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Mesnard T, Dubosq M, Pruvot L, Azzaoui R, Patterson BO, Sobocinski J. Benefits of Prehabilitation before Complex Aortic Surgery. J Clin Med 2023; 12:jcm12113691. [PMID: 37297886 DOI: 10.3390/jcm12113691] [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: 03/26/2023] [Revised: 05/14/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
The purpose of this narrative review was to detail and discuss the underlying principles and benefits of preoperative interventions addressing risk factors for perioperative adverse events in open aortic surgery (OAS). The term "complex aortic disease" encompasses juxta/pararenal aortic and thoraco-abdominal aneurysms, chronic aortic dissection and occlusive aorto-iliac pathology. Although endovascular surgery has been increasingly favored, OAS remains a durable option, but by necessity involves extensive surgical approaches and aortic cross-clamping and requires a trained multidisciplinary team. The physiological stress of OAS in a fragile and comorbid patient group mandates thoughtful preoperative risk assessment and the implementation of measures dedicated to improving outcomes. Cardiac and pulmonary complications are one of the most frequent adverse events following major OAS and their incidences are correlated to the patient's functional status and previous comorbidities. Prehabilitation should be considered in patients with risk factors for pulmonary complications including advanced age, previous chronic obstructive pulmonary disease, and congestive heart failure with the aid of pulmonary function tests. It should also be combined with other measures to improve postoperative course and be included in the more general concept of enhanced recovery after surgery (ERAS). Although the current level of evidence regarding the effectiveness of ERAS in the setting of OAS remains low, an increasing body of literature has promoted its implementation in other specialties. Consequently, vascular teams should commit to improving the current evidence through studies to make ERAS the standard of care for OAS.
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Affiliation(s)
- Thomas Mesnard
- Service de Chirurgie Vasculaire, Centre de l'Aorte, CHU Lille, 59000 Lille, France
- Univ. Lille, INSERM U1008-Advanced Drug Delivery Systems and Biomaterials, 59000 Lille, France
| | - Maxime Dubosq
- Service de Chirurgie Vasculaire, Centre de l'Aorte, CHU Lille, 59000 Lille, France
| | - Louis Pruvot
- Service de Chirurgie Vasculaire, Centre de l'Aorte, CHU Lille, 59000 Lille, France
| | - Richard Azzaoui
- Service de Chirurgie Vasculaire, Centre de l'Aorte, CHU Lille, 59000 Lille, France
| | - Benjamin O Patterson
- Department of Vascular Surgery, University Hospital Southampton, Southampton SO16 6YD, UK
| | - Jonathan Sobocinski
- Service de Chirurgie Vasculaire, Centre de l'Aorte, CHU Lille, 59000 Lille, France
- Univ. Lille, INSERM U1008-Advanced Drug Delivery Systems and Biomaterials, 59000 Lille, France
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Yeates J, Miles L, Blatchford K, Bailey M, Williams-Spence J, Reid C, Coulson T. AntiPORT: adaptation of a transfusion prediction score to an Australian cardiac surgery population. CRIT CARE RESUSC 2022; 24:360-368. [PMID: 38047003 PMCID: PMC10692639 DOI: 10.51893/2022.4.oa6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Introduction: Risk scoring systems exist to predict perioperative blood transfusion risk in cardiac surgery, but none have been validated in the Australian or New Zealand population. The ACTA-PORT score was developed in the United Kingdom for this purpose. In this study, we validate and recalibrate the ACTA-PORT score in a large national database. Methods: We performed a retrospective validation study using data from the Australian and New Zealand Society of Cardiac and Thoracic Surgeons Database between 1 September 2016 and 31 December 2018. The ACTA-PORT score was calculated using an equivalent of EuroSCORE I. Discrimination and calibration was assessed using area under the receiver operating characteristic (AUROC) curves, Brier scores, and calibration plots. ACTA-PORT was then recalibrated in a development set using logistic regression and the outcome of transfusion to develop new predicted transfusion rates, termed "AntiPORT", using AusSCORE "all procedures" as the regional equivalent of EuroSCORE I. The accuracy of these new predictions was assessed as for ACTA-PORT. Results: 30 388 patients were included in the study at 37 Australian centres. The rate of red blood cell transfusion was 33%. Discrimination of ACTA-PORT was good but calibration was poor, with overprediction of transfusion (AUROC curve, 0.76; 95% CI, 0.75-0.76; Brier score, 0.19). The recalibrated AntiPORT showed significantly improved calibration in both development and validation sets without compromising discrimination (AUROC curve, 0.76; 95% CI, 0.75-0.76; Brier score, 0.18). Conclusions: The AntiPORT is the first red cell transfusion risk scoring system for cardiac surgery patients to be validated using Australian data. It is accurate and simple to calculate. The demonstrated accuracy of AntiPORT may help facilitate benchmarking and future research in patient blood management, as well as providing a useful tool to help clinicians target these resource-saving strategies.
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Affiliation(s)
- James Yeates
- Department of Anaesthesia, St Vincent's Hospital, Sydney, NSW, Australia
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
| | - Lachlan Miles
- Department of Anaesthesia, Austin Health, Melbourne, VIC, Australia
- Department of Critical Care, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Kate Blatchford
- Department of Anaesthesia, St George Hospital, Sydney, NSW, Australia
| | - Michael Bailey
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Jenni Williams-Spence
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Christopher Reid
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
- School of Public Health, Curtin University, Perth, WA, Australia
| | - Tim Coulson
- Department of Critical Care, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, VIC, Australia
- Department of Anaesthesia and Perioperative Medicine, Monash University, Melbourne, VIC, Australia
- Department of Anaesthesia and Perioperative Medicine, Alfred Hospital, Melbourne, VIC, Australia
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Abel GA, Klepin HD, Magnavita ES, Jaung T, Lu W, Shallis RM, Hantel A, Bahl NE, Dellinger-Johnson R, Winer ES, Zeidan AM. Peri-transfusion quality-of-life assessment for patients with myelodysplastic syndromes. Transfusion 2021; 61:2830-2836. [PMID: 34251040 DOI: 10.1111/trf.16584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Many patients with myelodysplastic syndromes (MDS) receive red cell transfusions to relieve symptoms associated with anemia, with transfusions triggered by hemoglobin level. It is not known if patients' quality of life (QOL) improves after transfusion, nor if peri-transfusion QOL assessment (PTQA) can guide future transfusion decisions. STUDY DESIGN AND METHODS We conducted a prospective pilot study of adults with MDS at three centers. Participants, who had to have hemoglobin ≥7.5, completed an MDS-specific measure of QOL (the Quality of Life in Myelodysplasia Scale, [QUALMS]) 1 day before and 7 days after red cell transfusion. A report was sent to each patient and provider before the next transfusion opportunity, indicating whether there were clinically significant changes in QOL. We assessed the proportion of patients experiencing changes in QOL, and with a follow-up questionnaire, whether they perceived their PTQA data were used for future transfusion decisions. RESULTS From 2018 to 2020, 62 patients enrolled (mean age 73 years) and 37 completed both pre- and post-transfusion QOL assessments. Of these, 35% experienced a clinically significant increase in QUALMS score 7 days after transfusion; 46% no change; and 19% a decrease. Among those completing the follow-up questionnaire, 23% reported that PTQA results were discussed by their provider when considering repeat transfusion. CONCLUSIONS These data suggest PTQA is feasible for patients with MDS. Moreover, while helpful for some, for many others, red cell transfusion may not achieve its intended goal of improving QOL. PTQA offers a strategy to inform shared decision-making regarding red cell transfusion.
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Affiliation(s)
- Gregory A Abel
- Division of Population Sciences, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Heidi D Klepin
- Department of Internal Medicine, Section on Hematology and Oncology, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina, USA
| | - Emily S Magnavita
- Division of Population Sciences, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Tim Jaung
- Division of Population Sciences, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Wen Lu
- Division of Transfusion Medicine, Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Rory M Shallis
- Department of Internal Medicine, Section of Hematology, Yale Cancer Center, New Haven, Connecticut, USA
| | - Andrew Hantel
- Division of Population Sciences, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Nupur E Bahl
- Division of Population Sciences, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Rebecca Dellinger-Johnson
- Department of Internal Medicine, Section on Hematology and Oncology, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina, USA
| | - Eric S Winer
- Division of Population Sciences, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Amer M Zeidan
- Department of Internal Medicine, Section of Hematology, Yale Cancer Center, New Haven, Connecticut, USA
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Joseph B, Aziz H, Pandit V, Hays D, Kulvatunyou N, Tang A, Wynne J, Keeffe TO, Green DJ, Friese RS, Gruessner R, Rhee P. Prothrombin Complex Concentrate Use in Coagulopathy of Lethal Brain Injuries Increases Organ Donation. Am Surg 2020. [DOI: 10.1177/000313481408000413] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Coagulopathy is a defined barrier for organ donation in patients with lethal traumatic brain injuries. The purpose of this study was to document our experience with the use of prothrombin complex concentrate (PCC) to facilitate organ donation in patients with lethal traumatic brain injuries. We performed a 4-year retrospective analysis of all patients with devastating gunshot wounds to the brain. The data were analyzed for demographics, change in international normalized ratio (INR), and subsequent organ donation. The primary end point was organ donation. Eighty-eight patients with lethal traumatic brain injury were identified from the trauma registry of whom 13 were coagulopathic at the time of admission (mean INR 2.2 ± 0.8). Of these 13 patients, 10 patients received PCC in an effort to reverse their coagulopathy. Mean INR before PCC administration was 2.01 ± 0.7 and 1.1 ± 0.7 after administration ( P < 0.006). Correction of coagulopathy was attained in 70 per cent (seven of 10) patients. Of these seven patients, consent for donation was obtained in six patients and resulted in 19 solid organs being procured. The cost of PCC per patient was $1022 ± 544. PCC effectively reveres coagulopathy associated with lethal traumatic brain injury and enabled patients to proceed to organ donation. Although various methodologies exist for the treatment of coagulopathy to facilitate organ donation, PCC provides a rapid and cost-effective therapy for reversal of coagulopathy in patients with lethal traumatic brain injuries.
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Affiliation(s)
- Bellal Joseph
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Hassan Aziz
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Viraj Pandit
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Daniel Hays
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Narong Kulvatunyou
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Andrew Tang
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Julie Wynne
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Terence O Keeffe
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Donald J. Green
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Randall S. Friese
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Rainer Gruessner
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
| | - Peter Rhee
- From the Division of Trauma, Burns, Critical Care, and Emergency Surgery, University of Arizona, Tucson, Arizona
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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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McQuilten ZK, Higgins AM, Burns K, Chunilal S, Dunstan T, Haysom HE, Kaplan Z, Rushford K, Saxby K, Tahiri R, Waters N, Wood EM. The cost of blood: a study of the total cost of red blood cell transfusion in patients with β‐thalassemia using time‐driven activity‐based costing. Transfusion 2019; 59:3386-3395. [DOI: 10.1111/trf.15558] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/18/2019] [Accepted: 07/06/2019] [Indexed: 01/18/2023]
Affiliation(s)
- Zoe K. McQuilten
- Transfusion Research Unit, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
- Deparment of Haematology Monash Health Clayton Victoria Australia
| | - Alisa M. Higgins
- Transfusion Research Unit, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
| | - Kelly Burns
- Transfusion Research Unit, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
| | - Sanjeev Chunilal
- Deparment of Haematology Monash Health Clayton Victoria Australia
| | - Terri Dunstan
- Inherited Blood Disorders Clinic Monash Health Clayton Victoria Australia
| | - Helen E. Haysom
- Transfusion Research Unit, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
| | - Zane Kaplan
- Deparment of Haematology Monash Health Clayton Victoria Australia
- Inherited Blood Disorders Clinic Monash Health Clayton Victoria Australia
| | - Kylie Rushford
- Deparment of Haematology Monash Health Clayton Victoria Australia
| | - Karinna Saxby
- Centre for Health Economics Monash University Melbourne Victoria Australia
| | - Renas Tahiri
- Transfusion Research Unit, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
| | - Neil Waters
- Transfusion Research Unit, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
| | - Erica M. Wood
- Transfusion Research Unit, Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
- Deparment of Haematology Monash Health Clayton Victoria Australia
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Should Transfusion Trigger Thresholds Differ for Critical Care Versus Perioperative Patients? A Meta-Analysis of Randomized Trials. Crit Care Med 2019; 46:252-263. [PMID: 29189348 PMCID: PMC5770109 DOI: 10.1097/ccm.0000000000002873] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Supplemental Digital Content is available in the text. Objective: To address the significant uncertainty as to whether transfusion thresholds for critical care versus surgical patients should differ. Design: Meta-analysis of randomized controlled trials. Setting: Medline, EMBASE, and Cochrane Library searches were performed up to 15 June 2016. Patients: Trials had to enroll adult surgical or critically ill patients for inclusion. Interventions: Studies had to compare a liberal versus restrictive threshold for the transfusion of allogeneic packed RBCs. Measurements and Main Results: The primary outcome was 30-day all-cause mortality, sub-grouped by surgical and critical care patients. Secondary outcomes included myocardial infarction, stroke, renal failure, allogeneic blood exposure, and length of stay. Odds ratios and weighted mean differences were calculated using random effects meta-analysis. To assess whether subgroups were significantly different, tests for subgroup interaction were used. Subgroup analysis by trials enrolling critically ill versus surgical patients was performed. Twenty-seven randomized controlled trials (10,797 patients) were included. In critical care patients, restrictive transfusion resulted in significantly reduced 30-day mortality compared with liberal transfusion (odds ratio, 0.82; 95% CI, 0.70–0.97). In surgical patients, a restrictive transfusion strategy led to the opposite direction of effect for mortality (odds ratio, 1.31; 95% CI, 0.94–1.82). The subgroup interaction test was significant (p = 0.04), suggesting that the effect of restrictive transfusion on mortality is statistically different for critical care (decreased risk) versus surgical patients (potentially increased risk or no difference). Regarding secondary outcomes, for critically ill patients, a restrictive strategy resulted in reduced risk of stroke/transient ischemic attack, packed RBC exposure, transfusion reactions, and hospital length of stay. In surgical patients, restrictive transfusion resulted in reduced packed RBC exposure. Conclusions: The safety of restrictive transfusion strategies likely differs for critically ill patients versus perioperative patients. Further trials investigating transfusion strategies in the perioperative setting are necessary.
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Baker L, Park L, Gilbert R, Martel A, Ahn H, Davies A, McIsaac DI, Saidenberg E, Tinmouth A, Fergusson DA, Martel G. Guidelines on the intraoperative transfusion of red blood cells: a protocol for systematic review. BMJ Open 2019; 9:e029684. [PMID: 31213453 PMCID: PMC6586075 DOI: 10.1136/bmjopen-2019-029684] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/22/2019] [Accepted: 05/09/2019] [Indexed: 01/28/2023] Open
Abstract
INTRODUCTION A significant proportion of red blood cell (RBC) transfusions are administered intraoperatively; yet there is limited evidence to guide transfusion decisions in this setting. The objective of this systematic review is to explore the availability, quality and content of clinical practice guidelines (CPGs) reporting on the indication for allogenic RBC transfusion during surgery. METHODS Major electronic databases (MEDLINE, EMBASE and CINAHL), guideline clearinghouses and Google Scholar, will be systematically searched from inception to January 2019 for CPGs pertaining to indications for intraoperative allogenic RBC transfusion. Characteristics of eligible guidelines will be reported in a summary table. The AGREE II instrument will be used to appraise the quality of identified guidelines. Recommendations advising on indications for intraoperative RBC transfusion will be manually extracted and presented to allow for comparison of similarities and/or discrepancies in the literature. ETHICS AND DISSEMINATION The results of this systematic review will be disseminated through relevant conferences and peer-reviewed journals. TRIAL REGISTRATION NUMBER CRD42018111487.
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Affiliation(s)
- Laura Baker
- Department of Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada
- Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
- Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
| | - Lily Park
- Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
| | - Richard Gilbert
- Department of Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada
- Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
| | - Andre Martel
- Department of Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada
- Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
| | - Hilalion Ahn
- Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
| | - Alexandra Davies
- Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
- Learning Services, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Daniel I McIsaac
- Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
- Departments of Anesthesiology and Pain Medicine, University of Ottawa and The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Elianna Saidenberg
- Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
- Division of Hematology, Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Alan Tinmouth
- Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
- Division of Hematology, Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Dean A Fergusson
- Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
| | - Guillaume Martel
- Department of Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada
- Clinical Epidemiology Programme, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada
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9
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Intravenous and Oral Tranexamic Acid Are Equivalent at Reducing Blood Loss in Thoracolumbar Spinal Fusion: A Prospective Randomized Trial. Spine (Phila Pa 1976) 2019; 44:755-761. [PMID: 30540715 DOI: 10.1097/brs.0000000000002954] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A prospective randomized trial of patients enrolled at a university affiliated tertiary medical center between February and December 2017. OBJECTIVE To compare perioperative blood loss in patients undergoing elective posterior thoracolumbar fusion who were treated with intravenous (IV) versus oral (PO) tranexamic acid (TXA). SUMMARY OF BACKGROUND DATA The use of antifibrinolytic agents such as TXA to decrease operative blood loss and allogenic blood transfusions is well documented in the literature. While evidence supports the use of IV and topical formulations of TXA in spine surgery, the use of PO TXA has not been studied. METHODS Eighty-three patients undergoing thoracolumbar fusion were randomized to receive 1.95 g of PO TXA 2 hours preoperatively or 2 g IV TXA (1 g before incision and 1 g before wound closure) intraoperatively. The sample was further stratified into three categories based on number of levels fused (1-2 level fusions, 3-5, and >5). The primary outcome was the reduction of hemoglobin. Secondary outcomes included calculated blood loss, drain output, postoperative transfusion, complications, and length of hospital stay. Equivalence analysis was performed with a two one-sided test (TOST). A P-value of <0.05 suggested equivalence between treatments. RESULTS Fourty three patients received IV TXA and 40 patients received PO TXA. Patient demographic factors were similar between groups except for body mass index (BMI). The mean reduction of hemoglobin was similar between IV and PO groups (3.36 g/dL vs. 3.43 g/dL, respectively; P = 0.01, equivalence). Similarly, the calculated blood loss was equivalent (1235 mL vs. 1312 mL, respectively; P = 0.02, equivalence). Eight patients (19%) in IV TXA group received a transfusion compared with five patients in PO TXA group (13%) (P = 0.44). One patient (2% and 3% in IV and PO, respectively) in each group experienced a deep venous thrombosis/pulmonary embolism (P = 0.96). CONCLUSION Patients treated with IV and PO TXA experienced the same perioperative blood loss after spinal fusions. Given its lower cost, PO TXA represents an excellent alternative to IV TXA in patients undergoing elective posterior thoracolumbar fusion and may improve healthcare cost-efficiency in the studied population. LEVEL OF EVIDENCE 1.
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10
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Ribed-Sánchez B, González-Gaya C, Varea-Díaz S, Corbacho-Fabregat C, Bule-Farto I, Pérez de-Oteyza J. Analysis of economic and social costs of adverse events associated with blood transfusions in Spain. GACETA SANITARIA 2018; 32:269-274. [PMID: 29459107 DOI: 10.1016/j.gaceta.2017.10.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 10/25/2017] [Accepted: 10/31/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To calculate, for the first time, the direct and social costs of transfusion-related adverse events in order to include them in the National Healthcare System's budget, calculation and studies. In Spain more than 1,500 patients yearly are diagnosed with such adverse events. METHOD Blood transfusion-related adverse events recorded yearly in Spanish haemovigilance reports were studied retrospectively (2010-2015). The adverse events were coded according to the classification of Diagnosis-Related Groups. The direct healthcare costs were obtained from public information sources. The productivity loss (social cost) associated with adverse events was calculated using the human capital and hedonic salary methodologies. RESULTS In 2015, 1,588 patients had adverse events that resulted in direct health care costs (4,568,914€) and social costs due to hospitalization (200,724€). Three adverse reactions resulted in patient death (at a social cost of 1,364,805€). In total, the cost of blood transfusion-related adverse events was 6,134,443€ in Spain. For the period 2010-2015: the trends show a reduction in the total amount of transfusions (2 vs. 1.91M€; -4.4%). The number of adverse events increased (822 vs. 1,588; +93%), as well as their related direct healthcare cost (3.22 vs. 4.57M€; +42%) and the social cost of hospitalization (110 vs 200M€; +83%). Mortality costs decreased (2.65 vs. 1.36M€; -48%). DISCUSSION This is the first time that the costs of post-transfusion adverse events have been calculated in Spain. These new figures and trends should be taken into consideration in any cost-effectiveness study or trial of new surgical techniques or sanitary policies that influence blood transfusion activities.
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Affiliation(s)
- Borja Ribed-Sánchez
- Department of Manufacturing Engineering, ETSII-Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain; Department of Corporate Resources, HM Hospitales, Madrid, Spain.
| | - Cristina González-Gaya
- Department of Manufacturing Engineering, ETSII-Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | | | | | | | - Jaime Pérez de-Oteyza
- Department of Hematology, HM Hospitales, Madrid, Spain; School of Medicine, CEU San Pablo University, Alcorcón, Madrid, Spain
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Risk Factors Associated with Perioperative Myocardial Infarction in Major Open Vascular Surgery. Ann Vasc Surg 2017; 47:24-30. [PMID: 28893702 DOI: 10.1016/j.avsg.2017.08.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/08/2017] [Accepted: 08/21/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND Among patients undergoing noncardiac surgery, major vascular surgery is associated with a high risk of perioperative myocardial infarction (MI). Currently, there are no perioperative MI risk calculators accounting for intraoperative and postoperative risk factors in vascular surgery patients. We aimed to investigate specific risk factors for perioperative MI after major open vascular surgery to determine which patients are at highest risk of MI and the association of perioperative MI with perioperative transfusion. METHODS This statewide, retrospective cohort study analyzed risk factors for perioperative MI in major open vascular surgery between July 2012 and December 2015 using the Michigan Surgical Quality Collaborative, a multicenter quality collaborative. Patients were identified using current procedure terminology codes including open abdominal aortic aneurysm repairs (oAAA), aortobifemoral bypasses (AFB), and lower extremity bypasses (LEB). Rates of myocardial infarction were described for each procedure. A priori, preoperative, intraoperative, and postoperative variables were evaluated using univariate and multivariable statistics after adjusting for intraoperative factors including anesthesia type, intraoperative blood loss, intraoperative transfusion, and intraoperative vasopressor medications. RESULTS A total of 3,689 patients underwent major open vascular surgery, including 375 oAAA, 392 AFB, and 2,922 LEB procedures. The overall incidence of MI was 2.4%, varying from 1.8% for aortobifemoral bypass, 2.4% for lower extremity bypass, and 3.7% for open abdominal aortic aneurysm repair. Although preoperative risk factors for myocardial infarction included age, American Society of Anesthesiologists score, diabetes, coronary artery disease, congestive heart failure, use of beta blocker, lower preoperative hematocrit, and surgical priority (urgent/emergent cases), after adjusting for intraoperative risk factors, all preoperative risk factors were not significant with the exception of surgical priority. After adjusting for intraoperative factors, only surgical priority (odds ratio [OR] = 1.70, 95% confidence interval [CI] [1.01-2.85], P < 0.001) and postoperative transfusion (OR = 2.65, 95% CI [1.59-4.44], P < 0.001) was associated with myocardial infarction, and higher nadir hematocrit was inversely associated with myocardial infarction (OR = 0.89, 95% CI [0.85-0.94], P < 0.001). CONCLUSIONS Among vascular surgery patients undergoing major open vascular surgery, surgical priority was the only preoperative risk factors independently associated with MI, and only postoperative variables such as nadir hematocrit and postoperative transfusion were associated with MI. This suggests minimizing intraoperative blood loss and prioritizing early intraoperative transfusion may be the potential targets for process improvement.
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Hemauer S, Kingeter AJ, Han X, Shotwell MS, Pandharipande PP, Weavind LM. Daily Lowest Hemoglobin and Risk of Organ Dysfunctions in Critically Ill Patients. Crit Care Med 2017; 45:e479-e484. [PMID: 28252537 PMCID: PMC5398896 DOI: 10.1097/ccm.0000000000002288] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES To determine the association between hemoglobin levels and the daily risk of individual organ dysfunctions in critically ill patients. DESIGN Post hoc analysis of prospectively collected data. SETTING Vanderbilt University Medical Center and Saint Thomas Hospital Medical and Surgical ICUs. PATIENTS Medical and surgical ICU patients admitted with respiratory failure or shock. INTERVENTIONS Baseline demographic data, and detailed in-ICU and hospital data, including daily lowest hemoglobin, were collected up to hospital day 30. We assessed patients daily for brain dysfunction (delirium, using Confusion Assessment Method for ICU), for renal and respiratory dysfunction (using the ordinal renal and respiratory Sequential Organ Failure Assessment score), and for ICU mortality. Associations between the lowest hemoglobin on a given day and organ dysfunctions the following day were assessed using multivariable regressions, adjusting for age, Acute Physiology and Chronic Health Evaluation II score, Charlson comorbidity index, Framingham Stroke Risk Profile, ICU day, ICU type, sepsis, and current organ dysfunction status. A sensitivity analysis further adjusted for daily transfusions and fluid balance in a subset of our patients. MEASUREMENTS AND MAIN RESULTS We enrolled 821 patients with a median (interquartile range) age of 61 (51-71) years, Acute Physiology and Chronic Health Evaluation II score of 25 (19-31), and hemoglobin level of 10.0 (9.0-11.1) g/dL. There was no evidence of an association between lowest daily hemoglobin and brain dysfunction (p = 0.69 for delirium), renal dysfunction (p = 0.30), or ICU mortality (p = 0.95). The lowest hemoglobin on a given day was significantly associated with the respiratory Sequential Organ Failure Assessment score the following day; for each increasing hemoglobin unit, the odds of worsened respiratory Sequential Organ Failure Assessment score the following day were decreased by 36% (OR, 0.64; 95% CI, 0.53-0.77; p < 0.001). The sensitivity analysis including daily transfusions and fluid balance (in a subset of 518 patients) did not qualitatively change any of these associations. CONCLUSIONS In this study in ICU patients, lower hemoglobin was associated with a higher probability of worsening respiratory dysfunction scores the following day. There was no evidence of association between hemoglobin and brain or renal dysfunction, or ICU mortality. The possible differential effects of anemia on organ dysfunctions seen in this hypothesis-generating study will have to be studied in a larger prospective study before any alterations to present restrictive transfusion guidelines can be recommended.
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Affiliation(s)
- Sarah Hemauer
- Department of Anesthesiology/Division of Anesthesiology Critical Care Medicine, Nashville, TN
| | - Adam J Kingeter
- Department of Anesthesiology/Division of Anesthesiology Critical Care Medicine, Nashville, TN
| | - Xue Han
- Department of Biostatistics at the Vanderbilt University School of Medicine, Nashville, TN
| | - Matthew S Shotwell
- Department of Biostatistics at the Vanderbilt University School of Medicine, Nashville, TN
| | - Pratik P Pandharipande
- Department of Anesthesiology/Division of Anesthesiology Critical Care Medicine, Nashville, TN
| | - Liza M Weavind
- Department of Anesthesiology/Division of Anesthesiology Critical Care Medicine, Nashville, TN
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Henke PK, Park YJ, Hans S, Bove P, Cuff R, Kazmers A, Schreiber T, Gurm HS, Grossman PM. The Association of Peri-Procedural Blood Transfusion with Morbidity and Mortality in Patients Undergoing Percutaneous Lower Extremity Vascular Interventions: Insights from BMC2 VIC. PLoS One 2016; 11:e0165796. [PMID: 27835656 PMCID: PMC5106007 DOI: 10.1371/journal.pone.0165796] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 10/18/2016] [Indexed: 01/28/2023] Open
Abstract
Objective To determine the predictors of periprocedural blood transfusion and the association of transfusion on outcomes in high risk patients undergoing endoluminal percutaneous vascular interventions (PVI) for peripheral arterial disease. Methods/Results Between 2010–2014 at 47 hospitals participating in a statewide quality registry, 4.2% (n = 985) of 23,273 patients received a periprocedural blood transfusion. Transfusion rates varied from 0 to 15% amongst the hospitals in the registry. Using multiple logistic regression, factors associated with increased transfusion included female gender (OR = 1.9; 95% CI: 1.6–2.1), low creatinine clearance (1.3; 1.1–1.6), pre-procedural anemia (4.7; 3.9–5.7), family history of CAD (1.2; 1.1–1.5), CHF (1.4; 1.2–1.6), COPD (1.2; 1.1–1.4), CVD or TIA (1.2; 1.1–1.4), renal failure CRD (1.5; 1.2–1.9), pre-procedural heparin use (1.8; 1.4–2.3), warfarin use (1.2; 1.0–1.5), critical limb ischemia (1.7; 1.5–2.1), aorta-iliac procedure (1.9; 1.5–2.5), below knee procedure (1.3; 1.1–1.5), urgent procedure (1.7; 1.3–2.2), and emergent procedure (8.3; 5.6–12.4). Using inverse weighted propensity matching to adjust for confounders, transfusion was a significant risk factor for death (15.4; 7.5–31), MI (67; 29–150), TIA/stroke (24; 8–73) and ARF (19; 6.2–57). A focused QI program was associated with a 28% decrease in administration of blood transfusion (p = 0.001) over 4 years. Conclusion In a large statewide PVI registry, post procedure transfusion was highly correlated with a specific set of clinical risk factors, and with in-hospital major morbidity and mortality. However, using a focused QI program, a significant reduction in transfusion is possible.
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Affiliation(s)
- Peter K. Henke
- Department of Surgery, University of Michigan, Ann Arbor, MI, United States of America
- * E-mail:
| | - Yeo Jung Park
- Department of Medicine, University of Michigan, Ann Arbor, MI, United States of America
| | - Sachinder Hans
- Henry Ford Malcomb Hospital, Wyndott, MI, United States of America
| | - Paul Bove
- Beaumont Health System, Royal Oak, MI, United States of America
| | - Robert Cuff
- Spectrum Health System, Grand Rapids, MI, United States of America
| | - Andris Kazmers
- McLaren Northern Michigan Health System, Traverse City, MI, United States of America
| | | | - Hitinder S. Gurm
- Department of Medicine, University of Michigan, Ann Arbor, MI, United States of America
| | - P. Michael Grossman
- Department of Medicine, University of Michigan, Ann Arbor, MI, United States of America
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Effect of Antifibrinolytic Therapy on Complications, Thromboembolic Events, Blood Product Utilization, and Fusion in Adult Spinal Deformity Surgery. Spine (Phila Pa 1976) 2016; 41:E879-E886. [PMID: 27398796 DOI: 10.1097/brs.0000000000001454] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A multicenter, prospective, consecutive database of surgical patients with adult spinal deformity (ASD). OBJECTIVE This study investigated the use of antifibrinolytic (AF) therapy in ASD surgery. SUMMARY OF BACKGROUND DATA AF therapy has been shown to be effective in preventing blood loss in some settings. Its effect on major and minor perioperative complications, blood product utilization, vascular events, and postoperative fusion in patients undergoing ASD surgery remains unclear. METHODS All patients with data on AF use were included. Parameters of blood utilization included transfusion rates and units of packed red blood cells and fresh frozen plasma transfused. Thromboembolic events included stroke, deep vein thrombosis, and pulmonary embolus. Multivariate regression was used, accounting for confounders. RESULTS Four hundred three patients were included. One hundred thirty-seven patients received aminocaproic acid (EACA), 81 received tranexamic acid (TXA), and 185 received no AFs. The use of AF was associated with a decrease in transfusion (EACA: odds ratio [OR] = 0.38, P = 0.043; TXA: OR = 0.31, P = 0.047), a decrease in the number of units of packed red blood cells transfused (EACA: incidence risk ratio [IRR] = 0.45, P = 0.0005; TXA: IRR = 0.7, P = 0.0005), and a decrease in the number of fresh frozen plasma transfused (EACA: IRR = 0.65, P = 0.003; TXA: IRR = 0.67, P = 0.006). AF use was associated with an increase in minor intraoperative complications (EACA: IRR = 2.15, P = 0.008; TXA: IRR = 2.12, P = 0.011). TXA use (but not EACA) was associated with a decrease in the incidence of major perioperative complications compared with no AF (IRR = 0.37, P = 0.019). There was no difference in the incidence of thromboembolic events. CONCLUSION TXA or EACA use was associated with increased minor intraoperative complications. TXA was associated with decreased major perioperative complications. AF was associated with decreased utilization of blood products without an increased rate of thromboembolic events. Given the nature of this study, transfusion threshold was not standardized. Future studies with rigid criteria for transfusion should be prospectively performed to better evaluate the impact of AF during ASD surgery. LEVEL OF EVIDENCE 3.
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15
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Postoperative Autologous Reinfusion in Total Knee Replacement. JOURNAL OF BLOOD TRANSFUSION 2015; 2015:826790. [PMID: 26442168 PMCID: PMC4579317 DOI: 10.1155/2015/826790] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/10/2015] [Accepted: 08/24/2015] [Indexed: 12/03/2022]
Abstract
Surgeries for total knee replacement (TKR) are increasing and in this context there is a need to develop new protocols for management and use of blood transfusion therapy. Autologous blood reduces the need for allogeneic blood transfusion and the aim of the present study was to verify the safety and the clinical efficacy. An observational retrospective study has been conducted on 124 patients, undergoing cemented total knee prosthesis replacement. Observed population was stratified into two groups: the first group received reinfusion of autologous blood collected in the postoperative surgery and the second group did not receive autologous blood reinfusion. Analysis of data shows that patients undergoing autologous blood reinfusion received less homologous blood bags (10.6% versus 30%; p = 0.08) and reduced days of hospitalization (7.88 ± 0.7 days versus 8.96 ± 2.47 days for the control group; p = 0.03). Microbiological tests were negative in all postoperatively salvaged and reinfused units. Our results emphasize the effectiveness of this procedure and have the characteristics of simplicity, low cost (€97.53 versus €103.79; p < 0.01), and easy reproducibility. Use of autologous drainage system postoperatively is a procedure that allows reducing transfusion of homologous blood bags in patients undergoing TKR.
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16
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The association of perioperative transfusion with 30-day morbidity and mortality in patients undergoing major vascular surgery. J Vasc Surg 2015; 61:1000-9.e1. [DOI: 10.1016/j.jvs.2014.10.106] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 10/30/2014] [Indexed: 01/28/2023]
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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: study protocol for systematic review and meta-analysis. Syst Rev 2015; 4:29. [PMID: 25874460 PMCID: PMC4369835 DOI: 10.1186/s13643-015-0016-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 02/24/2015] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Preoperative anemia is a common and potentially serious hematological problem in elective surgery and increases the risk for perioperative red blood cell (RBC) transfusion. Transfusion is associated with postoperative morbidity and mortality. Preoperative intravenous (IV) iron therapy has been proposed as an intervention to reduce perioperative transfusion; however, studies are generally small, limited, and inconclusive. METHODS/DESIGN We propose performing a systematic review and meta-analysis. We will search MEDLINE, EMBASE, EBM Reviews, Cochrane-controlled trial registry, Scopus, registries of health technology assessment and clinical trials, Web of Science, ProQuest Dissertations and Theses, and conference proceedings in transfusion, hematology, and surgery. We will contact our study drug manufacturer for unpublished trials. Titles and abstracts will be identified and assessed by two reviewers for potential relevance. Eligible studies are: randomized or quasi-randomized clinical trials comparing preoperative administration of IV iron with placebo or standard of care to reduce perioperative blood transfusion in anemic patients undergoing major surgery. Screening, data extraction, and quality appraisal will be conducted independently by two authors. Data will be presented in evidence tables and in meta-analytic forest plots. Primary efficacy outcomes are change in hemoglobin concentration and proportion of patients requiring RBC transfusion. Secondary outcomes include number of units of blood or blood products transfused perioperatively, transfusion-related acute lung injury, neurologic complications, adverse events, postoperative infections, cardiopulmonary complications, intensive care unit (ICU) admission/readmission, length of hospital stay, acute kidney injury, and mortality. Dichotomous outcomes will be reported as pooled relative risks and 95% confidence intervals. Continuous outcomes will be reported using calculated weighted mean differences. Meta-regression will be performed to evaluate the impact of potential confounding variables on study effect estimates. DISCUSSION Reducing unnecessary RBC transfusions in perioperative medicine is a clinical priority. This involves the identification of patients at risk of receiving transfusions along with blood conservation strategies. Of potential pharmacological blood conservation strategies, IV iron is a compelling intervention to treat preoperative anemia; however, existing data are uncertain. We propose performing a systematic review and meta-analysis evaluating the efficacy and safety of IV iron administration to anemic patients undergoing major surgery to reduce transfusion and perioperative morbidity and mortality. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42015016771.
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Affiliation(s)
- Abdelsalam M Elhenawy
- School of Public Health, University of Alberta, 4075 RTF, 8308 114 Street, Edmonton, Alberta, T6G 2E1, Canada.
| | - Steven R Meyer
- Division of Cardiac Surgery, Department of Cardiac Surgery, Faculty of Medicine and Dentistry, University of Alberta, 8440-112 Street, Edmonton, Alberta, T6G 2B7, Canada.
| | - Sean M Bagshaw
- Division of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, 2-124 Clinical Sciences Building 8440-112 Street, Edmonton, Alberta, T6G 2B7, Canada.
| | - Roderick G MacArthur
- Division of Cardiac Surgery, Department of Cardiac Surgery, Faculty of Medicine and Dentistry, University of Alberta, 8440-112 Street, Edmonton, Alberta, T6G 2B7, Canada.
| | - Linda J Carroll
- School of Public Health, University of Alberta, 4075 RTF, 8308 114 Street, Edmonton, Alberta, T6G 2E1, Canada.
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Reducing unnecessary preoperative blood orders and costs by implementing an updated institution-specific maximum surgical blood order schedule and a remote electronic blood release system. Anesthesiology 2014; 121:501-9. [PMID: 24932853 DOI: 10.1097/aln.0000000000000338] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Using blood utilization data acquired from the anesthesia information management system, an updated institution-specific maximum surgical blood order schedule was introduced. The authors evaluated whether the maximum surgical blood order schedule, along with a remote electronic blood release system, reduced unnecessary preoperative blood orders and costs. METHODS At a large academic medical center, data for preoperative blood orders were analyzed for 63,916 surgical patients over a 34-month period. The new maximum surgical blood order schedule and the electronic blood release system (Hemosafe; Haemonetics Corp., Braintree, MA) were introduced mid-way through this time period. The authors assessed whether these interventions led to reductions in unnecessary preoperative orders and associated costs. RESULTS Among patients having surgical procedures deemed not to require a type and screen or crossmatch (n = 33,216), the percent of procedures with preoperative blood orders decreased by 38% (from 40.4% [7,167 of 17,740 patients] to 25.0% [3,869 of 15,476 patients], P < 0.001). Among all hospitalized inpatients, the crossmatch-to-transfusion ratio decreased by 27% (from 2.11 to 1.54; P < 0.001) over the same time period. The proportion of patients who required emergency release uncrossmatched blood increased from 2.2 to 3.1 per 1,000 patients (P = 0.03); however, most of these patients were having emergency surgery. Based on the realized reductions in blood orders, annual costs were reduced by $137,223 ($6.08 per patient) for surgical patients, and by $298,966 ($6.20/patient) for all hospitalized patients. CONCLUSION Implementing institution-specific, updated maximum surgical blood order schedule-directed preoperative blood ordering guidelines along with an electronic blood release system results in a substantial reduction in unnecessary orders and costs, with a clinically insignificant increase in requirement for emergency release blood transfusions.
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Patel V, Lin FJ, Ojo O, Rao S, Yu S, Zhan L, Touchette DR. Cost-utility analysis of genotype-guided antiplatelet therapy in patients with moderate-to-high risk acute coronary syndrome and planned percutaneous coronary intervention. Pharm Pract (Granada) 2014; 12:438. [PMID: 25243032 PMCID: PMC4161409 DOI: 10.4321/s1886-36552014000300007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 08/15/2014] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Prasugrel is recommended over clopidogrel in poor/intermediate CYP2C19 metabolizers with acute coronary syndrome (ACS) and planned percutaneous coronary intervention (PCI), reducing the risk of ischemic events. CYP2C19 genetic testing can guide antiplatelet therapy in ACS patients. OBJECTIVE The purpose of this study was to evaluate the cost-utility of genotype-guided treatment, compared with prasugrel or generic clopidogrel treatment without genotyping, from the US healthcare provider's perspective. METHODS A decision model was developed to project lifetime economic and humanistic burden associated with clinical outcomes (myocardial infarction [MI], stroke and major bleeding) for the three strategies in patients with ACS. Probabilities, costs and age-adjusted quality of life were identified through systematic literature review. Incremental cost-utility ratios (ICURs) were calculated for the treatment strategies, with quality-adjusted life years (QALYs) as the primary effectiveness outcome. Relative risk of developing myocardial infarction and stroke between patients with and without variant CYP2C19 when receiving clopidogrel were estimated to be 1.34 and 3.66, respectively. One-way and probabilistic sensitivity analyses were performed. RESULTS Clopidogrel cost USD19,147 and provided 10.03 QALYs versus prasugrel (USD21,425, 10.04 QALYs) and genotype-guided therapy (USD19,231, 10.05 QALYs). The ICUR of genotype-guided therapy compared with clopidogrel was USD4,200. Genotype-guided therapy provided more QALYs at lower costs compared with prasugrel. Results were sensitive to the cost of clopidogrel and relative risk of myocardial infarction and stroke between CYP2C19 variant vs. non-variant. Net monetary benefit curves showed that genotype-guided therapy had at least 70% likelihood of being the most cost-effective alternative at a willingness-to-pay of USD100,000/QALY. In comparison with clopidogrel, prasugrel therapy was more cost-effective with <21% certainty at willingness-to-pay of >USD170,000/QALY. CONCLUSIONS Our modeling analyses suggest that genotype-guided therapy is a cost-effective strategy in patients with acute coronary syndrome undergoing planned percutaneous coronary intervention.
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Affiliation(s)
- Vardhaman Patel
- Department of Pharmacy Systems, Outcomes and Policy, University of Illinois at Chicago . Chicago, IL, ( United States )
| | - Fang-Ju Lin
- Pharmerit North America LLC, Bethesda, MD ( United States )
| | - Olaitan Ojo
- Pharmacoeconomic Center, Department of Defense. Fort Sam Houston, TX ( United States )
| | - Sapna Rao
- Department of Epidemiology, University of North Carolina , Chapel Hill, NC ( United States )
| | - Shengsheng Yu
- Global Health Outcomes, Merck Sharp & Dohme Corp. Whitehouse Station, NJ ( United States )
| | - Lin Zhan
- Eisai Inc. Woodcliff Lake, NJ ( United States )
| | - Daniel R Touchette
- Departments of Pharmacy Practice and Pharmacy Systems, Outcomes and Policy, University of Illinois at Chicago . Chicago, IL ( United States ).
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Affiliation(s)
- M. H. Ariff
- National Heart Institute (IJN); Kuala Lumpur Malaysia
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22
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Fernández AM, Cronin J, Greenberg RS, Heitmiller ES. Pediatric preoperative blood ordering: when is a type and screen or crossmatch really needed? Paediatr Anaesth 2014; 24:146-50. [PMID: 23957750 DOI: 10.1111/pan.12250] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/19/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Unnecessary testing for and ordering of blood products adds to overall healthcare costs. OBJECTIVES Determine intraoperative red blood cell (RBC) product utilization for pediatric procedures and costs associated with perioperative testing and ordering. METHODS A retrospective chart review captured perioperative blood testing and intraoperative transfusion data for patients <19 years of age who underwent noncardiac surgery over a 13-month period at one tertiary care hospital. The main outcome measure was cost associated with testing for blood products in patients undergoing procedures that had a zero rate of transfusion. RESULTS The intraoperative transfusion rate for 8620 noncardiac pediatric procedures was 2.78%. Of 8380 nontransfused patients, 707 (8.4%) had type and screen, and of those, 420 (5%) were crossmatched for RBC products in preparation for surgery. The 10 surgical procedures that had the highest perioperative blood testing but no instances of transfusion were as follows: colostomy or ileostomy takedown, spinal cord untethering, tunneled catheter placement, laparoscopic Nissen fundoplication, elbow reduction and fixation, lumbar puncture, suboccipital craniectomy, hip arthrogram, percutaneous intravascular central line, and tonsillectomy and adenoidectomy. Procedures with low transfusion probability and high crossmatch testing were ventriculoperitoneal shunt revision and growing rod distraction. For all nontransfused patients, the cost of obtaining type and screen was $31,815, and the cost for crossmatch was $25,200. CONCLUSION Patients may undergo preoperative type and screen or crossmatch for procedures rarely associated with transfusion. Historic transfusion probability may be used to predict need for transfusion for specific surgical procedures and reduce unnecessary perioperative testing and associated costs.
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Affiliation(s)
- Allison M Fernández
- Division of Pediatric Anesthesia, Department of Anesthesia and Critical Care, Johns Hopkins University, Baltimore, MD, USA
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Samnaliev M, Tran CM, Sloan SR, Gasior I, Lightdale JR, Brustowicz RM. Economic evaluation of cell salvage in pediatric surgery. Paediatr Anaesth 2013; 23:1027-34. [PMID: 23952976 DOI: 10.1111/pan.12233] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/27/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Red blood cells are a scarce resource with demand outstripping supply. Use of intraoperative red cell salvage (CS) - the process of collecting shed blood during surgery and reinfusing it to patients - is often used as an effective blood conservation strategy. However, little is known about the economic impact of CS during pediatric surgery. METHODS A decision tree model was used to estimate the transfusion-related costs per patient (2010 USD) from a healthcare system perspective of four transfusion strategies among children undergoing elective orthopedic or cardiac surgery: (i) CS followed by allogeneic transfusion, (ii) CS followed by autologous transfusion, (iii) allogeneic transfusion alone, and (iv) autologous transfusion alone. RESULTS Cell salvage and allogeneic transfusion was the least expensive strategy (USD 883.3) followed by CS and autologous blood transfusion (USD 1,269.7), allogeneic transfusion alone (USD 1,443.0), and autologous transfusion alone (USD 1,824.7). Savings associated with CS use persisted in separate analyses of orthopedic and cardiac surgery, as well as in one-way and probabilistic sensitivity analyses. CONCLUSIONS Use of CS, particularly along with allogeneic blood transfusion, appears cost-saving and cost-effective in pediatric surgery.
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Affiliation(s)
- Mihail Samnaliev
- Clinical Research Center, Boston Children's Hospital, Boston, MA, USA
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Varnado CL, Mollan TL, Birukou I, Smith BJ, Henderson DP, Olson JS. Development of recombinant hemoglobin-based oxygen carriers. Antioxid Redox Signal 2013; 18:2314-28. [PMID: 23025383 PMCID: PMC3638513 DOI: 10.1089/ars.2012.4917] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 09/23/2012] [Accepted: 10/01/2012] [Indexed: 12/27/2022]
Abstract
SIGNIFICANCE The worldwide blood shortage has generated a significant demand for alternatives to whole blood and packed red blood cells for use in transfusion therapy. One such alternative involves the use of acellular recombinant hemoglobin (Hb) as an oxygen carrier. RECENT ADVANCES Large amounts of recombinant human Hb can be expressed and purified from transgenic Escherichia coli. The physiological suitability of this material can be enhanced using protein-engineering strategies to address specific efficacy and toxicity issues. Mutagenesis of Hb can (i) adjust dioxygen affinity over a 100-fold range, (ii) reduce nitric oxide (NO) scavenging over 30-fold without compromising dioxygen binding, (iii) slow the rate of autooxidation, (iv) slow the rate of hemin loss, (v) impede subunit dissociation, and (vi) diminish irreversible subunit denaturation. Recombinant Hb production is potentially unlimited and readily subjected to current good manufacturing practices, but may be restricted by cost. Acellular Hb-based O(2) carriers have superior shelf-life compared to red blood cells, are universally compatible, and provide an alternative for patients for whom no other alternative blood products are available or acceptable. CRITICAL ISSUES Remaining objectives include increasing Hb stability, mitigating iron-catalyzed and iron-centered oxidative reactivity, lowering the rate of hemin loss, and lowering the costs of expression and purification. Although many mutations and chemical modifications have been proposed to address these issues, the precise ensemble of mutations has not yet been identified. FUTURE DIRECTIONS Future studies are aimed at selecting various combinations of mutations that can reduce NO scavenging, autooxidation, oxidative degradation, and denaturation without compromising O(2) delivery, and then investigating their suitability and safety in vivo.
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Affiliation(s)
| | - Todd L. Mollan
- Center for Biologics Evaluation and Research, Division of Hematology, United States Food and Drug Administration, Bethesda, Maryland
| | - Ivan Birukou
- Department of Biochemistry, Duke University, Durham, North Carolina
| | - Bryan J.Z. Smith
- Department of Biology, The University of Texas of the Permian Basin, Odessa, Texas
| | - Douglas P. Henderson
- Department of Biology, The University of Texas of the Permian Basin, Odessa, Texas
| | - John S. Olson
- Department of Biochemistry & Cell Biology, Rice University, Houston, Texas
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Kacker S, Frick KD, Tobian AAR. The costs of transfusion: economic evaluations in transfusion medicine, Part 1. Transfusion 2013; 53:1383-5. [PMID: 23560675 DOI: 10.1111/trf.12188] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 02/20/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Seema Kacker
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Lelubre C, Vincent JL. Red blood cell transfusion in the critically ill patient. Ann Intensive Care 2011; 1:43. [PMID: 21970512 PMCID: PMC3207872 DOI: 10.1186/2110-5820-1-43] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 10/04/2011] [Indexed: 12/31/2022] Open
Abstract
Red blood cell (RBC) transfusion is a common intervention in intensive care unit (ICU) patients. Anemia is frequent in this population and is associated with poor outcomes, especially in patients with ischemic heart disease. Although blood transfusions are generally given to improve tissue oxygenation, they do not systematically increase oxygen consumption and effects on oxygen delivery are not always very impressive. Blood transfusion may be lifesaving in some circumstances, but many studies have reported increased morbidity and mortality in transfused patients. This review focuses on some important aspects of RBC transfusion in the ICU, including physiologic considerations, a brief description of serious infectious and noninfectious hazards of transfusion, and the effects of RBC storage lesions. Emphasis is placed on the importance of personalizing blood transfusion according to physiological endpoints rather than arbitrary thresholds.
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Affiliation(s)
- Christophe Lelubre
- Department of Intensive Care, Erasme Hospital, Université libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium.
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Frytak JR, Henk HJ, De Castro CM, Halpern R, Nelson M. Estimation of economic costs associated with transfusion dependence in adults with MDS. Curr Med Res Opin 2009; 25:1941-51. [PMID: 19552620 DOI: 10.1185/03007990903076699] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To examine the economic burden of myelodysplastic syndromes (MDS) and the incremental cost of transfusion dependence. RESEARCH DESIGN AND METHODS Adults with evidence of MDS were identified between 05/01/2000 and 09/30/2003 from a longitudinal, retrospective claims database for a large, geographically diverse US health plan and their medical histories were followed for at least 6 months. Patients were classified as transfusion-dependent (MDS-TD) or transfusion-independent (MDS-TI). MAIN OUTCOME MEASURES Variables were categorized as demographic, health status, utilization, or cost. Utilization (inpatient hospitalizations, outpatient facility visits, emergency department visits, and physician office visits) is reported as the mean and median numbers of each specified encounter per subject. Costs were measured as the sum of patient and plan liability. All variables were analyzed descriptively, and appropriate statistical tests were used to compare the MDS-TD and MDS-TI cohorts. Pharmacy, medical, and total health care costs, adjusted for demographics and comorbidity, were estimated using gamma regression with a log link. RESULTS The MDS-TI cohort consisted of 2864 patients, and the MDS-TD cohort comprised 336 patients. Mean age for the entire study sample was 70.2 years. The MDS-TI cohort tended to receive most of its medical care at physicians' offices, whereas the MDS-TD cohort received nearly as much medical care at outpatient facilities (e.g., infusion clinics, hospital outpatient clinics) as it did in physicians' offices. The MDS-TD cohort had significantly higher mean annual costs: pharmacy, $4457 vs. $2926; medical, $50,663 vs. $17,469; total, $51,066 vs. $19,811 (p < 0.001 for all comparisons). Thus, transfusion dependence was associated with an incremental cost of $31,255 per patient per year. Some limitations inherent to using claims data and diagnosis codes for research apply to this study. CONCLUSIONS This study demonstrated that an important consequence of transfusion dependence for MDS patients was markedly greater use of, and consequently higher costs associated with, inpatient and outpatient services. Continued research and efforts to develop biologic and pharmaceutical therapies may help more patients achieve transfusion independence, thereby reducing the financial burden of MDS.
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Bursi F, Barbieri A, Politi L, Di Girolamo A, Malagoli A, Grimaldi T, Rumolo A, Busani S, Girardis M, Jaffe A, Modena M. Perioperative Red Blood Cell Transfusion and Outcome in Stable Patients after Elective Major Vascular Surgery. Eur J Vasc Endovasc Surg 2009; 37:311-8. [DOI: 10.1016/j.ejvs.2008.12.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Accepted: 12/03/2008] [Indexed: 10/21/2022]
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Cost-Effectiveness Analysis: What It Really Means for Transfusion Medicine Decision Making. Transfus Med Rev 2009; 23:1-12. [DOI: 10.1016/j.tmrv.2008.09.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cirugía sin sangre en las prótesis totales de rodilla. Rev Esp Cir Ortop Traumatol (Engl Ed) 2008. [DOI: 10.1016/s1888-4415(08)75588-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Moreno Zurriarían E, Echenique Elizondo M, Emparanza Knorr J, Usabiaga Zarranz J. Bloodless surgery total kree arthroplasty. Rev Esp Cir Ortop Traumatol (Engl Ed) 2008. [DOI: 10.1016/s1988-8856(08)70124-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Snyder-Ramos SA, Mhnle P, Weng YS, Bttiger BW, Kulier A, Levin J, Mangano DT. The ongoing variability in blood transfusion practices in cardiac surgery. Transfusion 2008; 48:1284-99. [DOI: 10.1111/j.1537-2995.2008.01666.x] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Murray PE, Garcia-Godoy F, Hargreaves KM. Regenerative endodontics: a review of current status and a call for action. J Endod 2007; 33:377-90. [PMID: 17368324 DOI: 10.1016/j.joen.2006.09.013] [Citation(s) in RCA: 495] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2006] [Revised: 09/10/2006] [Accepted: 09/18/2006] [Indexed: 12/16/2022]
Abstract
Millions of teeth are saved each year by root canal therapy. Although current treatment modalities offer high levels of success for many conditions, an ideal form of therapy might consist of regenerative approaches in which diseased or necrotic pulp tissues are removed and replaced with healthy pulp tissue to revitalize teeth. Researchers are working toward this objective. Regenerative endodontics is the creation and delivery of tissues to replace diseased, missing, and traumatized pulp. This review provides an overview of regenerative endodontics and its goals, and describes possible techniques that will allow regenerative endodontics to become a reality. These potential approaches include root-canal revascularization, postnatal (adult) stem cell therapy, pulp implant, scaffold implant, three-dimensional cell printing, injectable scaffolds, and gene therapy. These regenerative endodontic techniques will possibly involve some combination of disinfection or debridement of infected root canal systems with apical enlargement to permit revascularization and use of adult stem cells, scaffolds, and growth factors. Although the challenges of introducing endodontic tissue engineering therapies are substantial, the potential benefits to patients and the profession are equally ground breaking. Patient demand is staggering both in scope and cost, because tissue engineering therapy offers the possibility of restoring natural function instead of surgical placement of an artificial prosthesis. By providing an overview of the methodological issues required to develop potential regenerative endodontic therapies, we hope to present a call for action to develop these therapies for clinical use.
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Affiliation(s)
- Peter E Murray
- Department of Endodontics, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA.
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Abstract
Coagulation is a finely tuned sequence of reactions beginning with the interaction between tissue factor (TF) and its substrate, factor VII (FVII), and resulting in the formation of a fibrin clot localized to the site of vascular endothelial disruption. While important for fibrin clot formation, thrombin also plays a role in stabilizing the clot against premature fibrinolysis by activating thrombin activatable fibrinolysis inhibitor (TAFI) and factor XIII (FXIII), the terminal enzyme in the coagulation cascade. Despite use of antifibrinolytic agents in various types of surgery to inhibit clot lysis. thereby limiting blood loss and patient exposure to allogeneic blood products, numerous patients still require transfusions for nonsurgical bleeding. This article describes new concepts of localized hemostasis, a potential role for clot stabilization, and inhibition of fibrinolysis for control of bleeding.
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Affiliation(s)
- Lisa Payne Rojkjaer
- Clinical Development, Novartis Pharmaceuticals, One Health Plaza, East Hanover, NJ 07936-1080, USA.
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Muñoz M, Kühlmorgen B, Ariza D, Haro E, Marroquí A, Ramirez G. Which patients are more likely to benefit from postoperative shed blood salvage after unilateral total knee replacement? An analysis of 581 consecutive procedures. Vox Sang 2007; 92:136-41. [PMID: 17298576 DOI: 10.1111/j.1423-0410.2006.00868.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Requirements for allogeneic blood transfusion (ABT) after total knee replacement (TKR) are still high (30-50%), and salvage of unwashed filtered postoperative shed blood (USB) may represent an alternative to ABT. We evaluated that patients are more likely to benefit of USB reinfusion after TKR. PATIENTS AND METHODS Data from 581 consecutive primary TKR, managed with (reinfusion group, n = 382) or without (control group, n= 199) reinfusion of USB, were retrospectively reviewed. RESULTS Patients from reinfusion group received 119 +/- 88 ml of red blood cells from USB, without clinically relevant incidents, and showed a lower ABT rate (30.6% vs. 8.4%, for control and reinfusion groups, respectively; P = 0.001) (transfusion trigger, haemoglobin [Hb] < 9 g/dl). Differences in ABT rate between groups were significant for all preoperative Hb levels, except for Hb < or = 12 g/dl. A lower transfusion threshold (Hb < 8 g/dl) might have further decreased ABT rate (14.6% vs. 5.2%, respectively; P < 0.001), with differences being significant for preoperative Hb between 12 and 15 g/dl. There were no differences with respect to postoperative infection rate, but patients from reinfusion group had a shorter length of hospital stay (11 +/- 4 vs. 13 +/- 4 days, respectively; P= 0.001). CONCLUSIONS Return of USB after TKR seems to reduce the need for ABT, especially in patients with preoperative Hb between 12 and 15 g/dl. There is little benefit of USB reinfusion for patients with preoperative Hb > 15 g/dl, whereas patients with preoperative Hb < 12 g/dl would probably benefit from the combination of USB with some other blood-saving method.
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Affiliation(s)
- M Muñoz
- GIEMSA, School of Medicine, University of Málaga, Campus de Teatinos s/n, 19071 Málaga, Spain.
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Silver M, Corwin MJ, Bazan A, Gettinger A, Enny C, Corwin HL. Efficacy of recombinant human erythropoietin in critically ill patients admitted to a long-term acute care facility: a randomized, double-blind, placebo-controlled trial. Crit Care Med 2006; 34:2310-6. [PMID: 16878035 DOI: 10.1097/01.ccm.0000233873.17954.42] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
CONTEXT Anemia is common in the critically ill and results in a large number of red blood cell transfusions. Recent data have shown that red blood cell transfusions in critically ill patients can be decreased with recombinant human erythropoietin (rHuEPO) therapy during their intensive care unit stay. OBJECTIVE To assess the efficacy of rHuEPO therapy in decreasing the occurrence of red blood cell transfusions in patients admitted to a long-term acute care facility (LTAC). DESIGN A prospective, randomized, double-blind, placebo-controlled, multiple-center trial. SETTING Two long-term acute care facilities. PATIENTS A total of 86 patients who met eligibility criteria were enrolled in the study with 42 randomized to rHuEPO and 44 to placebo. INTERVENTIONS Study drug (rHuEPO 40,000 units) or a placebo was administered by subcutaneous injection before day 7 of long-term acute care facility admission and continued weekly for up to 12 doses. MAIN OUTCOME MEASURES The primary efficacy end point was cumulative red blood cell units transfused. Secondary efficacy end points were the percent of patients receiving any red blood cell transfusion; the percent of patients alive and transfusion independent; cumulative mortality; and change in hematologic variables from baseline. Logistic regression was used to adjust the odds ratio for red blood cell transfusion. All end points were assessed at both study day 42 and study day 84. RESULTS The baseline hemoglobin level was higher in the rHuEPO group (9.9 +/- 1.15 g/dL vs. 9.3 +/- 1.41 g/dL, p = .02) as was the pretransfusion hemoglobin level (8.0 +/- 0.5 g/dL vs. 7.5 +/- 0.8 g/dL, p = .04). At day 84, patients receiving rHuEPO received fewer red blood cell transfusions (median units per patient 0 vs. 2, p = .05), and the ratio of red blood cell transfusion rates per day alive was 0.61 with 95% confidence interval of 0.2, 1.01, indicating a 39% relative reduction in transfusion burden for the rHuEPO group compared with placebo. There was also a trend at day 84 toward a reduction in the total units of red blood cells transfused in the rHuEPO group (113 units of placebo vs. 73 units of rHuEPO). Patients receiving rHuEPO were also less likely to be transfused (64% placebo vs. 41% rHuEPO, p = .05; adjusted odds ratio 0.47, 95% confidence interval 0.19, 1.16). Most of the transfusion benefit of rHuEPO occurred by study day 42. Increase in hemoglobin from baseline to final was greater in the rHuEPO group (1.0 +/- 2 g/dL vs. 0.4 +/- 1.7 g/dL, p < .001). Mortality rate (19% rHuEPO, 29.5% placebo, p = .17; relative risk, 0.55, 95% confidence interval 0.21-1.43) and serious adverse clinical events (38 % rHuEPO, 32% placebo, p = .65) were not significantly different between the two groups. CONCLUSIONS In patients admitted to a long-term acute care facility, administration of weekly rHuEPO results in a significant reduction in exposure to allogeneic red blood cell transfusion during the initial 42 days of rHuEPO therapy, with little additional benefit achieved with therapy to 84 days. Despite receiving fewer red blood cell transfusions, patients treated with rHuEPO achieve a higher hemoglobin level.
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Alghamdi AA, Davis A, Brister S, Corey P, Logan A. Development and validation of Transfusion Risk Understanding Scoring Tool (TRUST) to stratify cardiac surgery patients according to their blood transfusion needs. Transfusion 2006; 46:1120-9. [PMID: 16836558 DOI: 10.1111/j.1537-2995.2006.00860.x] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Allogeneic blood transfusion is associated with transfusion reactions, infection transmission, and postoperative morbidity and mortality. The objective of this study was to develop and validate an accurate and simple clinical index to stratify cardiac surgery patients according to their blood transfusion needs. METHODS AND RESULTS Data on consecutive adult patients who underwent cardiac surgery at Toronto General Hospital (n = 11,113) and Sunnybrook and Women's College Health Sciences Center (n = 5316) between May 1999 and June 2004 were collected for the development, validation, and external validation of the index. Primary outcome was the exposure to blood transfusion in the operative and first postoperative days. Multivariable logistic regression modeling techniques were used to determine the relationship between each independent variable and the exposure to allogeneic blood transfusion. Score assignment for each predictor variable was based on its regression coefficient. The predicted probabilities at each total score were compared to the observed proportions of patients exposed to blood transfusion. The clinical tool consists of eight preoperative variables: preoperative hemoglobin, weight, female sex, age, nonelective procedure, preoperative creatinine, previous cardiac surgical procedure, and nonisolated procedure. CONCLUSIONS Based on the standards of measurement in clinical research, a valid clinical tool was developed for predicting the need for blood transfusion in patients undergoing cardiac surgery. The clinical tool was internally and externally validated, and the results suggest that it should perform well at other institutions.
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Affiliation(s)
- Abdullah A Alghamdi
- Department of Surgery, Division of Cardiac Surgery, University of Toronto, Toronto, Ontario, Canada.
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Zacharopoulos A, Apostolopoulos A, Kyriakidis A. The effectiveness of reinfusion after total knee replacement. A prospective randomised controlled study. INTERNATIONAL ORTHOPAEDICS 2006; 31:303-8. [PMID: 16810542 PMCID: PMC2267590 DOI: 10.1007/s00264-006-0173-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2006] [Revised: 04/19/2006] [Accepted: 05/10/2006] [Indexed: 11/29/2022]
Abstract
The purpose of our study was to determine the effectiveness of a postoperative autologous blood reinfusion system as an alternative to homologous, banked blood transfusions in total knee arthroplasty. We carried out a prospective randomised controlled study on 60 patients having unilateral total knee replacements. In all these patients, the same surgical team applied the same surgical technique, and all patients followed the same rehabilitation program. In 30 of these patients (group A), a reinfusion system of unwashed salvaged blood was applied, and they were supplemented postoperatively with banked blood transfusions when required. A control group of 30 patients (group B), in whom standard suction drains were used, received one unit of homologous banked blood transfusion intraoperatively and additional blood transfusions postoperatively when required. The administration of banked blood transfusion was determined by the haemoglobin value (<9 mg/dl) and/or clinical signs (blood pressure, pulse, etc.). The values of haemoglobin, haematocrit and platelets were recorded preoperatively and the first, fifth and 15th postoperative days, respectively. Five patients of group A required nine units of homologous blood (0.3 units/patient) postoperatively. Ten patients of group B required an additional 15 banked blood units postoperatively (in total 45 banked blood units for group B; 1.5 units/patient). In the study group, the total homologous blood requirements were reduced by 80%, while the postoperative blood requirements were reduced by 50%. There was no significant difference in the postoperative haematocrit and haemoglobin values between the two groups. The cost of the blood management in the study group was reduced by 36%. The use of an autologous blood reinfusion system reduces highly effectively the demands of homologous banked blood transfusion in total knee arthroplasty.
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Affiliation(s)
- A. Zacharopoulos
- Orthopaedic Department, General Hospital of Amfissa, Oikismos Drosochoriou, 33100 Amfissa, Greece
| | - A. Apostolopoulos
- Orthopaedic Department, General Hospital of Amfissa, Oikismos Drosochoriou, 33100 Amfissa, Greece
| | - A. Kyriakidis
- Orthopaedic Department, General Hospital of Amfissa, Oikismos Drosochoriou, 33100 Amfissa, Greece
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Alghamdi AA, Albanna MJ, Guru V, Brister SJ. Does the Use of Erythropoietin Reduce the Risk of Exposure to Allogeneic Blood Transfusion in Cardiac Surgery? A Systematic Review and Meta-Analysis. J Card Surg 2006; 21:320-6. [PMID: 16684074 DOI: 10.1111/j.1540-8191.2006.00241.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND The use of blood conservation techniques is important in cardiac surgery as postoperative bleeding is common and allogeneic blood transfusion carries the risk of transfusion reactions and infection transmission. Erythropoietin with and without preoperative autologous blood donation is one of the modalities to avoid allogeneic blood transfusion. The objective of this review was to assess the effectiveness of erythropoietin in reducing the risk of exposure to allogeneic blood transfusion during or after cardiac surgery. METHODS A meta-analysis of 11 identified randomized controlled trials, reporting comparisons between erythropoietin and control, was undertaken. The primary outcome was the number of patients exposed to allogeneic blood transfusion during or after cardiac surgery. RESULTS Eleven studies, involving 708 patients, met the inclusion criteria for this review. In total, 471 patients were given erythropoietin, and 237 patients formed the control group. The administration of erythropoietin with and without preoperative autologous blood transfusion prior to cardiac surgery is associated with a significant risk reduction: RR = 0.28 (95% CI 0.18-0.44, P < 0.001) and RR = 0.53 (95% CI 0.32-0.88, P < 0.01), respectively. CONCLUSION The administration of erythropoietin before cardiac surgery is associated with a significant reduction in the risk of exposure to allogeneic blood transfusion. Further studies are warranted to define the patients' subgroups that may benefit the most from EPO administration.
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Affiliation(s)
- Abdullah A Alghamdi
- Division of Cardiac Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
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40
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Abstract
Anemia is the most common cytopenia associated with myelodysplastic syndromes (MDS). Current management relies on frequent red blood cell (RBC) transfusions and erythroid growth factors to alleviate symptoms. However, the dependence of patients with MDS on repeated RBC transfusions often results in significant clinical and economic consequences, poorer outcomes, and diminished health-related quality of life. In addition, the intensity and duration of RBC transfusion dependence can influence responses to treatment after disease progression. Erythropoietic growth factors may alleviate the need for RBC transfusions in some patients with MDS, although only a minority of patients experience responses. Emerging treatment strategies to reduce or eliminate the need for RBC transfusions in patients with MDS include immunomodulating drugs, immunosuppressive therapy, and differentiating agents. The immunomodulating drug lenalidomide in patients who have MDS with 5q deletion is unique among emerging approaches, in that cytogenetic remitting activity and durable erythroid responses have been achieved. Newer treatments have the potential to improve the care of patients with MDS by alleviating the clinical, economic, and quality-of-life consequences of long-term RBC transfusion dependence.
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Affiliation(s)
- Lodovico Balducci
- Department of Interdisciplinary Oncology, Geriatric Section, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida 33612-9497, USA.
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Aiyagari V, Menendez JA, Diringer MN. Treatment of severe coagulopathy after gunshot injury to the head using recombinant activated factor VII. J Crit Care 2005; 20:176-9. [PMID: 16139160 DOI: 10.1016/j.jcrc.2005.02.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2004] [Revised: 12/04/2004] [Accepted: 02/01/2005] [Indexed: 11/27/2022]
Abstract
PURPOSE Patients with severe penetrating head injury often have a coagulopathy that is difficult to correct. In this report, we describe 3 such patients who were treated with activated factor VII (FVIIa) to stop ongoing hemorrhage that was refractory to conventional treatment. SUBJECTS AND METHODS We treated 3 patients with severe head injury secondary to gunshot wounds to the head. All 3 patients had ongoing bleeding secondary to a severe consumptive coagulopathy that was refractory to treatment with fresh frozen plasma, platelets, and cryoprecipitate. Recombinant FVIIa was then administered to achieve hemostasis. RESULTS Administration of FVIIa (90-120 microg/kg) was successful in rapidly achieving hemostasis and correcting abnormal laboratory parameters indicative of coagulopathy in all patients. Although all 3 patients died, control of bleeding made organ donation possible in 2 patients. CONCLUSION In patients with a severe head injury and coagulopathy, use of FVIIa may help in correction of coagulopathy and decrease transfusion requirements. In patients where ongoing bleeding precludes the declaration of brain death, the use of this agent might help in achieving hemodynamic stability and preserve the possibility of organ donation. The ethical implications of using FVIIa in this situation are discussed.
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Affiliation(s)
- Venkatesh Aiyagari
- Department of Neurology and Rehabilitation, University of Illinois, Chicago, 60612, USA.
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Fernandes da Cunha DH, Nunes Dos Santos AM, Kopelman BI, Areco KN, Guinsburg R, de Araújo Peres C, Chiba AK, Kuwano ST, Terzian CCN, Bordin JO. Transfusions of CPDA-1 red blood cells stored for up to 28 days decrease donor exposures in very low-birth-weight premature infants. Transfus Med 2005; 15:467-73. [PMID: 16359417 DOI: 10.1111/j.1365-3148.2005.00624.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The goal of this research was to study the safety and the efficacy of transfusing citrate-phosphate-adenine anticoagulant-preservative (CPDA-1) RBC stored for up to 28 days to reduce donor exposures in premature infants. A prospective randomized two-group study was conducted with very low-birth-weight premature infants that received at least one RBC transfusion during hospital stay. Neonates randomly assigned to Group 1 (26 infants) were transfused with CPDA-1 RBC stored for up to 28 days; those assigned to Group 2 (26 infants) received CPDA-1 RBC stored for up to 3 days. Demographic and transfusion-related data were collected. Neonates from both groups showed similar demographics and clinical characteristics. The number of transfusions per infant transfused was 4.4 +/- 4.0 in Group 1 and 4.2 +/- 3.1 in Group 2, and the number of donors per infant transfused was 1.5 +/- 0.8 (Group 1) and 4.3 +/- 3.4 (Group 2), P < 0.001. RBC transfusions containing 29.7 +/- 18.3 mmol L(-1) of potassium (RBC stored for up to 28 days) did not cause clinical or biochemical changes and reduced donor exposures by 70.2%, compared to transfusions containing 19.8 +/- 12.3 mmol L(-1) of potassium (RBC stored for up to 3 days), P < 0.001. In conclusion, RBC stored for up to 28 days safely reduced donor exposures in premature infants.
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Affiliation(s)
- D H Fernandes da Cunha
- Division of Neonatal Medicine, Department of Pediatrics, Hematology and Transfusion Medicine Service, Department of Biostatistics, Federal University of São Paulo, São Paulo, Brazil
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Dillon MF, Collins D, Rice J, Murphy PG, Nicholson P, Mac Elwaine J. Preoperative characteristics identify patients with hip fractures at risk of transfusion. Clin Orthop Relat Res 2005; 439:201-6. [PMID: 16205160 DOI: 10.1097/01.blo.0000173253.59827.7b] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Routine cross-matching places substantial demands on limited blood resources. The primary objective of this study was to identify patients with hip fractures at risk of transfusion, which may allow implementation of a more selective cross-matching policy. We also sought to determine the hemoglobin level that triggered a transfusion, the rate of urgent (intraoperative) transfusions, and these patients' characteristics. We reviewed 124 consecutive patients admitted with hip fractures. Patients' clinical and radiologic details, transfusion rates, timing of transfusion, and preoperative and postoperative hemoglobin were reviewed. Older age, low admission hemoglobin, and peritrochanteric fractures were identified as risk factors for transfusion. Eighty-six percent of patients who received transfusions had two or more risk factors, compared with 48% of the total population. The mean hemoglobin that triggered a transfusion was 7.8 g/dL. Although 30% (37/124) of patients received transfusions, only 5% (six of 124) received transfusions intraoperatively, and the majority of these patients (five of six) had at least two risk factors of transfusion. Routine cross-matching for patients with hip fractures requiring surgery can safely be converted to cross-matching on demand in all but high-risk patients. Restrictive cross-matching policies would improve costs in healthcare delivery and prevent unnecessary use of blood resources.
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Affiliation(s)
- Mary F Dillon
- Department of Trauma and Reconstructive Orthopaedics, Adelaide and Meath Hospital and Trinity College Dublin, Dublin, Ireland
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Glenngård AH, Persson U, Söderman C. Costs associated with blood transfusions in Sweden - the societal cost of autologous, allogeneic and perioperative RBC transfusion. Transfus Med 2005; 15:295-306. [PMID: 16101807 DOI: 10.1111/j.0958-7578.2005.00591.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Anaemia is characterised by an insufficient number of red blood cells (RBCs) and might occur for different reasons, e.g. surgical procedures are often with associated blood loss. Patients who suffer from anaemia have the option of treatment with blood transfusion or medical treatment. In this study, the societal cost, for the case of Sweden, of RBC transfusion using three different techniques, i.e. allogeneic, autologous and intraoperative transfusion, was estimated. The analysis was based on information from interviews with hospital staff at large Swedish hospitals and from published data. The average cost for a 2 units transfusion was found to be Swedish kronor (SEK) 6330 (702 Euro) for filtered allogeneic RBCs and SEK 5394 (598 Euro) for autologous RBCs for surgery patients. Transfusion reactions accounted for almost 35 per cent of the costs of allogeneic RBC transfusions. The administration cost was found to be much higher for autologous transfusions compared with allogeneic transfusions. The cost of intraoperative erythrocyte salvage was calculated to be SEK 2567 (285 Euro) per transfusion (>4 units).
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Affiliation(s)
- A H Glenngård
- The Swedish Institute for Health Economics (IHE), Lund, Sweden.
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Muñoz M, Ariza D, Garcerán MJ, Gómez A, Campos A. Benefits of postoperative shed blood reinfusion in patients undergoing unilateral total knee replacement. Arch Orthop Trauma Surg 2005; 125:385-9. [PMID: 15821894 DOI: 10.1007/s00402-005-0817-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2004] [Indexed: 02/09/2023]
Abstract
INTRODUCTION In patients undergoing total knee replacement (TKR), most of the measured blood loss occurs during the postoperative period, and 30-50% of these patients receive allogeneic blood transfusion (ABT). For this reason, the salvage and return of unwashed filtered shed blood (USB) from postoperative drainage may represent an alternative to ABT in these patients. We have, therefore, evaluated the clinical utility of USB return in TKR patients, with a special focus on patients with mild anaemia. MATERIALS AND METHODS Data from 200 TKR patients (group 2) receiving USB within the first 6 postoperative hours (ConstaVac CBC II, Sryker) were prospectively collected. A retrospective series of 100 TRK patients served as the control group (group 1). RESULTS USB return was possible in 162 patients who received a mean of 0.98+/-0.4 U/pte, without any clinically relevant incident. Return of USB decreased both the percentage of patients with ABT (48% vs 11%, for groups 1 and 2, respectively; p < 0.01) and the ABT units/patient index (1.31+/-1.27 vs 0.29+/-0.87 units/patient, respectively; p < 0.01). A transfusion protocol was not established, but there was no difference between groups with respect to either perioperative Hb levels or overall transfusion index, indicating that the transfusion criteria were uniform. However, for the subgroups of patients who needed ABT, the preoperative Hb level was 1 g/dL lower in those receiving USB (13.4+/-1.4 vs 12.4+/-1.2 g/dL; p < 0.05). There was no difference in the postoperative complication rate, and patients in group 2 recovered the ability to walk 1 day earlier, and their hospital stay was 3 days shorter than in group 1 (p < 0.01). CONCLUSIONS Return of USB after TKR seems to shorten the hospital stay and effectively reduce postoperative requirements for ABT, especially in patients with preoperative Hb > or = 13 g/dL. For patients with preoperative Hb < 13 g/dL, although the return of USB also decreased the requirements for ABT, a further reduction will probably be obtained with the addition of another blood-saving method.
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Affiliation(s)
- Manuel Muñoz
- GIEMSA, School of Medicine, University of Málaga, Campus de Teatinos, s/n, 29071, Málaga, Spain.
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Amin M, Fergusson D, Wilson K, Tinmouth A, Aziz A, Coyle D, Hébert P. The societal unit cost of allogenic red blood cells and red blood cell transfusion in Canada. Transfusion 2004; 44:1479-86. [PMID: 15383022 DOI: 10.1111/j.1537-2995.2004.04065.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND There is a dearth of information about the cost of allogenic red blood cells (RBCs) and RBC transfusion in Canada in the aftermath of the Canadian blood system reorganization and the introduction of various safety measures. The unit cost of allogenic RBCs and RBC transfusion in Canada in 1994 was estimated at 152.17 US dollars. The objective of this study was to determine the unit cost of allogenic RBC transfusion in Canada from a societal perspective. STUDY DESIGN AND METHODS A cost-structure analysis using the cost information from 2001 through 2002 was used. Costs of blood collection, production, distribution, delivery (hospital transfusion service processing and patient administration), transfusion reaction management, and opportunity cost of donor's time were included in the analysis. Canadian Blood Services and Héma-Québec supplied the data for collection, production, and distribution stages. Delivery and transfusion reaction costs were collected from eight hospitals across six Canadian provinces. In-patient costs were assessed for the intensive care unit, emergency, general medicine ward, and operating room. RESULTS The aggregate mean societal unit cost of RBCs transfused on an inpatient basis in 2002 was 264.81 US dollars (95% confidence interval [CI], 256.29 dollars-275.65 dollars). The mean cost of blood collection, production, and distribution was 202.74 US dollars (95% CI, 199.63 dollars-204.31 dollars), the mean opportunity cost of donor time was 18.21 US dollars (95% CI, 17.11 dollars-21.63 dollars), the mean cost of hospital transfusion service processing was 16.65 US dollars (95% CI, 13.50 dollars-19.79 dollars), of RBC transfusion was 26.92 US dollars (95% CI, 25.33 dollars-28.52 dollars), and of transfusion reaction management was 0.29 US dollars(95% CI, 0.22 dollars-0.36 dollars). There were substantial variations in hospital transfusion service processing and RBC transfusion costs across hospitals. CONCLUSION The societal unit cost of RBC transfusion has doubled since 1994 to 1995. Further increases in unit costs would be expected as additional safety measures are introduced. This will have important financial implications for treating patient populations that require a high level of RBC transfusions.
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Affiliation(s)
- Mo Amin
- Centre for Transfusion Research, University of Ottawa, Ottawa, Canada.
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