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Quinn T, Cholette JM, Pinto MG, Schreiber H, Madden MA, Bennett E, Kolmar A, Poole A, Silva CT, Ehrlich L, Navarro OM, Faustino EVS. Antithrombin activity and central venous catheter-associated thrombosis in critically ill children at high risk of bleeding. J Thromb Haemost 2024; 22:213-224. [PMID: 37797693 DOI: 10.1016/j.jtha.2023.09.023] [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: 07/03/2023] [Revised: 08/21/2023] [Accepted: 09/21/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Normalization of antithrombin activity may prevent catheter-associated thrombosis in critically ill children at high risk of bleeding. OBJECTIVES To characterize the temporal pattern of antithrombin activity, assess its association with catheter-associated thrombosis and clinically relevant bleeding, and evaluate its relationship with thrombin generation in these children. METHODS In this prospective cohort study, critically ill children <18 years old at high risk of bleeding with central venous catheter were eligible. Antithrombin activity and thrombin generation were measured from platelet-poor plasma and after in vitro antithrombin supplementation. Systematic surveillance ultrasound was performed to diagnose thrombosis. Children were followed for bleeding. RESULTS We enrolled 8 infants (median age: 0.2 years, IQR: 0.2, 0.3 years) and 72 older children (median age: 14.3 years, IQR: 9.1, 16.1 years). Mean antithrombin on the day of catheter insertion was 64 IU/dL (SD: 32 IU/dL) in infants and 83 IU/dL (SD: 35 IU/dL) in older children. Antithrombin normalized by the day of catheter removal. Thrombosis developed in 27 children, while 31 children bled. Thrombosis (regression coefficient: 0.008, 95% CI: -0.01, 0.03) and bleeding (regression coefficient: -0.0007, 95% CI: -0.02, 0.02) were not associated with antithrombin. Antithrombin was not correlated with in vivo change in endogenous thrombin potential (correlation coefficient: -0.07, 95% CI: -0.21, 0.08). In vitro supplementation reduced endogenous thrombin potential (correlation coefficient: -0.78; 95% CI: -0.95, -0.23). CONCLUSION These findings may not support normalization of antithrombin activity to prevent catheter-associated thrombosis in critically ill children at high risk of bleeding.
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Affiliation(s)
- Tyler Quinn
- Pediatric Intensive Care Unit, Yale-New Haven Children's Hospital, New Haven, Connecticut, USA
| | - Jill M Cholette
- Department of Pediatrics, University of Rochester Golisano Children's Hospital, Rochester, New York, USA
| | - Matthew G Pinto
- Department of Pediatrics, New York Medical College, Maria Fareri Children's Hospital, Valhalla, New York, USA
| | - Hilary Schreiber
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Maureen A Madden
- Department of Pediatrics, Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Erin Bennett
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Amanda Kolmar
- Department of Pediatrics, Washington University in St Louis, St Louis, Missouri, USA
| | - Alan Poole
- Division of Critical Care, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Cicero T Silva
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA
| | - Lauren Ehrlich
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA
| | - Oscar M Navarro
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada; Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
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Lyle ANJ, Shaikh H, Oslin E, Gray MM, Weiss EM. Race and Ethnicity of Infants Enrolled in Neonatal Clinical Trials: A Systematic Review. JAMA Netw Open 2023; 6:e2348882. [PMID: 38127349 PMCID: PMC10739112 DOI: 10.1001/jamanetworkopen.2023.48882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/08/2023] [Indexed: 12/23/2023] Open
Abstract
Importance Representativeness of populations within neonatal clinical trials is crucial to moving the field forward. Although racial and ethnic disparities in research inclusion are well documented in other fields, they are poorly described within neonatology. Objective To describe the race and ethnicity of infants included in a sample of recent US neonatal clinical trials and the variability in this reporting. Evidence Review A systematic search of US neonatal clinical trials entered into Cochrane CENTRAL 2017 to 2021 was conducted. Two individuals performed inclusion determination, data extraction, and quality assessment independently with discrepancies adjudicated by consensus. Findings Of 120 studies with 14 479 participants that met the inclusion criteria, 75 (62.5%) included any participant race or ethnicity data. In the studies that reported race and ethnicity, the median (IQR) percentage of participants of each background were 0% (0%-1%) Asian, 26% (9%-42%) Black, 3% (0%-12%) Hispanic, 0% (0%-0%) Indigenous (eg, Alaska Native, American Indian, and Native Hawaiian), 0% (0%-0%) multiple races, 57% (30%-68%) White, and 7% (1%-21%) other race or ethnicity. Asian, Black, Hispanic, and Indigenous participants were underrepresented, while White participants were overrepresented compared with a reference sample of the US clinical neonatal intensive care unit (NICU) population from the Vermont Oxford Network. Many participants were labeled as other race or ethnicity without adequate description. There was substantial variability in terms and methods of reporting race and ethnicity data. Geographic representation was heavily skewed toward the Northeast, with nearly one-quarter of states unrepresented. Conclusions and Relevance These findings suggest that neonatal research may perpetuate inequities by underrepresenting Asian, Black, Hispanic, and Indigenous neonates in clinical trials. Studies varied in documentation of race and ethnicity, and there was regional variation in the sites included. Based on these findings, funders and clinical trialists are advised to consider a 3-point targeted approach to address these issues: prioritize identifying ways to increase diversity in neonatal clinical trial participation, agree on a standardized method to report race and ethnicity among neonatal clinical trial participants, and prioritize the inclusion of participants from all regions of the US in neonatal clinical trials.
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Affiliation(s)
- Allison N J Lyle
- Department of Pediatrics, University of Washington School of Medicine, Seattle
| | - Henna Shaikh
- Department of Pediatrics, University of Washington School of Medicine, Seattle
| | - Ellie Oslin
- Treuman Katz Center for Pediatric Bioethics and Palliative Care, Seattle Children's Research Institute, Seattle, Washington
| | - Megan M Gray
- Department of Pediatrics, University of Washington School of Medicine, Seattle
| | - Elliott Mark Weiss
- Department of Pediatrics, University of Washington School of Medicine, Seattle
- Treuman Katz Center for Pediatric Bioethics and Palliative Care, Seattle Children's Research Institute, Seattle, Washington
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Li T, Bo F, Meng X, Wang D, Ma J, Dai Z. The effect of perioperative antithrombin supplementation on blood conservation and postoperative complications after cardiopulmonary bypass surgery: A systematic review, meta-analysis and trial sequential analysis. Heliyon 2023; 9:e22266. [PMID: 38053853 PMCID: PMC10694320 DOI: 10.1016/j.heliyon.2023.e22266] [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: 04/07/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 12/07/2023] Open
Abstract
Study objective Antithrombin (AT) activity is reduced during cardiopulmonary bypass (CPB) surgery. Guidelines has demonstrated that perioperative AT supplementation contributed to blood conservation and prevent perioperative thrombotic complications and target organ injury owing to its role in reducing thrombin generation. But these recommends is lack of support of meta-analysis in the guidelines. This meta-analysis aims to include all the relevant randomized controlled trails (RCT) on patients who experienced cardiac surgeries with CPB and investigate the effect of perioperative AT on blood conservation and complications after cardiac surgery. Methods Standard published RCTs were searched from bibliographic databases to identify all evidence reporting perioperative AT supplementation for patients undergoing cardiovascular surgeries. The primary outcome was postoperative blood loss, the secondary outcomes were blood component transfusion (red blood cell (RBC), fresh frozen plasma (FFP), platelet and autologous blood), postoperative morbidity and in hospital mortality. The relative risk (RR) for dichotomous outcomes and the standardized mean difference (SMD) for continuous outcomes were estimated using a random-effects model. Trial sequential analysis (TSA) was performed using TSA software 0.9.5.10. Results 13 RCTs with 996 participants undergoing different cardiovascular surgeries were included. Meta-analysis showed AT did not decrease postoperative blood loss (SMD -0.01, 95%CI -0.2 to 0.19). Subgroup analysis showed the effect of AT on postoperative blood loss was not associated with age, RCT type, surgery type, injection time of AT and AT deficiency. TSA further suggested that no additional studies were required for the stable result. Perioperative AT also did not reduce RBC ((SMD 0.10, 95%CI -0.66 to 0.85), (RR 0.99, 95%CI 0.83 to 1.19)), FFP ((SMD 0.11, 95%CI -0.19 to 0.41), (RR 1.30, 95%CI 0.90 to 1.87)), platelet (RR 1.10, 95%CI 0.83 to 1.46) and autologous blood (SMD 0.46, 95%CI -0.12 to 1.8504) transfusions. Perioperative AT significantly increased in hospital mortality (RR 2.53, 95%CI 1.02 to 6.28) and acute kidney injury (AKI) (RR 3.72, 95%CI 1.73 to 8.04) incidence. There was no significant difference in postoperative reexploration, thromboembolism, ECMO/IABP support, and stroke incidence between AT and non-AT group. Conclusions With the improvement of AT level and heparin sensitivity, perioperative AT has no significant effect on blood conservation. And it is noteworthy that the treatment increased in hospital mortality and the incidence of AKI after cardiac surgery.
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Affiliation(s)
- Tao Li
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - FengShan Bo
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - XiangRui Meng
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Di Wang
- Department of Internal Medicine, Yantai Haigang Hospital, Yantai, 264000, Shandong, China
| | - Jiahai Ma
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Zhao Dai
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
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Romlin B, Schreiber JU, Momeni M, Ravn HB, Erdoes G. Antithrombin substitution practice in pediatric cardiac surgery: A European survey. Paediatr Anaesth 2023; 33:400-401. [PMID: 36651693 DOI: 10.1111/pan.14633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023]
Affiliation(s)
- Birgitta Romlin
- Department of Paediatric Anesthesia and Intensive Care, The Queen Silvia Children's Hospital, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan-Uwe Schreiber
- Department of Anesthesia and Pain Medicine, Maastricht UMC, Maastricht, The Netherlands
| | - Mona Momeni
- Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Hanne Bergh Ravn
- Odense University Hospital, Institute of Clinical Medicine, Health Faculty, University of Southern, Odense, Denmark
| | - Gabor Erdoes
- University Department of Anesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Saleem Y, Darbari A, Sharma R, Vashisth A, Gupta A. Recent advancements in pediatric cardiopulmonary bypass technology for better outcomes of pediatric cardiac surgery. THE CARDIOTHORACIC SURGEON 2022. [DOI: 10.1186/s43057-022-00084-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Pediatric cardiac surgery is in itself very enigmatic and individualized. Presently, there has been a slew of new developments aimed primarily toward pediatric cardiopulmonary bypass for safer, patient-centered pediatric cardiac surgery. Still, lot of technological challenges need to be resolved, and their safer application in pediatric and neonate patients requires further refinement.
Main body of the abstract
Considering various significant yet unresolved issues of pediatric cardiac bypass, an exhaustive literature search was done on various internet databases with standard keywords. There are various new recent improvements; as the first oxygenator explicitly designed for neonatal patients; pediatric oxygenators with low prime volumes and surface areas that allow flows up to 2 L/min; pediatric oxygenators with integrated arterial filters; and miniature ultrafiltration devices that allow for high rates of ultrafiltrate removal. These advancements can significantly reduce cardiopulmonary bypass circuit surface areas and prime volumes. These advancements could reduce or eliminate the requirement for homologous red blood cells during or after surgery with reduction or eliminate bypass-related hemodilution, and inflammation. Because of the immaturity of the neonatal hemostatic system, conventional coagulation tests alone are insufficient to guide neonatal hemostatic therapy. Myocardial preservation techniques, safe temperature with duration are still debatable and yet to be fully explored.
Short conclusion
This review is based on Standards for Quality Improvement Reporting Excellence guidelines to provide a framework for reporting new knowledge to find better management strategy for pediatric cardiac cases.
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Fang ZA, Bruzdoski K, Kostousov V, Hui SKR, Vener D, Gottlieb E, Teruya J. Low antithrombin levels in neonates and infants undergoing congenital heart surgery result in more red blood cell and plasma transfusion on cardiopulmonary bypass. Transfusion 2020; 60:2841-2848. [PMID: 32939767 DOI: 10.1111/trf.16082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/05/2020] [Accepted: 08/09/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Neonates have lower levels of antithrombin (AT) due to immature liver synthetic function. AT deficiency may lead to inadequate anticoagulation with heparin during cardiac surgery resulting in consumption of coagulation factors and increased blood transfusion. The goal of this study is to examine the effect of AT level on the transfusion requirements of neonates and infants undergoing open heart surgery. STUDY DESIGN AND METHODS This is a prospective, observational study at a tertiary pediatric referral center. Neonates and infants up to 6 months of age undergoing congenital heart surgery with cardiopulmonary bypass (CPB) were enrolled. Demographic, intraoperative, transfusion, and complications data were collected. Preoperative AT level was measured after induction of anesthesia. Prior to separation from CPB, a second blood sample was drawn and AT, thrombin antithrombin complex (TAT), D-dimer, and anti-Xa levels were measured. Linear and logistic regression were performed for data analysis. RESULTS Preoperative low AT level was significantly associated with increased transfusion of red blood cells (RBCs) and fresh frozen plasma (FFP) during CPB, but not after separation from CPB. The incidence of thrombosis and re-operation were not associated with preoperative AT levels. There was no association between TAT, D-dimer, and anti-Xa levels at the end of CPB and preoperative AT levels. CONCLUSION Low preoperative AT level is associated with increased transfusion of RBC and FFP on CPB in neonates and infants undergoing congenital heart surgery. Low preoperative AT level did not result in coagulation activation after CPB and after surgery.
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Affiliation(s)
- Zhe Amy Fang
- Department of Anesthesiology and Pain Medicine, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Karen Bruzdoski
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA
| | - Vadim Kostousov
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA.,Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - Shiu-Ki Rocky Hui
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA.,Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - David Vener
- Department of Anesthesiology and Pain Medicine, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Erin Gottlieb
- Texas Center for Pediatric and Congenital Heart Disease, The University of Texas Dell Medical School/Dell Children's Medical Center, Austin, Texas, USA
| | - Jun Teruya
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA.,Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, USA.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA.,Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
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Ross FJ, Vu EL, Fang ZA, Resheidat A, Mossad EB, Mittnacht AJC. Selected 2019 Highlights in Congenital Cardiac Anesthesia. J Cardiothorac Vasc Anesth 2020; 34:2022-2027. [PMID: 32418836 DOI: 10.1053/j.jvca.2020.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 04/07/2020] [Indexed: 11/11/2022]
Abstract
This article is a review of the highlights of pertinent literature published in 2019, which is of interest to the pediatric cardiac anesthesiologist. After a search of the United States National Library of Medicine PubMed database, several topics emerged in which significant contributions were made in 2019. The authors of this manuscript considered the following topics noteworthy and were included in this review: advances in pediatric heart transplantation, blood management in pediatric cardiac surgery, the impact of nutrition on outcomes in congenital heart surgery, and the use of vasopressin in patients after Fontan palliation.
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Affiliation(s)
- Faith J Ross
- Department of Anesthesiology, Seattle Children's Hospital, University of Washington, Seattle, WA
| | - Eric L Vu
- Department of Anesthesiology, Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Zhe A Fang
- Department of Anesthesia and Pain Medicine, Hospital for Sick Children Toronto, Ontario, Canada
| | - Ashraf Resheidat
- Division of Pediatric Cardiovascular Anesthesia, Baylor College of Medicine, Texas Children's Hospital, Houston, TX
| | - Emad B Mossad
- Division of Pediatric Cardiovascular Anesthesia, Baylor College of Medicine, Texas Children's Hospital, Houston, TX
| | - Alexander J C Mittnacht
- Department of Anesthesiology, Westchester Medical Center, New York Medical College, Valhalla, NY.
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Mazzeffi M. Patient Blood Management in Adult Extracorporeal Membrane Oxygenation Patients. CURRENT ANESTHESIOLOGY REPORTS 2020. [DOI: 10.1007/s40140-020-00384-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Kim BR, Oh J, Yu KS, Ryu HG. Pharmacokinetics of human antithrombin III concentrate in the immediate postoperative period after liver transplantation. Br J Clin Pharmacol 2020; 86:923-932. [PMID: 31840271 DOI: 10.1111/bcp.14200] [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: 08/20/2019] [Revised: 11/18/2019] [Accepted: 11/26/2019] [Indexed: 01/31/2023] Open
Abstract
AIMS Antithrombin III (AT-III) concentrates have been used to prevent critical thrombosis in the immediate post-liver transplantation period without clear evidence regarding the optimal dose or administration scheme. The relationship between the AT-III dosage and the plasma activity levels during the period was evaluated in this study. METHODS The plasma AT-III activity levels and clinical data obtained from patients who received liver transplantation from January 2017 to September 2018 were retrospectively analysed. A population pharmacokinetic (PK) model was developed using nonlinear mixed-effects method and externally validated thereafter. Several dosing scenarios were simulated to maintain the plasma AT-III activity level within the normal range using the developed PK model to search for an optimal AT-III dosing regimen. RESULTS The plasma AT-III activity levels were best described by a single compartment model with first order elimination kinetics. The recovery of endogenous AT-III level during the postoperative days was modelled using an Emax model. The typical values (95% confidence interval) of volume of distribution and clearance were 3.86 (3.40-4.32) L, and 0.129 (0.111-0.147) L h-1 , respectively. Serum albumin and body weight had significant effect on clearance and were included in the model. External validation of the proposed model demonstrated adequate prediction performance. Furthermore, simulation of previously suggested or modified dosing scenarios showed successful maintenance of AT-III activity level within the normal range. CONCLUSION A population PK model of AT-III concentrate was developed using data from liver recipients. Dosing scenarios simulated in our study may help establish a practical guide for AT-III concentrate titration after liver transplantation.
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Affiliation(s)
- Bo Rim Kim
- Departments of Anesthesiology & Pain Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Jaeseong Oh
- Clinical Pharmacology & Therapeutics, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Kyung-Sang Yu
- Clinical Pharmacology & Therapeutics, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Ho Geol Ryu
- Departments of Anesthesiology & Pain Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea
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Downey L, Faraoni D. Antithrombin Supplementation in Infants Undergoing Cardiac Surgery: A New Piece of a Complex Puzzle. J Cardiothorac Vasc Anesth 2019; 33:403-405. [DOI: 10.1053/j.jvca.2018.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Indexed: 11/11/2022]
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