ottawa Hospital Centre for Transfusion Research, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Medicine, Ottawa Hospital, Ottawa, Ontario, Canada
| | - Dean Fergusson
- Ottawa Hospital Centre for Transfusion Research, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
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Yao RQ, Ren C, Zhang ZC, Zhu YB, Xia ZF, Yao YM. Is haemoglobin below 7.0 g/dL an optimal trigger for allogenic red blood cell transfusion in patients admitted to intensive care units? A meta-analysis and systematic review. BMJ Open 2020; 10:e030854. [PMID: 32029484 PMCID: PMC7045194 DOI: 10.1136/bmjopen-2019-030854] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES We employed a comprehensive systematic review and meta-analysis to assess benefits and risks of a threshold of haemoglobin level below 7 g/dL versus liberal transfusion strategy among critically ill patients, and even patients with septic shock. DESIGN Systematic review and meta-analysis. DATA SOURCES We performed systematical searches for relevant randomised controlled trials (RCTs) in the Cochrane Library, EMBASE and PubMed databases up to 1 September 2019. ELIGIBILITY CRITERIA RCTs among adult intensive care unit (ICU) patients comparing 7 g/dL as restrictive strategy with liberal transfusion were incorporated. DATA EXTRACTION AND SYNTHESIS The clinical outcomes, including short-term mortality, length of hospital stay, length of ICU stay, myocardial infarction (MI) and ischaemic events, were screened and analysed after data collection. We applied odds ratios (ORs) to analyse dichotomous outcomes and standardised mean differences (SMDs) to analyse continuous outcomes with fixed or random effects models based on heterogeneity evaluation for each outcome. RESULTS Eight RCTs with 3415 patients were included. Compared with a more liberal threshold, a red blood cell (RBC) transfusion threshold <7 g/dL haemoglobin showed no significant difference in short-term mortality (OR: 0.90, 95% CI: 0.67 to 1.21, p=0.48, I2=53%), length of hospital stay (SMD: -0.11, 95% CI: -0.30 to 0.07, p=0.24, I2=71%), length of ICU stay (SMD: -0.03, 95% CI: -0.14 to 0.08, p=0.54, I2=0%) or ischaemic events (OR: 0.80, 95% CI: 0.43 to 1.48, p=0.48, I2=51%). However, we found that the incidence of MI (OR: 0.54, 95% CI: 0.30 to 0.98, p=0.04, I2=0%) was lower in the group with the threshold <7 g/dL than that with the more liberal threshold. CONCLUSIONS An RBC transfusion threshold <7 g/dL haemoglobin is incapable of decreasing short-term mortality in ICU patients according to currently published evidences, while it might have potential role in reducing MI incidence.
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Affiliation(s)
- Ren-Qi Yao
- Department of Burn Surgery, Changhai Hospital, the Second Military Medical University, Shanghai, China
| | - Chao Ren
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China
| | - Zi-Cheng Zhang
- Department of Orthopedics, Changhai Hospital, the Second Military Medical University, Shanghai, China
| | - Yi-Bing Zhu
- Department of Critical Care Medicine, Beijing Fuxing Hospital, Capital Medical University, Beijing, China
| | - Zhao-Fan Xia
- Department of Burn Surgery, Changhai Hospital, the Second Military Medical University, Shanghai, China
| | - Yong-Ming Yao
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China
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23
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A Retrospective Review of Patients Hospitalized in the Postoperative Intensive Care Unit due to Ectopic Pregnancy Rupture. ANADOLU KLINIĞI TIP BILIMLERI DERGISI 2020. [DOI: 10.21673/anadoluklin.591224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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24
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Trentino KM, Farmer SL, Sanfilippo FM, Leahy MF, Isbister J, Mayberry R, Hofmann A, Murray K. Systematic reviews and meta-analyses comparing mortality in restrictive and liberal haemoglobin thresholds for red cell transfusion: protocol for an overview of systematic reviews. BMJ Open 2019; 9:e029828. [PMID: 31446415 PMCID: PMC6719757 DOI: 10.1136/bmjopen-2019-029828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
INTRODUCTION There has been a significant increase in the number of systematic reviews and meta-analyses of randomised controlled trials investigating thresholds for red blood cell transfusion. To systematically collate, appraise and synthesise the results of these systematic reviews and meta-analyses, we will conduct an overview of systematic reviews. METHODS AND ANALYSIS This is a protocol for an overview of systematic reviews. We will search five databases: MEDLINE, Embase, Web of Science Core Collection, PubMed (for prepublication, in process and non-Medline records) and Google Scholar. We will consider systematic reviews and meta-analyses of randomised controlled trials evaluating the effect of haemoglobin thresholds for red blood cell transfusion on mortality. Two authors will independently screen titles and abstracts retrieved in the literature search and select studies meeting the eligibility criteria for full-text review. We will extract data onto a predefined form designed to summarise the key characteristics of each review. We will assess the methodological quality of included reviews and the quality of evidence in included reviews. ETHICS AND DISSEMINATION Formal ethics approval is not required for this overview as we will only analyse published literature. The findings of this study will be presented at relevant conferences and submitted for peer-review publication. The results are likely to be used by clinicians, policy makers and developers of clinical guidelines and will inform suggestions for future systematic reviews and randomised controlled trials. PROSPERO REGISTRATION NUMBER CRD42019120503.
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Affiliation(s)
- Kevin M Trentino
- School of Population and Global Health, The University of Western Australia, Crawley, Western Australia, Australia
- Data and Digital Innovation, East Metropolitan Health Service, Perth, Western Australia, Australia
| | - Shannon L Farmer
- Medical School and Division of Surgery, The University of Western Australia, Crawley, Western Australia, Australia
- School of Health Sciences and Graduate Studies, Curtin University, Curtin, Western Australia, Australia
| | - Frank M Sanfilippo
- School of Population and Global Health, The University of Western Australia, Crawley, Western Australia, Australia
| | - Michael F Leahy
- Department of Haematology, PathWest Laboratory Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
- School of Medicine and Pharmacology, The University of Western Australia, Crawley, Western Australia, Australia
| | - James Isbister
- Northern Clinical School, Sydney Medical School, St Leonards, New South Wales, Australia
| | - Rhonda Mayberry
- Library and Information Service, South Metropolitan Health Service, Murdoch, Western Australia, Australia
| | - Axel Hofmann
- Medical School and Division of Surgery, The University of Western Australia, Crawley, Western Australia, Australia
- School of Health Sciences and Graduate Studies, Curtin University, Curtin, Western Australia, Australia
- Institute of Anesthesiology, Universitat Zurich, Zurich, Switzerland
| | - Kevin Murray
- School of Population and Global Health, The University of Western Australia, Crawley, Western Australia, Australia
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26
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RBC Exposure in Pediatric Extracorporeal Membrane Oxygenation: Confusion Without Consensus. Pediatr Crit Care Med 2018; 19:787-788. [PMID: 30095719 DOI: 10.1097/pcc.0000000000001623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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