1
|
Pare A, Kippen L, Wagg C, Longmore M, Boysen S. Comparison of four different hematocrit assays and the effect of albumin on their measurements. Front Vet Sci 2022; 9:937328. [PMID: 36090165 PMCID: PMC9449412 DOI: 10.3389/fvets.2022.937328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/27/2022] [Indexed: 11/13/2022] Open
Abstract
Clinical decisions are influenced by hematocrit values. Centrifugation (reference standard), conductivity, optical and impedance methods are often used interchangeably to measure hematocrit. The effects of albumin, which are known to affect conductivity methods, have not been evaluated for limits of agreement (LOA) between hematocrit assays in small animals. Canine venous blood was collected from 74 clinical cases and measured by centrifugation (n = 72), conductivity (n = 73), impedance (n = 24) and optical (n = 50) methods. Bland-Altman analysis determined bias (± SD) and 95% LOA between methods. There was a statistically significant difference between centrifugation hematocrit values and values obtained via conductivity (p < 0.0001), optical (p < 0.0001), and impedance (p = 0.0082) methods. The conductivity method underestimated hematocrit by 2.1 ± 2.9% (95% LOA −3.54 to 7.88), the optical method by 3.1 ± 3.6% (95% LOA −4.0 to 10.2), and the impedance method by 2.3 ± 3.7% (95% LOA −5 to 9.6) when compared to centrifuged hematocrit values. The hematocrit difference between conductivity and centrifugation methods was statistically different for low (4%, 0–5%), within reference limits (3%, −5 to 8%), and high (2%, −2 to 5%) albumin values, respectively (p = 0.02), with post-hoc analysis demonstrating that the difference occurred between the low and high albumin groups. This study confirms that albumin values outside reference limits can affect the conductivity method and that hematocrit values obtained via conductivity, optical and impedance methods underestimate values obtained via centrifugation. Therefore, the hematocrit methods cannot be used interchangeably. The wide limits of agreement also demonstrates that care must be taken when making clinical decisions with different hematocrit methodologies.
Collapse
Affiliation(s)
- Amelie Pare
- Department of Internal Medicine, Western Veterinary Specialist & Emergency Centre–VCA, Calgary, AB, Canada
- *Correspondence: Amelie Pare
| | - Laura Kippen
- Department of Emergency Care, Central Victoria Veterinary Hospital–VCA, Victoria, BC, Canada
| | - Catherine Wagg
- Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Matt Longmore
- Department of Emergency Care, Western Veterinary Specialist & Emergency Centre–VCA, Calgary, AB, Canada
| | - Soren Boysen
- Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| |
Collapse
|
2
|
Verma S, Rawat S, Ho K, Wagg C, Zhang L, Oudit G, Marx N, Mayoux E, Lopaschuk GD. P1267Empagliflozin prevention of heart failure development in diabetes is associated with an improvement in cardiac energy producition. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- S Verma
- St. Michael's Hospital, Surgery, Toronto, Canada
| | - S Rawat
- University of Alberta, Pediatrics, Edmonton, Canada
| | - K Ho
- University of Alberta, Pediatrics, Edmonton, Canada
| | - C Wagg
- University of Alberta, Pediatrics, Edmonton, Canada
| | - L Zhang
- University of Alberta, Pediatrics, Edmonton, Canada
| | - G Oudit
- University of Alberta, Pediatrics, Edmonton, Canada
| | - N Marx
- RWTH University Aachen, Aachen, Germany
| | - E Mayoux
- Boehringer-Ingelheim, Ingeheim am Rhein, Germany
| | | |
Collapse
|
3
|
Goggs R, Borrelli A, Brainard BM, Chan DL, de Laforcade A, Goy-Thollot I, Jandrey KE, Kristensen AT, Kutter A, Marschner CB, Rannou B, Sigrist N, Wagg C. Multicenter in vitro thromboelastography and thromboelastometry standardization. J Vet Emerg Crit Care (San Antonio) 2018; 28:201-212. [DOI: 10.1111/vec.12710] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/22/2017] [Accepted: 03/30/2017] [Indexed: 11/27/2022]
Affiliation(s)
- Robert Goggs
- Department of Clinical Sciences, College of Veterinary Medicine; Cornell University; Ithaca NY
| | - Antonio Borrelli
- Department of Veterinary Science; University of Turin; Grugliasco Italy
| | | | - Daniel L. Chan
- Department of Clinical Sciences and Services; Royal Veterinary College; London UK
| | | | | | | | | | - Annette Kutter
- Vetsuisse Faculty; University of Zurich; Zurich Switzerland
| | - Clara B. Marschner
- Department of Veterinary Clinical and Animal Sciences; University of Copenhagen; Denmark
| | - Benoît Rannou
- VetAgro Sup; Campus Vétérinaire de Lyon; Marcy l′Étoile France
| | - Nadja Sigrist
- Vetsuisse Faculty; University of Zurich; Zurich Switzerland
| | | |
Collapse
|
4
|
Frederick J, Boysen S, Wagg C, Chalhoub S. The effects of oral administration of Yunnan Baiyao on blood coagulation in beagle dogs as measured by kaolin-activated thromboelastography and buccal mucosal bleeding times. Can J Vet Res 2017; 81:41-45. [PMID: 28154462 PMCID: PMC5220596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 07/04/2016] [Indexed: 06/06/2023]
Abstract
We examined the effects of oral administration of Yunnan Baiyao (YB) on hemostasis by measuring buccal mucosal bleeding times (BMBTs) and doing citrated kaolin-activated whole-blood thromboelastography (TEG). In a randomized controlled crossover trial 8 beagle dogs were given either placebo or 1000 mg of YB orally every 12 h for 5 consecutive treatments. Blood was drawn 24 h before treatment and 2 and 24 h after the last treatment, and the BMBT was measured in each sample in duplicate. The TEG analysis was done in duplicate 60 ± 5 min after sample collection. There were no adverse effects of treatment and no significant differences between the control and treatment BMBTs or TEG parameters at any time point. Significant differences were found between baseline and 24 h after the last treatment within the treatment group for the TEG parameters LY30 and LY60 and within the control group for the TEG parameters MA, G, LY30, and LY60. Thus, at the dose and frequency of administration in this study YB did not appear to have any clinically significant effects on the measured coagulation parameters. The differences within the treatment group were likely due to analytic error since similar differences were seen in the control group. Further studies with a larger sample, as well as more direct measures of platelet function, are needed.
Collapse
Affiliation(s)
| | - Søren Boysen
- Address all correspondence to Dr. Søren Boysen; e-mail:
| | | | | |
Collapse
|
5
|
Mizen K, Woodman J, Boysen SR, Wagg C, Greco-Otto P, Léguillette R, Roy MF. Effect of Dexamethasone on Resting Blood Lactate Concentrations in Horses. J Vet Intern Med 2016; 31:164-169. [PMID: 28019037 PMCID: PMC5259638 DOI: 10.1111/jvim.14630] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 09/12/2016] [Accepted: 11/08/2016] [Indexed: 11/28/2022] Open
Abstract
Background Blood lactate concentration is a marker of tissue perfusion and helps guide therapeutic interventions in critically ill horses. In both humans and dogs, administration of corticosteroids can increase blood lactate concentration, leading to type B hyperlactatemia. This effect could be a consequence of the impact of corticosteroids on glucose metabolism. Objectives To investigate the effects of daily IM dexamethasone administration on blood lactate and glucose concentrations in horses. Animals Nine healthy adult horses. Methods A randomized, blinded, controlled, cross‐over study design was used. Horses were randomly assigned to 1 of 2 groups, either receiving 0.05 mg/kg of dexamethasone IM or an equivalent volume of saline, daily for 7 days. Blood was collected to determine lactate and glucose concentrations at baseline, 2 hours after the daily injections and 24 hours after the last injection. Results Dexamethasone treatment had a statistically significant effect on lactate (P = .006) and glucose (P = .033) concentrations. The least squares mean lactate concentration was 0.93 mmol/L (95% CI: 0.87–0.99) in the dexamethasone group compared to 0.71 mmol/L (95% CI: 0.70–0.73) for the saline group. A positive relationship between blood lactate and glucose concentrations was identified, with a 0.07 mmol/L (95% CI: 0.05–0.09) increase in lactate concentration per unit increase in glucose (P < .0001) concentration. Conclusions and Clinical Importance Dexamethasone induces statistically significant increases in blood lactate and glucose concentrations in healthy horses. Awareness of the potential for corticosteroids to induce type B hyperlactatemia might be important in the management of critically ill horses receiving dexamethasone.
Collapse
Affiliation(s)
- K Mizen
- Northside Veterinary Clinic, Lethbridge, AB, Canada
| | - J Woodman
- Alpine Pet Hospital, Calgary, AB, Canada
| | - S R Boysen
- Faculty of Veterinary Medicine, Department of Veterinary Clinical and Diagnostic Sciences, University of Calgary, Calgary, AB, Canada
| | - C Wagg
- Faculty of Veterinary Medicine, Department of Veterinary Clinical and Diagnostic Sciences, University of Calgary, Calgary, AB, Canada
| | - P Greco-Otto
- Faculty of Veterinary Medicine, Department of Veterinary Clinical and Diagnostic Sciences, University of Calgary, Calgary, AB, Canada
| | - R Léguillette
- Faculty of Veterinary Medicine, Department of Veterinary Clinical and Diagnostic Sciences, University of Calgary, Calgary, AB, Canada
| | - M-F Roy
- Faculty of Veterinary Medicine, Department of Veterinary Clinical and Diagnostic Sciences, University of Calgary, Calgary, AB, Canada
| |
Collapse
|
6
|
Wang W, Zhang L, Wagg C, Alrob O, Fillmore N, Wang S, Dyck J, Lopaschuk G. OPTIMIZATION OF CARDIAC ENERGY METABOLISM BY MALONYL COA DECARBOXYLASE INHIBITOR IMPROVES CARDIAC FUNCTION POST MYOCARDIAL INFARCTION IN RATS. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
7
|
Abstract
Diagnosis of equine hyperinsulinemia requires an accurate method for quantification of equine insulin concentrations. The objectives of the current study were to compare 2 commercially available techniques for measurement of equine insulin, the radioimmunoassay (RIA) and chemiluminescent immunoassay (CIA). Recovery was poor for both assays, but worse for the CIA. Serial dilution of a high endogenous insulin sample yielded better linearity for the RIA ( r2 = 0.99, P < 0.001) than the CIA ( r2 = 0.92, P = 0.009). Bland–Altman analysis indicated that the CIA was, on average, 91 pmol/l higher than the RIA, with wide limits of agreement (95% limits of agreement: –508 to 691 pmol/l). These findings suggest that results between the assays should not be considered interchangeable.
Collapse
Affiliation(s)
- Heidi E. Banse
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK (Banse, McCann, Yang, McFarlane)
- Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada (Wagg)
| | - Joseph McCann
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK (Banse, McCann, Yang, McFarlane)
- Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada (Wagg)
| | - Fan Yang
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK (Banse, McCann, Yang, McFarlane)
- Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada (Wagg)
| | - Catherine Wagg
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK (Banse, McCann, Yang, McFarlane)
- Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada (Wagg)
| | - Dianne McFarlane
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK (Banse, McCann, Yang, McFarlane)
- Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada (Wagg)
| |
Collapse
|
8
|
McMichael M, Goggs R, Smith S, Wagg C, Warman S, Wiinberg B. Systematic evaluation of evidence on veterinary viscoelastic testing Part 1: System comparability. J Vet Emerg Crit Care (San Antonio) 2014; 24:23-9. [DOI: 10.1111/vec.12143] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 11/16/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Maureen McMichael
- Department of Veterinary Clinical Medicine; College of Veterinary Medicine
| | - Robert Goggs
- University of Illinois; Urbana IL
- Department of Clinical Sciences; College of Veterinary Medicine; Cornell University; Ithaca NY
| | | | | | - Sheena Warman
- School of Clinical Veterinary Science; University of Bristol; Bristol UK
| | | |
Collapse
|
9
|
Singh K, Shukla P, Quan A, Lovren F, Pan Y, Wagg C, Teoh H, Lopaschuk G, Verma S. Regulating Cardiac Energy Metabolism and Bioenergetics by Targeting the DNA Damage Repair Protein BRCA1. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
10
|
Azam M, Wagg C, Massé S, Farid T, Lai P, Kusha M, Asta J, Lopaschuk G, Nanthakumar K. 467 Metabolic Modulation for the Management of Cardiac Systolic Dysfunction Following Ventricular Fibrillation Resuscitation. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|