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Nandakumar S, Singh N, Tharani AR, Pankiw M, Brezden-Masley C. Intravenous iron and iron deficiency anemia in patients with gastrointestinal cancer: A systematic review. PLoS One 2024; 19:e0302964. [PMID: 38776289 PMCID: PMC11111077 DOI: 10.1371/journal.pone.0302964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 04/17/2024] [Indexed: 05/24/2024] Open
Abstract
BACKGROUND Iron deficiency anemia (IDA) is a prevalent hematological complication associated with gastrointestinal (GI) cancers due to an increased loss of iron and decreased iron absorption. The purpose of this systematic review is to evaluate the use of parenteral iron to treat IDA in patients with GI cancer. METHODS PubMed, Cochrane, EMBASE, CINHAL and Scopus were searched from January 1, 2010 to September 29, 2023 with no language restrictions. We excluded editorials, case reports, abstracts, conference papers, and poster presentations. Studies were included if they discussed IDA, GI neoplasms, use of iron supplementation (with or without erythropoietin-stimulating agents [ESAs]), defined anemia and had an adult patient population. We assessed the efficacy of parenteral iron in comparison to other iron supplementation methods when treating IDA in patients with GI cancer. The Cochrane Risk of Bias Tool 2 (RoB 2) and the Risk Of Bias In Non-randomized Studies of Interventions (ROBINS-I) assessment tools were used to assess the quality of the included studies. Moreover, the Cochrane Effective Practice and Organization data collection form was used to collect pertinent study information. RESULTS Our search yielded 3,969 studies across all databases. Twenty-one studies were included (6 randomized control trials; 15 non-randomized studies). Of the 15 studies evaluating hemoglobin (Hb) response, seven studies found an increase in Hb levels when patients were treated with IV iron. The 14 studies evaluating red blood cell (RBC) transfusion rates found conflicting differences in RBC transfusion needs when treated with IV iron. Studies analyzing health related outcomes typically found an increase in quality of life and decreased post-operative complications. DISCUSSION This review demonstrates improved outcomes of IDA in patients with GI cancer treated with IV iron instead of other iron supplementation methods. Timely diagnosis and appropriate IDA management can greatly improve quality of life in this patient population, especially if myelosuppressive chemotherapy is required.
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Affiliation(s)
| | - Navreet Singh
- Department of Medicine, Mount Sinai Hospital, Toronto, ON, Canada
| | | | - Maya Pankiw
- Department of Medicine, Mount Sinai Hospital, Toronto, ON, Canada
| | - Christine Brezden-Masley
- Department of Medicine, Mount Sinai Hospital, Toronto, ON, Canada
- Sinai Health System, Lunenfeld-Tanenbaum Research Institute, Toronto, ON, Canada
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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2
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Harris AB, Root KT, Cueto R, Diaz MJ, Zhao A, Oni JK, Hegde V, Khanuja HS. The Definition of Anemia Matters When Using Preoperative Hemoglobin as a Screening Tool Prior to Total Hip and Knee Arthroplasty. J Arthroplasty 2024; 39:1240-1244. [PMID: 37939888 DOI: 10.1016/j.arth.2023.10.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Preoperative anemia is common in patients undergoing total hip arthroplasty (THA) and total knee arthroplasty (TKA). Several definitions of anemia have been described, with no clear consensus on the optimal one for preoperative screening. We hypothesized that depending on the definition used preoperatively, the proportion of anemic patients identified who would require a postoperative allogeneic blood transfusion would vary significantly. METHODS A total of 681,141 patients were identified in a national database who underwent either THA or TKA. Preoperative anemia was classified according to the World Health Organization (WHO) definition, Cleveland Clinic (CC) definition, or race, age, and sex-specific definition described by Beutler et al in 2006. The optimal preoperative (OP) hemoglobin thresholds to predict perioperative transfusions were also calculated using receiver operating characteristic curves. RESULTS When using the WHO definition, 18% of anemic patients required a transfusion versus 14% (OP definition), 12% (CC definition), and 16% (Beutler definition). Similarly, 0.69% of anemic patients sustained a periprosthetic joint infection within 30 days using the WHO definition versus 0.59% (OP definition), 0.60% (CC definition), or 0.66% (Beutler definition). Using the WHO definition, 5.3% of patients would have sustained a major complication versus 4.5% (OP definition), 4.4% (CC definition), and 5.0% (Beutler definition). CONCLUSIONS Variation in the definition of anemia for preoperative screening in THA and TKA results in substantial differences in discriminative ability to predict perioperative transfusions. The WHO definition identified the largest proportion of patients who ultimately received a perioperative transfusion.
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Affiliation(s)
- Andrew B Harris
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland
| | - Kevin T Root
- University of Florida College of Medicine, Gainesville, Florida
| | - Robert Cueto
- University of Florida College of Medicine, Gainesville, Florida
| | - Michael J Diaz
- University of Florida College of Medicine, Gainesville, Florida
| | - Amy Zhao
- The George Washington University College of Medicine, Washington, District of Columbia
| | - Julius K Oni
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland
| | - Vishal Hegde
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland
| | - Harpal S Khanuja
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland
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Lynch KT, Hassinger TE. Preoperative Identification and Management of Anemia in the Colorectal Surgery Patient. Clin Colon Rectal Surg 2023; 36:161-166. [PMID: 37113284 PMCID: PMC10125282 DOI: 10.1055/s-0043-1760868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Preoperative anemia is a common finding in patients undergoing colorectal surgery, particularly those with cancer. While often multifactorial, iron deficiency anemia remains the most common cause of anemia in this patient population. Although seemingly innocuous, preoperative anemia is associated with an increased risk of perioperative complications and need for allogenic blood transfusions, both of which may worsen cancer-specific survival. Preoperative correction of anemia and iron deficiency is thus necessary to diminish these risks. Current literature supports preoperative screening for anemia and iron deficiency in patients slated to undergo colorectal surgery for malignancy or for benign conditions with associated patient- or procedure-related risk factors. Accepted treatment regimens include iron supplementation-either oral or intravenous-as well as erythropoietin therapy. Autologous blood transfusion should not be utilized as a treatment for preoperative anemia when there is time to implement other corrective strategies. Additional study is still needed to better standardize preoperative screening and optimize treatment regimens.
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Affiliation(s)
- Kevin T. Lynch
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Taryn E. Hassinger
- Division of Colon and Rectal Surgery, Allegheny Health Network, Pittsburgh, Pennsylvania
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Muaddi H, Abreu P, Ivanics T, Claasen M, Yoon P, Gorgen A, Al-Adra D, Badenoch A, McCluskey S, Ghanekar A, Reichman T, Sapisochin G. The effect of perioperative packed red blood cells transfusion on patient outcomes after liver transplant for hepatocellular carcinoma. HPB (Oxford) 2022; 24:370-378. [PMID: 34325968 DOI: 10.1016/j.hpb.2021.06.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 06/14/2021] [Accepted: 06/25/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND The impact of packed Red Blood Cell (pRBC) transfusion on oncological outcomes after liver transplantation (LT) for Hepatocellular Carcinoma (HCC) remains controversial. We evaluated the impact of pRBC transfusion on HCC recurrence and overall survival (OS) after LT for HCC. METHODS Patients with HCC transplanted between 2000 and 2018 were included and stratified by receipt of pRBC transfusion. Outcomes were HCC recurrence and OS. Propensity score matching was performed to account for confounders. RESULTS Of the 795 patients, 234 (29.4%) did not receive pRBC transfusion. After matching the 1-, 3-, and 5-year cumulative incidence of recurrence was 6.6%, 12.5% and 14.8% for no-pRBC transfusion, and 8.6%, 18.8% and 21.3% (p = 0.61) for pRBC transfusion. The OS at 1-, 3-, 5-year was 93.0%, 84.6% and 75.8% vs 92.0%, 79.7% and 73.5% (p = 0.83) for no-pRBC transfusion and pRBC transfusion, respectively. There were no differences in recurrence (HR 1.13, 95%CI 0.71-1.78, p = 0.61) or OS (HR 1.04, 95%CI 0.71-1.54, p = 0.83). CONCLUSION Perioperative administration of pRBC in liver transplant recipients for HCC resulted in a nonsignificant increase of HCC recurrence and death after accounting for confounder. Surgeons should continue to exercise cation and optimize patients iron stores medically preoperatively.
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Affiliation(s)
- Hala Muaddi
- Division of General Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Phillipe Abreu
- Department of Surgery, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada; Multi-Organ Transplant, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada
| | - Tommy Ivanics
- Department of Surgery, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada; Multi-Organ Transplant, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada
| | - Marco Claasen
- Department of Surgery, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada; Multi-Organ Transplant, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada
| | - Peter Yoon
- Department of Surgery, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada; Multi-Organ Transplant, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada
| | - Andre Gorgen
- Department of Surgery, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada; Multi-Organ Transplant, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada
| | - David Al-Adra
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Wisconsin, United States
| | - Adam Badenoch
- Department of Anesthesia & Pain Medicine, Flinders Medical Centre, South Australia, Australia; Department of Anesthesia and Pain Management, Toronto General Hospital, Toronto, Ontario, Canada
| | - Stuart McCluskey
- Department of Anesthesia and Pain Management, Toronto General Hospital, Toronto, Ontario, Canada
| | - Anand Ghanekar
- Division of General Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada; Department of Surgery, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada; Multi-Organ Transplant, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada
| | - Trevor Reichman
- Division of General Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada; Department of Surgery, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada; Multi-Organ Transplant, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada
| | - Gonzalo Sapisochin
- Division of General Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada; Department of Surgery, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada; Multi-Organ Transplant, University Health Network-Toronto General Hospital, Toronto, Ontario, Canada.
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5
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Cheong CM, Golder AM, Horgan PG, McMillan DC, Roxburgh CSD. Evaluation of clinical prognostic variables on short-term outcome for colorectal cancer surgery: An overview and minimum dataset. Cancer Treat Res Commun 2022; 31:100544. [PMID: 35248885 DOI: 10.1016/j.ctarc.2022.100544] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/22/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Surgery for colorectal cancer is associated with post-operative morbidity and mortality. Multiple systematic reviews have reported on individual factors affecting short-term outcome following surgical resection. This umbrella review aims to synthesize the available evidence on host and other factors associated with short-term post-operative complications. METHODS A comprehensive search identified systematic reviews reporting on short-term outcomes following colorectal cancer surgery using PubMed, Cochrane Database of Systematic Reviews and Web of Science from inception to 8th September 2020. All reported clinicopathological variables were extracted from published systematic reviews. RESULTS The present overview identified multiple validated factors affecting short-term outcomes in patients undergoing colorectal cancer resection. In particular, factors consistently associated with post-operative outcome differed with the type of complication; infective, non-infective or mortality. A minimum dataset was identified for future studies and included pre-operative age, sex, diabetes status, body mass index, body composition (sarcopenia, visceral obesity) and functional status (ASA, frailty). A recommended dataset included antibiotic prophylaxis, iron therapy, blood transfusion, erythropoietin, steroid use, enhance recovery programme and finally potential dataset included measures of the systemic inflammatory response CONCLUSION: A minimum dataset of mandatory, recommended, and potential baseline variables to be included in studies of patients undergoing colorectal cancer resection is proposed. This will maximise the benefit of such study datasets.
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Affiliation(s)
- Chee Mei Cheong
- Academic Unit of Surgery, Glasgow Royal Infirmary, Glasgow United Kingdom.
| | - Allan M Golder
- Academic Unit of Surgery, Glasgow Royal Infirmary, Glasgow United Kingdom
| | - Paul G Horgan
- Academic Unit of Surgery, Glasgow Royal Infirmary, Glasgow United Kingdom
| | - Donald C McMillan
- Academic Unit of Surgery, Glasgow Royal Infirmary, Glasgow United Kingdom
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Kangaspunta M, Mäkijärvi J, Koskensalo S, Kokkola A, Arkkila P, Scheinin T, Rasilainen S. Preoperative intravenous iron treatment reduces postoperative complications and postoperative anemia in preoperatively anemic patients with colon carcinoma. Int J Colorectal Dis 2022; 37:449-455. [PMID: 34931280 PMCID: PMC8803765 DOI: 10.1007/s00384-021-04080-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/06/2021] [Indexed: 02/04/2023]
Abstract
PURPOSE Anemia is common among patients with colorectal cancer and is associated with an increased risk of complications and poorer survival rate. The main objective of our study was to determine the effect of preoperative intravenous iron supplementation therapy on the need for red blood cell transfusions, other postoperative complications, and length of hospital stay in colon cancer patients undergoing colon resection. METHODS In this retrospective cohort study, data were collected from medical records of all 549 colon carcinoma patients who underwent a colon resection in Helsinki University Hospital during the years 2017 and 2018. The patients were divided into two cohorts: one with anemic patients treated with preoperative intravenous iron supplementation therapy (180 patients) and one with anemic patients without preoperative intravenous iron supplementation therapy (138 patients). Non-anemic patients and patients requiring emergency surgery were excluded (231 patients). RESULTS Patients treated with intravenous iron had less postoperative complications (33.9% vs. 45.9%, p = 0.045) and a lower prevalence of anemia at 1 month after surgery (38.7% vs. 65.3%, p < 0.01) when compared with patients without preoperative iv iron treatment. No difference was found in the amount of red blood cell transfusions, length of stay, or mortality between the groups. CONCLUSION This is the first study demonstrating a significant decrease in postoperative complications in anemic colon cancer patients receiving preoperative intravenous iron supplementation therapy. This treatment also diminishes the rate of postoperative anemia, which is often associated with a facilitated recovery.
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Affiliation(s)
| | - Jorma Mäkijärvi
- Department of GI Surgery, Abdominal Centre, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Selja Koskensalo
- Department of GI Surgery, Abdominal Centre, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Arto Kokkola
- Department of GI Surgery, Abdominal Centre, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Perttu Arkkila
- Department of Gastroenterology, Abdominal Centre, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Tom Scheinin
- Department of GI Surgery, Abdominal Centre, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Suvi Rasilainen
- Department of GI Surgery, Abdominal Centre, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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7
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Tang G, Zhang L, Huang W, Wei Z. Iron Supplementation Effectively Ameliorates Anemia and Reduces the Need for Blood Transfusion in Patients Undergoing Colorectal Cancer Surgery: A Meta-Analysis. Nutr Cancer 2021; 74:2303-2312. [PMID: 34890292 DOI: 10.1080/01635581.2021.2014900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Anemia is common and harmful in patients undergoing colorectal cancer (CRC) surgery. Blood transfusion (BT) is used to treat anemia, but results in a poor oncology prognosis. Iron supplementation may be effective in improving anemia and reducing the need for BT, however, the results remain controversial. This meta-analysis was conducted to evaluate the efficacy of iron supplementation in improving hemoglobin concentrations (Hb) and reducing the need for BT. METHODS Up to February 10, 2021, PubMed, Web of Science, Cochrane Library, Embase databases were searched for studies evaluating the effects of iron supplementation on CRC surgery patients. Meta-analysis was conduct using the random-effects model. RESULTS Seven trials with 879 participants in total were included in the meta-analysis. The pooled findings suggested that iron supplementation effectively increased Hb (MD 0.41; 95% CI: 0.12, 0.69, P = 0.006) and reduced the risk of BT (RR 0.60, 95% CI 0.45, 0.78, P = 0.0002) compared with the control group. In addition, subgroup analyses showed that these benefits were observed with both oral and intravenous iron supplementation. CONCLUSION Iron supplementation is effective in ameliorating anemia and reducing the need for BT in CRC surgery patients.
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Affiliation(s)
- Gang Tang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Linyu Zhang
- Department of Clinical Medicine, Chongqing Medical University, Chongqing, China
| | - Wang Huang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhengqiang Wei
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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8
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Hung CM, Chen JJ, Zeng BY, Zeng BS, Chen YW, Suen MW, Wu MK, Tseng PT. Efficacy of Different Interventions to Reduce Pre- or Perioperative Blood Transfusion Rate in Patients with Colorectal Cancer: A Network Meta-Analysis of Randomized Controlled Trials. ACTA ACUST UNITED AC 2021; 28:3214-3226. [PMID: 34436045 PMCID: PMC8395415 DOI: 10.3390/curroncol28040279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 12/29/2022]
Abstract
Background: The high proportion of blood transfusions before and during surgery carries unnecessary risk and results in poor prognosis in colorectal cancer patients. Different pharmacological interventions (i.e., iron supplement or recombinant erythropoietin) to reduce blood transfusion rates have shown inconclusive results. Methods: This network meta-analysis (NMA) consisted of randomized controlled trials (RCTs) comparing the efficacy of different pharmacologic interventions (i.e., iron supplementation or recombinant erythropoietin) to reduce the blood transfusion rate. NMA statistics were conducted using the frequentist model. Results: Seven RCTs (688 participants) were included in this study. The NMA demonstrated that the combination of high-dose recombinant human erythropoietin and oral iron supplements was associated with the least probability of receiving a blood transfusion [odds ratio = 0.24, 95% confidence intervals (95% CIs): 0.08 to 0.73] and best reduced the amount of blood transfused if blood transfusion was necessary (mean difference = −2.62 U, 95% CI: −3.55 to −1.70 U) when compared to the placebo/control group. None of the investigated interventions were associated with any significantly different dropout rate compared to the placebo/control group. Conclusions: The combination of high-dose recombinant human erythropoietin and oral iron supplements might be considered as a choice for reducing the rate of blood transfusion in patients with colorectal cancer. However, future large-scale RCT with long-term follow-up should be warranted to approve the long-term safety.
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Affiliation(s)
- Chao-Ming Hung
- Division of General Surgery, Department of Surgery, E-Da Cancer Hospital, Kaohsiung 82445, Taiwan;
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 84001, Taiwan
| | - Jiann-Jy Chen
- Department of Otorhinolaryngology, E-Da Cancer Hospital, Kaohsiung 82445, Taiwan;
- Prospect Clinic for Otorhinolaryngology & Neurology, Kaohsiung 811, Taiwan;
| | - Bing-Yan Zeng
- Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445, Taiwan; (B.-Y.Z.); (B.-S.Z.)
| | - Bing-Syuan Zeng
- Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445, Taiwan; (B.-Y.Z.); (B.-S.Z.)
| | - Yen-Wen Chen
- Prospect Clinic for Otorhinolaryngology & Neurology, Kaohsiung 811, Taiwan;
| | - Mein-Woei Suen
- Department of Psychology, College of Medical and Health Science, Asia University, Taichung 413, Taiwan;
- Gender Equality Education and Research Center, Asia University, Taichung 413, Taiwan
- Department of Medical Research, Asia University Hospital, Asia University, Taichung 413, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 406040, Taiwan
| | - Ming-Kung Wu
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
- Correspondence: (M.-K.W.); (P.-T.T.); Tel.: +886-7-7317123 (M.-K.W.); +886-7-3524100 (P.-T.T.)
| | - Ping-Tao Tseng
- Prospect Clinic for Otorhinolaryngology & Neurology, Kaohsiung 811, Taiwan;
- Department of Psychology, College of Medical and Health Science, Asia University, Taichung 413, Taiwan;
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
- Correspondence: (M.-K.W.); (P.-T.T.); Tel.: +886-7-7317123 (M.-K.W.); +886-7-3524100 (P.-T.T.)
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Sawayama H, Miyamoto Y, Mima K, Kato R, Ogawa K, Hiyoshi Y, Shimokawa M, Akiyama T, Kiyozumi Y, Iwagami S, Iwatsuki M, Baba Y, Yoshida N, Baba H. Preoperative iron status is a prognosis factor for stage II and III colorectal cancer. Int J Clin Oncol 2021; 26:2037-2045. [PMID: 34302234 DOI: 10.1007/s10147-021-01995-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/19/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Iron deficiency anemia is represented in colorectal cancer (CRC) patients. Iron surplus load to increase non-transferrin bound iron (NTBI), and NTBI promotes cancer progression and influences microbiota. This study investigated whether preoperative serum iron status was associated with prognosis after CRC resection. METHODS We evaluated preoperative iron and transferrin saturation (TSAT), which was calculated as iron divided by total iron-binding capacity, in 327 patients who underwent surgery for Stage II-III CRC. Fe < 60 μg/dl and TSAT > 40% were defined as low and high iron, respectively. The associations between iron status and overall survival (OS) were evaluated in univariate and multivariate Cox proportional hazards analysis. RESULTS Of the 327 patients, 179 (54.7%), 124 (37.9%) and 24 (7.3%) had low, normal and high iron, respectively. In univariate analysis, low iron was associated with shorter OS (hazard ratio [HR] 2.821, 95% confidence interval [CI] 1.451-5.485, P = 0.002). High iron was also associated with shorter OS (HR 3.396, 95% CI 1.359-8.489, P = 0.009). In multivariate analysis, high age (P = 0.002), depth of invasion pT4 (P = 0.012), lymph-node metastasis presence (P = 0.035), low albumin (P = 0.011), low iron (HR 2.282, 95% CI 1.163-4.478, P = 0.016) and high iron (HR 3.757, 95% CI 1.486-9.494 P = 0.005) were independently associated with shorter OS. High iron was associated with the amount of intratumoral Fusobacterium nucleatum compared with normal iron. CONCLUSION Both low and high preoperative iron in Stage II-III CRC patients were associated with unfavorable OS in univariate and multivariate analyses.
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Affiliation(s)
- Hiroshi Sawayama
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Yuji Miyamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Kosuke Mima
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Rikako Kato
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Katsuhiro Ogawa
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Yukiharu Hiyoshi
- Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
| | - Mototsugu Shimokawa
- Department of Biostatistics, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takahiko Akiyama
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Yuki Kiyozumi
- Department of Biostatistics, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Shiro Iwagami
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Masaaki Iwatsuki
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Yoshifumi Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Naoya Yoshida
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
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Effectiveness of Iron Supplementation With or Without Erythropoiesis-Stimulating Agents on Red Blood Cell Utilization in Patients With Preoperative Anaemia Undergoing Elective Surgery: A Systematic Review and Meta-Analysis. Transfus Med Rev 2021; 35:103-124. [PMID: 33965294 DOI: 10.1016/j.tmrv.2021.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 03/24/2021] [Accepted: 03/30/2021] [Indexed: 02/07/2023]
Abstract
Patient Blood Management (PBM) is an evidence-based, multidisciplinary, patient-centred approach to optimizing the care of patients who might need a blood transfusion. This systematic review aimed to collect the best available evidence on the effectiveness of preoperative iron supplementation with or without erythropoiesis-stimulating agents (ESAs) on red blood cell (RBC) utilization in all-cause anaemic patients scheduled for elective surgery. Five databases and two trial registries were screened. Primary outcomes were the number of patients and the number of RBC units transfused. Effect estimates were synthesized by conducting meta-analyses. GRADE (Grades of Recommendation, Assessment, Development and Evaluation) was used to assess the certainty of evidence. We identified 29 randomized controlled trials (RCTs) and 2 non-RCTs comparing the effectiveness of preoperative iron monotherapy, or iron + ESAs, to control (no treatment, usual care, placebo). We found that: (1) IV and/or oral iron monotherapy may not result in a reduced number of units transfused and IV iron may not reduce the number of patients transfused (low-certainty evidence); (2) uncertainty exists whether the administration route of iron therapy (IV vs oral) differentially affects RBC utilization (very low-certainty evidence); (3) IV ferric carboxymaltose monotherapy may not result in a different number of patients transfused compared to IV iron sucrose monotherapy (low-certainty evidence); (4) oral iron + ESAs probably results in a reduced number of patients transfused and number of units transfused (moderate-certainty evidence); (5) IV iron + ESAs may result in a reduced number of patients transfused (low-certainty evidence); (6) oral and/or IV iron + ESAs probably results in a reduced number of RBC units transfused in transfused patients (moderate-certainty evidence); (7) uncertainty exists about the effect of oral and/or IV iron + ESAs on the number of patients requiring transfusion of multiple units (very low-certainty evidence). Effect estimates of different haematological parameters and length of stay were synthesized as secondary outcomes. In conclusion, in patients with anaemia of any cause scheduled for elective surgery, the preoperative administration of iron monotherapy may not result in a reduced number of patients or units transfused (low-certainty evidence). Iron supplementation in addition to ESAs probably results in a reduced RBC utilization (moderate-certainty evidence).
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Red blood cell transfusions and the survival in patients with cancer undergoing curative surgery: a systematic review and meta-analysis. Surg Today 2021; 51:1535-1557. [PMID: 33389174 DOI: 10.1007/s00595-020-02192-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/26/2020] [Indexed: 02/08/2023]
Abstract
Allogenic red blood cell transfusions exert a potential detrimental effect on the survival when delivered to cancer patients undergoing surgery with curative intent. We performed a systematic review and meta-analysis to assess the association between perioperative allogenic red blood cell transfusions and risk of death as well as relapse after surgery for localized solid tumors. PubMed, the Cochrane Library, and EMBASE were searched from inception to March 2019 for studies reporting the outcome of patients receiving transfusions during radical surgery for non-metastatic cancer. Risk of death and relapse were pooled to provide an adjusted hazard ratio with a 95% confidence interval [hazard ratio (HR) (95% confidence interval {CI})]. Mortality and relapse associated with perioperative transfusion due to cancer surgery were evaluated among participants (n = 123 studies). Overall, RBC transfusions were associated with an increased risk of death [HR = 1.50 (95% CI 1.42-1.57), p < 0.01] and relapse [HR = 1.36 (95% CI 1.26-1.46), p < 0.01]. The survival was reduced even in cancer at early stages [HR = 1.45 (1.36-1.55), p < 0.01]. In cancer patients undergoing surgery, red blood cell transfusions reduced the survival and increased the risk of relapse. Transfusions based on patients' blood management policy should be performed by applying a more restrictive policy, and the planned preoperative administration of iron, if necessary, should be pursued.
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Shestakov AL, Bitarov TT, Nikoda VV, Boeva IA, Tskhovrebov AT, Tarasova IA, Bezaltynnykh AA, Gorshunova AP. [Enhanced recovery program in thoracoabdominal surgery]. VOPROSY KURORTOLOGII, FIZIOTERAPII, I LECHEBNOI FIZICHESKOI KULTURY 2021; 98:46-52. [PMID: 34965714 DOI: 10.17116/kurort20219806246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
UNLABELLED Significant improvement of treatment outcomes and reduction of postoperative hospital stay can be achieved, provided a multifaceted approach used in the management of patients. The introduction of the enhanced recovery program addressing all possible factors of the perioperative period will contribute to the treatment protocol development for patients after extensive surgery on the esophagus. OBJECTIVE To improve medical rehabilitation outcomes in patients after extensive surgery for benign and malignant diseases of the esophagus by implementing an enhanced recovery program. MATERIALS AND METHODS Patients with benign and malignant esophageal diseases underwent radical surgical repair under general balanced anesthesia with mechanical ventilation. With the collaboration of surgery, anesthesiology, and intensive care staff, a proprietary day-by-day enhanced recovery program was developed based on existing guidelines for patient management and systematic reviews on the enhanced recovery protocol after surgical esophageal repair. RESULTS The developed patient management program was effective due to the reduction of intensive care unit stay and the total postoperative stay in all main group patients. The use of minimally invasive video-endoscopic techniques contributed to the reduction of intensive care unit stay. A less severe surgical stress response was observed in patients in the group of thoracoscopic subtotal esophageal resections. CONCLUSION The introduction of the enhanced recovery program promotes the reduction of hospital stay and ICU stay in surgical esophageal repair patients. Also, it allows optimizing the postoperative management of patients with complicated and uncomplicated postoperative periods.
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Affiliation(s)
- A L Shestakov
- Russian Scientific Center for Surgery named after Academician B.V. Petrovsky, Moscow, Russia
| | - T T Bitarov
- Russian Scientific Center for Surgery named after Academician B.V. Petrovsky, Moscow, Russia
| | - V V Nikoda
- Russian Scientific Center for Surgery named after Academician B.V. Petrovsky, Moscow, Russia
| | - I A Boeva
- Russian Scientific Center for Surgery named after Academician B.V. Petrovsky, Moscow, Russia
| | - A T Tskhovrebov
- Russian Scientific Center for Surgery named after Academician B.V. Petrovsky, Moscow, Russia
| | - I A Tarasova
- Russian Scientific Center for Surgery named after Academician B.V. Petrovsky, Moscow, Russia
| | - A A Bezaltynnykh
- Russian Scientific Center for Surgery named after Academician B.V. Petrovsky, Moscow, Russia
| | - A P Gorshunova
- Russian Scientific Center for Surgery named after Academician B.V. Petrovsky, Moscow, Russia
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The Road to Transfusion-free Craniosynostosis Repair in Children Less Than 24 Months Old: A Quality Improvement Initiative. Pediatr Qual Saf 2020; 5:e331. [PMID: 32766502 PMCID: PMC7365706 DOI: 10.1097/pq9.0000000000000331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 06/18/2020] [Indexed: 12/25/2022] Open
Abstract
Introduction: Pediatric craniofacial reconstruction has historically resulted in extensive blood loss necessitating transfusion. This single-center quality improvement initiative evaluates the impact of perioperative practice changes on the allogeneic transfusion rate for children 24 months and younger of age undergoing craniofacial reconstruction. Methods: At project initiation, an appointed core group of anesthesiologists provided all intraoperative anesthetic care for patients undergoing craniofacial reconstruction. Standardized anesthetic guidelines established consistency between providers. Using the Plan-do-check-act methodology, practice changes had been implemented and studied over a 5-year period. Improvement initiatives included developing a temperature-management protocol, using a postoperative transfusion protocol, administering intraoperative tranexamic acid, and a preincisional injection of 0.25% lidocaine with epinephrine. For each year of the project, we acquired data for intraoperative and postoperative allogeneic transfusion rates. Results: A cohort of 119 pediatric patients, ages 4–24 months, underwent anterior or posterior vault reconstruction for craniosynostosis at a tertiary children’s hospital between March 2013 and November 2018. Intraoperative and postoperative transfusion of allogeneic blood products in this cohort decreased from 100% preintervention to 22.7% postintervention. Conclusions: Interdepartmental collaboration and practice modifications using sequential Plan-do-check-act cycles resulted in a bundle of care that leads to a sustainable decrease in the rate of intraoperative and postoperative allogeneic blood transfusions in patients less than 24 months of age undergoing craniosynostosis repair. This bundle decreases the risk of transfusion-related morbidity for these patients. Other institutions looking to achieve similar outcomes can implement this project.
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Kam PMH, Chu CWH, Chan EMY, Liu OL, Kwok KH. Use of intravenous iron therapy in colorectal cancer patient with iron deficiency anemia: a propensity-score matched study. Int J Colorectal Dis 2020; 35:521-527. [PMID: 31930457 DOI: 10.1007/s00384-020-03508-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/08/2020] [Indexed: 02/04/2023]
Abstract
PURPOSE Iron deficiency anemia is common in colorectal cancer patients and is related to poor surgical outcome. Increasing evidence supports preoperative use of intravenous iron (IVI) to correct anemia. Our study investigates effect of preoperative IVI on hemoglobin level. METHODS From August 2017 to March 2019, colorectal cancer patients with iron deficiency anemia received intravenous iron at least 2 weeks before their scheduled operations (IVI group). These patients' prospectively collected data were compared to a historic cohort of anemic patients who received elective colorectal surgery within 3 years before the study period (non-IVI). RESULTS Forty-six patients were included after receiving intravenous iron. After propensity score matching on 1:2 ratio, 38 patients in IVI group were matched with 62 patients from non-IVI group. There was no statistical difference for preoperative mean hemoglobin level between the two groups (8.43 g/dL in IVI, 8.79 g/dL in non-IVI, p = 0.117), but IVI group has significantly higher mean hemoglobin level on admission (10.63 g/dL in IVI, 9.46 g/dL in non-IVI, p = < 0.001). IVI group had higher median hemoglobin rise (1.9 in IVI, 0.6 in non-IVI, p = <0.001) and significantly less red cell transfusion (8 patients in IVI, 30 in non-IVI, p = 0.006). Subgroup analysis showed that less patients in IVI group required transfusions in preoperative period (1 in IVI group, 20 in non-IVI, p < 0.001). CONCLUSION Our data suggested that IVI can significantly increase hemoglobin level in iron deficiency anemic patients before colorectal surgery, with reduction in red cell transfusions.
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Affiliation(s)
- Philip Ming-Ho Kam
- Department of Surgery, Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Hong Kong.
| | - Colin Wai-Ho Chu
- Department of Surgery, Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Hong Kong
| | - Emily Mei-Yi Chan
- Department of Surgery, Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Hong Kong
| | - On-Lai Liu
- Department of Surgery, Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Hong Kong
| | - Kam-Hung Kwok
- Department of Surgery, Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Hong Kong
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Tyan P, Taher A, Carey E, Sparks A, Radwan A, Amdur R, Tamim H, Gu A, Robinson H, Moawad GN. The effect of anemia severity on postoperative morbidity among patients undergoing laparoscopic hysterectomy for benign indications. Acta Obstet Gynecol Scand 2019; 99:112-118. [PMID: 31449328 DOI: 10.1111/aogs.13718] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 08/03/2019] [Accepted: 08/05/2019] [Indexed: 01/02/2023]
Abstract
INTRODUCTION One-third of non-pregnant women worldwide are anemic.1 Anemia is a known independent risk factor for postoperative morbidity.2 Given that the vast majority of hysterectomies are not performed in the emergency setting, we designed this study to evaluate the effect of preoperative anemia on postoperative morbidity following laparoscopic hysterectomy performed for benign indications. Our main goal is to encourage surgeons to use anemia-corrective measures before surgery when feasible. MATERIAL AND METHODS Retrospective cohort study of 98 813 patients who underwent a laparoscopic hysterectomy between 2005 and 2016 for benign indications identified through the American College of Surgeons National Surgical Quality Improvement Program. Anemia was examined as a function of hematocrit and was analyzed as an ordinal variable stratified by anemia severity as mild, moderate or severe. Associations between preoperative anemia and patient demographics, preoperative comorbidities and postoperative outcomes were evaluated using univariate analyses. Multivariable logistic regression models were used to identify independent associations between hematocrit level and postoperative outcomes after adjusting for confounding covariates. At the multivariable logistic regression level, anemia severity was analyzed using hematocrit as a continuous variable to assess the independent association between each 5% decrease in hematocrit level and several postoperative morbidities. RESULTS Of the 98 813 patients who met our inclusion and exclusion criteria, 19.5% were anemic. A lower preoperative hematocrit was associated with higher body mass index, younger age, Black or African American race, longer operative times, and multiple other medical comorbidities. After appropriate regression modeling, anemia was identified as an independent risk factor for extended length of stay, readmission and composite morbidity after surgery. CONCLUSIONS Preoperative anemia is common among patients undergoing laparoscopic hysterectomy. Preoperative anemia increases patients' risk for multiple postoperative comorbidities. Given that most hysterectomies are performed in the elective setting, gynecologic surgeons should consider the use of anemia-corrective measures to minimize postoperative morbidity.
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Affiliation(s)
- Paul Tyan
- Division of Minimally Invasive Gynecologic Surgery, Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Ali Taher
- Division of Hematology and Oncology, Department of Internal Medicine, American University of Beirut, Beirut, Lebanon
| | - Erin Carey
- Division of Minimally Invasive Gynecologic Surgery, Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Andrew Sparks
- Department of Surgery, School of Medicine & Health Sciences, The George Washington University, Washington, DC, USA
| | - Amr Radwan
- Department of Internal Medicine, St. Elizabeth's Medical Center, Brighton, MA, USA
| | - Richard Amdur
- Department of Surgery, School of Medicine & Health Sciences, The George Washington University, Washington, DC, USA
| | - Hani Tamim
- Department of Internal Medicine, American University of Beirut, Beirut, Lebanon
| | - Alex Gu
- School of Medicine and Health Sciences, The George Washington University, Washington, DC, USA
| | - Hannah Robinson
- School of Medicine and Health Sciences, The George Washington University, Washington, DC, USA
| | - Gaby N Moawad
- Division of Minimally Invasive Gynecologic Surgery, Department of Obstetrics and Gynecology, The George Washington University, Washington, DC, USA
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Shin HW, Park JJ, Kim HJ, You HS, Choi SU, Lee MJ. Efficacy of perioperative intravenous iron therapy for transfusion in orthopedic surgery: A systematic review and meta-analysis. PLoS One 2019; 14:e0215427. [PMID: 31059515 PMCID: PMC6502310 DOI: 10.1371/journal.pone.0215427] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 04/02/2019] [Indexed: 01/07/2023] Open
Abstract
Perioperative anemia frequently occurs in patients undergoing orthopedic surgery. We aimed to evaluate the efficacy of perioperative intravenous iron therapy (IVIT) on transfusion and recovery profiles during orthopedic surgery. We searched PubMed, Embase, Cochrane, and Google Scholar for eligible clinical trials (randomized controlled trials, RCTs; case-control studies, CCSs) in comparing IVIT and no iron therapy, up to September 2018. Primary outcomes were the effects of IVIT on the proportion of patients transfused and units of red blood cells (RBCs) transfused perioperatively. Secondary outcomes were the effects of IVIT on recovery profiles, such as length of hospital stay (LOS), post-operative infection, and mortality. Subgroup analysis was performed based on iron dose (low: ≤ 300 mg, high: > 400 mg), IVIT period (pre-operative, post-operative, perioperative), and study design. We identified 12 clinical trials (4 RCTs with 616 patients and 8 CCSs with 1,253 patients). IVIT significantly reduced the proportion of patients transfused by 31% (RR, 0.69; P = 0.0002), and units of RBCs transfused by 0.34 units/person (MD, -0.34; P = 0.0007). For subgroup analysis by iron dose, low- or high-dose IVIT significantly reduced the proportion of patients transfused (RR, 0.73, P = 0.005; RR, 0.68, P = 0.008), and RBC units transfused (MD, -0.47, P < 0.0001; MD, -0.28, P = 0.04). For subgroup analysis by period, IVIT administered post-operatively significantly reduced the proportion of patients transfused (post-operative: RR, 0.60, P = 0.002; pre-operative: RR, 0.74, P = 0.06) and RBC units transfused (post-operative: MD, -0.44, P <0.00001; pre-operative: MD, -0.29, P = 0.06). For subgroup analysis by study design, IVIT decreased the proportion of patients transfused and RBC units transfused in the group of CCSs, but IVIT in the group of RCTs did not. IVIT significantly shortened LOS by 1.6 days (P = 0.0006) and reduced post-operative infections by 33% (P = 0.01). IVIT did not change mortality. Perioperative IVIT during orthopedic surgery, especially post-operatively, appears to reduce the proportion of patients transfused and units of RBCs transfused, with shorter LOS and decreased infection rate, but no change in mortality rate. These were only found in CCSs and not in RCTs due to the relatively small number of RCTs with low to high risk of bias.
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Affiliation(s)
- Hye Won Shin
- Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
- * E-mail:
| | - Jeong Jun Park
- Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Hyun Jung Kim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Hae Sun You
- Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Sung Uk Choi
- Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Mee Ju Lee
- Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
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Patient blood management for liver resection: consensus statements using Delphi methodology. HPB (Oxford) 2019; 21:393-404. [PMID: 30446290 DOI: 10.1016/j.hpb.2018.09.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/21/2018] [Accepted: 09/27/2018] [Indexed: 01/28/2023]
Abstract
BACKGROUND Blood loss and transfusion remain a significant concern in liver resection (LR). Patient blood management (PBM) programs reduce use of transfusions and improve outcomes and costs, but are not standardized for LR. This study sought to create an expert consensus statement on PBM for LR using modified Delphi methodology. METHODS An expert panel representing hepato-biliary surgery, anesthesiology, and transfusion medicine was invited to participate. 28 statements addressing the 3 pillars of PBM were created. Panelists were asked to rate statements on a 7-point Likert scale. Three-rounds of iterative rating and feedback were completed anonymously, followed by an in-person meeting. Consensus was reached with at least 70% agreement. RESULTS The 35 experts panel recommended routine pre-operative transfusion risk assessment, and investigation and management of anemia with iron supplementation. Intra-operatively, restrictive fluid administration without routine central line insertion was recommended, along with intermittent hepatic pedicle occlusion and surgical techniques considerations. Specific criteria for restrictive intra-operative and post-operative transfusion strategy were recommended. CONCLUSIONS PBM for LR included medical and technical interventions throughout the perioperative continuum, addressing specificities of LR. Diffusion and adoption of these recommendations can standardize PBM for LR to improve patient outcomes and resource utilization.
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Efficacy and safety of erythropoietin and iron therapy to reduce red blood cell transfusion in surgical patients: a systematic review and meta-analysis. Can J Anaesth 2019; 66:716-731. [DOI: 10.1007/s12630-019-01351-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 12/19/2018] [Accepted: 12/29/2018] [Indexed: 12/21/2022] Open
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Lopez-Aguiar AG, Ethun CG, Pawlik TM, Tran T, Poultsides GA, Isom CA, Idrees K, Krasnick BA, Fields RC, Salem A, Weber SM, Martin RCG, Scoggins CR, Shen P, Mogal HD, Beal EW, Schmidt C, Shenoy R, Hatzaras I, Maithel SK. Association of Perioperative Transfusion with Recurrence and Survival After Resection of Distal Cholangiocarcinoma: A 10-Institution Study from the US Extrahepatic Biliary Malignancy Consortium. Ann Surg Oncol 2019; 26:1814-1823. [PMID: 30877497 PMCID: PMC10182408 DOI: 10.1245/s10434-019-07306-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND Perioperative allogeneic blood transfusion is associated with poor oncologic outcomes in multiple malignancies. The effect of blood transfusion on recurrence and survival in distal cholangiocarcinoma (DCC) is not known. METHODS All patients with DCC who underwent curative-intent pancreaticoduodenectomy at 10 institutions from 2000 to 2015 were included. Primary outcomes were recurrence-free (RFS) and overall survival (OS). RESULTS Among 314 patients with DCC, 191 (61%) underwent curative-intent pancreaticoduodenectomy. Fifty-three patients (28%) received perioperative blood transfusions, with a median of 2 units. There were no differences in baseline demographics or operative data between transfusion and no-transfusion groups. Compared with no-transfusion, patients who received a transfusion were more likely to have (+) margins (28 vs 14%; p = 0.034) and major complications (46 vs 16%; p < 0.001). Transfusion was associated with worse median RFS (19 vs 32 months; p = 0.006) and OS (15 vs 29 months; p = 0.003), which persisted on multivariable (MV) analysis for both RFS [hazard ratio (HR) 1.8; 95% confidence interval (CI) 1.1-3.0; p = 0.031] and OS (HR 1.9; 95% CI 1.1-3.3; p = 0.018), after controlling for portal vein resection, estimated blood loss (EBL), grade, lymphovascular invasion (LVI), and major complications. Similarly, transfusion of ≥ 2 pRBCs was associated with lower RFS (17 vs 32 months; p < 0.001) and OS (14 vs 29 months; p < 0.001), which again persisted on MV analysis for both RFS (HR 2.6; 95% CI 1.4-4.5; p = 0.001) and OS (HR 4.0; 95% CI 2.2-7.5; p < 0.001). The RFS and OS of patients transfused 1 unit was comparable to patients who were not transfused. CONCLUSION Perioperative blood transfusion is associated with decreased RFS and OS after resection for distal cholangiocarcinoma, after accounting for known adverse pathologic factors. Volume of transfusion seems to exert an independent effect, as 1 unit was not associated with the same adverse effects as ≥ 2 units.
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Affiliation(s)
- Alexandra G Lopez-Aguiar
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Cecilia G Ethun
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Timothy M Pawlik
- Division of Surgical Oncology, Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA
- Division of Surgical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Thuy Tran
- Department of Surgery, Stanford University Medical Center, Stanford, CA, USA
| | - George A Poultsides
- Department of Surgery, Stanford University Medical Center, Stanford, CA, USA
| | - Chelsea A Isom
- Division of Surgical Oncology, Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kamran Idrees
- Division of Surgical Oncology, Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Bradley A Krasnick
- Department of Surgery, Washington University School of Medicine, St Louis, MO, USA
| | - Ryan C Fields
- Department of Surgery, Washington University School of Medicine, St Louis, MO, USA
| | - Ahmed Salem
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Sharon M Weber
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Robert C G Martin
- Division of Surgical Oncology, Department of Surgery, University of Louisville, Louisville, KY, USA
| | - Charles R Scoggins
- Division of Surgical Oncology, Department of Surgery, University of Louisville, Louisville, KY, USA
| | - Perry Shen
- Department of Surgery, Wake Forest University, Winston-Salem, NC, USA
| | - Harveshp D Mogal
- Department of Surgery, Wake Forest University, Winston-Salem, NC, USA
| | - Eliza W Beal
- Division of Surgical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Carl Schmidt
- Division of Surgical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Rivfka Shenoy
- Department of Surgery, New York University, New York, NY, USA
| | | | - Shishir K Maithel
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA, USA.
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Ellermann I, Bueckmann A, Eveslage M, Buddendick H, Latal T, Niehoff D, Geissler RG, Hempel G, Kerkhoff A, Berdel WE, Roeder N, Van Aken HK, Zarbock A, Steinbicker AU. Treating Anemia in the Preanesthesia Assessment Clinic. Anesth Analg 2018; 127:1202-1210. [DOI: 10.1213/ane.0000000000003583] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Preoperative Preparations for Enhanced Recovery After Surgery Programs: A Role for Prehabilitation. Surg Clin North Am 2018; 98:1149-1169. [PMID: 30390849 DOI: 10.1016/j.suc.2018.07.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Preoperative risk assessment is valuable only if subsequent targeted optimization of patient care is allowed. Early assessment of high-risk surgical patients is essential to facilitate appropriate optimization. Preoperative assessment and optimization should not be exclusively focused on patients' comorbidities, but also include nutritional assessment, functional capacity, and promote healthy life style habits that affect surgical outcomes (eg, smoking cessation); it requires a multidisciplinary approach.
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Three point transfusion risk score in hepatectomy: an external validation using the American College of Surgeons - National Surgical Quality Improvement Program (ACS-NSQIP). HPB (Oxford) 2018; 20:669-675. [PMID: 29459001 DOI: 10.1016/j.hpb.2018.01.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/21/2017] [Accepted: 01/07/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Risk of red blood cell transfusion (RBCT) in partial hepatectomy is 17-27%; strategies to reduce transfusions can be targeted in patients at increased risk. A Three Point Transfusion Risk Score (TRS) was previously developed to predict patients' risk of transfusion during and following hepatectomy. Here, it was subject to external validation using the ACS-NSQIP database. METHODS TRIPOD guidelines were followed. A validation cohort was created with the ACS-NSQIP dataset. Risk groups for RBCT were created using the TRS: anemia (hematocrit ≤36%), major liver resection (≥4 segments) and primary liver malignancy. Concordance index was used to assess the discrimination. The Hosmer-Lemeshow test for goodness of fit and calibration curves were used to assess calibration. RESULTS Of 2854 hepatectomies, 18.9% received RBCT. The TRS stratified patients from low (8.5% risk of RBCT) to very high risk (40.6%) of RBCT. The concordance was 0.68 (95% CI 0.66-0.70). Hosmer-Lemeshow test and calibration curves supported good predictive performance of the model. CONCLUSION The TRS adequately discriminated risk of RBCT in an external sample of patients undergoing hepatectomy. It provides a simple method to identify patients at high transfusion risk. It can be used to tailor patient blood management initiatives and reduce the use of RBCT.
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Kinnear N, O'Callaghan M, Hennessey D, Liddell H, Newell B, Bolt J, Lawrentschuk N. Intra-operative cell salvage in urological surgery: a systematic review and meta-analysis of comparative studies. BJU Int 2018; 123:210-219. [PMID: 29726092 DOI: 10.1111/bju.14373] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To evaluate systematically the safety and efficacy of intra-operative cell salvage (ICS) in urology. METHODS A search of Medline, Embase and Cochrane Library to August 2017 was performed using methods pre-published on PROSPERO. Reporting followed the Preferred Reporting Items for Systematic Review and Meta-analysis guidelines. Eligible titles were comparative studies published in English that used ICS in urology. Primary outcomes were allogeneic transfusion rates (ATRs) and tumour recurrence. Secondary outcomes were complications and cost. RESULTS Fourteen observational studies were identified, with a total of 4 536 patients. ICS was compared with no the blood conservation technique (seven studies), preoperative autologous donation (PAD; five studies) or both (two studies). Cohorts underwent open prostatectomy (11 studies), open cystectomy (two studies) or open partial nephrectomy (one study). Meta-analysis was possible only for ATRs within prostatectomy studies. In this setting, ICS reduced ATR compared with no the blood conservation technique (odds ratio [OR] 0.34, 95% confidence interval [CI] 0.15-0.76) but not PAD (OR 0.76, 95% CI 0.39-1.31). In the non-prostatectomy setting, ATRs amongst patients who underwent ICS were significantly higher or similar in one and two studies, respectively. Tumour recurrence was found to be significantly less common (two studies), similar (eight studies) or not measured (four studies). All six studies reporting complications found no difference in their ICS cohorts. Regarding cost, one study from 1995 found ICS more expensive than PAD, while two more recent studies found ICS to be cheaper than no blood conservation technique. As a result of inter-study heterogeneity, meta-analyses were not possible for recurrence, complications or cost. CONCLUSION Low-level evidence exists that, compared with other blood conservation techniques, ICS reduces ATR and cost while not affecting complications. It does not appear to increase tumour recurrence post-prostatectomy, although follow-up durations were short. Small study sizes and short follow-ups mean conclusions cannot be drawn with regard to recurrence after nephrectomy or cystectomy. Randomized trials with long-term follow-up evaluating ICS in urology are required.
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Affiliation(s)
- Ned Kinnear
- Department of Urology, Austin Health, Melbourne, Vic., Australia.,Department of Urology, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Michael O'Callaghan
- South Australian Prostate Cancer Clinical Outcomes Collaborative, Flinders Medical Centre, Adelaide, SA, Australia.,School of Medicine, University of Adelaide, Adelaide, SA, Australia.,Flinders Centre for Innovation in Cancer, Adelaide, SA, Australia
| | - Derek Hennessey
- Department of Urology, Austin Health, Melbourne, Vic., Australia.,Department of Urology, Craigavon Area Hospital, Portadown, UK
| | - Heath Liddell
- Department of Urology, Austin Health, Melbourne, Vic., Australia.,Department of Urology, Queen Elizabeth II Jubilee Hospital, Coopers Plains, Melbourne, Vic., Australia
| | - Bradley Newell
- Department of Urology, Austin Health, Melbourne, Vic., Australia
| | - John Bolt
- Department of Urology, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Nathan Lawrentschuk
- Department of Urology, Austin Health, Melbourne, Vic., Australia.,Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Vic., Australia.,Olivia Newton-John Cancer Research Institute, Melbourne, Vic., Australia
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Barni S. 5th International multidisciplinary course on iron anemia, 31st March-1 April 2017, Florence, Italy. Expert Rev Hematol 2017; 10:1-40. [PMID: 29086623 DOI: 10.1080/17474086.2017.1399059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sandro Barni
- a Director of Oncology Department, Director of Medical Oncology Unit , ASST Bergamo Ovest , Treviglio , Italy
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Red Blood Cell Transfusion and Surgical Site Infection After Colon Resection Surgery: A Cohort Study. Anesth Analg 2017; 125:1316-1321. [PMID: 28504993 DOI: 10.1213/ane.0000000000002099] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Surgical site infections (SSIs) after colon surgery remain a critical safety issue. Patients with an SSI have an increased risk of death, prolonged hospitalization, and increased costs of care. Red blood cell (RBC) transfusion is given during the perioperative period to increase blood oxygen delivery, but it is associated with complications, including infection. We hypothesized that RBC transfusion would be associated with increased SSI risk in patients undergoing colon resection surgery. METHODS A retrospective cohort study was performed using the 2014 National Surgical Quality Improvement Program participant use file. Patients who had colon resection surgery were identified using current procedural terminology codes. The association between perioperative RBC transfusion and superficial and deep incisional SSIs, organ space SSIs, and postoperative septic shock was modeled using logistic regression with propensity score analysis. RESULTS Of 23,388 patients who had colon resection surgery, 1845 (7.9%) received perioperative RBC transfusion. After controlling for confounders with propensity score analysis and inverse probability of treatment weighting, RBC transfusion had no apparent association with superficial incisional SSI (odds ratio [OR], 1.18; 99% confidence interval [CI], 0.48-2.88) or deep incisional SSI (OR, 1.47; 99% CI, 0.23-9.43). However, RBC transfusion appeared to be associated with increased risk of organ space SSI (OR, 2.93; 99% CI, 1.43-6.01) and septic shock (OR, 9.23; 99% CI, 3.53-24.09). CONCLUSIONS RBC transfusion has no apparent association with increased risk for incisional SSIs, but may be associated with increased risk for organ space SSI and septic shock after colon resection surgery.
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Verhaeghe L, Bruyneel L, Stragier E, Ferrante M, Dierickx D, Prenen H. The effectiveness of intravenous iron for iron deficiency anemia in gastrointestinal cancer patients: a retrospective study. Ann Gastroenterol 2017; 30:654-663. [PMID: 29118560 PMCID: PMC5670285 DOI: 10.20524/aog.2017.0189] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/03/2017] [Indexed: 01/04/2023] Open
Abstract
Background: Knowledge of the role of intravenous iron without the use of additional erythropoietic stimulating agents in anemic cancer patients is limited. This study evaluated the effect of ferric carboxymaltose (FCM) in a group of digestive oncology (DIO) patients and aimed to differentiate therapy response according to different types of iron deficiency (ID) anemia. Methods: In this retrospective study, we identified DIO patients who were receiving FCM and had eligible baseline and follow-up hemoglobin (Hb) levels that did not require red blood cell transfusion. Subgroup analyses examined adequately versus inadequately treated patients and low (<100 µg/L) vs. high (>100 µg/L) baseline ferritin levels. Inadequate treatment was defined as administration of an insufficient dose of FCM, based on the modified Ganzoni formula. Results: A total of 414 patients were receiving FCM, of whom 41 were excluded because of transfusion and another 70 because of unknown or inadequate baseline iron status. Thus, the study group consisted of 303 patients. Follow-up serum levels were evaluated after a median of 4 weeks. Overall, the median change between baseline and follow-up Hb was 0.5 (interquartile range [IQR]: -0.1–1.6) g/dL. No significant difference in this change was found between the adequately and inadequately dosed groups. The median change in Hb was significantly greater in the low baseline ferritin group than in the high baseline ferritin group: 1.2 (IQR: 0.3–2.2) vs. 0.4 (IQR: -0.3–1.4) g/dL, respectively; P=0.004. Conclusions: Intravenous administration of iron in DIO patients with ID anemia leads to a significant increase in Hb. Moreover, differentiating between the types of ID anemia based on ferritin levels could be applied to predict therapy response, although better biomarkers are needed.
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Affiliation(s)
- Laurens Verhaeghe
- Department of Internal Medicine, University Hospitals Leuven (Laurens Verhaeghe), KU Leuven, Belgium
| | - Luk Bruyneel
- Institute for Healthcare Policy (Luk Bruyneel), KU Leuven, Belgium
| | - Elisabeth Stragier
- Department of Gastroenterology and Hepatology, University Hospitals Leuven (Elisabeth Stragier, Marc Ferrante, Hans Prenen), KU Leuven, Belgium
| | - Marc Ferrante
- Department of Gastroenterology and Hepatology, University Hospitals Leuven (Elisabeth Stragier, Marc Ferrante, Hans Prenen), KU Leuven, Belgium
| | - Daan Dierickx
- Department of Hematology, University Hospitals Leuven (Daan Dierickx), KU Leuven, Belgium
| | - Hans Prenen
- Department of Gastroenterology and Hepatology, University Hospitals Leuven (Elisabeth Stragier, Marc Ferrante, Hans Prenen), KU Leuven, Belgium
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Saxena A, Valle SJ, Liauw W, Morris DL. Allogenic Blood Transfusion Is an Independent Predictor of Poorer Peri-operative Outcomes and Reduced Long-Term Survival after Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy: a Review of 936 Cases. J Gastrointest Surg 2017; 21:1318-1327. [PMID: 28560703 DOI: 10.1007/s11605-017-3444-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 05/02/2017] [Indexed: 01/31/2023]
Abstract
INTRODUCTION There is a paucity of data on the impact of allogenic blood transfusion (ABT) on morbidity and survival outcomes after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC). METHODS Nine hundred and thirty-five consecutive CRS/HIPEC procedures were performed between 1996 and 2016 at a high-volume institution in Sydney, Australia. Of these, 337(36%) patients required massive ABT (MABT) (≥5 units). Peri-operative complications were graded according to the Clavien-Dindo classification. The association of concomitant MABT with 21 peri-operative outcomes and overall survival (OS) was assessed using univariate and multivariate analyses. RESULTS In-hospital mortality was 1.8%. Patients requiring MABT had more extensive disease as reflected by a higher peritoneal cancer index (≥17) (70 vs. 29%, p < 0.001) and longer operative times (≥9 h) (82 vs. 35%, p < 0.001). After accounting for confounding factors, MABT was associated with in-hospital mortality (relative risk (RR), 7.72; 95% confidence interval (CI), 1.35-10.11; p = 0.021) and grade III/IV morbidity (RR, 2.05; 95% CI, 1.42-2.95; p < 0.001). MABT was associated with an increased incidence of prolonged hospital stay (≥28 days) (RR, 1.86; 95% CI, 1.26-2.74; p = 0.002) and intensive care unit stay (≥4 days) (RR, 1.83; 95% CI, 1.24-2.70, p = 0.002). It was also associated with a significant OS in patients with colorectal cancer peritoneal carcinomatosis (RR 4.49; p < 0.001) and pseudomyxoma peritonei (RR, 4.37; p = 0.026), but not appendiceal cancer (p = 0.160). CONCLUSION MABT is an independent predictor for poorer peri-operative outcomes including in-hospital mortality and grade III/IV morbidity. It may also compromise long-term survival, particularly in patients with colorectal cancer peritoneal carcinomatosis.
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Affiliation(s)
- Akshat Saxena
- UNSW Department of Surgery, St George Hospital, Kogarah, New South Wales, Australia.
| | - Sarah J Valle
- UNSW Department of Surgery, St George Hospital, Kogarah, New South Wales, Australia
| | - Winston Liauw
- UNSW Department of Surgery, St George Hospital, Kogarah, New South Wales, Australia
| | - David L Morris
- UNSW Department of Surgery, St George Hospital, Kogarah, New South Wales, Australia
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Low MSY, Grigoriadis G. Iron deficiency and new insights into therapy. Med J Aust 2017; 207:81-87. [DOI: 10.5694/mja16.01304] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 02/09/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Michael SY Low
- Monash Health, Melbourne, VIC
- Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC
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Barni S, Gascòn P, Petrelli F, García-Erce JA, Pedrazzoli P, Rosti G, Giordano G, Mafodda A, Múñoz M. Position paper on management of iron deficiency in adult cancer patients. Expert Rev Hematol 2017; 10:685-695. [PMID: 28656800 DOI: 10.1080/17474086.2017.1343140] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Disorders of iron metabolism are commonly seen in onco-hematological clinical practice. Iron-deficiency anemia and cancer-associated anemia are usually treated with supportive therapies. Optimal management of these conditions are discussed in this perspective paper. Areas covered: A position paper discussing a number of hot topics on anemia in cancer patients is presented. The main areas covered by experts in the field are: definitions, prevalence and consequences of anemia and iron deficiency, incidence of anemia resulting from targeted therapies, importance of anemia diagnosis and monitoring, evaluation of iron status before and during treatment, role of transfusions and erythropoiesis-stimulating agents, management of iron deficiency with or without anemia, parenteral iron supplementation, role of new oral iron formulations, safety and cost issues regarding different iron compounds and administration routes. Expert commentary: Despite the availability of newer therapeutic options for its management, anemia still represents a major complication of treatment in cancer patients (surgery, chemotherapy, radiotherapy, targeted therapies), aggravating physical impairment, and negatively affecting general outcome. The view expressed by the panelists, attendees of the 4th Mediterranean Course on Iron Anemia, summarizes what they consider optimal clinical practice for screening, diagnosis, treatment and monitoring of iron deficiency and anemia in cancer patients.
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Affiliation(s)
- Sandro Barni
- a Oncology Department , Medical Oncology Unit , Treviglio , Italy
| | - Pere Gascòn
- b Division of Medical Oncology , Hospital Clinic, University of Barcelona , Barcelona , Spain
| | - Fausto Petrelli
- a Oncology Department , Medical Oncology Unit , Treviglio , Italy
| | | | - Paolo Pedrazzoli
- d Medical Oncology , Fondazione IRCCS Policlinico San Matteo , Pavia , Italy
| | - Giovanni Rosti
- d Medical Oncology , Fondazione IRCCS Policlinico San Matteo , Pavia , Italy
| | - Giulio Giordano
- e General Medicine and Hematology Department , General Medicine and Hematology Regional Hospital 'A. Cardarelli' , Campobasso , Italy
| | - Antonio Mafodda
- f Medical Oncology Unit , A.O. B.M.M , Reggio Calabria , Italy
| | - Manuel Múñoz
- g Peri-operative Transfusion Medicine , School of Medicine, University of Malaga , Malaga , Spain
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Reflections on multiple strategies to reduce transfusion in cancer patients: A joint narrative. Transfus Apher Sci 2017; 56:322-329. [DOI: 10.1016/j.transci.2017.05.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Stein J, Connor S, Virgin G, Ong DEH, Pereyra L. Anemia and iron deficiency in gastrointestinal and liver conditions. World J Gastroenterol 2016; 22:7908-25. [PMID: 27672287 PMCID: PMC5028806 DOI: 10.3748/wjg.v22.i35.7908] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 07/18/2016] [Accepted: 08/10/2016] [Indexed: 02/06/2023] Open
Abstract
Iron deficiency anemia (IDA) is associated with a number of pathological gastrointestinal conditions other than inflammatory bowel disease, and also with liver disorders. Different factors such as chronic bleeding, malabsorption and inflammation may contribute to IDA. Although patients with symptoms of anemia are frequently referred to gastroenterologists, the approach to diagnosis and selection of treatment as well as follow-up measures is not standardized and suboptimal. Iron deficiency, even without anemia, can substantially impact physical and cognitive function and reduce quality of life. Therefore, regular iron status assessment and awareness of the clinical consequences of impaired iron status are critical. While the range of options for treatment of IDA is increasing due to the availability of effective and well-tolerated parenteral iron preparations, a comprehensive overview of IDA and its therapy in patients with gastrointestinal conditions is currently lacking. Furthermore, definitions and assessment of iron status lack harmonization and there is a paucity of expert guidelines on this topic. This review summarizes current thinking concerning IDA as a common co-morbidity in specific gastrointestinal and liver disorders, and thus encourages a more unified treatment approach to anemia and iron deficiency, while offering gastroenterologists guidance on treatment options for IDA in everyday clinical practice.
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Elmi M, Mahar A, Kagedan D, Law CH, Karanicolas PJ, Lin Y, Callum J, Coburn NG, Hallet J. The impact of blood transfusion on perioperative outcomes following gastric cancer resection: an analysis of the American College of Surgeons National Surgical Quality Improvement Program database. Can J Surg 2016; 59:322-9. [PMID: 27668330 PMCID: PMC5042719 DOI: 10.1503/cjs.004016] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2016] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Red blood cell transfusions (RBCT) carry risk of transfusion-related immunodulation that may impact postoperative recovery. This study examined the association between perioperative RBCT and short-term postoperative outcomes following gastrectomy for gastric cancer. METHODS Using the American College of Surgeons National Surgical Quality Improvement Program database, we compared outcomes of patients (transfused v. nontransfused) undergoing elective gastrectomy for gastric cancer (2007-2012). Outcomes were 30-day major morbidity, mortality and length of stay. The association between perioperative RBCT and outcomes was estimated using modified Poisson, logistic, or negative binomial regression. RESULTS Of the 3243 patients in the entire cohort, we included 2884 patients with nonmissing data, of whom 535 (18.6%) received RBCT. Overall 30-day major morbidity and mortality were 20% and 3.5%, respectively. After adjustment for baseline and clinical characteristics, RBCT was independently associated with increased 30-day mortality (relative risk [RR] 3.1, 95% confidence interval [CI] 1.9-5.0), major morbidity (RR 1.4, 95% CI 1.2-1.8), length of stay (RR 1.2, 95% CI 1.1-1.2), infections (RR 1.4, 95% CI 1.1-1.6), cardiac complications (RR 1.8, 95% CI 1.0-3.2) and respiratory failure (RR 2.3, 95% CI 1.6-3.3). CONCLUSION Red blood cell transfusions are associated with worse postoperative short-term outcomes in patients with gastric cancer. Blood management strategies are needed to reduce the use of RBCT after gastrectomy for gastric cancer.
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Affiliation(s)
- Maryam Elmi
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
| | - Alyson Mahar
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
| | - Daniel Kagedan
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
| | - Calvin H.L. Law
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
| | - Paul J. Karanicolas
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
| | - Yulia Lin
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
| | - Jeannie Callum
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
| | - Natalie G. Coburn
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
| | - Julie Hallet
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Elmi, Kagedan, Law, Karanicolas, Coburn, Hallet); the Department of Public Health Sciences, Queen’s University, Kingston, Ont. (Mahar); the Division of General Surgery, Sunnybrook Health Sciences Centre – Odette Cancer Centre, Toronto, Ont. (Law, Karanicolas, Coburn, Hallet); the Division of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, Ont. (Lin, Callum); and the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ont. (Lin, Callum)
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Yohanathan L, Coburn NG, McLeod RS, Kagedan DJ, Pearsall E, Zih FSW, Callum J, Lin Y, McCluskey S, Hallet J. Understanding Perioperative Transfusion Practices in Gastrointestinal Surgery-a Practice Survey of General Surgeons. J Gastrointest Surg 2016; 20:1106-22. [PMID: 27025709 DOI: 10.1007/s11605-016-3111-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 02/15/2016] [Indexed: 01/31/2023]
Abstract
BACKGROUND Despite guidelines recommending restrictive red blood cell transfusion (RBCT) strategies, perioperative transfusion practices still vary significantly. To understand the underlying mechanisms that lead to gaps in practice, we sought to assess the attitudes of surgeons regarding the perioperative management of anemia and use of RBCT in patients having gastrointestinal surgery. METHODS We conducted a self-administered Web-based survey of general surgery staff and residents, in a network of eight academic institutions at the University of Toronto. We developed a questionnaire using a systematic approach of items generation and reduction. We tested face and content validity and test-retest reliability. We administered the survey via emails, with planned reminders. RESULTS Total response rate was 48.1 % (62/125). Half (51.0 %) of respondents stated that they were unlikely to conduct a preoperative anemia work-up. About 54.0 % reported ordering preoperative oral iron supplementation for anemia. Most respondents indicated using a 70 g/L hemoglobin trigger (92.0 %) for transfusion. Factors increasing thresholds above 70 g/L included cardiac comorbidity (58.0 %), acute cardiac disease (94.0 %), symptomatic anemia (68.0 %), and suspected bleeding (58.0 %). With those factors, the transfusion threshold often increased above 90 g/L. Respondents perceived RBCTs to increase the postoperative morbidity (62 %), but not to impact the mortality (48 %) and cancer recurrence (52 %). Institutional protocols (68.0 %), blood conservation clinics (44.0 %), and clinical practice guidelines (84.0 %) were believed to encourage restrictive use of RBCTs. CONCLUSION Self-reported perioperative transfusion practices for GI surgery are heterogeneous. Few respondents investigated preoperative anemia. Stated use of RBCT indications varied from recommendations in published guidelines for patients with symptomatic anemia. Establishing team consensus and implementing local blood management guidelines appear necessary to improve uptake of evidence-based recommendations.
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Affiliation(s)
| | - Natalie G Coburn
- Division of General Surgery, University of Toronto, Toronto, ON, Canada.,Division of General Surgery, Odette Cancer Centre-Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Robin S McLeod
- Division of General Surgery, University of Toronto, Toronto, ON, Canada.,Division of General Surgery, Mount Sinai Hospital, Toronto, ON, Canada
| | - Daniel J Kagedan
- Division of General Surgery, University of Toronto, Toronto, ON, Canada
| | - Emily Pearsall
- Division of General Surgery, Mount Sinai Hospital, Toronto, ON, Canada
| | - Francis S W Zih
- Division of General Surgery, University of Toronto, Toronto, ON, Canada
| | - Jeannie Callum
- Department of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Yulia Lin
- Department of Clinical Pathology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Stuart McCluskey
- Department of Anesthesia and Pain Management, University Health Network, Toronto, ON, Canada
| | - Julie Hallet
- Division of General Surgery, University of Toronto, Toronto, ON, Canada. .,Division of General Surgery, Odette Cancer Centre-Sunnybrook Health Sciences Centre, Toronto, ON, Canada. .,Odette Cancer Centre-Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2-063, Toronto, M4N3M5, ON, Canada.
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Cheng ESW, Hallet J, Hanna SS, Law CH, Coburn NG, Tarshis J, Lin Y, Karanicolas PJ. Is central venous pressure still relevant in the contemporary era of liver resection? J Surg Res 2016; 200:139-46. [DOI: 10.1016/j.jss.2015.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/29/2015] [Accepted: 08/06/2015] [Indexed: 01/24/2023]
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Pre-operative anaemia: prevalence, consequences and approaches to management. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2015; 13:370-9. [PMID: 26192787 DOI: 10.2450/2015.0014-15] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/24/2015] [Indexed: 01/28/2023]
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Perioperative blood transfusion as a poor prognostic factor after aggressive surgical resection for hilar cholangiocarcinoma. J Gastrointest Surg 2015; 19:1194-5. [PMID: 25895979 DOI: 10.1007/s11605-015-2823-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 04/07/2015] [Indexed: 01/31/2023]
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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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Aigner E, Feldman A, Datz C. Obesity as an emerging risk factor for iron deficiency. Nutrients 2014; 6:3587-600. [PMID: 25215659 PMCID: PMC4179177 DOI: 10.3390/nu6093587] [Citation(s) in RCA: 189] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 08/29/2014] [Accepted: 09/03/2014] [Indexed: 12/14/2022] Open
Abstract
Iron homeostasis is affected by obesity and obesity-related insulin resistance in a many-facetted fashion. On one hand, iron deficiency and anemia are frequent findings in subjects with progressed stages of obesity. This phenomenon has been well studied in obese adolescents, women and subjects undergoing bariatric surgery. On the other hand, hyperferritinemia with normal or mildly elevated transferrin saturation is observed in approximately one-third of patients with metabolic syndrome (MetS) or nonalcoholic fatty liver disease (NAFLD). This constellation has been named the “dysmetabolic iron overload syndrome (DIOS)”. Both elevated body iron stores and iron deficiency are detrimental to health and to the course of obesity-related conditions. Iron deficiency and anemia may impair mitochondrial and cellular energy homeostasis and further increase inactivity and fatigue of obese subjects. Obesity-associated inflammation is tightly linked to iron deficiency and involves impaired duodenal iron absorption associated with low expression of duodenal ferroportin (FPN) along with elevated hepcidin concentrations. This review summarizes the current understanding of the dysregulation of iron homeostasis in obesity.
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Affiliation(s)
- Elmar Aigner
- First Department of Medicine, Paracelsus Medical University, Müllner Hauptstrasse 48, 5020 Salzburg, Austria.
| | - Alexandra Feldman
- First Department of Medicine, Paracelsus Medical University, Müllner Hauptstrasse 48, 5020 Salzburg, Austria.
| | - Christian Datz
- Obesity Research Unit, Paracelsus Medical University, Müllner Hauptstrasse 48, 5020 Salzburg, Austria.
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