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Davids R, Robinson G, Van Tonder C, Robinson J, Ahmed N, Domingo A. Jehovah's Witness Needing Critical Care: A Narrative Review on the Expanding Arsenal. Crit Care Res Pract 2024; 2024:1913237. [PMID: 38813134 PMCID: PMC11136542 DOI: 10.1155/2024/1913237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 03/08/2024] [Accepted: 04/13/2024] [Indexed: 05/31/2024] Open
Abstract
Present day Jehovah's Witness (JW) religion accounts for 8.5 million followers. A tenant feature of the JW faith is religious objection to transfusions of blood and blood products. Interpatient variability, as it pertains to blood and blood products may occur; hence, a confidential interview will determine which products individual may consent to (Marsh and Bevan, 2002). This belief and practice place great restrictions on treating medical professionals in scenarios of life-threatening anaemia and active haemorrhage. The review to follow explores the physiological and pathophysiological consequences of severe anaemia. Non-blood transfusion practices are explored, many of which are potentially lifesaving. Particular attention is drawn to the evolving science involving artificial oxygen carriers and their use in emergency situations. A greater safety profile ensures its future use amongst religious objectors to be greatly beneficial. Intravenous iron supplementation has enjoyed a lively debate within the critical care community. A review of recent systematic and meta-analysis supports its use in the ICU; however, more investigation is needed into the complementary use of hepcidin.
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Affiliation(s)
- Ryan Davids
- Department of Anaesthesiology and Critical Care, Stellenbosch University, Stellenbosch, Western Cape, South Africa
| | - Gareth Robinson
- Department of Anaesthesiology and Critical Care, Stellenbosch University, Stellenbosch, Western Cape, South Africa
| | - Charmé Van Tonder
- Department of Anaesthesiology and Critical Care, Stellenbosch University, Stellenbosch, Western Cape, South Africa
| | - Jordan Robinson
- Department of Anaesthesiology and Critical Care, Stellenbosch University, Stellenbosch, Western Cape, South Africa
| | - Nadiyah Ahmed
- Department of Critical Care, University of Free State, Bloemfontein, South Africa
| | - Abdurragmaan Domingo
- Department of Anaesthesiology and Perioperative Medicine, University of Cape Town, Cape Town, Western Cape, South Africa
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2
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Chin K, Jiang H, Steinberg BE, Goldenberg NM, Desjardins JF, Kabir G, Liu E, Vanama R, Baker AJ, Deschamps A, Simpson JA, Maynes JT, Vinogradov SA, Connelly KA, Mazer CD, Hare GMT. Bilateral nephrectomy impairs cardiovascular function and cerebral perfusion in a rat model of acute hemodilutional anemia. J Appl Physiol (1985) 2024; 136:1245-1259. [PMID: 38385183 DOI: 10.1152/japplphysiol.00858.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/30/2024] [Accepted: 02/15/2024] [Indexed: 02/23/2024] Open
Abstract
Anemia and renal failure are independent risk factors for perioperative stroke, prompting us to assess the combined impact of acute hemodilutional anemia and bilateral nephrectomy (2Nx) on microvascular brain Po2 (PBro2) in a rat model. Changes in PBro2 (phosphorescence quenching) and cardiac output (CO, echocardiography) were measured in different groups of anesthetized Sprague-Dawley rats (1.5% isoflurane, n = 5-8/group) randomized to Sham 2Nx or 2Nx and subsequently exposed to acute hemodilutional anemia (50% estimated blood volume exchange with 6% hydroxyethyl starch) or time-based controls (no hemodilution). Outcomes were assessed by ANOVA with significance assigned at P < 0.05. At baseline, 2Nx rats demonstrated reduced CO (49.9 ± 9.4 vs. 66.3 ± 19.3 mL/min; P = 0.014) and PBro2 (21.1 ± 2.9 vs. 32.4 ± 3.1 mmHg; P < 0.001) relative to Sham 2Nx rats. Following hemodilution, 2Nx rats demonstrated a further decrease in PBro2 (15.0 ± 6.3 mmHg, P = 0.022). Hemodiluted 2Nx rats did not demonstrate a comparable increase in CO after hemodilution compared with Sham 2Nx (74.8 ± 22.4 vs. 108.9 ± 18.8 mL/min, P = 0.003) that likely contributed to the observed reduction in PBro2. This impaired CO response was associated with reduced fractional shortening (33 ± 9 vs. 51 ± 5%) and increased left ventricular end-systolic volume (156 ± 51 vs. 72 ± 15 µL, P < 0.001) suggestive of systolic dysfunction. By contrast, hemodiluted Sham 2Nx animals demonstrated a robust increase in CO and preserved PBro2. These data support the hypothesis that the kidney plays a central role in maintaining cerebral perfusion and initiating the adaptive increase in CO required to optimize PBro2 during acute anemia.NEW & NOTEWORTHY This study has demonstrated that bilateral nephrectomy acutely impaired cardiac output (CO) and microvascular brain Po2 (PBro2), at baseline. Following acute hemodilution, nephrectomy prevented the adaptive increase in CO associated with acute hemodilution leading to a further reduction in PBro2, accentuating the degree of cerebral tissue hypoxia. These data support a role for the kidney in maintaining PBro2 and initiating the increase in CO that optimized brain perfusion during acute anemia.
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Affiliation(s)
- Kyle Chin
- Department of Anesthesiology and Pain Medicine, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Helen Jiang
- Department of Anesthesiology and Pain Medicine, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Benjamin E Steinberg
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, The University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Neil M Goldenberg
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, The University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Jean-Francois Desjardins
- Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Golam Kabir
- Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Elaine Liu
- Department of Anesthesiology and Pain Medicine, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Ramesh Vanama
- Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, The University of Toronto, Toronto, Ontario, Canada
| | - Andrew J Baker
- Department of Anesthesiology and Pain Medicine, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Alain Deschamps
- Institut de Cardiologie de Montréal, Université de Montréal, Montreal Quebec, Canada
| | - Jeremy A Simpson
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
- IMPART investigator team Canada (https://impart.team/), Saint John, New Brunswick, Canada
| | - Jason T Maynes
- Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, The University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
- Program in Molecular Medicine, Hospital for Sick Children's Research Institute, Toronto, Ontario, Canada
| | - Sergei A Vinogradov
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - Kim A Connelly
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - C David Mazer
- Department of Anesthesiology and Pain Medicine, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Gregory M T Hare
- Department of Anesthesiology and Pain Medicine, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
- IMPART investigator team Canada (https://impart.team/), Saint John, New Brunswick, Canada
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3
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Okunade KS, Adejimi AA, Olumodeji AM, Olowe A, Oyedeji OA, Ademuyiwa IY, Adelabu H, Toks-Omage E, Okoro AC, Davies N, Adenekan MA, Ojo T, Rabiu KA, Oshodi YA, Ugwu AO, Olowoselu FO, Akinmola OO, Olamijulo JA, Oluwole AA. Prenatal anaemia and risk of postpartum haemorrhage: a cohort analysis of data from the Predict-PPH study. BMC Public Health 2024; 24:1028. [PMID: 38609913 PMCID: PMC11015669 DOI: 10.1186/s12889-024-18446-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND Most previous clinical studies investigating the connection between prenatal anaemia and postpartum haemorrhage (PPH) have reported conflicting results. OBJECTIVES We examined the association between maternal prenatal anaemia and the risk of PPH in a large cohort of healthy pregnant women in five health institutions in Lagos, Southwest Nigeria. METHODS This was a prospective cohort analysis of data from the Predict-PPH study that was conducted between January and June 2023. The study enrolled n = 1222 healthy pregnant women giving birth in five hospitals in Lagos, Nigeria. The study outcome, WHO-defined PPH, is postpartum blood loss of at least 500 milliliters. We used a multivariable logistic regression model with a backward stepwise conditional approach to examine the association between prenatal anaemia of increasing severity and PPH while adjusting for confounding factors. RESULTS Of the 1222 women recruited to the Predict-PPH study between January and June 2023, 1189 (97·3%) had complete outcome data. Up to 570 (46.6%) of the enrolled women had prenatal anaemia while 442 (37.2%) of those with complete follow-up data had WHO-defined PPH. After controlling for potential confounding factors, maternal prenatal anaemia was independently associated with PPH (adjusted odds ratio = 1.37, 95% confidence interval: 1.05-1.79). However, on the elimination of interaction effects of coexisting uterine fibroids and mode of delivery on this association, a sensitivity analysis yielded a lack of significant association between prenatal anaemia and PPH (adjusted odds ratio = 1.27, 95% confidence interval: 0.99-1.64). We also recorded no statistically significant difference in the median postpartum blood loss in women across the different categories of anaemia (P = 0.131). CONCLUSION Our study revealed that prenatal anaemia was not significantly associated with PPH. These findings challenge the previously held belief of a suspected link between maternal anaemia and PPH. This unique evidence contrary to most previous studies suggests that other factors beyond prenatal anaemia may contribute more significantly to the occurrence of PPH. This highlights the importance of comprehensive assessment and consideration of various maternal health factors in predicting and preventing this life-threatening obstetric complication.
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Affiliation(s)
- Kehinde S Okunade
- Department of Obstetrics & Gynaecology, College of Medicine, University of Lagos, PMB 12003, Lagos, Nigeria.
- Department of Obstetrics & Gynaecology, Lagos University Teaching Hospital, Lagos, Nigeria.
- Centre for Clinical Trials, Research and Implementation Science, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria.
| | - Adebola A Adejimi
- Department of Community Health & Primary Care, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Ayokunle M Olumodeji
- Department of Obstetrics & Gynaecology, Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria
| | - Atinuke Olowe
- Department of Nursing Science, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Olufemi A Oyedeji
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Iyabo Y Ademuyiwa
- Department of Nursing Science, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Hameed Adelabu
- Centre for Clinical Trials, Research and Implementation Science, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Eselobu Toks-Omage
- Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Austin C Okoro
- Department of Obstetrics & Gynaecology, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Nosimot Davies
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Muisi A Adenekan
- Department of Obstetrics & Gynaecology, Lagos Island Maternity Hospital, Lagos Island, Nigeria
| | - Temitope Ojo
- Department of Obstetrics & Gynaecology, Federal Medical Center, Ebute-Meta, Lagos, Nigeria
| | - Kabiru A Rabiu
- Department of Obstetrics & Gynaecology, Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria
| | - Yusuf A Oshodi
- Department of Obstetrics & Gynaecology, Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria
| | - Aloy O Ugwu
- Department of Obstetrics & Gynaecology, 68 Nigerian Army Reference Hospital, Yaba, Lagos, Nigeria
| | - Festus O Olowoselu
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Olukayode O Akinmola
- Department of Chemical Pathology, Lagos University Teaching Hospital, Surulere, Lagos, Nigeria
| | - Joseph A Olamijulo
- Department of Obstetrics & Gynaecology, College of Medicine, University of Lagos, PMB 12003, Lagos, Nigeria
- Department of Obstetrics & Gynaecology, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Ayodeji A Oluwole
- Department of Obstetrics & Gynaecology, College of Medicine, University of Lagos, PMB 12003, Lagos, Nigeria
- Department of Obstetrics & Gynaecology, Lagos University Teaching Hospital, Lagos, Nigeria
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De Santis GC, Costa L, Brunetta DM, Magnus MM, Benites BD, Rodrigues RDR, Alves SDOC, Rizzo SRCP, Rabello G, Langhi DM. Consensus of the Brazilian association of hematology, hemotherapy and cellular therapy on patient blood management: Anemia tolerance. Hematol Transfus Cell Ther 2024; 46 Suppl 1:S67-S71. [PMID: 38604928 PMCID: PMC11069063 DOI: 10.1016/j.htct.2024.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 02/18/2024] [Indexed: 04/13/2024] Open
Abstract
Anemia is a pathological condition in which the hemoglobin and red blood cell mass decrease; it is mainly defined by the concentration of hemoglobin in the blood. The World Health Organization guidelines establish specific values to define anemia in different population groups. Early detection of anemia can also be a valuable indicator of underlying medical conditions. Clinical studies have explored the relationship between perioperative anemia and morbidity, highlighting the need for more judicious therapeutic strategies, such as the use of Patient Blood Management, which aims to prevent and treat anemia in a personalized and effective way. Patient Blood Management emerges as a promising approach to dealing with anemia, recognizing that its correction through transfusion always carries risks and that personalized prevention and treatment can offer better outcomes for patients.
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Affiliation(s)
- Gil Cunha De Santis
- Hemocentro de Ribeirão Preto, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (HCFMRP-USP), Ribeirão Preto, SP, Brazil
| | - Lorena Costa
- Universidade de Pernambuco (UPE), Recife, PE, Brazil
| | - Denise Menezes Brunetta
- Faculdade de Medicina da Universidade Federal do Ceará (FM UFC), Fortaleza, CE, Brazil; Centro de Hematologia e Hemoterapia do Ceará (HEMOCE), Fortaleza, CE, Brazil; Complexo Hospitalar da Universidade Federal do Ceará (EBSERH UFC), Fortaleza, CE, Brazil
| | - Mariana Munari Magnus
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas (Hemocentro UNICAMP), Campinas, SP, Brazil
| | - Bruno Deltreggia Benites
- Centro de Hematologia e Hemoterapia da Universidade Estadual de Campinas (Hemocentro UNICAMP), Campinas, SP, Brazil
| | - Roseny Dos Reis Rodrigues
- Hospital Israelita Albert Einstein são Paulo, São Paulo, SP, Brazil; Faculdade de Medicina da Universidade de São Paulo (FM USP), São Paulo, SP, Brazil
| | | | | | - Guilherme Rabello
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (Incor - HCFMUSP), São Paulo, SP, Brazil.
| | - Dante Mario Langhi
- Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM UNIFESP), São Paulo, SP, Brazil
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Schwann TA, Engelman DT. Anemia and Sex Disparity in CABG Mortality: In Search of a Grand Unified Theory. J Am Coll Cardiol 2024; 83:929-931. [PMID: 38418007 DOI: 10.1016/j.jacc.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 03/01/2024]
Affiliation(s)
- Thomas A Schwann
- Department of Surgery, Oakwood Beaumont University Hospital, Corewell Health East, Royal Oak, Michigan, USA.
| | - Daniel T Engelman
- Department of Surgery, University of Massachusetts Chan School of Medicine, Springfield, Massachusetts, USA
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6
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Arynov A, Kaidarova D, Kabon B. Alternative blood transfusion triggers: a narrative review. BMC Anesthesiol 2024; 24:71. [PMID: 38395758 PMCID: PMC10885388 DOI: 10.1186/s12871-024-02447-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Anemia, characterized by low hemoglobin levels, is a global public health concern. Anemia is an independent factor worsening outcomes in various patient groups. Blood transfusion has been the traditional treatment for anemia; its triggers, primarily based on hemoglobin levels; however, hemoglobin level is not always an ideal trigger for blood transfusion. Additionally, blood transfusion worsens clinical outcomes in certain patient groups. This narrative review explores alternative triggers for red blood cell transfusion and their physiological basis. MAIN TEXT The review delves into the physiology of oxygen transport and highlights the limitations of using hemoglobin levels alone as transfusion trigger. The main aim of blood transfusion is to optimize oxygen delivery, necessitating an individualized approach based on clinical signs of anemia and the balance between oxygen delivery and consumption, reflected by the oxygen extraction rate. The narrative review covers different alternative triggers. It presents insights into their diagnostic value and clinical applications, emphasizing the need for personalized transfusion strategies. CONCLUSION Anemia and blood transfusion are significant factors affecting patient outcomes. While restrictive transfusion strategies are widely recommended, they may not account for the nuances of specific patient populations. The search for alternative transfusion triggers is essential to tailor transfusion therapy effectively, especially in patients with comorbidities or unique clinical profiles. Investigating alternative triggers not only enhances patient care by identifying more precise indicators but also minimizes transfusion-related risks, optimizes blood product utilization, and ensures availability when needed. Personalized transfusion strategies based on alternative triggers hold the potential to improve outcomes in various clinical scenarios, addressing anemia's complex challenges in healthcare. Further research and evidence are needed to refine these alternative triggers and guide their implementation in clinical practice.
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Affiliation(s)
- Ardak Arynov
- Department of Anesthesiology and Intensive Care, Kazakh Institute of Oncology and Radiology, Abay av. 91, Almaty, Kazakhstan.
| | - Dilyara Kaidarova
- Kazakh Institute of Oncology and Radiology, Abay av. 91, Almaty, Kazakhstan
| | - Barbara Kabon
- Department of Anaesthesia, General Intensive Medicine and Pain Medicine Medical, University of Vienna, Spitalgasse 23, 1090, Vienna, Austria
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Subramani K, Bander J, Chen S, Suárez-Fariñas M, Venkatesan T, Subrahmanian S, Varshney R, Kini A, Sharma S, Rifkin DB, Cho J, Coller BS, Ahamed J. Evidence That Anemia Accelerates AS Progression Via Shear-Induced TGF-β1 Activation: Heyde's Syndrome Comes Full Circle. JACC Basic Transl Sci 2024; 9:185-199. [PMID: 38510715 PMCID: PMC10950403 DOI: 10.1016/j.jacbts.2023.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 09/07/2023] [Accepted: 09/07/2023] [Indexed: 03/22/2024]
Abstract
The severity of aortic stenosis (AS) is associated with acquired von Willebrand syndrome (AVWS) and gastrointestinal bleeding, leading to anemia (Heyde's syndrome). We investigated how anemia is linked with AS and AVWS using the LA100 mouse model and patients with AS. Induction of anemia in LA100 mice increased transforming growth factor (TGF)-β1 activation, AVWS, and AS progression. Patients age >75 years with severe AS had higher plasma TGF-β1 levels and more severe anemia than AS patients age <75 years, and there was a correlation between TGF-β1 and anemia. These data are compatible with the hypothesis that the blood loss anemia of Heyde's syndrome contributes to AS progression via WSS-induced activation of platelet TGF-β1 and additional gastrointestinal bleeding via WSS-induced AVWS.
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Affiliation(s)
- Kumar Subramani
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Jeffrey Bander
- Icahn School of Medicine at Mount Sinai New York, New York, USA
| | - Sixia Chen
- University of Oklahoma Health Sciences Centers, Oklahoma City, Oklahoma, USA
| | | | - Thamizhiniyan Venkatesan
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Sandeep Subrahmanian
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Rohan Varshney
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Annapoorna Kini
- Icahn School of Medicine at Mount Sinai New York, New York, USA
| | - Samin Sharma
- Icahn School of Medicine at Mount Sinai New York, New York, USA
| | - Daniel B. Rifkin
- Departments of Cell Biology and Medicine, New York University, New York, New York, USA
| | - Jaehyung Cho
- Washington University School of Medicine, St. Louis, Missouri, USA
| | - Barry S. Coller
- Laboratory of Blood and Vascular Biology, Rockefeller University, New York, New York, USA
| | - Jasimuddin Ahamed
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
- University of Oklahoma Health Sciences Centers, Oklahoma City, Oklahoma, USA
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8
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Okunade KS, Ugwu AO, Adenekan MA, Olumodeji A, Oshodi YA, Ojo T, Adejimi AA, Ademuyiwa IY, Adaramoye V, Okoro AC, Olowe A, Akinmola OO, John-Olabode SO, Adelabu H, Henriquez R, Decroo T, Lynen L. Development of antepartum risk prediction model for postpartum hemorrhage in Lagos, Nigeria: A prospective cohort study (Predict-PPH study). Int J Gynaecol Obstet 2024. [PMID: 38234155 DOI: 10.1002/ijgo.15364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 12/26/2023] [Indexed: 01/19/2024]
Abstract
OBJECTIVES There is currently a limited ability to accurately identify women at risk of postpartum hemorrhage (PPH). We conducted the "Predict-PPH" study to develop and evaluate an antepartum prediction model and its derived risk-scoring system. METHODS This was a prospective cohort study of healthy pregnant women who registered and gave birth in five hospitals in Lagos, Nigeria, from January to June 2023. Maternal antepartum characteristics were compared between women with and without PPH. A predictive multivariable model was estimated using binary logistic regression with a backward stepwise approach eliminating variables when P was greater than 0.10. Statistically significant associations in the final model were reported when P was less than 0.05. RESULTS The prevalence of PPH in the enrolled cohort was 37.1%. Independent predictors of PPH such as maternal obesity (adjusted odds ratio [aOR] 3.25, 95% confidence interval [CI] 2.47-4.26), maternal anemia (aOR 1.32, 95% CI 1.02-1.72), previous history of cesarean delivery (aOR 4.24, 95% CI 3.13-5.73), and previous PPH (aOR 2.65, 95% CI 1.07-6.56) were incorporated to develop a risk-scoring system. The area under the receiver operating characteristic curve (AUROC) for the prediction model and risk scoring system was 0.72 (95% CI 0.69-0.75). CONCLUSION We recorded a relatively high prevalence of PPH. Our model performance was satisfactory in identifying women at risk of PPH. Therefore, the derived risk-scoring system could be a useful tool to screen and identify pregnant women at risk of PPH during their routine antenatal assessment for birth preparedness and complication readiness.
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Affiliation(s)
- Kehinde S Okunade
- Department of Obstetrics and Gynaecology, Lagos University Teaching Hospital, Surulere, Lagos, Nigeria
- Department of Obstetrics and Gynaecology, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
- Center for Clinical Trials, Research and Implementation Science, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Aloy O Ugwu
- Department of Obstetrics and Gynaecology, Nigerian Army Reference Hospital, Yaba, Lagos, Nigeria
| | - Muisi A Adenekan
- Department of Obstetrics and Gynaecology, Lagos Island Maternity Hospital, Lagos Island, Lagos, Nigeria
| | - Ayokunle Olumodeji
- Department of Obstetrics and Gynaecology, Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria
| | - Yusuf A Oshodi
- Department of Obstetrics and Gynaecology, Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria
| | - Temitope Ojo
- Department of Obstetrics and Gynaecology, Federal Medical Center, Ebute-Meta, Lagos, Nigeria
| | - Adebola A Adejimi
- Department of Community Health and Primary Care, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Iyabo Y Ademuyiwa
- Department of Nursing Science, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Victoria Adaramoye
- Department of Obstetrics and Gynaecology, Lagos University Teaching Hospital, Surulere, Lagos, Nigeria
| | - Austin C Okoro
- Department of Obstetrics and Gynaecology, Lagos University Teaching Hospital, Surulere, Lagos, Nigeria
| | - Atinuke Olowe
- Department of Nursing Science, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Olukayode O Akinmola
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Sarah O John-Olabode
- Department of Chemical Pathology, Lagos University Teaching Hospital, Surulere, Lagos, Nigeria
| | - Hameed Adelabu
- Center for Clinical Trials, Research and Implementation Science, College of Medicine, University of Lagos, Surulere, Lagos, Nigeria
| | - Rodrigo Henriquez
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerpen, Belgium
| | - Tom Decroo
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerpen, Belgium
| | - Lutgarde Lynen
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerpen, Belgium
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Liao R, Liu J, Zhang W, Zheng H, Zhu Z, Sun H, Yu Z, Jia H, Sun Y, Qin L, Yu W, Luo Z, Chen Y, Zhang K, Ma L, Yang H, Wu H, Liu L, Yuan F, Xu H, Zhang J, Zhang L, Liu D, Huang H. Individualized red-cell transfusion strategy for non-cardiac surgery in adults: a randomized controlled trial. Chin Med J (Engl) 2023; 136:2857-2866. [PMID: 37052133 PMCID: PMC10686592 DOI: 10.1097/cm9.0000000000002584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND Red-cell transfusion is critical for surgery during the peri-operative period; however, the transfusion threshold remains controversial mainly owing to the diversity among patients. The patient's medical status should be evaluated before making a transfusion decision. Herein, we developed an individualized transfusion strategy using the West-China-Liu's Score based on the physiology of oxygen delivery/consumption balance and designed an open-label, multicenter, randomized clinical trial to verify whether it reduced red cell requirement as compared with that associated with restrictive and liberal strategies safely and effectively, providing valid evidence for peri-operative transfusion. METHODS Patients aged >14 years undergoing elective non-cardiac surgery with estimated blood loss > 1000 mL or 20% blood volume and hemoglobin concentration <10 g/dL were randomly assigned to an individualized strategy, a restrictive strategy following China's guideline or a liberal strategy with a transfusion threshold of hemoglobin concentration <9.5 g/dL. We evaluated two primary outcomes: the proportion of patients who received red blood cells (superiority test) and a composite of in-hospital complications and all-cause mortality by day 30 (non-inferiority test). RESULTS We enrolled 1182 patients: 379, 419, and 384 received individualized, restrictive, and liberal strategies, respectively. Approximately 30.6% (116/379) of patients in the individualized strategy received a red-cell transfusion, less than 62.5% (262/419) in the restrictive strategy (absolute risk difference, 31.92%; 97.5% confidence interval [CI]: 24.42-39.42%; odds ratio, 3.78%; 97.5% CI: 2.70-5.30%; P <0.001), and 89.8% (345/384) in the liberal strategy (absolute risk difference, 59.24%; 97.5% CI: 52.91-65.57%; odds ratio, 20.06; 97.5% CI: 12.74-31.57; P <0.001). No statistically significant differences were found in the composite of in-hospital complications and mortality by day 30 among the three strategies. CONCLUSION The individualized red-cell transfusion strategy using the West-China-Liu's Score reduced red-cell transfusion without increasing in-hospital complications and mortality by day 30 when compared with restrictive and liberal strategies in elective non-cardiac surgeries. TRIAL REGISTRATION ClinicalTrials.gov, NCT01597232.
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Affiliation(s)
- Ren Liao
- Department of Anesthesiology, Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Jin Liu
- Department of Anesthesiology, Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Wei Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Hong Zheng
- Department of Anesthesiology, The First Affiliated Hospital of Xinjiang Medical University,Urumqi, Xinjiang 830054, China
| | - Zhaoqiong Zhu
- Department of Anesthesiology, The Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, China
| | - Haorui Sun
- Department of Anesthesiology, Beijing Friendship Hospital of Capital Medical University, Beijing 100069, China
| | - Zhangsheng Yu
- Department of Bioinformatics and Biostatistics, School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Huiqun Jia
- Department of Anesthesiology, The Fourth Hospital of Hebei Medical University, Shijiangzhuang, Hebei 050019, China
| | - Yanyuan Sun
- Department of Anesthesiology, Xijing Hospital of the Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Li Qin
- Department of Transfusion, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Wenli Yu
- Department of Anesthesiology, Tianjin First Center Hospital, Tianjin 300192, China
| | - Zhen Luo
- Department of Anesthesiology, Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Yanqing Chen
- Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, Fujian 350001, China
| | - Kexian Zhang
- Department of Anesthesiology, Sichuan Cancer Hospital & Institute, Chengdu, Sichuan 610041, China
| | - Lulu Ma
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing 100032, China
| | - Hui Yang
- Department of Anesthesiology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Hong Wu
- Department of Hepato-Bilio-Pancreatic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Limin Liu
- Department of Orthopedic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Fang Yuan
- Department of Anesthesiology, General Hospital Affiliated to Tianjin Medical University, Tianjin 300052, China
| | - Hongwei Xu
- Department of Anesthesiology, Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Jianwen Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Lei Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Xinjiang Medical University,Urumqi, Xinjiang 830054, China
| | - Dexing Liu
- Department of Anesthesiology, The Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, China
| | - Han Huang
- Department of Anesthesiology and Translational Neuroscience Center, West China Second University Hospital of Sichuan University, Chengdu, Sichuan 610041, China
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10
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Mladinov D, Isaza E, Gosling AF, Clark AL, Kukreja J, Brzezinski M. Perioperative Fluid Management. Anesthesiol Clin 2023; 41:613-629. [PMID: 37516498 DOI: 10.1016/j.anclin.2023.03.001] [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: 07/31/2023]
Abstract
The medical complexity of the geriatric patients has been steadily rising. Still, as outcomes of surgical procedures in the elderly are improving, centers are pushing boundaries. There is also a growing appreciation of the importance of perioperative fluid management on postoperative outcomes, especially in the elderly. Optimal fluid management in this cohort is challenging due to the combination of age-related physiological changes in organ function, increased comorbid burden, and larger fluid shifts during more complex surgical procedures. The current state-of-the-art approach to fluid management in the perioperative period is outlined.
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Affiliation(s)
- Domagoj Mladinov
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, 75 Francis Street, CWN-L1, Boston, MA 02115, USA
| | - Erin Isaza
- University of California, San Francisco, School of Medicine, 500 Parnassus Avenue, MU 405 W San Francisco, CA 94143, USA
| | - Andre F Gosling
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, 619 19th Street South, JT 845D, Birmingham, AL 35249, USA
| | - Adrienne L Clark
- Department of Anesthesia and Perioperative Care, University of California, 500 Parnassus Avenue, MU 405 W San Francisco, CA 94143, USA
| | - Jasleen Kukreja
- Division of Cardiothoracic Surgery, Department of Surgery, University of California, 500 Parnassus Avenue, MU 405 W San Francisco, CA 94143, USA
| | - Marek Brzezinski
- Department of Anesthesia and Perioperative Care, University of California, VA Medical Center-San Francisco, 4150 Clement Street, San Francisco CA 94121, USA.
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11
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Rondinelli MB, Weltert LP, Ruocco G, Ornelli M, Delle Femmine PF, De Rosa A, Pierelli L, Felici N. Patient Blood Management in Microsurgical Procedures for Reconstructive Surgery. Diagnostics (Basel) 2023; 13:2758. [PMID: 37685296 PMCID: PMC10486619 DOI: 10.3390/diagnostics13172758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/24/2023] [Accepted: 08/09/2023] [Indexed: 09/10/2023] Open
Abstract
Introduction: The main purpose of reconstructive surgery (RS) is to restore the integrity of soft tissues damaged by trauma, surgery, congenital deformity, burns, or infection. Microsurgical techniques consist of harvesting tissues that are separated from the vascular sources of the donor site and anastomosed to the vessels of the recipient site. In these procedures, there are some preoperative modifiable factors that have the potential to influence the outcome of the flap transfer and its anastomosis. The management of anemia, which is always present in the postoperative period and plays a decisive role in the implantation of the flap, covers significant importance, and is associated with clinical and laboratory settings of chronic inflammation. Methods: Chronic inflammatory anemia (ACD) is a constant condition in patients who have undergone RS and correlates with the perfusion of the free flap. The aim of this treatment protocol is to reduce the transfusion rate by maintaining both a good organ perfusion and correction of the patient's anemic state. From January 2017 to September 2019, we studied 16 patients (16 males, mean age 38 years) who underwent microsurgical procedures for RS. Their hemoglobin (Hb) levels, corpuscular indexes, transferrin saturation (TSAT) ferritin concentrations and creatinine clearance were measured the first day after surgery (T0), after the first week (T1), and after five weeks (T2). At T0, all the patients showed low hemoglobin levels (average 7.4 g/dL, STD 0.71 range 6.2-7.4 g dL-1), with an MCV of 72, MCH of 28, MCHC of 33, RDW of 16, serum iron of 35, ferritin of 28, Ret% of 1.36, TRF of 277, creatinine clearance of 119 and high ferritin levels (range 320-560 ng mL-1) with TSAT less than 20%. All the patients were assessed for their clinical status, medical history and comorbidities before the beginning of the therapy. Results: A collaboration between the two departments (Department of Transfusion Medicine and Department of Reconstructive Surgery) resulted in the application of a therapeutic protocol with erythropoietic stimulating agents (ESAs) (Binocrit 6000 UI/week) and intravenous iron every other day, starting the second day after surgery. Thirteen patients received ESAs and FCM (ferric carboxymaltose, 500-1000 mg per session), three patients received ESAs and iron gluconate (one vial every other day). No patients received blood transfusions. No side effects were observed, and most importantly, no limb or flap rejection occurred. Conclusions: Preliminary data from our protocol show an optimal therapeutic response, notwithstanding the very limited scientific literature and data available in this specific surgical field. The enrollment of further patients will allow us to validate this therapeutic protocol with statistically sound data.
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Affiliation(s)
| | - Luca Paolo Weltert
- Department of Medical Statistics, Saint Camillus International University of Health and Medical Sciences (UniCamillus), 00131 Rome, Italy
| | - Giovanni Ruocco
- Department of Reconstructive Surgery, San Camillo-Forlanini Hospital, 00152 Rome, Italy (N.F.)
| | - Matteo Ornelli
- Department of Reconstructive Surgery, San Camillo-Forlanini Hospital, 00152 Rome, Italy (N.F.)
| | | | - Alessandro De Rosa
- Department of Transfusion Medicine, San Camillo-Forlanini Hospital, 00152 Rome, Italy (L.P.)
| | - Luca Pierelli
- Department of Transfusion Medicine, San Camillo-Forlanini Hospital, 00152 Rome, Italy (L.P.)
- Department of Experimental Medicine, La Sapienza University, 00161 Rome, Italy
| | - Nicola Felici
- Department of Reconstructive Surgery, San Camillo-Forlanini Hospital, 00152 Rome, Italy (N.F.)
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12
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Mistry N, Hare GM, Shehata N, Kramer RS, Fawzy HF, Baker RA, Carmona P, Saczkowski R, Filipescu D, Alphonsus CS, Rochon A, Gregory AJ, Khanykin B, Leff JD, Mateo E, Karangelis D, Tellez JC, Saha T, Ko DT, Wijeysundera DN, Verma S, Mazer CD. Methemoglobin as a marker of acute anemic stress in cardiac surgery. iScience 2023; 26:107429. [PMID: 37575193 PMCID: PMC10415918 DOI: 10.1016/j.isci.2023.107429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/01/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023] Open
Abstract
Biological evidence supports plasma methemoglobin as a biomarker for anemia-induced tissue hypoxia. In this translational planned substudy of the multinational randomized controlled transfusion thresholds in cardiac surgery (TRICS-III) trial, which included adults undergoing cardiac surgery requiring cardiopulmonary bypass with a moderate-to-high risk of death, we investigated the relationship between perioperative hemoglobin concentration (Hb) and methemoglobin; and evaluated its association with postoperative outcomes. The primary endpoint was a composite of death, myocardial infarction, stroke, and severe acute kidney injury at 28 days. We observe weak non-linear associations between decreasing Hb and increasing methemoglobin, which were strongest in magnitude at the post-surgical time point. Increased levels of post-surgical methemoglobin were associated with a trend toward an elevated risk for stroke and exploratory neurological outcomes. Our generalizable study demonstrates post-surgical methemoglobin may be a marker of anemia-induced organ injury/dysfunction, and may have utility for guiding personalized approaches to anemia management. Clinicaltrials.gov registration NCT02042898.
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Affiliation(s)
- Nikhil Mistry
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- Department of Anesthesia, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada
| | - Gregory M.T. Hare
- Department of Anesthesia, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
- Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada
| | - Nadine Shehata
- Division of Hematology, Sinai Health System, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Robert S. Kramer
- Maine Medical Center Cardiovascular Institute, Portland, ME, USA
| | - Hosam F. Fawzy
- Department of Cardiothoracic Surgery, Faculty of Medicine, University of Tanta, Tanta, Egypt
| | - Robert A. Baker
- Cardiac Surgery Research and Perfusion, Flinders University and Flinders Medical Centre, Adelaide, SA, Australia
| | - Paula Carmona
- Cardiovascular-Anesthesia and Intensive Care. University Hospital La Fe, Valencia, Spain
| | - Richard Saczkowski
- Department of Cardiac Sciences, Perfusion Services, Kelowna General Hospital, Kelowna, BC, Canada
| | - Daniela Filipescu
- University of Medicine and Pharmacy Carol Davila, Emergency Institute for Cardiovascular Diseases “Prof. Dr. C.C. Iliescu”, Bucharest, Romania
| | - Christella S. Alphonsus
- Department of Anaesthesia and Perioperative Medicine, Faculty of Health Sciences, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
| | | | - Alexander J. Gregory
- Department of Anesthesiology, Perioperative and Pain Medicine and Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Boris Khanykin
- Cardiothoracic Anesthesiology Department, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jonathan D. Leff
- Montefiore-Einstein Center for Heart and Vascular Care, New York City, NY, USA
| | - Eva Mateo
- Hospital General Universitario de València, València, Spain
| | - Dimos Karangelis
- Department of Cardiothoracic Surgery, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Tarit Saha
- Department of Anesthesiology and Perioperative Medicine, Kingston General Hospital, Kingston, ON, Canada
| | - Dennis T. Ko
- Schulich Heart Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
- Institute of Health Policy Management, and Evaluation, University of Toronto, Toronto, ON, Canada
- ICES, Toronto, ON, Canada
| | - Duminda N. Wijeysundera
- Department of Anesthesia, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
- Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada
- Institute of Health Policy Management, and Evaluation, University of Toronto, Toronto, ON, Canada
- ICES, Toronto, ON, Canada
| | - Subodh Verma
- Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada
- Division of Cardiac Surgery, St. Michael’s Hospital, Department of Surgery, University of Toronto, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - C. David Mazer
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- Department of Anesthesia, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
- Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
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13
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Mansukhani R, Shakur-Still H, Chaudhri R, Bello F, Muganyizi P, Kayani A, Javaid K, Okunade O, Olayemi O, Kawala A, Temba R, Bashir A, Geer A, Islam A, Prowse D, Balogun E, Joseph F, Yasmin H, Khakwani M, Mobolaji-Ojibara M, Ghaffar N, Owa O, Jaleel R, Sultana R, Khan S, Magsi S, Abro S, Yasmin S, Munir S, Humayun S, Noor S, Luqman S, Ali S, Afridi U, Tarimo V, Roberts I. Maternal anaemia and the risk of postpartum haemorrhage: a cohort analysis of data from the WOMAN-2 trial. Lancet Glob Health 2023; 11:e1249-e1259. [PMID: 37390833 PMCID: PMC10353972 DOI: 10.1016/s2214-109x(23)00245-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 05/08/2023] [Accepted: 05/18/2023] [Indexed: 07/02/2023]
Abstract
BACKGROUND Worldwide, more than half a billion women of reproductive age are anaemic. Each year, about 70 000 women who give birth die from postpartum haemorrhage. Almost all deaths are in low-income or middle-income countries. We examined the association between anaemia and the risk of postpartum haemorrhage. METHODS We did a prospective cohort analysis of data from the World Maternal Antifibrinolytic-2 (WOMAN-2) trial. This trial enrols women with moderate or severe anaemia giving birth vaginally in hospitals in Pakistan, Nigeria, Tanzania, and Zambia. Moderate anaemia was defined as a haemoglobin concentration of 70-99 g/L and severe anaemia as less than 70 g/L. Hospitals in each country where anaemia in pregnancy is common were identified from a network established during previous obstetric trials. Women who were younger than 18 years without permission provided by a guardian, had a known tranexamic acid allergy, or developed postpartum haemorrhage before the umbilical cord was cut or clamped were excluded from the study. Prebirth haemoglobin, the exposure, was measured after hospital arrival and just before giving birth. Postpartum haemorrhage, the outcome, was defined in three ways: (1) clinical postpartum haemorrhage (estimated blood loss ≥500 mL or any blood loss sufficient to compromise haemodynamic stability); (2) WHO-defined postpartum haemorrhage (estimated blood loss of at least 500 mL); and (3) calculated postpartum haemorrhage (calculated estimated blood loss of ≥1000 mL). Calculated postpartum haemorrhage was estimated from the peripartum change in haemoglobin concentration and bodyweight. We used multivariable logistic regression to examine the association between haemoglobin and postpartum haemorrhage, adjusting for confounding factors. FINDINGS Of the 10 620 women recruited to the WOMAN-2 trial between Aug 24, 2019, and Nov 1, 2022, 10 561 (99·4%) had complete outcome data. 8751 (82·9%) of 10 561 women were recruited from hospitals in Pakistan, 837 (7·9%) from hospitals in Nigeria, 525 (5·0%) from hospitals in Tanzania, and 448 (4·2%) from hospitals in Zambia. The mean age was 27·1 years (SD 5·5) and mean prebirth haemoglobin was 80·7 g/L (11·8). Mean estimated blood loss was 301 mL (SD 183) for the 8791 (83·2%) women with moderate anaemia and 340 mL (288) for the 1770 (16·8%) women with severe anaemia. 742 (7·0%) women had clinical postpartum haemorrhage. The risk of clinical postpartum haemorrhage was 6·2% in women with moderate anaemia and 11·2% in women with severe anaemia. A 10 g/L reduction in prebirth haemoglobin increased the odds of clinical postpartum haemorrhage (adjusted odds ratio [aOR] 1·29 [95% CI 1·21-1·38]), WHO-defined postpartum haemorrhage (aOR 1·25 [1·16-1·36]), and calculated postpartum haemorrhage (aOR 1·23 [1·14-1·32]). 14 women died and 68 either died or had a near miss. Severe anaemia was associated with seven times higher odds of death or near miss (OR 7·25 [95% CI 4·45-11·80]) than was moderate anaemia. INTERPRETATION Anaemia is strongly associated with postpartum haemorrhage and the risk of death or near miss. Attention should be given to the prevention and treatment of anaemia in women of reproductive age. FUNDING The WOMAN-2 trial is funded by Wellcome and the Bill & Melinda Gates Foundation.
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14
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Gelebo KG, Neme D, Destaw B, Aweke Z, Kasa SM. The effect of preoperative anemia on perioperative outcomes among patients undergoing emergency surgery: A multicenter prospective cohort study. Heliyon 2023; 9:e17804. [PMID: 37483819 PMCID: PMC10359863 DOI: 10.1016/j.heliyon.2023.e17804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 06/16/2023] [Accepted: 06/28/2023] [Indexed: 07/25/2023] Open
Abstract
Introduction Preoperative anemia is a common finding among surgical patients. It is associated with an increased risk of perioperative morbidity and mortality. Outcomes among emergency surgical patients are not established. This study aimed to assess the effect of preoperative anemia on perioperative outcomes among patients undergoing emergency surgery in selected Southern Ethiopia governmental teaching hospitals, Southern Ethiopia, 2022. Method A multicenter prospective cohort study was conducted. Data were collected at selected hospitals, after obtaining ethical approval from the institutional review board. Descriptive statistics, cross-tabulation, and multivariable binary logistic regression analysis were performed. A P-value less than 0.05 were taken as statistically significant. Result A total of 200 patients who underwent emergency surgery were grouped into the anemia group (100 patients) while the rest were in the non-anemia group. There was no statistically significant difference between the groups regarding socio-demographic and intraoperative patient characteristics. Based on multivariate logistic regression, anemia group had a significant risk of perioperative transfusion requirement (Relative Risk (RR) = 4.030, p < 0.001), developing postoperative complications (RR = 1.868, p = 0.017), occurring in-hospital mortality (RR = 5.763, p = 0.045), prolong the length of hospital stay (RR = 4.028, p < 0.001), and requiring postoperative intensive care unit admission (RR = 6.332, p = 0.003) compared with non-anemia groups. Conclusion Preoperative anemia was associated with a higher rate of perioperative transfusion requirements, along with increased postoperative complication, increased in-hospital mortality, increased Intensive Critical Care Unit admission rate, and prolonged length of hospital stay. We recommend adequate preoperative assessment and correction of hemoglobin concentrations to normal values to improve surgical outcomes and reduce complications.
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Affiliation(s)
- Kanbiro Gedeno Gelebo
- Department of Anesthesia, College of Medicine and Health Science, Arba Minch University, Arba Minch, Ethiopia
| | - Derartu Neme
- Department of Anesthesia, College of Medicine and Health Science, Dilla University, Dilla, Ethiopia
| | - Belete Destaw
- Department of Anesthesia, College of Medicine and Health Science, Dilla University, Dilla, Ethiopia
| | - Zemedu Aweke
- Department of Anesthesia, College of Medicine and Health Science, Dilla University, Dilla, Ethiopia
| | - Simeneh Mola Kasa
- Department of Anesthesia, College of Medicine and Health Science, Dilla University, Dilla, Ethiopia
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15
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Köhler D, Voshaar T, Stais P, Haidl P, Dellweg D. Hypoxische, anämische und kardial bedingte Hypoxämie: Wann beginnt die Hypoxie im Gewebe? Dtsch Med Wochenschr 2023; 148:475-482. [PMID: 36990120 DOI: 10.1055/a-2007-5450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
ZusammenfassungBei einer Hypoxämie ist oft der Sauerstoffgehalt noch im unteren Normbereich, sodass keine
Hypoxie im Gewebe vorliegt. Wird die Hypoxie-Schwelle im Gewebe bei einer hypoxisch, anämisch
und auch kardial bedingten Hypoxämie erreicht, kommt es im Zellstoffwechsel, unabhängig von
der Genese, zu identischen Gegenregulationen. Im klinischen Alltag wird diese
pathophysiologische Tatsache mitunter ignoriert, obwohl je nach Hypoxämie-Ursache die
Beurteilung und die Therapie stark unterschiedlich sind. Während für die anämische Hypoxämie
restriktive und allgemein akzeptierte Regeln in den Transfusionsrichtlinien festgelegt sind,
wird bei einer hypoxischen Hypoxie früh die Indikation zu einer meist invasiven Beatmung
gestellt. Die klinische Beurteilung und Indikationsstellung fokussiert dabei auf die Parameter
Sauerstoffsättigung, Sauerstoffpartialdruck und Oxygenierungsindex. Während der
Corona-Pandemie sind Fehlinterpretationen der Pathophysiologie sichtbar geworden und haben
vermutlich zu überflüssigen Intubationen geführt. Für die Behandlung einer hypoxischen Hypoxie
mittels invasiver Beatmung aber gibt es keine Evidenz. Im vorliegenden Review wird auf die
Pathophysiologie der verschiedenen Hypoxieursachen unter besonderer Berücksichtigung der
Intubation und Beatmung auf der Intensivstation eingegangen.
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16
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Chin K, Joo H, Jiang H, Lin C, Savinova I, Joo S, Alli A, Sklar MC, Papa F, Simpson J, Baker AJ, Mazer CD, Darrah W, Hare GMT. Importance of assessing biomarkers and physiological parameters of anemia-induced tissue hypoxia in the perioperative period. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ELSEVIER) 2023; 73:186-197. [PMID: 36377057 PMCID: PMC10068554 DOI: 10.1016/j.bjane.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
Abstract
Anemia is associated with increased risk of Acute Kidney Injury (AKI), stroke and mortality in perioperative patients. We sought to understand the mechanism(s) by assessing the integrative physiological responses to anemia (kidney, brain), the degrees of anemia-induced tissue hypoxia, and associated biomarkers and physiological parameters. Experimental measurements demonstrate a linear relationship between blood Oxygen Content (CaO2) and renal microvascular PO2 (y = 0.30x + 6.9, r2 = 0.75), demonstrating that renal hypoxia is proportional to the degree of anemia. This defines the kidney as a potential oxygen sensor during anemia. Further evidence of renal oxygen sensing is demonstrated by proportional increase in serum Erythropoietin (EPO) during anemia (y = 93.806*10-0.02, r2 = 0.82). This data implicates systemic EPO levels as a biomarker of anemia-induced renal tissue hypoxia. By contrast, cerebral Oxygen Delivery (DO2) is defended by a profound proportional increase in Cerebral Blood Flow (CBF), minimizing tissue hypoxia in the brain, until more severe levels of anemia occur. We hypothesize that the kidney experiences profound early anemia-induced tissue hypoxia which contributes to adaptive mechanisms to preserve cerebral perfusion. At severe levels of anemia, renal hypoxia intensifies, and cerebral hypoxia occurs, possibly contributing to the mechanism(s) of AKI and stroke when adaptive mechanisms to preserve organ perfusion are overwhelmed. Clinical methods to detect renal tissue hypoxia (an early warning signal) and cerebral hypoxia (a later consequence of severe anemia) may inform clinical practice and support the assessment of clinical biomarkers (i.e., EPO) and physiological parameters (i.e., urinary PO2) of anemia-induced tissue hypoxia. This information may direct targeted treatment strategies to prevent adverse outcomes associated with anemia.
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Affiliation(s)
- Kyle Chin
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada; University of Toronto, Department of Physiology, Toronto, Canada
| | - Hannah Joo
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada
| | - Helen Jiang
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada
| | - Chloe Lin
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada
| | - Iryna Savinova
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Canada
| | - Sarah Joo
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada
| | - Ahmad Alli
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada
| | - Michael C Sklar
- St. Michael's Hospital, Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, Toronto, Canada; University of Toronto, Temerty Faculty of Medicine, Interdepartmental Division of Critical Care Medicine, Toronto, Canada; University of Toronto, St. Michael's Hospital, Department of Critical Care, Toronto, Canada
| | - Fabio Papa
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada
| | - Jeremy Simpson
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Canada
| | - Andrew J Baker
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada; St. Michael's Hospital, Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, Toronto, Canada; University of Toronto, Temerty Faculty of Medicine, Interdepartmental Division of Critical Care Medicine, Toronto, Canada; University of Toronto, St. Michael's Hospital, Department of Critical Care, Toronto, Canada
| | - C David Mazer
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada; University of Toronto, Department of Physiology, Toronto, Canada; St. Michael's Hospital, Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, Toronto, Canada; University of Toronto, Temerty Faculty of Medicine, Interdepartmental Division of Critical Care Medicine, Toronto, Canada; University of Toronto, St. Michael's Hospital, Department of Critical Care, Toronto, Canada
| | - William Darrah
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada
| | - Gregory M T Hare
- University of Toronto, Temerty Faculty of Medicine, St. Michael's Hospital, Department of Anesthesia and Pain Medicine, Toronto, Canada; University of Toronto, Department of Physiology, Toronto, Canada; St. Michael's Hospital, Keenan Research Centre for Biomedical Science in the Li Ka Shing Knowledge Institute, Toronto, Canada; St. Michael's Hospital Center of Excellence for Patient Blood Management, 30 Bond Street, Toronto, Canada.
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17
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Kiyatkin ME, Mladinov D, Jarzebowski ML, Warner MA. Patient Blood Management, Anemia, and Transfusion Optimization Across Surgical Specialties. Anesthesiol Clin 2023; 41:161-174. [PMID: 36871997 PMCID: PMC10066799 DOI: 10.1016/j.anclin.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Patient blood management (PBM) is a systematic, evidence-based approach to improve patient outcomes by managing and preserving a patient's own blood and minimizing allogenic transfusion need and risk. According to the PBM approach, the goals of perioperative anemia management include early diagnosis, targeted treatment, blood conservation, restrictive transfusion except in cases of acute and massive hemorrhage, and ongoing quality assurance and research efforts to advance overall blood health.
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Affiliation(s)
- Michael E Kiyatkin
- Department of Anesthesiology, Albert Einstein College of Medicine, Montefiore Medical Center, 111 East 210th Street, Bronx, NY 10467, USA.
| | - Domagoj Mladinov
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Mary L Jarzebowski
- Department of Anesthesiology, University of Michigan, 1540 East Hospital Drive, Ann Arbor, MI 48109, USA
| | - Matthew A Warner
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, 200 1st Street, Rochester, MN 55905, USA
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18
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Schwann TA, Vekstein AM, Engoren M, Grau-Sepulveda M, O'Brien S, Engelman D, Lobdell KW, Gaudino MF, Salenger R, Habib RH. Perioperative Anemia and Transfusions and Late Mortality in Coronary Artery Bypass Patients. Ann Thorac Surg 2023; 115:759-769. [PMID: 36574523 DOI: 10.1016/j.athoracsur.2022.11.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 08/14/2022] [Accepted: 11/08/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Perioperative anemia and transfusions are associated with adverse operative outcomes after coronary artery bypass graft surgery (CABG). Their individual association with long-term outcomes is unclear. METHODS Patients aged 65 years and older who had undergone CABG and were in The Society of Thoracic Surgeons (STS) Adult Cardiac Surgery Database (n = 504,596) from 2011 to 2018 were linked to Centers for Medicare and Medicaid Service data to assess long-term survival. The association of intraoperative anemia defined by intraoperative nadir hematocrit (nHct) and red blood cell (RBC) transfusions, and their interactions, on long-term mortality were assessed with Kaplan-Meier estimates and multivariable Cox regression. Restricted cubic splines were used to explore the association between nHct as a continuous variable and long-term mortality. RESULTS 258,398 on-pump CABG STS Adult Cardiac Surgery Database patients surviving the perioperative period were linked to Centers for Medicare and Medicaid Service claims files. Per World Health Organization criteria, 41% had preoperative anemia. Mean intraoperative nHct was 24%; RBC transfusion rate was 43.7%. Univariable analysis associated both RBC transfusion and lower nHct with worse survival. Lower nHct was only marginally associated with risk-adjusted mortality: adjusted hazard ratio (AHR) 1.04 (95% CI, 1.01-1.06) and 1.07 (95% CI, 1.00-1.14) at nHct 20% and at nHct 14%, respectively. RBC transfusion was associated with significantly higher adjusted mortality irrespective of timing of transfusion: AHR intraoperative 1.21 (95% CI, 1.18-1.27); AHR postoperative 1.26 (95% CI, 1.22-1.30); AHR both 1.46 (95% CI, 1.40-1.52) and across all levels of nHct. RBC transfusion was not associated with improved survival at any level of nHct. CONCLUSIONS Among Medicare CABG patients, RBC transfusions were associated with increased risk-adjusted late mortality across all levels of nHct whereas intraoperative anemia was only marginally so. Tolerance of lower intraoperative nHct than currently accepted may be preferable to transfusions.
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Affiliation(s)
- Thomas A Schwann
- Department of Surgery, University of Massachusetts-Baystate, Springfield, Massachusetts.
| | - Andrew M Vekstein
- Department of Surgery, Duke University, Durham, North Carolina; Duke Clinical Research Institute, Durham, North Carolina
| | - Milo Engoren
- Department of Anesthesiology, University of Michigan, Ann Arbor, Michigan
| | | | - Sean O'Brien
- Duke Clinical Research Institute, Durham, North Carolina; Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina
| | - Daniel Engelman
- Department of Surgery, University of Massachusetts-Baystate, Springfield, Massachusetts
| | - Kevin W Lobdell
- Department of Surgery, Atrium Health, Charlotte, North Carolina
| | - Mario F Gaudino
- Department of Surgery, Weill-Cornell Health, New York, New York
| | - Rawn Salenger
- Department of Surgery, University of Maryland, Baltimore, Maryland
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19
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Roberts I, Brenner A, Shakur-Still H. Tranexamic acid for bleeding: Much more than a treatment for postpartum hemorrhage. Am J Obstet Gynecol MFM 2023; 5:100722. [PMID: 35988879 DOI: 10.1016/j.ajogmf.2022.100722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/01/2022] [Accepted: 08/13/2022] [Indexed: 10/15/2022]
Abstract
The evidence that early tranexamic acid treatment reduces postpartum hemorrhage deaths has major implications for obstetrical care worldwide. Tranexamic acid may also have a role in the prevention of postpartum hemorrhage, but more evidence is needed on the balance of risks and benefits. Most deaths from postpartum hemorrhage are in low- and middle-income countries where tranexamic acid treatment is often unavailable. Several maternal health organizations including the Reproductive Health Supplies Coalition, Clinton Health Access Initiative, Concept Foundation, International Federation of Gynecology and Obstetrics, and Unitaid are working to increase access. However, a wider view of the evidence on tranexamic acid and bleeding shows that it can improve maternal health in many other ways. An appreciation of these other health benefits could facilitate efforts to increase access. By reducing heavy menstrual bleeding, tranexamic acid could reduce the prevalence of maternal anemia, a common and important risk factor for postpartum hemorrhage and other maternal and neonatal outcomes. Further clinical trials of tranexamic acid for the treatment of menstrual bleeding are needed. By reducing surgical bleeding and the need for blood transfusion, tranexamic acid would increase the availability of blood in countries where there is blood shortage so that more blood is available for use in life-threatening bleeding including postpartum hemorrhage. In countries where there is no blood shortage, tranexamic acid use would reduce healthcare costs and prevent transfusion-transmitted infections and reactions. Trauma affects women and men, and violence is a leading cause of death in pregnancy. Increased use of tranexamic acid in trauma would significantly reduce trauma deaths. Efforts to increase the availability and use of tranexamic acid for obstetrical hemorrhage should acknowledge its other health benefits and aim to increase its use across health services more generally.
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Affiliation(s)
- Ian Roberts
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom.
| | - Amy Brenner
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Haleema Shakur-Still
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
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20
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Ng PY, Chan HCV, Ip A, Ling L, Chan KM, Leung KHA, Chan KCK, So D, Shum HP, Ngai CW, Chan WM, Sin WC. Restrictive and liberal transfusion strategies in extracorporeal membrane oxygenation: A retrospective observational study. Transfusion 2023; 63:294-304. [PMID: 36511445 DOI: 10.1111/trf.17221] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/16/2022] [Accepted: 11/25/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND To compare the outcomes of patients requiring extracorporeal membrane oxygenation (ECMO) support who had a restrictive transfusion strategy with those who had a liberal strategy. STUDY DESIGN AND METHODS We retrospectively reviewed all adult patients from 2010 to 2019 who received a minimum of one packed red blood cell (pRBC) during ECMO. Hemoglobin values before each transfusion were retrieved. Restrictive transfusion strategy was defined as a transfusion threshold ≤8.5 g/dl in all transfusion episodes for a single patient, while liberal transfusion strategy was defined as a transfusion threshold >8.5 g/dl in any transfusion episode. RESULTS The analysis included 763 patients, with 138 (18.1%) patients in the restrictive and 625 (81.9%) in the liberal transfusion strategy group. The median hemoglobin level, taking into account all measured hemoglobin values, during ECMO support was 8.3 and 9.9 g/dl, and the average units of pRBC received per day were 0.7 (0.3-1.8) and 1.2 (0.6-2.3), respectively. There were no significant differences in intensive care unit (ICU) mortality (adjusted odds ratio (OR), 0.86; 95% CI 0.56-1.30; p = .47), hospital mortality (adjusted OR, 0.79; 95% CI 0.52-1.21; p = .28), and 90-day mortality (adjusted OR, 0.84; 95% CI 0.55-1.28; p = .42) between the two groups. Among subgroup analyses, a restrictive transfusion strategy was associated with decreased risk of ICU mortality in patients on veno-venous ECMO (adjusted OR, 0.36; 95% CI 0.17-0.73; p = .005). There was no heterogeneity on outcomes across patients stratified by age, APACHE IV score, or need for large volume transfusion. DISCUSSION Our data suggested it may be safe to adopt a restrictive red cell transfusion threshold of 8.5 g/dl in patients on ECMO, and highlighted the need for prospective trials in this heavily-transfused population.
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Affiliation(s)
- Pauline Yeung Ng
- Department of Medicine, The University of Hong Kong, Hong Kong, China.,Department of Adult Intensive Care, Queen Mary Hospital, Hong Kong, China
| | | | - April Ip
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Lowell Ling
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Kai Man Chan
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
| | | | | | - Dominic So
- Department of Intensive Care, Princess Margaret Hospital, Hong Kong, China
| | - Hoi Ping Shum
- Department of Intensive Care, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | - Chun Wai Ngai
- Department of Adult Intensive Care, Queen Mary Hospital, Hong Kong, China
| | - Wai Ming Chan
- Department of Adult Intensive Care, Queen Mary Hospital, Hong Kong, China
| | - Wai Ching Sin
- Department of Adult Intensive Care, Queen Mary Hospital, Hong Kong, China.,Department of Anaesthesiology, The University of Hong Kong, Hong Kong, China
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21
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O'Brien KL, Shainker SA, Callum J, Chmait RH, Ladhani NNN, Lin Y, Roseff SD, Shamshirsaz AA, Uhl L, Haspel RL. Primum, non nocere: Whole blood, prehospital transfusion and anti-D hemolytic disease of the fetus and newborn. Transfusion 2023; 63:249-256. [PMID: 36449373 DOI: 10.1111/trf.17209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/13/2022] [Indexed: 12/03/2022]
Affiliation(s)
- Kerry L O'Brien
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Scott A Shainker
- Division of Maternal Fetal Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jeannie Callum
- Department of Pathology and Molecular Medicine, Kingston Health Sciences Centre and Queen's University, Kingston, Ontario, Canada
| | - Ramen H Chmait
- Department of Obstetrics and Gynecology, Los Angeles Fetal Surgery, University of Southern California, Los Angeles, California, USA
| | - Noor Niyar N Ladhani
- Division of Maternal Fetal Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Yulia Lin
- Department of Laboratory Medicine and Pathobiology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Susan D Roseff
- Department of Pathology, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Alireza A Shamshirsaz
- Division of Maternal Fetal Medicine, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Lynne Uhl
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Richard L Haspel
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
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22
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Tomić Mahečić T, Brooks R, Noitz M, Sarmiento I, Baronica R, Meier J. The Limits of Acute Anemia. J Clin Med 2022; 11:jcm11185279. [PMID: 36142930 PMCID: PMC9505011 DOI: 10.3390/jcm11185279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/04/2022] [Accepted: 09/05/2022] [Indexed: 01/28/2023] Open
Abstract
For many years, physicians’ approach to the transfusion of allogeneic red blood cells (RBC) was not individualized. It was accepted that a hemoglobin concentration (Hb) of less than 10 g/dL was a general transfusion threshold and the majority of patients were transfused immediately. In recent years, there has been increasing evidence that even significantly lower hemoglobin concentrations can be survived in the short term without sequelae. This somehow contradicts the observation that moderate or mild anemia is associated with relevant long-term morbidity and mortality. To resolve this apparent contradiction, it must be recognized that we have to avoid acute anemia or treat it by alternative methods. The aim of this article is to describe the physiological limits of acute anemia, match these considerations with clinical realities, and then present “patient blood management” (PBM) as the therapeutic concept that can prevent both anemia and unnecessary transfusion of RBC concentrates in a clinical context, especially in Intensive Care Units (ICU). This treatment concept may prove to be the key to high-quality patient care in the ICU setting in the future.
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Affiliation(s)
- Tina Tomić Mahečić
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Center Zagreb—“Rebro”, 10000 Zagreb, Croatia
| | - Roxane Brooks
- Department of Anesthesiology and Critical Care Medicine, Kepler University Hospital GmbH, Johannes Kepler University, 4040 Linz, Austria
| | - Matthias Noitz
- Department of Anesthesiology and Critical Care Medicine, Kepler University Hospital GmbH, Johannes Kepler University, 4040 Linz, Austria
| | - Ignacio Sarmiento
- Department of Anesthesiology, Clinica Santa Maria, Santiago 7520378, Chile
| | - Robert Baronica
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Center Zagreb—“Rebro”, 10000 Zagreb, Croatia
| | - Jens Meier
- Department of Anesthesiology and Critical Care Medicine, Kepler University Hospital GmbH, Johannes Kepler University, 4040 Linz, Austria
- Correspondence:
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23
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Vlaar APJ. Blood transfusion: the search for the sweet spot. Intensive Care Med 2022; 48:1218-1221. [PMID: 35794273 DOI: 10.1007/s00134-022-06799-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2022] [Indexed: 12/01/2022]
Affiliation(s)
- Alexander P J Vlaar
- Department of Intensive Care Medicine, Amsterdam UMC, Room, C3-430, Meibergdreef 9, location AMC, 1105 AZ, Amsterdam, The Netherlands. .,Laboratory of Experimental Intensive Care and Anesthesiology (L.E.I.C.A.), Amsterdam UMC, Location AMC, Amsterdam, The Netherlands.
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24
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Koons NJ, Moses CD, Thompson P, Strandenes G, Convertino VA. Identifying critical DO 2 with compensatory reserve during simulated hemorrhage in humans. Transfusion 2022; 62 Suppl 1:S122-S129. [PMID: 35733031 DOI: 10.1111/trf.16958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/09/2022] [Accepted: 03/18/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND Based on previous experiments in nonhuman primates, we hypothesized that DO2 crit in humans is 5-6 ml O2 ·kg-1 min-1 . STUDY DESIGN AND METHODS We measured the compensatory reserve (CRM) and calculated oxygen delivery (DO2 ) in 166 healthy, normotensive, nonsmoking subjects (97 males, 69 females) during progressive central hypovolemia induced by lower body negative pressure as a model of ongoing hemorrhage. Subjects were classified as having either high tolerance (HT; N = 111) or low tolerance (LT; N = 55) to central hypovolemia. RESULTS HT and LT groups were matched for age, weight, BMI, and vital signs, DO2 and CRM at baseline. The CRM-DO2 relationship was best fitted to a logarithmic model in HT subjects (amalgamated R2 = 0.971) and a second-order polynomial model in the LT group (amalgamated R2 = 0.991). Average DO2 crit for the entire subject cohort was estimated at 5.3 ml O2 ·kg-1 min-1 , but was ~14% lower in HT compared with LT subjects. The reduction in DO2 from 40% CRM to 20% CRM was 2-fold greater in the LT compared with the HT group. CONCLUSIONS Average DO2 crit in humans is 5.3 ml O2 ·kg-1 min-1 , but is ~14% lower in HT compared with LT subjects. The CRM-DO2 relationship is curvilinear in humans, and different when comparing HT and LT individuals. The threshold for an emergent monitoring signal should be recalibrated from 30% to 40% CRM given that the decline in DO2 from 40% CRM to 20% CRM for LT subjects is located on the steepest part of the CRM-DO2 relationship.
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Affiliation(s)
- Natalie J Koons
- Battlefield Health & Trauma Center for Human Integrative Physiology, U. S. Army Institute of Surgical Research, San Antonio, Texas, USA
| | - Catherine D Moses
- Battlefield Health & Trauma Center for Human Integrative Physiology, U. S. Army Institute of Surgical Research, San Antonio, Texas, USA
| | | | - Geir Strandenes
- Norwegian Armed Forces, Haukeland University Hospital, Bergen, Norway
| | - Victor A Convertino
- Battlefield Health & Trauma Center for Human Integrative Physiology, U. S. Army Institute of Surgical Research, San Antonio, Texas, USA
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25
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Napolitano JD. The Physical Examination to Assess for Anemia and Hypovolemia. Med Clin North Am 2022; 106:509-518. [PMID: 35491070 DOI: 10.1016/j.mcna.2021.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hypovolemia develops with the loss of extracellular fluid volume or blood. Rapidly identifying hypovolemia can be lifesaving. Indicators of hypovolemia on examination include supine or postural hypotension, increase in heart rate by 30 beats per minute or severe dizziness with standing, and a decrease in central venous pressure detected on visual inspection of the jugular venous pressure or ultrasound assessment of the inferior vena cava or internal jugular veins. Other findings with utility include a dry axilla and dry oral mucosa. With chronic anemia, hemodynamic changes detectable on examination may be minimal, as the body compensates by retaining extracellular volume.
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Affiliation(s)
- Jason D Napolitano
- David Geffen School of Medicine at UCLA, 757 Westwood Plaza Suite 7501, Los Angeles, CA 90095, USA.
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26
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Sato C, Kamijo YI, Sakurai Y, Araki S, Sakata Y, Ishigame A, Murai K, Yoshioka I, Tajima F. Three-week exercise and protein intake immediately after exercise increases the 6-min walking distance with simultaneously improved plasma volume in patients with chronic cerebrovascular disease: a preliminary prospective study. BMC Sports Sci Med Rehabil 2022; 14:38. [PMID: 35292094 PMCID: PMC8922777 DOI: 10.1186/s13102-022-00429-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 03/02/2022] [Indexed: 05/31/2023]
Abstract
Background Blood volume (BV) is a critical factor for physical endurance in chronic stroke patients, while hypervolemia can worsen hypertension in these patients. This prospective study assessed whether rehabilitation combined with protein supplementation immediately after each exercise for 3 weeks would improve plasma volume (PV) and BV as well as physical endurance without worsening hypertension. Methods Ambulatory patients with chronic cerebrovascular disease who received a 3-week rehabilitation program with high protein jelly (intervention group [PG]; n = 8; 10-g protein) or protein-free jelly (control group [CG]; n = 8) consumed within 30 min after each exercise. PV and BV were assessed while measuring the 6-min walking distance (6MWD), peak oxygen consumption (VO2peak), strength of knee extension, and resting blood pressure before and after the intervention. Two-way ANOVA was used to determine whether there was an interaction of time × group. The difference between before and after intervention or between the groups by post-hoc test (Tukey’s test) at the level of P < 0.05. Results The 6MWD increased only in the PG (P = 0.001; an interaction of Group and Time, P = 0.037). PV and BV increased only in the PG (P < 0.05). VO2peak and strength of knee extension in the paralysed limb increased in both groups (P < 0.05). The resting blood pressure did not worsen after the intervention. Conclusions In chronic post-stroke patients, 3-week rehabilitation combined with protein intake immediately after exercise increased 6MWD simultaneously with increased PV and BV, but it did not increase resting blood pressure. The present regimen is acceptable and effective for ambulatory patients with chronic cerebrovascular disease. Name of the registry Examining effects of protein supplementation on functional improvement during rehabilitation intervention in chronic stroke patients Trial registration number UMIN000028009; date of registration: 30/06/2017. This study was registered prospectively. Supplementary Information The online version contains supplementary material available at 10.1186/s13102-022-00429-x.
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Affiliation(s)
- Chika Sato
- Nachi-Katsuura Research Centre of Sports Medicine and Balneology, Nachi-Katsuura Balneologic Town Hospital, 1185-4 Tenma-Nachi-katuurachou, Higashimuro gun, 649-5331, Japan.,Department of Rehabilitation Medicine, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8509, Japan
| | - Yoshi-Ichiro Kamijo
- Department of Rehabilitation Medicine, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8509, Japan. .,Institute of Sports Science and Environmental Physiology, Medical Centre for Health Promotion and Sports Science, Wakayama Medical University, 2-1 Honmachi, Wakayama, 640-8033, Japan. .,Department of Rehabilitation Medicine, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minami-Koshigaya, Koshigaya, Saitama, 343-8555, Japan.
| | - Yuta Sakurai
- Nachi-Katsuura Research Centre of Sports Medicine and Balneology, Nachi-Katsuura Balneologic Town Hospital, 1185-4 Tenma-Nachi-katuurachou, Higashimuro gun, 649-5331, Japan
| | - Shohei Araki
- Nachi-Katsuura Research Centre of Sports Medicine and Balneology, Nachi-Katsuura Balneologic Town Hospital, 1185-4 Tenma-Nachi-katuurachou, Higashimuro gun, 649-5331, Japan
| | - Yuki Sakata
- Nachi-Katsuura Research Centre of Sports Medicine and Balneology, Nachi-Katsuura Balneologic Town Hospital, 1185-4 Tenma-Nachi-katuurachou, Higashimuro gun, 649-5331, Japan.,Department of Rehabilitation Medicine, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8509, Japan
| | - Ayana Ishigame
- Nachi-Katsuura Research Centre of Sports Medicine and Balneology, Nachi-Katsuura Balneologic Town Hospital, 1185-4 Tenma-Nachi-katuurachou, Higashimuro gun, 649-5331, Japan
| | - Kota Murai
- Nachi-Katsuura Research Centre of Sports Medicine and Balneology, Nachi-Katsuura Balneologic Town Hospital, 1185-4 Tenma-Nachi-katuurachou, Higashimuro gun, 649-5331, Japan.,Department of Rehabilitation Medicine, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8509, Japan
| | - Izumi Yoshioka
- Nachi-Katsuura Research Centre of Sports Medicine and Balneology, Nachi-Katsuura Balneologic Town Hospital, 1185-4 Tenma-Nachi-katuurachou, Higashimuro gun, 649-5331, Japan
| | - Fumihiro Tajima
- Nachi-Katsuura Research Centre of Sports Medicine and Balneology, Nachi-Katsuura Balneologic Town Hospital, 1185-4 Tenma-Nachi-katuurachou, Higashimuro gun, 649-5331, Japan.,Department of Rehabilitation Medicine, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8509, Japan.,Institute of Sports Science and Environmental Physiology, Medical Centre for Health Promotion and Sports Science, Wakayama Medical University, 2-1 Honmachi, Wakayama, 640-8033, Japan
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27
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Mladinov D, Padilla LA, Leahy B, Norman JB, Enslin J, Camp RS, Eudailey KW, Tanaka K, Davies JE. Hemodilution in high-risk cardiac surgery: Laboratory values, physiological parameters, and outcomes. Transfusion 2022; 62:826-837. [PMID: 35244229 DOI: 10.1111/trf.16844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 01/20/2022] [Accepted: 02/15/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Acute normovolemic hemodilution (ANH) is a blood conservation strategy in cardiac surgery, predominantly used in coronary artery bypass graft (CABG) and/or valve procedures. Although higher complexity cardiac procedures may benefit from ANH, concerns for hemodynamic instability, and organ injury during hemodilution hinder its wider acceptance. Laboratory and physiological parameters during hemodilution in complex cardiac surgeries have not been described. STUDY DESIGN AND METHODS This observational cohort (2019-2021) study included 169 patients who underwent thoracic aortic repair, multiple valve procedure, concomitant CABG with the aforementioned procedure, and/or redo sternotomies. Patients who received allogeneic blood were excluded. Statistical comparisons were performed between ANH (N = 66) and non-ANH controls (N = 103). ANH consisted of removal of blood at the beginning of surgery and its return after cardiopulmonary bypass. RESULTS Intraoperatively, the ANH group received more albumin (p = .04) and vasopressor medications (p = .01), while urine output was no different between ANH and controls. Bilateral cerebral oximetry (rSO2 ) values were similar before and after hemodilution. During bypass, rSO2 were discretely lower in the ANH versus control group (right rSO2 p = .03, left rSO2 p = .05). No differences in lactic acid values were detected across the procedural continuum. Postoperatively, no differences in extubation times, intensive care unit length of stay, kidney injury, stroke, or infection were demonstrated. DISCUSSION This study suggests hemodilution to be a safe and comparable blood conservation technique, even without accounting for potential benefits of reduced allogenic blood administration. The study may contribute to better understanding and wider acceptance of ANH protocols in high-risk cardiac surgeries.
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Affiliation(s)
- Domagoj Mladinov
- Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Luz A Padilla
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Benjamin Leahy
- Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Joseph B Norman
- Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jacob Enslin
- Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Riley S Camp
- Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Kyle W Eudailey
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Kenichi Tanaka
- Department of Anesthesiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - James E Davies
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Bamgboje AO, Durosinmi MA, Mene-Afejuku TO, Fagbayimu MO, Fajobi O, Balogun MO. Comparative Assessment of Echocardiographic Patterns Among Chronic Myeloid Leukemia Patients on Tyrosine Kinase Inhibitor and Healthy Controls. Vasc Health Risk Manag 2022; 18:27-42. [PMID: 35210781 PMCID: PMC8857989 DOI: 10.2147/vhrm.s348744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/27/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Abayomi O Bamgboje
- Department of Internal Medicine, SCL Healthcare St Vincent’s/Holy Rosary Hospital, Miles city, Montana, 59101, USA
- Correspondence: Abayomi O Bamgboje, Department of Internal Medicine, 1233 North 30th Street, Billings, MT, 59101, USA, Tel +1 9293189246, Email
| | - Muheez A Durosinmi
- Department of Hematology and Immunology Obafemi Awolowo University Teaching Hospitals Complex Ile-Ife, Osun state, Nigeria
| | - Tuoyo O Mene-Afejuku
- Department of Cardiology Tower Health System, Reading Hospital, West Reading, Pennsylvania, USA
| | - Micheal O Fagbayimu
- Department of Surgery Obafemi Awolowo University Teaching Hospitals Complex Ile-Ife, Osun State, Nigeria
| | - Olusola Fajobi
- Department of Community Medicine Awolowo University Teaching Hospitals Complex Ile-Ife, Osun State, Nigeria
| | - Michael O Balogun
- Department of Internal Medicine Cardiology Unit Obafemi Awolowo University Teaching Hospitals Complex Ile-Ife, Osun State, Nigeria
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29
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Kuo K, Palmer L. Pathophysiology of hemorrhagic shock. J Vet Emerg Crit Care (San Antonio) 2022; 32:22-31. [PMID: 35044060 DOI: 10.1111/vec.13126] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Revised: 03/11/2017] [Accepted: 06/21/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hemorrhagic shock is a common condition that may lead to hemodynamic instability, decreased oxygen delivery, cellular hypoxia, organ damage, and ultimately death. CLINICAL IMPORTANCE This review addresses the pathophysiology of hemorrhagic shock. Hemorrhagic shock can be rapidly fatal and is the leading cause of death in human trauma patients. Understanding the pathophysiology of hemorrhagic shock is imperative in understanding the current hemostatic and resuscitative strategies and is foundational to the development of new therapeutic options. KEY POINTS Shock is a state of inadequate cellular energy production and can be triggered by many causes Both traumatic and non-traumatic causes of hemorrhage can lead to the development of hemorrhagic shock Prompt recognition and attenuation of hemorrhage is paramount in preventing the onset or potentiation of hemorrhagic shock Acute hemorrhage produces distinct physiological responses depending on the magnitude and rate of hemorrhage. Hemorrhagic shock may be directly related to the initial injury but may also be exacerbated and complicated by a post-traumatic coagulopathy, termed acute traumatic coagulopathy.
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Affiliation(s)
- Kendon Kuo
- Wilford and Kate Bailey Small Animal Teaching Hospital, Auburn University, Auburn, Alabama, USA
| | - Lee Palmer
- Clinical Sciences, Auburn University, Auburn, Alabama, USA
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30
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Hematologic Risk Assessment. Perioper Med (Lond) 2022. [DOI: 10.1016/b978-0-323-56724-4.00010-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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31
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Thiel PS, Mah AC, Siddiqui M, Lett CD. Changing red blood cell transfusion practice in obstetrics and gynaecology: A before and after study of hospital-wide education. Transfus Med 2021; 32:38-44. [PMID: 34820926 DOI: 10.1111/tme.12839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 10/14/2021] [Accepted: 11/02/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To assess transfusion practices at a Canadian tertiary care center before and after a hospital-wide blood management educational campaign based on the Choosing Wisely toolkit. BACKGROUND Red blood cell (RBC) transfusions are an essential intervention in obstetrics and gynaec ology (O&G). However, with limited guidelines outlining the appropriate use of RBC transfusions, clinicians routinely transfuse based on haemoglobin values and habits. METHODS/MATERIALS We conducted a retrospective chart review of all patients who received a RBC transfusion while admitted under an O&G provider in two 12-month periods-before and after the intervention. The campaign consisted of Grand Rounds, formal and informal teaching, and posters placed within the hospital. We judged appropriateness from a set of criteria guided by the status of ongoing bleeding, pre-transfusion haemoglobin, and the number of units ordered simultaneously. RESULTS Transfusion appropriateness was poor in pre- and post-intervention periods (46% vs. 51%, p = 0.59). The overall rate of RBC transfusion was reduced from 1.8% to 1.2% (83/4610 vs. 55/4618, p = 0.02) after the intervention. There was a 52% reduction in the total number of RBC units of transfused (229 vs. 111, p < 0.001), a 33% reduction in the number of patients transfused (83 vs. 55, p = 0.016), and fewer multiple-unit transfusions without reassessment (39 vs. 13, p = 0.005). CONCLUSION RBC transfusion appropriateness remained low after a hospital-wide educational campaign. However, there was a marked decrease in overall transfusion use, reflecting the adoption of more restrictive transfusion practices. The low rate of transfusion appropriateness represents an opportunity for further improvement.
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Affiliation(s)
- Peter S Thiel
- University of Saskatchewan, College of Medicine, Regina, Canada
| | - Alicia C Mah
- University of Saskatchewan, College of Medicine, Regina, Canada
| | - Muhammad Siddiqui
- Department of Research, Saskatchewan Health Authority, Regina, Canada
| | - Christine D Lett
- University of Saskatchewan, College of Medicine, Regina, Canada.,Department of Obstetrics and Gynecology, Regina General Hospital, Saskatchewan Health Authority, Regina, Canada
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32
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Han J, Ahmadi H, Ladi-Seyedian SS, Clifford TG, Douglawi A, Xu W, Bazargani ST, Mingo S, Thangathurai D, Daneshmand S, Djaladat H. Safety and feasibility of urological procedures in Jehovah's Witness patients. Int J Urol 2021; 29:83-88. [PMID: 34642972 DOI: 10.1111/iju.14721] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/17/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To describe the safety and feasibility of urological transfusion-free surgeries in Jehovah's Witness patients. METHODS An institutional review board-approved, retrospective review of Jehovah's Witness patients who underwent urological transfusion-free surgeries between 2003 and 2019 was carried out. Surgeries were stratified into low, intermediate and high risk based on complexity, invasiveness and bleeding potential. Patient demographics, perioperative data and clinical outcomes are reported. RESULTS A total of 161 Jehovah's Witness patients (median age 63.4 years) underwent 171 transfusion-free surgeries, including 57 (33.3%) in low-, 82 (47.9%) in intermediate- and 32 (18.8%) in high-risk categories. The mean estimated blood loss increased with risk category at 48 mL (range 10-50 mL), 150 mL (range 50-200 mL) and 388 mL (range 137-500 mL), respectively (P < 0.001). Implementing blood augmentation and conservation techniques increased with each risk category (3.5% vs 29% vs 69%, respectively; P < 0.001). Average length of stay increased concordantly at 1.6 days (range 0-12 days), 2.9 days (range 1-13 days) and 5.6 days (range 2-12 days), respectively (P ≤ 0.001). However, there was no increase in complication rates and readmission rates attributed to bleeding among the risk categories at 30 days (P = 0.9 and 0.4, respectively) and 90 days (P = 0.7 and 0.7, respectively). CONCLUSIONS Transfusion free urological surgery can be safely carried out on Jehovah's Witness patients using contemporary perioperative optimization. Additionally, these techniques can be expanded for use in the general patient population to avoid short- and long-term consequences of perioperative blood transfusion.
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Affiliation(s)
- Jullet Han
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Hamed Ahmadi
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Seyedeh-Sanam Ladi-Seyedian
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Thomas G Clifford
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Antoin Douglawi
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Willem Xu
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Soroush T Bazargani
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Samuel Mingo
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Duraiyah Thangathurai
- Department of Anesthesia, Keck Medical Center, University of Southern California, Los Angeles, California, USA
| | - Siamak Daneshmand
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Hooman Djaladat
- Department of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
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Lam MTY, Duttke SH, Odish MF, Le HD, Hansen EA, Nguyen CT, Trescott S, Kim R, Deota S, Chang MW, Patel A, Hepokoski M, Alotaibi M, Rolfsen M, Perofsky K, Warden AS, Foley J, Ramirez SI, Dan JM, Abbott RK, Crotty S, Crotty Alexander LE, Malhotra A, Panda S, Benner CW, Coufal NG. Profiling Transcription Initiation in Peripheral Leukocytes Reveals Severity-Associated Cis-Regulatory Elements in Critical COVID-19. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021:2021.08.24.457187. [PMID: 34462742 PMCID: PMC8404884 DOI: 10.1101/2021.08.24.457187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The contribution of transcription factors (TFs) and gene regulatory programs in the immune response to COVID-19 and their relationship to disease outcome is not fully understood. Analysis of genome-wide changes in transcription at both promoter-proximal and distal cis-regulatory DNA elements, collectively termed the 'active cistrome,' offers an unbiased assessment of TF activity identifying key pathways regulated in homeostasis or disease. Here, we profiled the active cistrome from peripheral leukocytes of critically ill COVID-19 patients to identify major regulatory programs and their dynamics during SARS-CoV-2 associated acute respiratory distress syndrome (ARDS). We identified TF motifs that track the severity of COVID- 19 lung injury, disease resolution, and outcome. We used unbiased clustering to reveal distinct cistrome subsets delineating the regulation of pathways, cell types, and the combinatorial activity of TFs. We found critical roles for regulatory networks driven by stimulus and lineage determining TFs, showing that STAT and E2F/MYB regulatory programs targeting myeloid cells are activated in patients with poor disease outcomes and associated with single nucleotide genetic variants implicated in COVID-19 susceptibility. Integration with single-cell RNA-seq found that STAT and E2F/MYB activation converged in specific neutrophils subset found in patients with severe disease. Collectively we demonstrate that cistrome analysis facilitates insight into disease mechanisms and provides an unbiased approach to evaluate global changes in transcription factor activity and stratify patient disease severity.
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Affiliation(s)
- Michael Tun Yin Lam
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, CA USA
- Laboratory of Regulatory Biology, Salk Institute of Biological Studies, La Jolla, CA, USA
| | - Sascha H. Duttke
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, CA, USA
| | - Mazen F. Odish
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, CA USA
| | - Hiep D. Le
- Laboratory of Regulatory Biology, Salk Institute of Biological Studies, La Jolla, CA, USA
| | - Emily A. Hansen
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
- Department of Pediatrics, University of California, San Diego, CA, USA
| | | | - Samantha Trescott
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
- Department of Pediatrics, University of California, San Diego, CA, USA
| | - Roy Kim
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
- Department of Pediatrics, University of California, San Diego, CA, USA
| | - Shaunak Deota
- Laboratory of Regulatory Biology, Salk Institute of Biological Studies, La Jolla, CA, USA
| | - Max W. Chang
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, CA, USA
| | - Arjun Patel
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, CA USA
| | - Mark Hepokoski
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, CA USA
| | - Mona Alotaibi
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, CA USA
| | - Mark Rolfsen
- Internal Medicine Residency Program, Department of Medicine, UC San Diego, CA, USA
| | - Katherine Perofsky
- Department of Pediatrics, University of California, San Diego, CA, USA
- Rady Children’s Hospital, San Diego, CA
| | - Anna S. Warden
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, CA, USA
| | | | - Sydney I Ramirez
- Division of Infectious Diseases, Department of Medicine, University of California, San Diego
- Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA
| | - Jennifer M. Dan
- Division of Infectious Diseases, Department of Medicine, University of California, San Diego
- Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA
| | - Robert K Abbott
- Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA
- Consortium for HIV/AIDS Vaccine Development (CHVAD), The Scripps Research Institute, La Jolla, CA, USA
| | - Shane Crotty
- Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA
| | - Laura E Crotty Alexander
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, CA USA
| | - Atul Malhotra
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, CA USA
| | - Satchidananda Panda
- Laboratory of Regulatory Biology, Salk Institute of Biological Studies, La Jolla, CA, USA
| | - Christopher W. Benner
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, CA, USA
| | - Nicole G. Coufal
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
- Department of Pediatrics, University of California, San Diego, CA, USA
- Rady Children’s Hospital, San Diego, CA
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Convertino VA, Johnson MC, Alarhayem A, Nicholson SE, Chung KK, DeRosa M, Eastridge BJ. Compensatory reserve detects subclinical shock with more expeditious prediction for need of life-saving interventions compared to systolic blood pressure and blood lactate. Transfusion 2021; 61 Suppl 1:S167-S173. [PMID: 34269439 DOI: 10.1111/trf.16494] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/11/2021] [Accepted: 02/11/2021] [Indexed: 12/27/2022]
Abstract
INTRODUCTION We conducted a prospective observational study on 205 trauma patients at a level I trauma facility to test the hypothesis that a compensatory reserve measurement (CRM) would identify higher risk for progression to shock and/or need a life-saving interventions (LSIs) earlier than systolic blood pressure (SBP) and blood lactate (LAC). METHODS A composite outcome metric included blood transfusion, procedural LSI, and mortality. Discrete measures assessed as abnormal (ab) were SBP <90 mmHg, CRM <60%, and LAC >2.0. A graded categorization of shock was defined as: no shock (normal [n] SBP [n-SBP], n-CRM, n-LAC); sub-clinical shock (ab-CRM, n-SBP, n-LAC); occult shock (n-SBP, ab-CRM, ab-LAC); or overt shock (ab-SBP, ab-CRM, ab-LAC). RESULTS Three patients displayed overt shock, 53 displayed sub-clinical shock, and 149 displayed no shock. After incorporating lactate into the analysis, 86 patients demonstrated no shock, 25 were classified as sub-clinical shock, 91 were classified as occult shock, and 3 were characterized as overt shock. Each shock subcategory revealed a graded increase requiring LSI and transfusion. Initial CRM was associated with progression to shock (odds ratio = 0.97; p < .001) at an earlier time than SBP or LAC. CONCLUSIONS Initial CRM uncovers a clinically relevant subset of patients who are not detected by SBP and LAC. Our results suggest CRM could be used to more expeditiously identify injured patients likely to deteriorate to shock, with requirements for blood transfusion or procedural LSI.
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Affiliation(s)
- Victor A Convertino
- Battlefield Health & Trauma Center for Human Integrative Physiology, US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA.,Department of Medicine and Surgery, Uniformed Services University, Bethesda, Maryland, USA
| | - Michael C Johnson
- Division of Trauma and Emergency Surgery, UT Health San Antonio, San Antonio, Texas, USA
| | - Abdul Alarhayem
- Division of Trauma and Emergency Surgery, UT Health San Antonio, San Antonio, Texas, USA
| | - Susannah E Nicholson
- Division of Trauma and Emergency Surgery, UT Health San Antonio, San Antonio, Texas, USA
| | - Kevin K Chung
- Department of Medicine and Surgery, Uniformed Services University, Bethesda, Maryland, USA
| | - Mark DeRosa
- Division of Trauma and Emergency Surgery, UT Health San Antonio, San Antonio, Texas, USA
| | - Brian J Eastridge
- Division of Trauma and Emergency Surgery, UT Health San Antonio, San Antonio, Texas, USA
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Weiskopf RB, Davenport R, Cap AP, Reddy V, Waters JH, Cserti-Gazdewich C. Increasing hemoglobin concentration with an artificial oxygen carrier improves severe anemia-induced degraded cognitive function. J Trauma Acute Care Surg 2021; 91:S182-S185. [PMID: 33951026 DOI: 10.1097/ta.0000000000003261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
ABSTRACT Before death, patients commonly experience impaired consciousness for a significant period, frequently preventing family and others from final interactions with the patient. Some of these episodes of cognitive impairment may be treatable, with treatment not offered owing to the perception of ultimate futility or expense, or both. One of the causes of terminal loss of consciousness or decreased lucidity can be inadequate cerebral oxygen delivery. We report five cases from four institutions where an infusion of a hemoglobin-based oxygen carrier to patients who were unconscious or not lucid owing to acute severe anemia (hemoglobin range, 2.1-5.2 g/dL) resulted in awakening or lucidity. We review briefly human cognitive function and anemia and remark about the use of a hemoglobin-based oxygen carrier for acute severe anemia when red cell transfusion is not an option.
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Affiliation(s)
- Richard B Weiskopf
- From the Department of Anesthesia and Perioperative Care, University of California (R.B.W.), San Francisco, California; Department of Pathology (R.D.), University of Michigan Medical School; US Army Institute of Surgical Research (A.P.C.), JBSA-Ft Sam Houston, San Antonio, Texas; Department of Medicine (A.P.C.), Uniformed Services University of the Health Sciences, Bethesda, Maryland; Pulmonary and Critical Care Medicine (V.R.), Wellstar Health System, Marietta, Georgia; Department of Anesthesiology and Perioperative Medicine and Bioengineering (J.H.W.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Laboratory Medicine Program (C.C.-G.) and Department of Medical Oncology and Hematology (C.C.-G.), University Health Network, University of Toronto, Toronto, Ontario, Canada
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Benesch C, Glance LG, Derdeyn CP, Fleisher LA, Holloway RG, Messé SR, Mijalski C, Nelson MT, Power M, Welch BG. Perioperative Neurological Evaluation and Management to Lower the Risk of Acute Stroke in Patients Undergoing Noncardiac, Nonneurological Surgery: A Scientific Statement From the American Heart Association/American Stroke Association. Circulation 2021; 143:e923-e946. [PMID: 33827230 DOI: 10.1161/cir.0000000000000968] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Perioperative stroke is a potentially devastating complication in patients undergoing noncardiac, nonneurological surgery. This scientific statement summarizes established risk factors for perioperative stroke, preoperative and intraoperative strategies to mitigate the risk of stroke, suggestions for postoperative assessments, and treatment approaches for minimizing permanent neurological dysfunction in patients who experience a perioperative stroke. The first section focuses on preoperative optimization, including the role of preoperative carotid revascularization in patients with high-grade carotid stenosis and delaying surgery in patients with recent strokes. The second section reviews intraoperative strategies to reduce the risk of stroke, focusing on blood pressure control, perioperative goal-directed therapy, blood transfusion, and anesthetic technique. Finally, this statement presents strategies for the evaluation and treatment of patients with suspected postoperative strokes and, in particular, highlights the value of rapid recognition of strokes and the early use of intravenous thrombolysis and mechanical embolectomy in appropriate patients.
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Dominelli PB, Wiggins CC, Roy TK, Secomb TW, Curry TB, Joyner MJ. The Oxygen Cascade During Exercise in Health and Disease. Mayo Clin Proc 2021; 96:1017-1032. [PMID: 33714599 PMCID: PMC8026750 DOI: 10.1016/j.mayocp.2020.06.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/08/2020] [Accepted: 06/29/2020] [Indexed: 12/28/2022]
Abstract
The oxygen transport cascade describes the physiological steps that bring atmospheric oxygen into the body where it is delivered and consumed by metabolically active tissue. As such, the oxygen cascade is fundamental to our understanding of exercise in health and disease. Our narrative review will highlight each step of the oxygen transport cascade from inspiration of atmospheric oxygen down to mitochondrial consumption in both healthy active males and females along with clinical conditions. We will focus on how different steps interact along with principles of homeostasis, physiological redundancies, and adaptation. In particular, we highlight some of the parallels between elite athletes and clinical conditions in terms of the oxygen cascade.
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Affiliation(s)
| | - Chad C Wiggins
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Tuhin K Roy
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Timothy W Secomb
- Departments of Physiology and Mathematics, University of Arizona, Tucson
| | - Timothy B Curry
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Michael J Joyner
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN.
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Podestà MA, Valli F, Galassi A, Cassia MA, Ciceri P, Barbieri L, Carugo S, Cozzolino M. COVID-19 in Chronic Kidney Disease: The Impact of Old and Novel Cardiovascular Risk Factors. Blood Purif 2021; 50:740-749. [PMID: 33752209 PMCID: PMC8089440 DOI: 10.1159/000514467] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/14/2021] [Indexed: 01/03/2023]
Abstract
Cardiovascular disease is a frequent complication and the most common cause of death in patients with CKD. Despite landmark medical advancements, mortality due to cardiovascular disease is still 20 times higher in CKD patients than in the general population, which is mainly due to the high prevalence of risk factors in this group. Indeed, in addition to traditional cardiovascular risk factors, CKD patients are exposed to nontraditional ones, which include metabolic, hormonal, and inflammatory alterations. The global severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has brought novel challenges for both cardiologists and nephrologists alike. Emerging evidence indicates that coronavirus disease 2019 (COVID-19) increases the risk of cardiovascular events and that several aspects of the disease may synergize with pre-existing cardiovascular risk factors in CKD patients. A better understanding of these mechanisms is pivotal for the prevention and treatment of cardiovascular events in this context, and we believe that additional clinical and experimental studies are needed to improve cardiovascular outcomes in CKD patients with COVID-19. In this review, we provide a summary of traditional and nontraditional cardiovascular risk factors in CKD patients, discussing their interaction with SARS-CoV-2 infection and focusing on CO-VID-19-related cardiovascular complications that may severely affect short- and long-term outcomes in this high-risk population.
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Affiliation(s)
- Manuel Alfredo Podestà
- Renal Division, Department of Health Sciences, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Federica Valli
- Cardiology Unit, Department of Health Sciences, ASST Santi Paolo e Carlo, Milan, University of Milan, Milan, Italy
| | - Andrea Galassi
- Renal Division, Department of Health Sciences, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Matthias A Cassia
- Renal Division, Department of Health Sciences, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Paola Ciceri
- Department of Nephrology, Dialysis and Renal Transplant, Renal Research Laboratory, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Lucia Barbieri
- Cardiology Unit, Department of Health Sciences, ASST Santi Paolo e Carlo, Milan, University of Milan, Milan, Italy
| | - Stefano Carugo
- Cardiology Unit, Department of Health Sciences, ASST Santi Paolo e Carlo, Milan, University of Milan, Milan, Italy
| | - Mario Cozzolino
- Renal Division, Department of Health Sciences, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy,
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Known and Unknown Unknowns in Making Erythrocyte Transfusion Decisions. Anesthesiology 2021; 134:359-362. [PMID: 33475721 DOI: 10.1097/aln.0000000000003687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Laroche V, Blais‐Normandin I. Clinical Uses of Blood Components. Transfus Med 2021. [DOI: 10.1002/9781119599586.ch10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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41
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Abstract
Perioperative medicine is an evolving area of medicine in which collaboration between internists, hospitalists, surgeons and anesthesiologists is the key to delivering high-quality care. Research in all areas of perioperative medicine, including perioperative anemia, is constantly evolving. Perioperative anemia is a major contributor to mortality and morbidity in the perioperative period. It is associated with an increased likelihood of postoperative wound complications, infections, delirium, increased length of stay and increased risk of readmissions. However, there is a lack of comprehensive guidelines for management of perioperative anemia. We performed an exhaustive review of contemporary literature on perioperative anemia and present evaluation and management recommendations that have the potential to impact clinical practice in the perioperative period.
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Affiliation(s)
- Yogita Sharma Segon
- Division of General Internal Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Sara Dunbar
- Division of General Internal Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Barbara Slawski
- Division of General Internal Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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42
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Convertino VA, Koons NJ, Suresh MR. Physiology of Human Hemorrhage and Compensation. Compr Physiol 2021; 11:1531-1574. [PMID: 33577122 DOI: 10.1002/cphy.c200016] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hemorrhage is a leading cause of death following traumatic injuries in the United States. Much of the previous work in assessing the physiology and pathophysiology underlying blood loss has focused on descriptive measures of hemodynamic responses such as blood pressure, cardiac output, stroke volume, heart rate, and vascular resistance as indicators of changes in organ perfusion. More recent work has shifted the focus toward understanding mechanisms of compensation for reduced systemic delivery and cellular utilization of oxygen as a more comprehensive approach to understanding the complex physiologic changes that occur following and during blood loss. In this article, we begin with applying dimensional analysis for comparison of animal models, and progress to descriptions of various physiological consequences of hemorrhage. We then introduce the complementary side of compensation by detailing the complexity and integration of various compensatory mechanisms that are activated from the initiation of hemorrhage and serve to maintain adequate vital organ perfusion and hemodynamic stability in the scenario of reduced systemic delivery of oxygen until the onset of hemodynamic decompensation. New data are introduced that challenge legacy concepts related to mechanisms that underlie baroreflex functions and provide novel insights into the measurement of the integrated response of compensation to central hypovolemia known as the compensatory reserve. The impact of demographic and environmental factors on tolerance to hemorrhage is also reviewed. Finally, we describe how understanding the physiology of compensation can be translated to applications for early assessment of the clinical status and accurate triage of hypovolemic and hypotensive patients. © 2021 American Physiological Society. Compr Physiol 11:1531-1574, 2021.
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Affiliation(s)
- Victor A Convertino
- Battlefield Healthy & Trauma Center for Human Integrative Physiology, United States Army Institute of Surgical Research, JBSA San Antonio, Texas, USA
| | - Natalie J Koons
- Battlefield Healthy & Trauma Center for Human Integrative Physiology, United States Army Institute of Surgical Research, JBSA San Antonio, Texas, USA
| | - Mithun R Suresh
- Battlefield Healthy & Trauma Center for Human Integrative Physiology, United States Army Institute of Surgical Research, JBSA San Antonio, Texas, USA
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43
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Abstract
Severe hypoxemia presents variably, and sometimes silently, without subjective complaints of dyspnea. The adequacy of cardiovascular compensation for oxygen delivery to tissues should be a focus in all hypoxemic patients.
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44
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Tanaka S, Kamiya K, Saito H, Saito K, Ogasahara Y, Maekawa E, Konishi M, Kitai T, Iwata K, Jujo K, Wada H, Kasai T, Hamazaki N, Nozaki K, Nagamatsu H, Ozawa T, Izawa K, Yamamoto S, Aizawa N, Wakaume K, Oka K, Momomura SI, Kagiyama N, Matsue Y. Prevalence and prognostic value of the coexistence of anaemia and frailty in older patients with heart failure. ESC Heart Fail 2020; 8:625-633. [PMID: 33295134 PMCID: PMC7835564 DOI: 10.1002/ehf2.13140] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 11/01/2020] [Accepted: 11/11/2020] [Indexed: 12/17/2022] Open
Abstract
Aims There have been no investigations of the prevalence and clinical implications of coexistence of anaemia and frailty in older patients hospitalized with heart failure (HF) despite their association with adverse health outcomes. The present study was performed to determine the prevalence and prognostic value of the coexistence of anaemia and frailty in hospitalized older patients with HF. Methods and results We performed post hoc analysis of consecutive hospitalized HF patients ≥65 years old enrolled in the FRAGILE‐HF, which was the prospective, multicentre, observational study. Anaemia was defined as haemoglobin < 13 g/dL in men and <12 g/dL in women, and frailty was evaluated according to the Fried phenotype model. The study endpoint was all‐cause mortality. Of the total of 1332 patients, 1217 (median age, 81 years; 57.4% male) were included in the present study. The rates of anaemia and frailty in the study population were 65.7% and 57.0%, respectively. The patients were classified into the non‐anaemia/non‐frail group (16.6%), anaemia/non‐frail group (26.4%), non‐anaemia/frail group (17.7%), and anaemia/frail group (39.3%). A total of 144 patients died during 1 year of follow‐up. In multivariate analyses, only the anaemia/frail group showed a significant association with elevated mortality rate (adjusted hazard ratio, 1.94; 95% confidence interval, 1.02–3.70; P = 0.043), compared with the non‐anaemia/non‐frail group after adjusting for other covariates. Conclusions Coexistence of anaemia and frailty are prevalent in hospitalized older patients with HF, and it has a negative impact on mortality.
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Affiliation(s)
- Shinya Tanaka
- Department of Rehabilitation, Nagoya University Hospital, Aichi, Japan
| | - Kentaro Kamiya
- Department of Rehabilitation, School of Allied Health Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0373, Japan
| | - Hiroshi Saito
- Department of Rehabilitation, Kameda Medical Center, Chiba, Japan.,Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kazuya Saito
- Department of Rehabilitation, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Yuki Ogasahara
- Department of Nursing, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Emi Maekawa
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Kanagawa, Japan
| | - Masaaki Konishi
- Division of Cardiology, Yokohama City University Medical Center, Kanagawa, Japan
| | - Takeshi Kitai
- Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - Kentaro Iwata
- Department of Rehabilitation, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - Kentaro Jujo
- Department of Cardiology, Nishiarai Heart Center Hospital, Tokyo, Japan
| | - Hiroshi Wada
- Department of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobuaki Hamazaki
- Department of Rehabilitation, Kitasato University Hospital, Kanagawa, Japan
| | - Kohei Nozaki
- Department of Rehabilitation, Kitasato University Hospital, Kanagawa, Japan
| | - Hirofumi Nagamatsu
- Department of Cardiology, Tokai University School of Medicine, Tokyo, Japan
| | - Tetsuya Ozawa
- Department of Rehabilitation, Odawara Municipal Hospital, Kanagawa, Japan
| | - Katsuya Izawa
- Department of Rehabilitation, Kasukabe Chuo General Hospital, Saitama, Japan
| | - Shuhei Yamamoto
- Department of Rehabilitation, Shinshu University Hospital, Nagano, Japan
| | - Naoki Aizawa
- Department of Cardiovascular Medicine, Nephrology and Neurology, University of Ryukyus, Okinawa, Japan
| | - Kazuki Wakaume
- Department of Rehabilitation, Kitasato University Medical Center, Saitama, Japan
| | - Kazuhiro Oka
- Department of Rehabilitation, Saitama Citizens Medical Center, Saitama, Japan
| | | | - Nobuyuki Kagiyama
- Department of Cardiology, The Sakakibara Heart Institute of Okayama, Okayama, Japan.,West Virginia University Heart and Vascular Institute, Morgantown, WV, USA
| | - Yuya Matsue
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
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45
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Weiskopf RB, Glassberg E, Guinn NR, James MFM, Ness PM, Pusateri AE. The need for an artificial oxygen carrier for disasters and pandemics, including COVID-19. Transfusion 2020; 60:3039-3045. [PMID: 32978804 PMCID: PMC7537157 DOI: 10.1111/trf.16122] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/18/2020] [Accepted: 09/19/2020] [Indexed: 01/29/2023]
Affiliation(s)
| | - Elon Glassberg
- The Israel Defense Force Medical Corps, Ramat Gan, Israel.,Departments of Surgery, Bar-Ilan University Faculty of Medicine, Safed, Israel, and The Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Nicole R Guinn
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Michael F M James
- Department of Anaesthesia and Perioperative Medicine, University of Cape Town, Cape Town, South Africa
| | - Paul M Ness
- Transfusion Medicine Division, Department of Pathology, Johns Hopkins University, School of Medicine, Baltimore, Maryland, USA
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46
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Tomic Mahecic T, Dünser M, Meier J. RBC Transfusion Triggers: Is There Anything New? Transfus Med Hemother 2020; 47:361-368. [PMID: 33173454 PMCID: PMC7590774 DOI: 10.1159/000511229] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 08/31/2020] [Indexed: 01/28/2023] Open
Abstract
For many years, in daily clinical practice, the traditional 10/30 rule (hemoglobin 10 g/dL - hematocrit 30%) has been the most commonly used trigger for blood transfusions. Over the years, this approach is believed to have contributed to a countless number of unnecessary transfusions and an unknown number of overtransfusion-related deaths. Recent studies have shown that lower hemoglobin levels can safely be accepted, even in critically ill patients. However, even these new transfusion thresholds are far beyond the theoretical limits of individual anemia tolerance. For this reason, almost all publications addressing the limits of acute anemia recommend physiological transfusion triggers to indicate the transfusion of erythrocyte concentrates as an alternative. Although this concept appears intuitive at first glance, no solid scientific evidence supports the safety and benefit of physiological transfusion triggers to indicate the optimal time point for transfusion of allogeneic blood. It is therefore imperative to continue searching for the most sensitive and specific parameters that can guide the clinician when to transfuse in order to avoid anemia-induced organ dysfunction while avoiding overtransfusion-related adverse effects. This narrative review discusses the concept of anemia tolerance and critically compares hemoglobin-based triggers with physiological transfusion for various clinical indications.
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Affiliation(s)
- Tina Tomic Mahecic
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Center Zagreb − Rebro, Zagreb, Croatia
| | - Martin Dünser
- Department of Anesthesiology and Intensive Care Medicine, Johannes Kepler University, Linz, Austria
| | - Jens Meier
- Department of Anesthesiology and Intensive Care Medicine, Johannes Kepler University, Linz, Austria
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47
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Kingston HWF, Ghose A, Rungpradubvong V, Satitthummanid S, Herdman MT, Plewes K, Ishioka H, Leopold SJ, Sinha I, Intharabut B, Piera K, McNeil Y, Mohanty S, Maude RJ, White NJ, Day NPJ, Yeo TW, Hossain MA, Anstey NM, Dondorp AM. Cell-Free Hemoglobin Is Associated With Increased Vascular Resistance and Reduced Peripheral Perfusion in Severe Malaria. J Infect Dis 2020; 221:127-137. [PMID: 31693729 DOI: 10.1093/infdis/jiz359] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 09/25/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND In severe falciparum malaria, unlike sepsis, hypotension on admission is uncommon. We hypothesized that low nitric oxide bioavailability due to the presence of cell-free hemoglobin (CFH) increases vascular tone in severe malaria. METHODS Patients with severe malaria (n = 119), uncomplicated malaria (n = 91), or suspected bacterial sepsis (n = 56), as well as healthy participants (n = 50), were recruited. The systemic vascular resistance index (SVRI) was estimated from the echocardiographic cardiac index and the mean arterial pressure. RESULTS SVRI and hematocrit levels were lower and plasma CFH and asymmetric dimethylarginine levels were higher in patients with malaria, compared with healthy participants. In multivariate linear regression models for mean arterial pressure or SVRI in patients with severe malaria, hematocrit and CFH but not asymmetric dimethylarginine were significant predictors. The SVRI was lower in patients with suspected bacterial sepsis than in those with severe malaria, after adjustment for hematocrit and age. Plasma CFH levels correlated positively with the core-peripheral temperature gradient and plasma lactate levels and inversely with the perfusion index. Impaired peripheral perfusion, as reflected by a low perfusion index or a high core-peripheral temperature gradient, predicted mortality in patients with severe malaria. CONCLUSIONS CFH is associated with mean arterial pressure, SVRI, and peripheral perfusion in patients with severe malaria. This may be mediated through the nitric oxide scavenging potency of CFH, increasing basal vascular tone and impairing tissue perfusion.
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Affiliation(s)
- Hugh W F Kingston
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia.,Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, Oxford, United Kingdom
| | | | - Voravut Rungpradubvong
- Division of Cardiology, Department of Medicine, Faculty of Medicine, Chulalongkorn University.,Cardiac Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Sudarat Satitthummanid
- Division of Cardiology, Department of Medicine, Faculty of Medicine, Chulalongkorn University.,Cardiac Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - M Trent Herdman
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University
| | - Katherine Plewes
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, Oxford, United Kingdom
| | - Haruhiko Ishioka
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University
| | - Stije J Leopold
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, Oxford, United Kingdom
| | - Ipsita Sinha
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, Oxford, United Kingdom
| | - Benjamas Intharabut
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University
| | - Kim Piera
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Yvette McNeil
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | | | - Richard J Maude
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, Oxford, United Kingdom
| | - Nicholas J White
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, Oxford, United Kingdom
| | - Nicholas P J Day
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, Oxford, United Kingdom
| | - Tsin W Yeo
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia.,Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.,Communicable Disease Centre, Institute of Infectious Diseases and Epidemiology, Tan Tock Seng Hospital, Singapore
| | | | - Nicholas M Anstey
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Arjen M Dondorp
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, Oxford, United Kingdom
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48
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Acciacca RA, Sullivan LA, Webb TL, Johnson V, Dow SW. Clinical evaluation of hyperimmune plasma for treatment of dogs with naturally occurring parvoviral enteritis. J Vet Emerg Crit Care (San Antonio) 2020; 30:525-533. [PMID: 32705762 DOI: 10.1111/vec.12987] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 11/08/2018] [Accepted: 01/05/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To evaluate the clinical efficacy of a single infusion of hyperimmune plasma (HIP) in dogs with canine parvovirus (CPV). DESIGN Prospective, randomized, placebo-controlled clinical trial. SETTING University teaching hospital. ANIMALS Client-owned dogs with naturally occurring CPV. INTERVENTIONS Dogs presenting for CPV treatment (n = 31) underwent cardiovascular resuscitation and were randomized to receive a single dose of either HIP (10 mL/kg IV) or placebo (0.9% sodium chloride [10 mL/kg IV]) during the first 6 hours of hospitalization. All dogs were treated with a standardized treatment protocol (IV fluid therapy [120 mL/kg/d isotonic crystalloids], cefoxitin [30 mg/kg IV q 8 h], maropitant [1 mg/kg IV q 24 h], and buprenorphine [0.01-0.02 mg/kg IV q 8 h]) until hospital discharge. MEASUREMENTS AND MAIN RESULTS Dogs treated with HIP (n = 16) demonstrated a lower shock index at 24 hours (median = 0.77, range: 0.5-1.5) than those treated with placebo (n = 15, median = 1.34, range: 0.5-1.7; P = 0.02). Plasma lactate concentration was lower at 24 hours in HIP-treated dogs (median = 1.3 mmol/L, range: 0.9-3.4 mmol/L) than in placebo-treated dogs (median = 2.1 mmol/L, range: 1.1-3.4 mmol/L; P = 0.01). There was no difference in duration of hospitalization when comparing HIP-treated dogs (median = 3.2 days, range: 0.83-10 days) to placebo-treated dogs (median = 2.83 days, range: 1-8.38 days; P = 0.35). Survival was 16 of 16 (100%) for the HIP group and 14 of 15 (93.3%) for the placebo group (P = 0.32). CONCLUSIONS HIP at 10 mL/kg IV administered to dogs with CPV within the first 6 hours of hospitalization improves markers of shock during the initial 24 hours of hospitalization. No effects were observed on duration of hospitalization or mortality; however, this study was underpowered to evaluate these effects. HIP was well tolerated in this population of critically ill dogs.
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Affiliation(s)
- Rachel A Acciacca
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Lauren A Sullivan
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Tracy L Webb
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Valerie Johnson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Steven W Dow
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
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49
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Convertino VA, Koons NJ. The compensatory reserve: potential for accurate individualized goal-directed whole blood resuscitation. Transfusion 2020; 60 Suppl 3:S150-S157. [PMID: 32478902 DOI: 10.1111/trf.15632] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 11/29/2022]
Abstract
Hemorrhagic shock can be mitigated by timely and accurate resuscitation designed to restore adequate delivery of oxygen (DO2 ). Current doctrine of using systolic blood pressure (SBP) as a guide for resuscitation can be associated with increased morbidity. The compensatory reserve measurement (CRM) is a novel vital sign based on the recognition that the sum of all mechanisms that contribute to the compensatory response to hemorrhage reside in features of the arterial pulse waveform. CRM can be assessed continuously and non-invasively in real time. Compared to standard vital signs, CRM provides an early, as well as more sensitive and specific, indicator of patient hemorrhagic status since the activation of compensatory mechanisms occurs immediately at the onset of blood loss. Recent data obtained from our laboratory experiments on non-human primates have demonstrated that CRM is linearly related to DO2 during controlled progressive hemorrhage and subsequent whole blood resuscitation. We used this relationship to determine that the time of hemodynamic decompensation (i.e., CRM = 0%) is defined by a critical DO2 at approximately 5.3 mL O2 ∙kg-1 ∙min-1 . We also demonstrated that a target CRM of 35% during whole blood resuscitation only required replacement of 40% of the total blood volume loss to adequately sustain a DO2 more than 50% (i.e., 8.1 mL O2 ∙kg-1 ∙min-1 ) above critical DO2 (i.e., threshold for decompensated shock) while maintaining hypotensive resuscitation (i.e., SBP at ~90 mmHg). Consistent with our hypothesis, specific values of CRM can be used to accurately maintain DO2 thresholds above critical DO2 , avoiding the onset of hemorrhagic shock with whole blood resuscitation.
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Affiliation(s)
- Victor A Convertino
- Battlefield Health & Trauma Center for Human Integrative Physiology, United States Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Natalie J Koons
- Battlefield Health & Trauma Center for Human Integrative Physiology, United States Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
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50
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Monaco F, Di Prima AL, Kim JH, Plamondon MJ, Yavorovskiy A, Likhvantsev V, Lomivorotov V, Hajjar LA, Landoni G, Riha H, Farag A, Gazivoda G, Silva F, Lei C, Bradic N, El-Tahan M, Bukamal N, Sun L, Wang C. Management of Challenging Cardiopulmonary Bypass Separation. J Cardiothorac Vasc Anesth 2020; 34:1622-1635. [DOI: 10.1053/j.jvca.2020.02.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 02/19/2020] [Accepted: 02/21/2020] [Indexed: 11/11/2022]
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