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Kornya MR, Abrams-Ogg ACG, Blois SL, Wood RD. Investigation of Platelet Function Analyzer 200 platelet function measurements in healthy cats and cats receiving clopidogrel. J Vet Diagn Invest 2023; 35:664-670. [PMID: 37646490 PMCID: PMC10621536 DOI: 10.1177/10406387231197440] [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: 09/01/2023] Open
Abstract
The Platelet Function Analyzer 200 (PFA-200; Siemens) is an in vitro substitute for in vivo bleeding time that is designed to investigate platelet function in a more physiologic manner than traditional aggregometry. The analyzer reports a closure time (CT) as a marker of platelet function, and may also report the calculated platelet function measurement primary hemostasis components, PHC1 and PHC2. These incorporate the measured total volume (TV) of blood aspirated and the initial flow rate (IF). We determined, for the COL/ADP and P2Y cartridges, the median total volume (TVmedian), and RIs for CT, IF, TV, PHC1, and PHC2, and investigated the sensitivity and specificity of those parameters at the determined interpretation thresholds in determination of the clopidogrel effect. Healthy client-owned cats were recruited prospectively to determine RIs for CT, IF, TV, PHC1, and PHC2. Healthy blood-donor cats and cats on clopidogrel therapy were included retrospectively to determine test performance. In 20 healthy cats, RIs for COL/ADP were CT (19.5-87.2 s), IF (199-278 µL/min), TV (199-332 µL), PHC1 (94-106%), and PHC2 (52-148%); and for P2Y, CT (4.2-94.3 s), IF (112-208 µL/min), TV (151-294 µL), PHC1 (35-178%), and PHC2 (90-109%). CVs were calculated for all of these values. Specificity for detection of the clopidogrel effect was calculated from a group of healthy blood donors, and sensitivity for detection of the clopidogrel effect from a group of cats with known clopidogrel effect. Sensitivity and specificity were, for COL/ADP: CT (83.3%, 66.6%), IF (41.4%, 83.3%), TV (83.3%, 100%), PHC1 (100%, 100%) and PHC2 (100%, 83.3%); and for P2Y: CT (100%, 94.4%), IF (30%, 44.4%), TV (100%, 94.4%), PHC1 (100%, 100%), and PHC2 (100%, 97.7%). These PFA-200 values may be beneficial in the determination of platelet function in cats.
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Affiliation(s)
- Matthew R. Kornya
- Departments of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Anthony C. G. Abrams-Ogg
- Departments of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Shauna L. Blois
- Departments of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - R. Darren Wood
- Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
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Taylor S, St Denis K, Collins S, Dowgray N, Ellis SLH, Heath S, Rodan I, Ryan L. 2022 ISFM/AAFP Cat Friendly Veterinary Environment Guidelines. J Feline Med Surg 2022; 24:1133-1163. [PMID: 36259498 PMCID: PMC10845436 DOI: 10.1177/1098612x221128763] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PRACTICAL RELEVANCE The '2022 ISFM/AAFP Cat Friendly Veterinary Environment Guidelines' (hereafter the 'Cat Friendly Veterinary Environment Guidelines') describe how the veterinary clinic environment can be manipulated to minimise feline patient distress. Many components of a veterinary clinic visit or stay may result in negative experiences for cats. However, much can be done to improve a cat's experience by making the veterinary clinic more cat friendly. Exposure to other cats and other species can be reduced, and adjustments made with consideration of the feline senses and species-specific behaviour. Caregivers can prepare cats for a clinic visit with appropriate advice. Waiting rooms, examination rooms, hospital wards and other clinic areas can be designed and altered to reduce stress and hence encourage positive emotions. Changes need not be structural or expensive in order to be effective and make a difference to the cats and, in turn, to cat caregivers and the veterinary team. Moreover, by improving the all-round experience at the veterinary clinic, there are positive effects on preventive healthcare, identification of and recovery from illness, and compliance with treatment. CLINICAL CHALLENGES Good feline healthcare necessitates visiting the veterinary clinic, which, simply by being outside of a cat's territory and familiar surroundings, may lead to negative experiences. Such experiences can trigger negative (protective) emotions and associated physiological stress, which can result in misleading clinical findings, patient distress, prolonged recovery from illness, further difficulties with handling at subsequent visits and potential veterinary personnel injury. There may be a mistaken belief that veterinary clinics must undergo significant renovation or building work to become cat friendly, and that, if species cannot be separated, then clinics cannot improve their care of cats. These Guidelines aim to dispel any such misconceptions and provide detailed practical advice. EVIDENCE BASE These Guidelines have been created by a Task Force of experts convened by the International Society of Feline Medicine and American Association of Feline Practitioners, based on an extensive literature review and, where evidence is lacking, the authors' experience. Endorsements: These Guidelines have been endorsed by a number of groups and organisations, as detailed on page 1161 and at icatcare.org/cat-friendly-guidelines and catvets.com/environment.
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Affiliation(s)
- Samantha Taylor
- International Society of Feline Medicine, International Cat Care, Tisbury, Wiltshire, UK
| | - Kelly St Denis
- St Denis Veterinary Professional Corporation, Powassan, Ontario, Canada
| | - Sarah Collins
- International Society of Feline Medicine, International Cat Care, Tisbury, Wiltshire, UK
| | - Nathalie Dowgray
- International Society of Feline Medicine, International Cat Care, Tisbury, Wiltshire, UK
| | | | - Sarah Heath
- Behavioural Referrals Veterinary Practice, Chester, UK
| | - Ilona Rodan
- Cat Behavior Solutions, Cat Care Clinic, Madison, WI, USA
| | - Linda Ryan
- Inspiring Pet Teaching, Fordingbridge, Hampshire, UK
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Hematological Parameters from the Feline Blood Donor to the Blood Unit: What Changes Are to Be Expected? Animals (Basel) 2022; 12:ani12141819. [PMID: 35883366 PMCID: PMC9312296 DOI: 10.3390/ani12141819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 11/24/2022] Open
Abstract
Simple Summary Feline blood donation requires sedation to allow for good blood collection, avoiding venous damage and unnecessary donor stress. In the present study, we describe the variation of hematological parameters in a population of healthy blood-donor cats that underwent the same sedation protocol, including medetomidine, alfaxalone, and butorphanol. Significant differences in hematological parameters were observed between unsedated and sedated cats; particularly, the mean red blood cell count, hemoglobin concentration, hematocrit value, mean corpuscular volume, and red blood cells distribution width were significantly lower in sedated cats than in conscious ones, thus confirming that sedation is a critical procedure in cats. No significant differences for the main hematological parameters were observed between sedated cats and feline blood units, suggesting that the dilution with the conservative–anticoagulant solution (ratio 1:7) exerts negligible effects on these parameters with respect to samples of sedated animals. Abstract Feline blood donation requires sedation to allow for good blood collection, avoiding venous damage and unnecessary donor stress. In the present study, we describe the variation of hematological parameters in a population of 74 healthy blood-donor cats that underwent the same sedation protocol, including medetomidine, alfaxalone, and butorphanol. Changes in hematological parameters were evaluated in blood samples collected from conscious cats (group A), sedated cats (group B), and feline whole-blood units (FBUs) (group C). Significant differences were observed between unsedated and sedated cats: the mean RBC count, HGB, HCT, and RDW were significantly lower in sedated cats than in conscious ones, with a difference of 17.95%, 18.42%, 28.21%, and 10.00%, respectively. In accordance with previously reported data, our results confirm that sedation is a critical procedure in cats that can affect most of the hematological parameters. The second finding of our study is that no significant differences for the main hematological parameters were observed between sedated cats and FBUs, thus suggesting that the dilution with the conservative–anticoagulant solution exert negligible effects on these parameters with respect to samples of sedated animals. This hematological change must be taken into consideration since such parameters are important to define the quality of FBUs.
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Natale A, Mazzotta E, Mason N, Ceglie L, Mion M, Stefani A, Fincato A, Bonfante F, Bortolami A, Monne I, Bellinati L, Guadagno C, Quaranta E, Pastori A, Terregino C. SARS-Cov-2 Natural Infection in a Symptomatic Cat: Diagnostic, Clinical and Medical Management in a One Health Vision. Animals (Basel) 2021; 11:1640. [PMID: 34205893 PMCID: PMC8227534 DOI: 10.3390/ani11061640] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023] Open
Abstract
Despite the reported increase in SARS-CoV-2-infected pets, the description of the clinical features from natural infection and the medical follow up in symptomatic pets is still not sufficiently documented. This study reports the case of an indoor cat that displayed respiratory signs and a gastrointestinal syndrome, following the COVID-19 diagnosis of his owners. Thoracic radiographies were suggestive of bronchial pneumonia, while blood tests were indicative of a mild inflammatory process. Nasal and oropharyngeal swabs tested positive through RT-qPCR assays targeting SARS-CoV-2 genes 14 days after his owners tested positive for the virus. Nasal swabs persisted to be RT-qPCR positive after 31 days. Serology confirmed the presence of antibodies through ELISA, electrochemiluminescence analysis and plaque reduction neutralization test, recording a high antibody titre after 31 days. The cat improved after medical treatment and clinically recovered. This study suggests that exposure to SARS-CoV-2 could lead to a natural infection with bronchial pneumonia in cats along with a possible prolonged persistence of SARS-CoV-2 RNA in the upper airways, albeit at a low level. The cat developed neutralizing antibodies, reaching a high titre after 31 days. Further descriptions of SARS-CoV-2 naturally infected pets, their medical management and diagnostic findings would be useful to enhance knowledge about COVID-19 in susceptible animals.
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Affiliation(s)
- Alda Natale
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Elisa Mazzotta
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
- Department of Animal Medicine, Productions and Health (MAPS), University of Padova, 35020 Legnaro, Italy
| | | | - Letizia Ceglie
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Monica Mion
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Annalisa Stefani
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Alice Fincato
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Alessio Bortolami
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Laura Bellinati
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | | | - Erika Quaranta
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Ambra Pastori
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
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Arnold JE, Camus MS, Freeman KP, Giori L, Hooijberg EH, Jeffery U, Korchia J, Meindel MJ, Moore AR, Sisson SC, Vap LM, Cook JR. ASVCP Guidelines: Principles of Quality Assurance and Standards for Veterinary Clinical Pathology (version 3.0): Developed by the American Society for Veterinary Clinical Pathology's (ASVCP) Quality Assurance and Laboratory Standards (QALS) Committee. Vet Clin Pathol 2020; 48:542-618. [PMID: 31889337 DOI: 10.1111/vcp.12810] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Melinda S Camus
- Department of Pathology, University of Georgia College of Veterinary Medicine, Athens, GA, USA
| | | | - Luca Giori
- Department of Biomedical and Diagnostic Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, USA
| | - Emma H Hooijberg
- Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa
| | - Unity Jeffery
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Jérémie Korchia
- Texas A&M Veterinary Medical Diagnostic Laboratory, College Station, TX, USA
| | | | - A Russell Moore
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Sandra C Sisson
- Cornell University College of Veterinary Medicine, Ithaca, NY, USA
| | - Linda M Vap
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
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