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Lloyd TD, Geneen LJ, Bernhardt K, McClune W, Fernquest SJ, Brown T, Dorée C, Brunskill SJ, Murphy MF, Palmer AJ. Cell salvage for minimising perioperative allogeneic blood transfusion in adults undergoing elective surgery. Cochrane Database Syst Rev 2023; 9:CD001888. [PMID: 37681564 PMCID: PMC10486190 DOI: 10.1002/14651858.cd001888.pub5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
BACKGROUND Concerns regarding the safety and availability of transfused donor blood have prompted research into a range of techniques to minimise allogeneic transfusion requirements. Cell salvage (CS) describes the recovery of blood from the surgical field, either during or after surgery, for reinfusion back to the patient. OBJECTIVES To examine the effectiveness of CS in minimising perioperative allogeneic red blood cell transfusion and on other clinical outcomes in adults undergoing elective or non-urgent surgery. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, three other databases and two clinical trials registers for randomised controlled trials (RCTs) and systematic reviews from 2009 (date of previous search) to 19 January 2023, without restrictions on language or publication status. SELECTION CRITERIA We included RCTs assessing the use of CS compared to no CS in adults (participants aged 18 or over, or using the study's definition of adult) undergoing elective (non-urgent) surgery only. DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by Cochrane. MAIN RESULTS We included 106 RCTs, incorporating data from 14,528 participants, reported in studies conducted in 24 countries. Results were published between 1978 and 2021. We analysed all data according to a single comparison: CS versus no CS. We separated analyses by type of surgery. The certainty of the evidence varied from very low certainty to high certainty. Reasons for downgrading the certainty included imprecision (small sample sizes below the optimal information size required to detect a difference, and wide confidence intervals), inconsistency (high statistical heterogeneity), and risk of bias (high risk from domains including sequence generation, blinding, and baseline imbalances). Aggregate analysis (all surgeries combined: primary outcome only) Very low-certainty evidence means we are uncertain if there is a reduction in the risk of allogeneic transfusion with CS (risk ratio (RR) 0.65, 95% confidence interval (CI) 0.59 to 0.72; 82 RCTs, 12,520 participants). Cancer: 2 RCTs (79 participants) Very low-certainty evidence means we are uncertain whether there is a difference for mortality, blood loss, infection, or deep vein thrombosis (DVT). There were no analysable data reported for the remaining outcomes. Cardiovascular (vascular): 6 RCTs (384 participants) Very low- to low-certainty evidence means we are uncertain whether there is a difference for most outcomes. No data were reported for major adverse cardiovascular events (MACE). Cardiovascular (no bypass): 6 RCTs (372 participants) Moderate-certainty evidence suggests there is probably a reduction in risk of allogeneic transfusion with CS (RR 0.82, 95% CI 0.69 to 0.97; 3 RCTs, 169 participants). Very low- to low-certainty evidence means we are uncertain whether there is a difference for volume transfused, blood loss, mortality, re-operation for bleeding, infection, wound complication, myocardial infarction (MI), stroke, and hospital length of stay (LOS). There were no analysable data reported for thrombosis, DVT, pulmonary embolism (PE), and MACE. Cardiovascular (with bypass): 29 RCTs (2936 participants) Low-certainty evidence suggests there may be a reduction in the risk of allogeneic transfusion with CS, and suggests there may be no difference in risk of infection and hospital LOS. Very low- to moderate-certainty evidence means we are uncertain whether there is a reduction in volume transfused because of CS, or if there is any difference for mortality, blood loss, re-operation for bleeding, wound complication, thrombosis, DVT, PE, MACE, and MI, and probably no difference in risk of stroke. Obstetrics: 1 RCT (1356 participants) High-certainty evidence shows there is no difference between groups for mean volume of allogeneic blood transfused (mean difference (MD) -0.02 units, 95% CI -0.08 to 0.04; 1 RCT, 1349 participants). Low-certainty evidence suggests there may be no difference for risk of allogeneic transfusion. There were no analysable data reported for the remaining outcomes. Orthopaedic (hip only): 17 RCTs (2055 participants) Very low-certainty evidence means we are uncertain if CS reduces the risk of allogeneic transfusion, and the volume transfused, or if there is any difference between groups for mortality, blood loss, re-operation for bleeding, infection, wound complication, prosthetic joint infection (PJI), thrombosis, DVT, PE, stroke, and hospital LOS. There were no analysable data reported for MACE and MI. Orthopaedic (knee only): 26 RCTs (2568 participants) Very low- to low-certainty evidence means we are uncertain if CS reduces the risk of allogeneic transfusion, and the volume transfused, and whether there is a difference for blood loss, re-operation for bleeding, infection, wound complication, PJI, DVT, PE, MI, MACE, stroke, and hospital LOS. There were no analysable data reported for mortality and thrombosis. Orthopaedic (spine only): 6 RCTs (404 participants) Moderate-certainty evidence suggests there is probably a reduction in the need for allogeneic transfusion with CS (RR 0.44, 95% CI 0.31 to 0.63; 3 RCTs, 194 participants). Very low- to moderate-certainty evidence suggests there may be no difference for volume transfused, blood loss, infection, wound complication, and PE. There were no analysable data reported for mortality, re-operation for bleeding, PJI, thrombosis, DVT, MACE, MI, stroke, and hospital LOS. Orthopaedic (mixed): 14 RCTs (4374 participants) Very low- to low-certainty evidence means we are uncertain if there is a reduction in the need for allogeneic transfusion with CS, or if there is any difference between groups for volume transfused, mortality, blood loss, infection, wound complication, PJI, thrombosis, DVT, MI, and hospital LOS. There were no analysable data reported for re-operation for bleeding, MACE, and stroke. AUTHORS' CONCLUSIONS In some types of elective surgery, cell salvage may reduce the need for and volume of allogeneic transfusion, alongside evidence of no difference in adverse events, when compared to no cell salvage. Further research is required to establish why other surgeries show no benefit from CS, through further analysis of the current evidence. More large RCTs in under-reported specialities are needed to expand the evidence base for exploring the impact of CS.
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Affiliation(s)
- Thomas D Lloyd
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Louise J Geneen
- Systematic Review Initiative, NHS Blood and Transplant, Oxford, UK
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, UK
| | | | | | - Scott J Fernquest
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Tamara Brown
- School of Health, Leeds Beckett University, Leeds, UK
| | - Carolyn Dorée
- Systematic Review Initiative, NHS Blood and Transplant, Oxford, UK
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, UK
| | - Susan J Brunskill
- Systematic Review Initiative, NHS Blood and Transplant, Oxford, UK
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, UK
| | - Michael F Murphy
- NHS Blood and Transplant, Oxford University Hospitals NHS Foundation Trust and University of Oxford, Oxford, UK
- Blood and Transplant Research Unit in Data Driven Transfusion, NIHR, Oxford, UK
| | - Antony Jr Palmer
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
- Blood and Transplant Research Unit in Data Driven Transfusion, NIHR, Oxford, UK
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Warren JA, McLaughlin JP, Molloy RM, Higuera CA, Schaffer JL, Piuzzi NS. Blood Management in Total Knee Arthroplasty: A Nationwide Analysis from 2011 to 2018. J Knee Surg 2022; 35:997-1003. [PMID: 33241545 DOI: 10.1055/s-0040-1721414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Both advances in perioperative blood management, anesthesia, and surgical technique have improved transfusion rates following primary total knee arthroplasty (TKA), and have driven substantial change in preoperative blood ordering protocols. Therefore, blood management in TKA has seen substantial changes with the implementation of preoperative screening, patient optimization, and intra- and postoperative advances. Thus, the purpose of this study was to examine changes in blood management in primary TKA, a nationwide sample, to assess gaps and opportunities. The American College of Surgeons National Surgical Quality Improvement Program database was used to identify TKA (n = 337,160) cases from 2011 to 2018. The following variables examined, such as preoperative hematocrit (HCT), anemia (HCT <35.5% for females and <38.5% for males), platelet count, thrombocytopenia (platelet count < 150,000/µL), international normalized ration (INR), INR > 2.0, bleeding disorders, preoperative, and postoperative transfusions. Analysis of variances were used to examine changes in continuous variables, and Chi-squared tests were used for categorical variables. There was a substantial decrease in postoperative transfusions from high of 18.3% in 2011 to a low of 1.0% in 2018, (p < 0.001), as well as in preoperative anemia from a high of 13.3% in 2011 to a low of 9.5% in 2016 to 2017 (p < 0.001). There were statistically significant, but clinically irrelevant changes in the other variables examined. There was a HCT high of 41.2 in 2016 and a low of 40.4 in 2011 to 2012 (p < 0.001). There was platelet count high of 247,400 in 2018 and a low of 242,700 in 201 (p < 0.001). There was a high incidence of thrombocytopenia of 5.2% in 2017 and a low of low of 4.4% in 2018 (p < 0.001). There was a high INR of 1.037 in 2011 and a low of 1.021 in 2013 (p < 0.001). There was a high incidence of INR >2.0 of 1.0% in 2012 to 2015 and a low of 0.8% in 2016 to 2018 (p = 0.027). There was a high incidence of bleeding disorders of 2.9% in 2013 and a low of 1.8% in 2017 to 2018 (p < 0.001). There was a high incidence of preoperative transfusions of 0.1% in 2011 to 2014 and a low of <0.1% in 2015 to 2018 (p = 0.021). From 2011 to 2018, there has been substantial decreases in patients receiving postoperative transfusions after primary TKA. Similarly, although a decrease in patients with anemia was seen, there remains 1 out 10 patients with preoperative anemia, highlighting the opportunity to further improve and address this potentially modifiable risk factor before surgery. These findings may reflect changes during TKA patient selection, optimization, or management, and emphasizes the need to further advance multimodal approaches for perioperative blood management of TKA patients. This is a Level III study.
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Affiliation(s)
- Jared A Warren
- Department of Orthopedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | | | - Robert M Molloy
- Department of Orthopedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Carlos A Higuera
- Department of Orthopedic Surgery, Cleveland Clinic Florida, Weston, Florida
| | | | - Nicolas S Piuzzi
- Department of Orthopedic Surgery, Cleveland Clinic, Cleveland, Ohio
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Effects of Pre-Donated Autologous Blood Transfusion on Peri-Operative Hemoglobin Concentration and Mid-Term Health Outcomes in Primary Total Knee Arthroplasty. J Clin Med 2022; 11:jcm11082252. [PMID: 35456344 PMCID: PMC9028421 DOI: 10.3390/jcm11082252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 01/28/2023] Open
Abstract
The effects of auto-BT in primary TKA on the perioperative hemoglobin (Hb) concentration and mid-term health outcomes are unknown. This study was performed to analyze the detailed changes in the perioperative Hb concentration before and after the operation (days 0–14 postoperatively), cardiovascular events, and mortality rate within 1 and 5 years postoperatively. One hundred patients undergoing primary TKA with auto-BT using 800 mL of preoperatively collected blood at the authors’ institution were included. The mean Hb concentration before and after autologous blood collection was 12.7 ± 1.1 and 11.7 ± 1.2 g/dL, respectively. After primary TKA with auto-BT, the mean Hb concentration on day 0, 1, 3, 7, and 14 was 10.2 ± 1.2, 9.9 ± 1.2, 10.4 ± 1.3, 10.5 ± 1.3, and 11.0 ± 1.3 g/dL, respectively. Only one (1%) patient required additional allogenic blood transfusion. No patients developed cardiovascular events, and the 1- and 5-year postoperative mortality rate was 1.0% and 2.0%, respectively. Primary TKA with auto-BT showed relatively small perioperative changes in the Hb concentration, a low incidence of cardiovascular events, and a low mortality rate within 1 and 5 years postoperatively. These findings suggest that auto-BT, in which blood is preoperatively collected, is beneficial for patient safety and health, even if its cost-effectiveness may be debatable.
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Herndon CL, McCormick KL, Gazgalis A, Bixby EC, Levitsky MM, Neuwirth AL. Fragility Index as a Measure of Randomized Clinical Trial Quality in Adult Reconstruction: A Systematic Review. Arthroplast Today 2021; 11:239-251. [PMID: 34692962 PMCID: PMC8517286 DOI: 10.1016/j.artd.2021.08.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 08/08/2021] [Accepted: 08/29/2021] [Indexed: 12/16/2022] Open
Abstract
Background The Fragility Index (FI) and Reverse Fragility Index are powerful tools to supplement the P value in evaluation of randomized clinical trial (RCT) outcomes. These metrics are defined as the number of patients needed to change the significance level of an outcome. The purpose of this study was to calculate these metrics for published RCTs in total joint arthroplasty (TJA). Methods We performed a systematic review of RCTs in TJA over the last decade. For each study, we calculated the FI (for statistically significant outcomes) or Reverse Fragility Index (for nonstatistically significant outcomes) for all dichotomous, categorical outcomes. We also used the Pearson correlation coefficient to evaluate publication-level variables. Results We included 104 studies with 473 outcomes; 92 were significant, and 381 were nonstatistically significant. The median FI was 6 overall and 4 and 7 for significant and nonsignificant outcomes, respectively. There was a positive correlation between FI and sample size (R = 0.14, P = .002) and between FI and P values (R = 0.197, P = .000012). Conclusions This study is the largest evaluation of FI in orthopedics literature to date. We found a median FI that was comparable to or higher than FIs calculated in other orthopedic subspecialties. Although the mean and median FIs were greater than the 2 recommended by the American Academy of Orthopaedic Surgeons Clinical Practice Guidelines to demonstrate strong evidence, a large percentage of studies have an FI < 2. This suggests that the TJA literature is on par or slightly better than other subspecialties, but improvements must be made. Level of Evidence Level I; Systematic Review.
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Affiliation(s)
- Carl L Herndon
- Department of Orthopedic Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Kyle L McCormick
- Department of Orthopedic Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Anastasia Gazgalis
- Department of Orthopedic Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Elise C Bixby
- Department of Orthopedic Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Matthew M Levitsky
- Department of Orthopedic Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Alexander L Neuwirth
- Department of Orthopedic Surgery, Columbia University Irving Medical Center, New York, NY, USA
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Peng HM, Wang W, Lin J, Weng XS, Qian WW, Wang WD. Multimodal Peri-articular Injection with Tranexamic Acid can reduce postoperative blood loss versus Intravenous Tranexamic Acid in Total Knee Arthroplasty: A Randomized Controlled Trial. J Orthop Surg Res 2021; 16:546. [PMID: 34479593 PMCID: PMC8414855 DOI: 10.1186/s13018-021-02685-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/20/2021] [Indexed: 12/02/2022] Open
Abstract
Background Tranexamic acid (TXA) has shown significant reductions in blood loss and transfusion rates in total knee arthroplasty (TKA). However, the optimal administration route continues to be debated. The aim of this trial was to compare the effectiveness of intravenous (IV) versus peri-articular injection (PAI) application of tranexamic acid in patients undergoing total knee arthroplasty. Methods We conducted a randomized controlled, double-blinded study. A total of 93 patients undergoing primary unilateral TKA were randomly distributed between 2 groups: the IV group (47 cases; 1 g TXA IV) and the PAI group (46 cases; 1 g TXA injected peri-articularly). The amount of total and hidden blood loss (HBL), drainage, transfusion rate, hemoglobin and hematocrit drift, and complications were recorded. Results Peri-articular injection of TXA reduced total blood loss (P < 0.001) and HBL more than IV use of TXA (P < 0.001). No patients in either group received a transfusion. No symptomatic deep venous thrombosis or other severe complications occurred. Conclusion Peri-articular injection of TXA significantly reduced total blood loss and hidden blood loss to a greater degree than IV injection in total knee arthroplasty without reduction of drainage volume. Trial registration Chinese Clinical Trial Registry, ChiCTR-INR-16010270. Date of registration: December 27, 2016.
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Affiliation(s)
- Hui-Ming Peng
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No.1, Shuaifuyuan Wangfujing, Dongcheng District, Beijing, 100730, China
| | - Wei Wang
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No.1, Shuaifuyuan Wangfujing, Dongcheng District, Beijing, 100730, China
| | - Jin Lin
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No.1, Shuaifuyuan Wangfujing, Dongcheng District, Beijing, 100730, China.
| | - Xi-Sheng Weng
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No.1, Shuaifuyuan Wangfujing, Dongcheng District, Beijing, 100730, China
| | - Wen-Wei Qian
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No.1, Shuaifuyuan Wangfujing, Dongcheng District, Beijing, 100730, China
| | - Wen-da Wang
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No.1, Shuaifuyuan Wangfujing, Dongcheng District, Beijing, 100730, China
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Hemostatic techniques to reduce blood transfusion after primary TKA: a meta-analysis and systematic review. Arch Orthop Trauma Surg 2019; 139:1785-1796. [PMID: 31541274 DOI: 10.1007/s00402-019-03271-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Indexed: 01/19/2023]
Abstract
PURPOSE To investigate the efficacy of non-tranexamic acid (TXA) on reducing blood loss and requirements of allogeneic blood transfusion (ABT) in total knee arthroplasty (TKA). METHODS The PubMed, EMBASE, and the Cochrane Library databases were researched since incipiency to June 2018. Only randomized controlled trials (RCTs) involved with non-TXA hemostatic techniques in TKA met the inclusion criteria. RESULTS A total of 36 RCTs, including 1511 patients, were recruited for analysis. The results of subgroup analysis revealed that hemostatic techniques, which could substantially decrease the rate of ABT, were cell salvage with the transfusion trigger of 9 mg/dl, fibrin sealant with a dosage of 10 ml, and postoperative flexion position. CONCLUSION The available evidence in this meta-analysis suggests that postoperative flexion position, fibrin sealant, and cell salvage can substantially decrease the rate of ABT in TKA. Further studies, including more hemostatic methods and high-quality research, are expected.
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Miao Y, Guo W, An L, Fang W, Liu Y, Wang X, An L. Postoperative shed autologous blood reinfusion does not decrease the need for allogeneic blood transfusion in unilateral and bilateral total knee arthroplasty. PLoS One 2019; 14:e0219406. [PMID: 31283774 PMCID: PMC6613835 DOI: 10.1371/journal.pone.0219406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 06/21/2019] [Indexed: 01/28/2023] Open
Abstract
Postoperative shed autologous blood reinfusion techniques have been used for decades in total knee arthroplasty (TKA), but the effectiveness of this procedure is still a matter of debate. This multicenter retrospective study investigated the medical records of patients who underwent unilateral and bilateral TKA from January 1, 2015 to December 31, 2017 in three hospitals. According to whether postoperative shed autologous blood reinfusion was used, the patients were divided into the control group and the shed autologous blood reinfusion group. The volume of perioperative infusion of red blood cells and plasma, the blood transfusion-related costs, and the postoperative hospital stay were compared between the two groups of patients. A total of 200 unilateral and 74 bilateral TKA were included after successful matching. Among the patients who underwent unilateral TKA, the control group and the shed autologous blood reinfusion group had 95 and 91 patients, respectively, who received allogeneic blood infusion (P = 0.268). There was no significant difference in the number of units of allogeneic red blood cells infused (P = 0.154), while the transfusion-related cost was increased (P<0.001). The same phenomena were observed over the patients underwent bilateral TKA. Shed autologous blood reinfusion does not reduce the need for infusing allogeneic red blood cells. In addition, the procedure increases patient expense and may also lead to an extended postoperative hospital stay.
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Affiliation(s)
- YuLiang Miao
- Department of Anesthesiology, Chinese PLA No. 306 Hospital, Beijing, China
| | - WenZhi Guo
- Department of Anesthesiology, the seventh center of PLA general hospital, Beijing, China
| | - LiNa An
- Department of Anesthesiology, the third center of PLA general hospital, Beijing, China
| | - WeiWu Fang
- Department of Anesthesiology, Chinese PLA No. 306 Hospital, Beijing, China
| | - Yan Liu
- Department of Anesthesiology, Chinese PLA No. 306 Hospital, Beijing, China
| | - XiaoPing Wang
- Department of Orthopaedics, Chinese PLA No. 306 Hospital, Beijing, China
| | - LiKun An
- Department of Orthopaedics, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
- * E-mail:
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Liao X, Du K, Zhang J, Meng W, Zuo S, Huang Q, Wang H, Gou D. Red blood cells are damaged by intraoperative blood salvage via Ca2+-dependent and -independent mechanisms. Life Sci 2019; 227:114-121. [DOI: 10.1016/j.lfs.2019.03.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 03/13/2019] [Accepted: 03/16/2019] [Indexed: 11/27/2022]
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Chen CF, Tsai SW, Wu PK, Chen CM, Chen WM. Does continued aspirin mono-therapy lead to a higher bleeding risk after total knee arthroplasty? J Chin Med Assoc 2019; 82:60-65. [PMID: 30839406 DOI: 10.1016/j.jcma.2018.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
BACKGROUND Evidence about the risk of bleeding and thromboembolism because of aspirin mono-therapy in total knee arthroplasty (TKA) is scant. We wanted to validate the risks of bleeding and thromboembolism with continued aspirin mono-therapy in unilateral and simultaneous bilateral TKA. METHODS We enrolled a series of 1655 patients who underwent unilateral or simultaneous bilateral TKA between December 2010 and December 2012. Drainage amount, postoperative hemoglobin level, change in hemoglobin, calculated blood loss, incidence and the amount of blood transfused, and the proportion of thromboembolic events were compared between patients who were and patients who were not on continued aspirin mono-therapy. RESULTS Calculated blood loss (969.1 ± 324.9 vs. 904.0 ± 315.5 ml), transfusion amounts (1.3 ± 1.5 vs. 1.0 ± 1.3 IU), and percentage of transfused patients (53.0% vs. 40.2%) were higher in unilateral TKA patients on continued aspirin mono-therapy. Outcome parameters and the proportion of DVT between groups were not significantly different. One patient (0.3%) not on aspirin mono-therapy developed a pulmonary embolism, and two others (0.6%) had cerebrovascular events. CONCLUSION Despite the slightly higher risks of bleeding, continuing aspirin mono-therapy during TKA might be safe with low risks of perioperative cerebrovascular, cardiovascular, and venous thromboembolic events.
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Affiliation(s)
- Cheng-Fong Chen
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Orthopaedics, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Shang-Wen Tsai
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Orthopaedics, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Po-Kuei Wu
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Orthopaedics, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chao-Ming Chen
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Orthopaedics, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Wei-Ming Chen
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Orthopaedics, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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Schnurr C, Giannakopoulos I, Arbab D, Dargel J, Beckmann J, Eysel P. No benefit of autologous transfusion drains in total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2018; 26:1557-1563. [PMID: 28577064 DOI: 10.1007/s00167-017-4585-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 05/23/2017] [Indexed: 11/25/2022]
Abstract
PURPOSE AND HYPOTHESIS Autologous blood transfusion drains are commonly used to reduce allogeneic blood transfusion rate after total knee arthroplasty. There is conflicting evidence as to whether autologous transfusion drains (ABT drains) were effective when restrictive transfusion triggers were used. The aim of our study was to ascertain where, as a part of a blood management protocol, autologous blood transfusion drains reduce the allogeneic blood transfusion rate after total knee arthroplasty. METHODS Two-hundred total knee arthroplasty patients were included in the prospective randomized controlled study. After implantation, a Redon drain without vacuum assistance (control, n = 100) or an autologous blood transfusion drain (ABT group, n = 100) was used. Demographic and operative data were collected. The blood loss, total blood loss, blood values and transfusion rate were documented. RESULTS The blood loss in the drains was significantly increased for the ABT group (409 vs. 297 ml, p < 0.001). There was a non-significant trend towards a higher total blood loss for ABT patients (1844 vs. 1685 ml, n.s.). The allogeneic blood transfusion rate was similar for both groups (8 vs. 9%, n.s.). Similarly, the number of transfused blood units was comparable between both groups (0.2U/patient vs. 0.17U/patient n.s.). CONCLUSION In combination with restrictive blood transfusion triggers, ABT drains had no positive effect on the allogeneic blood transfusion rate. The blood loss in ABT drains was higher. As a consequence, the use of ABT drains was discontinued. LEVEL OF EVIDENCE I.
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Affiliation(s)
- Christoph Schnurr
- Clinic of Orthopedic Surgery, St. Vinzenz Hospital Düsseldorf, Schloßstr. 85, 40477, Düsseldorf, Germany.
| | - Ioannis Giannakopoulos
- Clinic of Orthopedic Surgery, St. Vinzenz Hospital Düsseldorf, Schloßstr. 85, 40477, Düsseldorf, Germany
| | - Dariusch Arbab
- Clinic of Orthopedic Surgery, Klinikum Dortmund, Beurhausstraße 40, 44137, Dortmund, Germany
| | - Jens Dargel
- Clinic for Orthopedic Surgery and Traumatology, University of Cologne, Joseph-Stelzmann-Str. 9, 50924, Cologne, Germany
| | - Johannes Beckmann
- Department for Endoprosthetics Lower Extremity, Sportklinik Stuttgart, Taubenheimstr. 8, 70372, Stuttgart, Germany
| | - Peer Eysel
- Clinic for Orthopedic Surgery and Traumatology, University of Cologne, Joseph-Stelzmann-Str. 9, 50924, Cologne, Germany
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Abstract
STUDY DESIGN Descriptive study. OBJECTIVES This study aimed to evaluate the hidden blood loss (HBL) of patients who underwent lumbar fusion surgery for degenerative spine and to analyze its risk factors. SUMMARY OF BACKGROUND DATA When planning transfusion strategies, blood loss calculation is important. However, in clinical practice, spine surgeons usually ignore the possibility that a large amount of HBL may occur after lumbar fusion surgery. MATERIALS AND METHODS We studied the patients who underwent posterior lumbar fusion (PLF) surgery for degenerative spine from 2014 to 2015 in one institution. The patient's demographics, comorbid conditions, coagulation panel value, surgical time, number of levels fused, American Society of Anesthesiologists (ASA) classification, cell saver, preoperative hematocrit level, preoperative hemoglobin level, and postoperative complications were collected retrospectively. Pearson correlation analyses were used to find an association between patient characteristics and HBL. Multivariate linear analysis was used to determine independent risk factors of HBL. RESULTS We reviewed 169 consecutive patients who underwent PLF surgery for degenerative spine in one institution. The mean amount of HBL was 588 mL, which was 39% of the total blood loss. On the basis of the model of multiple linear regression analysis, the multilevel fusion (P=0.001), surgical time (P=0.034), and fibrinogen level (P=0.027) were independent risk factors that contributed to HBL, but age of 60 years or above (P=0.110), postoperative complications (P=0.278), and cell saver were not (P=0.739). CONCLUSIONS We conclude that a large amount of HBL may occur in patients who underwent PLF surgery for degenerative spine. In addition, significant hidden loss may have a correlation with postoperative mortality. Multilevel fused, surgical time, and fibrinogen level should be paid close attention when considering strategies of fluid infusion and blood transfusion.
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Boutsiadis A, Reynolds RJ, Saffarini M, Panisset JC. Factors that influence blood loss and need for transfusion following total knee arthroplasty. ANNALS OF TRANSLATIONAL MEDICINE 2017; 5:418. [PMID: 29201870 DOI: 10.21037/atm.2017.08.11] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background Blood loss during total knee arthroplasty (TKA) remains a concern, as many patients require blood transfusions, which increase risks of allergic reactions, disease transmission, and thromboembolisms. The purpose was to determine factors associated with blood loss and need for transfusion in patients receiving routine TKA. Methods The authors prospectively analyzed 150 consecutive uncemented TKAs for age, gender, body mass index (BMI), anticoagulant medication, type of anesthesia, tranexamic acid (TXA) administration, tourniquet inflation, drain placement, pre- and post-operative Haemoglobin (Hb) level (g/dL), and whether transfusion was necessary. Univariable and multivariable regression analyses were performed to identify factors associated with Hb loss and need for transfusion with significance level set at P value<0.05. Results The cohort comprised 92 women and 58 men, aged 69.5±8.9 years. The mean Hb loss was 3.7±1.3 g/dL. The 20 patients (13%) who had transfusions also had lower preoperative Hb (12.6±1.2 g/dL) compared to the remaining patients (14.3±1.2 g/dL). Hb loss was significantly associated with preoperative Hb, TXA, and gender, but multivariable regression identified gender as a confounder and indicated that TXA reduced Hb loss by 0.92 g/dL. Multivariable regression revealed the need for transfusion was only significantly associated with preoperative Hb and indicated that a decrease of preoperative Hb by 1 g/dL nearly quadrupled the chances of needing transfusion. Conclusions Hb loss was significantly associated with preoperative Hb levels and use of TXA, while the need for transfusion was only associated with preoperative Hb levels. These findings could help identify patients at risk for blood transfusions. Level of evidence: level III, prospective case series.
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Affiliation(s)
- Achilleas Boutsiadis
- Department of Orthopaedic Surgery, Centre Osteoarticulaire des Cèdres, Grenoble, France
| | | | - Mo Saffarini
- Medical Technology, ReSurg SA, Nyon, Switzerland
| | - Jean-Claude Panisset
- Department of Orthopaedic Surgery, Centre Osteoarticulaire des Cèdres, Grenoble, France
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13
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Do autologous blood transfusion systems reduce allogeneic blood transfusion in total knee arthroplasty? Knee Surg Sports Traumatol Arthrosc 2017; 25:2957-2966. [PMID: 27085359 DOI: 10.1007/s00167-016-4116-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 03/29/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE To study whether autologus blood transfusion systems reduce the requirement of allogneic blood transfusion in patients undergoing total knee arthroplasty. METHODS A comprehensive search of the published literature with PubMed, Scopus and Science direct database was performed. The following search terms were used: (total knee replacement) OR (total knee arthroplasty) OR (TKA) AND (blood transfusion) OR (autologous transfusion) OR (autologous transfusion system). Using search syntax, a total of 748 search results were obtained (79 from PubMed, 586 from Science direct and 83 from Scopus). Twenty-one randomized control trials were included for this meta-analysis. RESULTS The allogenic transfusion rate in autologus blood transfusion (study) group was significantly lower than the control group (28.4 and 53.5 %, respectively) (p value 0.0001, Relative risk: 0.5). The median units of allogenic blood transfused in study control group and control group were 0.1 (0.1-3.0) and 1.3 (0.3-2.6), respectively. The median hospital stay in study group was 9 (6.7-15.6) days and control group was 8.7 (6.6-16.7) days. The median cost incurred for blood transfusion per patient in study and control groups was 175 (85.7-260) and 254.7 (235-300) euros, respectively. CONCLUSION This meta-analysis demonstrates that the use of auto-transfusion systems is a cost-effective method to reduce the need for and quantity of allogenic transfusion in elective total knee arthroplasty. LEVEL OF EVIDENCE Level I.
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14
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Liao XY, Zuo SS, Meng WT, Zhang J, Huang Q, Gou DM. Intraoperative blood salvage may shorten the lifespan of red blood cells within 3 days postoperatively: A pilot study. Medicine (Baltimore) 2017; 96:e8143. [PMID: 28953650 PMCID: PMC5626293 DOI: 10.1097/md.0000000000008143] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Intraoperative blood salvage (IBS) recovers most lost blood, and is widely used in the clinic. It is unclear why IBS does not reduce long-term postoperative requirements for red blood cells (RBCs), and 1 possibility is that IBS affects RBC lifespan. METHODS Prospectively enrolled patients who underwent spine, pelvic, or femur surgery not involving allogeneic RBC transfusion were grouped based on whether they received IBS or not. Volumes of blood lost and of RBCs salvaged during surgery were recorded. Total blood cell counts, levels of plasma-free hemoglobin, and CD235a-positive granulocytes were determined perioperatively. RESULTS Although intraoperative blood loss was higher in the IBS group (n = 45) than in the non-IBS group (n = 52) (P < .001), hemoglobin levels were similar between groups (P = .125) at the end of surgery. Hemoglobin levels increased in non-IBS patients (4 ± 11 g/L), but decreased in IBS patients (-7 ± 12 g/L) over the first 3 postoperative days. Nadir hemoglobin levels after surgery were higher in the non-IBS group (107 ± 12 g/L) than in the IBS group (91 ± 12 g/L). Salvaged RBC volume correlated with hemoglobin decrease (r = 0.422, P = .004). In multivariate analysis, salvaged RBC volume was an independent risk factor for hemoglobin decrease (adjusted odds ratio 1.002, 95% confidence interval 1.001-1.004, P = .008). Flow cytometry showed the numbers of CD235a-positive granulocytes after surgery to be higher in the IBS group than in the non-IBS group (P < .05). CONCLUSION IBS may shorten the lifespan of RBCs by triggering their engulfment upon re-infusion (China Clinical Trial Registry ChiCTR-OCH-14005140).
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Affiliation(s)
- Xin-Yi Liao
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi
| | - Shan-Shan Zuo
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan
| | - Wen-Tong Meng
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy
| | - Jie Zhang
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu
| | - Qin Huang
- Department of Anesthesiology, Hospital of Honghuagang District, Zunyi, Guizhou, China
| | - Da-Ming Gou
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi
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15
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Schwab PE, Lavand'homme P, Yombi J, Thienpont E. Aspirin mono-therapy continuation does not result in more bleeding after knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2017; 25:2586-2593. [PMID: 26515774 DOI: 10.1007/s00167-015-3824-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 09/25/2015] [Indexed: 11/26/2022]
Abstract
PURPOSE Current clinical practice guidelines sometimes still recommend stopping aspirin five to seven days before knee arthroplasty surgery. Literature regarding multimodal blood management and continuation of anti-platelet therapy in this type of surgery is scant. The study hypothesis was that knee arthroplasty under low-dose aspirin mono-therapy continuation does not cause more total blood loss than knee arthroplasty performed without aspirin. Blood loss would be measured by haemoglobin (Hb) and haematocrit (HTC) levels drop at day 2 or day 4 for patients who benefit from multimodal bleeding control measures. METHODS A database of all patients undergoing knee arthroplasty between 2006 and 2014 was analysed. Demographic, surgical and complete blood workup data were collected. A retrospective comparison study analysed both groups in terms of blood loss, by mean calculated blood loss as haemoglobin or haematocrit drop between the preoperative Nadir value and the postoperative day 2 and 4 value. A group of 198 (44 UKA and 154 TKA) patients underwent surgery without interrupting their aspirin therapy for cardiovascular prevention. Mean (SD) age was 71 (8) and the mean (SD) BMI was 29 (5.5) kg/m2. The control group consisted of 403 (102 UKA and 301 TKA) patients who were not under aspirin, or any other anti-platelet agent. Mean (SD) age was 65 (10) (p < 0.05) and the mean (SD) BMI was 29 (5.0) kg/m2 (n.s.). All patients in the control group were randomly selected. RESULTS There were no differences in terms of visible (early) or hidden (late) blood loss as measured by Hb drop in between both groups. There is no difference in transfusion rates. CONCLUSIONS Modern multimodal blood management provides sufficient blood loss prevention during and after knee arthroplasty to allow physicians to continue low-dose aspirin mono-therapy for cardiovascular prevention. LEVEL OF EVIDENCE III.
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Affiliation(s)
| | | | - JeanCyr Yombi
- University hospital Saint Luc, Av. Hippocrate 10, 1200, Brussels, Belgium
| | - Emmanuel Thienpont
- University hospital Saint Luc, Av. Hippocrate 10, 1200, Brussels, Belgium.
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Pan JK, Hong KH, Xie H, Luo MH, Guo D, Liu J. The efficacy and safety of autologous blood transfusion drainage in patients undergoing total knee arthroplasty: a meta-analysis of 16 randomized controlled trials. BMC Musculoskelet Disord 2016; 17:452. [PMID: 27806693 PMCID: PMC5094026 DOI: 10.1186/s12891-016-1301-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 10/15/2016] [Indexed: 11/24/2022] Open
Abstract
Background Autologous blood transfusion drainage (ABTD) has been used for many years to reduce blood loss in total knee arthroplasty (TKA). We evaluate the current evidence concerning the efficiency and safety of ABTD used in TKA compared with conventional suction drainage (CSD). Methods We performed a systematic literature search of the PubMed, Embase, Cochrane Library and four Chinese databases. All randomized controlled trials (RCTs) that compared the effects of ABTD versus CSD in TKA were included in the meta-analysis. Results Sixteen RCTs involving 1534 patients who compared the effects of ABTD versus CSD were included. Five of the RCTs were performed in Asia, ten in Europe, and one in North America. Patients in the ABTD group had a lower blood transfusion rate (OR: 0.25 [0.13, 0.47]; Z = 4.27, P < 0.0001) and fewer units transfused per patient (WMD: −0.68 [−0.98, −0.39]; Z = 4. 52, P < 0.00001) than did patients in the CSD group. Wound complications, deep vein thrombosis, febrile complications, post-operative hemoglobin days 5–8, drainage volume, and length of hospital stay did not differ significantly between the two types of drainage systems. Conclusion This meta-analysis suggests that ABTD is a safe and effective method that yields a lower blood transfusion rate and fewer units transfused per patient in TKA compared with CSD. Electronic supplementary material The online version of this article (doi:10.1186/s12891-016-1301-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jian-Ke Pan
- Department of Orthopedics, Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), No. 111 Dade Road, Guangzhou, Guangdong, 510120, China
| | - Kun-Hao Hong
- Department of Orthopedics, Guangdong Second Traditional Chinese Medicine Hospital, No. 60 Hengfu Road, Guangzhou, Guangdong, 510095, China
| | - Hui Xie
- Department of Orthopedics, Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), No. 111 Dade Road, Guangzhou, Guangdong, 510120, China
| | - Ming-Hui Luo
- Department of Orthopedics, Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), No. 111 Dade Road, Guangzhou, Guangdong, 510120, China
| | - Da Guo
- Department of Orthopedics, Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), No. 111 Dade Road, Guangzhou, Guangdong, 510120, China
| | - Jun Liu
- Department of Orthopedics, Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), No. 111 Dade Road, Guangzhou, Guangdong, 510120, China.
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17
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Meybohm P, Choorapoikayil S, Wessels A, Herrmann E, Zacharowski K, Spahn DR. Washed cell salvage in surgical patients: A review and meta-analysis of prospective randomized trials under PRISMA. Medicine (Baltimore) 2016; 95:e4490. [PMID: 27495095 PMCID: PMC4979849 DOI: 10.1097/md.0000000000004490] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 06/20/2016] [Accepted: 07/12/2016] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Cell salvage is commonly used as part of a blood conservation strategy. However concerns among clinicians exist about the efficacy of transfusion of washed cell salvage. METHODS We performed a meta-analysis of randomized controlled trials in which patients, scheduled for all types of surgery, were randomized to washed cell salvage or to a control group with no cell salvage. Data were independently extracted, risk ratio (RR), and weighted mean differences (WMD) with 95% confidence intervals (CIs) were calculated. Data were pooled using a random effects model. The primary endpoint was the number of patients exposed to allogeneic red blood cell (RBC) transfusion. RESULTS Out of 1140 search results, a total of 47 trials were included. Overall, the use of washed cell salvage reduced the rate of exposure to allogeneic RBC transfusion by a relative 39% (RR = 0.61; 95% CI 0.57 to 0.65; P < 0.001), resulting in an average saving of 0.20 units of allogeneic RBC per patient (weighted mean differences [WMD] = -0.20; 95% CI -0.22 to -0.18; P < 0.001), reduced risk of infection by 28% (RR = 0.72; 95% CI 0.54 to 0.97; P = 0.03), reduced length of hospital stay by 2.31 days (WMD = -2.31; 95% CI -2.50 to -2.11; P < 0.001), but did not significantly affect risk of mortality (RR = 0.92; 95% CI 0.63 to 1.34; P = 0.66). No statistical difference could be observed in the number of patients exposed to re-operation, plasma, platelets, or rate of myocardial infarction and stroke. CONCLUSIONS Washed cell salvage is efficacious in reducing the need for allogeneic RBC transfusion and risk of infection in surgery.
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Affiliation(s)
- Patrick Meybohm
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt
| | - Suma Choorapoikayil
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt
| | - Anke Wessels
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt
| | - Eva Herrmann
- Institute for Anesthesiology, University and University Hospital Zurich, Zurich, Switzerland
| | - Kai Zacharowski
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt
| | - Donat R. Spahn
- Institute of Biostatistics and Mathematical Modelling, Goethe University Frankfurt, Germany
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18
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Tang JH, Lyu Y, Cheng LM, Li YC, Gou DM. Risk Factors for the Postoperative Transfusion of Allogeneic Blood in Orthopedics Patients With Intraoperative Blood Salvage: A Retrospective Cohort Study. Medicine (Baltimore) 2016; 95:e2866. [PMID: 26937919 PMCID: PMC4779016 DOI: 10.1097/md.0000000000002866] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/23/2016] [Accepted: 01/27/2016] [Indexed: 11/25/2022] Open
Abstract
The purpose of this study is to explore the risk factors affecting the postoperative transfusion of allogeneic blood in patients undergoing orthopedics surgery with intraoperative blood salvage (IBS). A retrospective study of 279 patients undergoing orthopedic surgeries with IBS from May 2013 to May 2015 was enrolled. The binary logistic regression was used to find out the risk factors associated with postoperative transfusion of allogeneic blood in orthopedics patients with IBS, and then receiver operating characteristic (ROC) curve was drawn to determine the optimal threshold of the regression model.Single factor analysis showed that age, American Society of Anesthesiologists (ASA) grade, preoperative hemoglobin, operation time, received autologous blood, the laying time of autologous blood, bleeding volume, and postoperative drainage volume had significant effects on postoperative allogeneic blood transfusion.In binary logistic regression analysis, the independent factors predicting orthopedic patients with IBS need to transfuse allogeneic blood after surgeries were age (odds ratio [OR] = 0.415, P = 0.006), ASA grade (OR = 2.393, P = 0.035), preoperative hemoglobin (OR = 0.532, P = 0.022), and postoperative drainage volume (OR = 4.279, P = 0.000). The area under ROC curve was 0.79 and the predicted accuracy rate of the model was 81.58%.After operation, the orthopedic patients with IBS still have a high allogeneic blood transfusion rate, and IBS is not a perfect blood protection method. The logistic regression model of our study provides a reliable prediction for postoperative transfusion of allogeneic blood in orthopedic patients with IBS, which have a certain reference value.
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Affiliation(s)
- Jia-Hua Tang
- From the Department of Anesthesiology, Zunyi Medical University, Zunyi, Guizhou, China (J-HT, D-MG); Department of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (YL, Y-CL); and Department of Anesthesiology, Kunming Children's Hospital, Kunming, China (L-MC, YL)
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Springer BD, Odum SM, Fehring TK. What Is the Benefit of Tranexamic Acid vs Reinfusion Drains in Total Joint Arthroplasty? J Arthroplasty 2016; 31:76-80. [PMID: 26387037 DOI: 10.1016/j.arth.2015.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 07/27/2015] [Accepted: 08/07/2015] [Indexed: 02/01/2023] Open
Abstract
We sought to compare the efficacy and cost of reinfusion drains vs tranexamic acid (TA) in primary total joint athroplasty (TJA) patients. We randomized 186 primary TJAs (71 hips, 115 knees) to standard drains (61/186), autologous reinfusion drains (60/186), or single dose (20 mg/kg) of TA (65/186). There was a statistically significant (P < .0001) less drop in hemoglobin levels (2.98 mg/dL; range, 0.5-6.10) in the TA group compared with standard drains (P < .0001) and reinfusion drains (P < .0061). There was no significant difference in transfusion rates. At $581.89, the unit cost of the reinfusion system is substantially higher than the standard drain ($7.56) and TA ($35.91/g). The results of this randomized controlled trial demonstrate that TA is more efficacious and provides cost savings compared with reinfusion drains as a blood management tool for TJA.
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Affiliation(s)
| | - Susan M Odum
- OrthoCarolina Research Institute, Charlotte, North Carolina
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20
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Yang Y, Yong-Ming L, Pei-jian D, Jia L, Ying-ze Z. Leg position influences early blood loss and functional recovery following total knee arthroplasty: A randomized study. Int J Surg 2015; 23:82-6. [PMID: 26407829 DOI: 10.1016/j.ijsu.2015.09.053] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 09/17/2015] [Accepted: 09/19/2015] [Indexed: 12/24/2022]
Abstract
BACKGROUND Hidden blood loss is a major factor influencing functional recovery and quality of life in patients undergoing total knee arthroplasty. Special hip and knee flexion positions after have been reported to have promising results with respect to reducing perioperative blood loss. The purpose of this study was to determine the effect of postoperative leg position on blood loss and functional recovery after total knee arthroplasty. METHODS We enrolled 46 consecutive patients with degenerative osteoarthritis of the knee in this prospective, randomized study. The patients were randomly allocated to a flexion or an extension group. In the flexion group, the affected leg was elevated by 60° at the hip, and the knee was flexed by 60°, while in the extension group, the affected knee was fully extended postoperatively. Blood loss, hemoglobin level, knee circumference and range of motion (ROM) were recorded to determine the influence of postoperative leg position on clinical outcomes. RESULTS Although the transfusion rate was similar between the two groups (P > 0.05), other parameters related to blood loss (including calculated blood loss, hidden blood loss and postoperative knee circumference) were significantly lower in the flexion group than in the extension group (P < 0.05). After 6 weeks of rehabilitation, patients from the flexion group had gained a better ROM in the affected knee than had patients from the extension group (P = 0.04). At 6 months, however, the ROM of the affected knee was similar in both groups. The hospital stay was 1.9 days shorter in the flexion group than in the extension group. Wound infection rates were similar in both groups, and no proven case of deep vein thrombosis was observed in either group. CONCLUSIONS Elevation of the hip by 60° with 60° knee flexion is an effective and simple method to reduce blood loss after primary unilateral total knee arthroplasty, and contributes to better recovery of the functional ROM in the early postoperative period.
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Affiliation(s)
- Yang Yang
- Hebei Medical University, Shijiazhuang 050017, PR China
| | - Lv Yong-Ming
- The Affiliated Hospital of Chengde Medical Collage, Orthopedic Department, Chengde 067700, PR China
| | - Ding Pei-jian
- The Affiliated Hospital of Chengde Medical Collage, Orthopedic Department, Chengde 067700, PR China
| | - Li Jia
- The Affiliated Hospital of Chengde Medical Collage, Orthopedic Department, Chengde 067700, PR China
| | - Zhang Ying-ze
- Third Hospital of Hebei Medical University, Department of Orthopedics, Institute of Biomechanical Science, Biomechanical Key Laboratory of Hebei Province, Shijiazhuang 050051, PR China.
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21
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The Reinfusion of Autogenous Shed Blood After Unilateral Total Knee Arthroplasty Using the Perioperative Autologous Transfusion System OrthoPAT. Am J Ther 2015; 23:e1623-e1629. [PMID: 26291592 DOI: 10.1097/mjt.0000000000000308] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This study aims to explore the use of postoperative autogenous shed blood reinfusion using Orthopedic Perioperative Autotransfusion System (OrthoPAT) system in treating patients undergoing unilateral total knee arthroplasty (TKA). Fifty patients undergoing unilateral TKA were enrolled as the experimental group A and were treated with reinfusion of autologous shed blood within 6 hours after unilateral TKA using OrthoPAT. Accordingly, 50 patients undergoing unilateral TKA were selected as the experimental group B and were treated with allogeneic blood transfusion. Different indexes were observed at different times. Patients in both groups had relatively stable hemodynamics, and there was no postoperative coagulopathy. Prothrombin time, thrombin time, and activated partial thromboplastin time were lower, and fibrinogen was higher in group A than that in group B 24 hours after surgery (all P < 0.05). White blood cell, red blood cell, hemoglobin, hematocrit (Hct), and platelet count levels in group A were lower than those in group B 12 hours after surgery (all P < 0.05). The postoperative complications of the 2 groups have significant difference (P < 0.05). Postoperative autogenous shed blood reinfusion using OrthoPAT system in the treatment of patients undergoing unilateral TKA may improve the coagulation function of patients and reduce the rejection caused by standard allogeneic blood transfusion.
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22
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van Bodegom-Vos L, Voorn VM, So-Osman C, Vliet Vlieland TP, Dahan A, Koopman-van Gemert AW, Vehmeijer SB, Nelissen RG, Marang-van de Mheen PJ. Cell Salvage in Hip and Knee Arthroplasty: A Meta-Analysis of Randomized Controlled Trials. J Bone Joint Surg Am 2015; 97:1012-21. [PMID: 26085536 DOI: 10.2106/jbjs.n.00315] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Cell salvage is used to reduce allogeneic red blood-cell (RBC) transfusions in total hip arthroplasty (THA) and total knee arthroplasty (TKA). We performed a meta-analysis to assess the effectiveness of cell salvage to reduce transfusions in THA and TKA separately, and to examine whether recent trials change the conclusions from previous meta-analyses. METHODS We searched MEDLINE through January 2013 for randomized clinical trials evaluating the effects of cell salvage in THA and TKA. Trial results were extracted using standardized forms and pooled using a random-effects model. Methodological quality of the trials was evaluated using the Cochrane Collaboration's tool for risk-of-bias assessment. RESULTS Forty-three trials (5631 patients) were included. Overall, cell salvage reduced the exposure to allogeneic RBC transfusion in THA (risk ratio [RR], 0.66; 95% confidence interval [CI], 0.51 to 0.85) and TKA (RR, 0.51; 95% CI, 0.39 to 0.68). However, trials published in 2010 to 2012, with a lower risk of bias, showed no significant effect of cell salvage in THA (RR, 0.82; 95% CI, 0.66 to 1.02) and TKA (RR, 0.91; 95% CI, 0.63 to 1.31), suggesting that the treatment policy regarding transfusion may have changed over time. CONCLUSIONS Looking at all trials, cell salvage still significantly reduced the RBC exposure rate and the volume of RBCs transfused in both THA and TKA. However, in trials published more recently (2010 to 2012), cell salvage reduced neither the exposure rate nor the volume of RBCs transfused in THA and TKA, most likely explained by changes in blood transfusion management.
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Affiliation(s)
- Leti van Bodegom-Vos
- Department of Medical Decision Making, Leiden University Medical Center, J10-S, P.O. Box 9600, 2300 RC Leiden, the Netherlands. E-mail address for L. van Bodegom-Vos:
| | - Veronique M Voorn
- Department of Medical Decision Making, Leiden University Medical Center, J10-S, P.O. Box 9600, 2300 RC Leiden, the Netherlands. E-mail address for L. van Bodegom-Vos:
| | - Cynthia So-Osman
- Sanquin Research, Jon J. van Rood Netherlands Center for Clinical Transfusion Research, Plesmanlaan 1a, 2333 BZ Leiden, the Netherlands
| | - Thea P Vliet Vlieland
- Department of Orthopedics, Leiden University Medical Center, J11-R, P.O. Box 9600, 2300 RC Leiden, the Netherlands
| | - Albert Dahan
- Department of Anesthesiology, Leiden University Medical Center, P5-Q, P.O. Box 9600, 2300 RC Leiden, the Netherlands
| | - Ankie W Koopman-van Gemert
- Department of Anesthesiology, Albert Schweitzer Hospital Dordrecht, P.O. Box 444, 3300 AK Dordrecht, the Netherlands
| | - Stephan B Vehmeijer
- Department of Orthopedics, Reinier de Graaf Hospital Delft, P.O. Box 5011, 2600 GA Delft, the Netherlands
| | - Rob G Nelissen
- Department of Orthopedics, Leiden University Medical Center, J11-R, P.O. Box 9600, 2300 RC Leiden, the Netherlands
| | - Perla J Marang-van de Mheen
- Department of Medical Decision Making, Leiden University Medical Center, J10-S, P.O. Box 9600, 2300 RC Leiden, the Netherlands. E-mail address for L. van Bodegom-Vos:
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Yoshihara H, Yoneoka D. Predictors of allogeneic blood transfusion in total hip and knee arthroplasty in the United States, 2000-2009. J Arthroplasty 2014; 29:1736-40. [PMID: 24891002 DOI: 10.1016/j.arth.2014.04.026] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 04/06/2014] [Accepted: 04/21/2014] [Indexed: 02/01/2023] Open
Abstract
We examined the predictors of allogeneic blood transfusion (ALBT) in primary unilateral total hip arthroplasty (THA) and total knee arthroplasty (TKA), analyzing the Nationwide Inpatient Sample between 2000 and 2009. Multivariate logistic regression analysis was performed. Significant predictors of ALBT in both THA and TKA included older age, female gender, race, weight loss, anemia, Elixhauser Comorbidity Score, hospital caseload, hospital region, and insurance status. No autologous-related blood transfusion was a significant predictor of ALBT in THA, however, not in TKA. We believe that the utilization of ALBT in THA and TKA can decrease by taking these factors into consideration for patient blood management before surgery.
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Affiliation(s)
- Hiroyuki Yoshihara
- Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York; Department of Orthopaedic Surgery, SUNY Downstate Medical Center, Brooklyn, New York
| | - Daisuke Yoneoka
- Department of Statistical Science, School of Advanced Sciences, The Graduate University for Advanced Studies, Tachikawa, Tokyo, Japan
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Effectiveness of an autologous transfusion system following cemented and non-cemented revisions of total hip arthroplasty. INTERNATIONAL ORTHOPAEDICS 2014; 38:1603-8. [PMID: 24817099 DOI: 10.1007/s00264-014-2359-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Accepted: 04/10/2014] [Indexed: 10/25/2022]
Abstract
PURPOSE The goal of this study was to analyse the efficacy of blood autotransfusion using a continuous autologous transfusion system in revisions of total hip arthroplasty (THA). We looked at whether administration of allogeneic blood units was reduced in these cases and if there is a difference between cemented and non-cemented revisions. METHODS Between January 2011 and December 2011, patients being treated with revision THA were included (n = 411). The following parameters were analysed: patient age, gender, weight (kg), height (cm), body mass index (BMI, kg/m(2)), surgical diagnosis, treatment and American Society of Anesthesiologists (ASA) classification score. The difference between pre- and post-operative haemoglobin (Hb, g/dl), amount of peri-operative blood loss (ml), amount of retransfused washed shed blood and amount of allogeneic and/or autologous transfusion (ml) were recorded. RESULTS In both the cemented and non-cemented revision THA groups, there was no significant difference between pre- and post-operative Hb with or without using an autotransfusion system. In 92 of 186 cemented cases using an autologous transfusion system (49.5%) and 38 of 117 non-cemented cases using an autologous transfusion system (32.5%), allogeneic blood transfusion (ABT) was required. Cemented procedures using an autologous transfusion system got significantly more ABTs than non-cemented procedures using an autologous transfusion system (p = 0.0042, odds ratio = 2.035). CONCLUSIONS Use of an autologous transfusion system did not reduce the amount of ABT in revision THA in the patient cohort reported here. In our opinion, general blood management is required before and during surgery to reduce administration of ABT.
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Voorn VMA, Marang-van de Mheen PJ, Wentink MM, Kaptein AA, Koopman-van Gemert AWMM, So-Osman C, Vliet Vlieland TPM, Nelissen RGHH, van Bodegom-Vos L. Perceived barriers among physicians for stopping non-cost-effective blood-saving measures in total hip and total knee arthroplasties. Transfusion 2014; 54:2598-607. [PMID: 24797267 DOI: 10.1111/trf.12672] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 02/17/2014] [Accepted: 02/17/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Despite evidence that the blood-saving measures (BSMs) erythropoietin (EPO) and intra- and postoperative blood salvage are not (cost-)effective in primary elective total hip and knee arthroplasties, they are used frequently in Dutch hospitals. This study aims to assess the impact of barriers associated with the intention of physicians to stop BSMs. STUDY DESIGN AND METHODS A survey among 400 orthopedic surgeons and 400 anesthesiologists within the Netherlands was performed. Multivariate logistic regression was used to identify barriers associated with intention to stop BSMs. RESULTS A total of 153 (40%) orthopedic surgeons and 100 (27%) anesthesiologists responded. Of all responders 67% used EPO, perioperative blood salvage, or a combination. After reading the evidence on non-cost-effective BSMs, 50% of respondents intended to stop EPO and 53% to stop perioperative blood salvage. In general, barriers perceived most frequently were lack of attention for blood management (90% of respondents), department priority to prevent transfusions (88%), and patient characteristics such as comorbidity (81%). Barriers significantly associated with intention to stop EPO were lack of interest to save money and the impact of other involved parties. Barriers significantly associated with intention to stop perioperative blood salvage were concerns about patient safety, lack of alternatives, losing experience with the technique, and lack of interest to save money. CONCLUSION Physicians experience barriers to stop using BSMs, related to their own technical skills, patient safety, current blood management policy, and lack of interest to save money. These barriers should be targeted in strategies to make BSM use cost-effective.
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Affiliation(s)
- Veronique M A Voorn
- Department of Medical Decision Making, Leiden University Medical Center, Leiden, the Netherlands
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Voorn VMA, Marang-van de Mheen PJ, So-Osman C, Kaptein AA, van der Hout A, van den Akker-van Marle ME, Koopman-van Gemert AWMM, Dahan A, Nelissen RGHH, Vliet Vlieland TPMM, van Bodegom-Vos L. De-implementation of expensive blood saving measures in hip and knee arthroplasties: study protocol for the LISBOA-II cluster randomized trial. Implement Sci 2014; 9:48. [PMID: 24755214 PMCID: PMC4049434 DOI: 10.1186/1748-5908-9-48] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 04/08/2014] [Indexed: 11/29/2022] Open
Abstract
Background Despite evidence that erythropoietin and intra- and postoperative blood salvage are expensive techniques considered to be non-cost-effective in primary elective total hip and knee arthroplasties in the Netherlands, Dutch medical professionals use them frequently to prevent the need for allogeneic transfusion. To actually change physicians’ practice, a tailored strategy aimed at barriers that hinder physicians in abandoning the use of erythropoietin and perioperative blood salvage was systematically developed. The study aims to examine the effectiveness, feasibility and costs of this tailored de-implementation strategy compared to a control strategy. Methods/Design A cluster randomized controlled trial including an effect, process and economic evaluation will be conducted in a minimum of 20 Dutch hospitals. Randomisation takes place at hospital level. The hospitals in the intervention group will receive a tailored de-implementation strategy that consists of four components: interactive education, feedback in educational outreach visits, electronically sent reports on hospital performance (all aimed at orthopedic surgeons and anesthesiologists), and information letters or emails aimed at other involved professionals within the intervention hospital (transfusion committee, OR-personnel, pharmacists). The hospitals in the control group will receive a control strategy (i.e., passive dissemination of available evidence). Outcomes will be measured at patient level, using retrospective medical record review. This will be done in all hospitals at baseline and after completion of the intervention period. The primary outcome of the effect evaluation is the percentage of patients undergoing primary elective total hip or knee arthroplasty in which erythropoietin or perioperative blood salvage is applied. The actual exposure to the tailored strategy and users’ experiences will be assessed in the process evaluation. In the economic evaluation, the costs of the tailored strategy and the control strategy in relation to the difference in their effectiveness will be compared. Discussion This study will show whether a systematically developed tailored strategy is more effective for de-implementation of non-cost-effective blood saving measures than the control strategy. This knowledge can be used in national and international initiatives to make healthcare more efficient. It also provides more generalized knowledge regarding de-implementation strategies. Trial registration This trial is registered at the Dutch Trial Register NTR4044.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Leti van Bodegom-Vos
- Department of Medical Decision Making, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
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Abstract
STUDY DESIGN Retrospective study. OBJECTIVE To examine the predictors of allogeneic blood transfusion (ALBT) in spinal fusion. SUMMARY OF THE BACKGROUND DATA Spinal fusion is among the most common surgical procedures that necessitate blood transfusion. METHODS Using the appropriate International Classification of Diseases, 9th revision, Clinical Modification (ICD-9-CM) codes, patients who underwent spinal fusion from 2004 to 2009 were identified in the Nationwide Inpatient Sample database. These patients were then divided into groups of those who received ALBT and those who did not, using the appropriate ICD-9-CM code. Patient demographics, surgical variables, and hospital characteristics were also retrieved. Multivariate logistic regression analysis was performed to identify the predictors of ALBT in spinal fusion. RESULTS Significant predictors of ALBT in spinal fusion included age, female sex, race status, weight loss, anemia, Elixhauser Comorbidity Score, autologous-related blood transfusion, surgical level, surgical approach, revision surgery, number of fused vertebrae, and insurance status. Pediatric and elderly patients were more likely to receive ALBT than middle-aged patients. African American and Hispanic patients were more likely to receive ALBT than Caucasian patients. As the Elixhauser Comorbidity Score increased, the odds ratio increased (score ≥4; odds ratio, 3.07). Thoracolumbar fusion was the strongest predictor among surgery-related variables (odds ratio, 8.56). Private insurance patients were less likely to receive ALBT than Medicare patients. CONCLUSION This study identified significant predictors of ALBT in spinal fusion. These factors need to be taken into consideration when developing a patient blood management strategy before surgery. In this study, autologous-related blood transfusion could not avoid ALBT; on the contrary, it was a significant predictor. LEVEL OF EVIDENCE 3.
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Jakovina Blazekovic S, Bicanic G, Hrabac P, Tripkovic B, Delimar D. Pre-operative autologous blood donation versus no blood donation in total knee arthroplasty: a prospective randomised trial. INTERNATIONAL ORTHOPAEDICS 2013; 38:341-6. [PMID: 24305788 DOI: 10.1007/s00264-013-2185-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 11/03/2013] [Indexed: 10/25/2022]
Abstract
PURPOSE During total knee arthroplasty (TKA) blood loss can be significant and in spite of all techniques for reducing blood loss there is still a significant possibility for blood transfusions. For blood loss management during TKA, pre-operative autologous blood donation (PABD) is still a standard of care. In this prospective randomised study we have evaluated the efficacy of PABD in patients undergoing TKA to answer the question whether there is any need for autologous blood donations during TKA and, if yes, for which group of patients. METHODS Patients were randomised to three groups. In group 1 patients did not donate autologous blood, in group 2 patients donated 1 dose 72 hours prior to TKA and in group 3 patients donated autologous blood 14 days prior to TKA. In all patients haemoglobin, haematocrit, thrombocyte and reticulocyte values, iron concentrations (Fe, unsaturated iron binding capacity, total iron binding capacity), activated partial thromboplastin time, prothrombin time, and intra-operative and post-operative blood loss were measured and compared. RESULTS With PABD there was no reduction in allogeneic blood transfusions and a large number of taken doses of autologous blood was discarded, which significantly increased the cost of treatment for these patients. For patients undergoing TKA, PABD can provoke iatrogenic anaemia and thereby increase the likelihood of the need for allogeneic blood transfusion. CONCLUSIONS Results of our study showed that PABD in non-anaemic patients is not justified and is not economically feasible.
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Affiliation(s)
- Sanja Jakovina Blazekovic
- Unit of Anesthesia and Intensive Care, Department of Orthopaedic Surgery, Clinical Hospital Centre Zagreb, Zagreb, Croatia
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