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TLR4 and MD2 variation among horses with differential TNFα baseline concentrations and response to intravenous lipopolysaccharide infusion. Sci Rep 2023; 13:1486. [PMID: 36707633 PMCID: PMC9883502 DOI: 10.1038/s41598-023-27956-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/10/2023] [Indexed: 01/28/2023] Open
Abstract
Gram-negative bacterial septicemia is mediated through binding of lipopolysaccharide (LPS) to mammalian toll-like receptor protein 4 (TLR4). TLR4 and its cognate protein, myeloid differentiation factor 2 (MD2) form a heterodimeric complex after binding LPS. This complex induces a cascade of reactions that results in increased proinflammatory cytokine gene expression, including TNFα, which leads to activation of innate immunity. In horses, the immune response to LPS varies widely. To determine if this variation is due to differences in TLR4 or MD2, DNA from 15 healthy adult horses with different TNFα dynamics after experimental intravenous LPS infusion was sequenced across exons of TLR4 and MD2. Haplotypes were constructed for both genes using all identified variants. Four haplotypes were observed for each gene. No significant associations were found between either TNFα baseline concentrations or response to LPS and haplotype; however, there was a significant association (P value = 0.0460) between the baseline TNFα concentration and one MD2 missense variant. Three-dimensional structures of the equine TLR4-MD2-LPS complex were built according to haplotype combinations observed in the study horses, and the implications of missense variants on LPS binding were modeled. Although the sample size was small, there was no evidence that variation in TLR4 or MD2 explains the variability in TNFα response observed after LPS exposure in horses.
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Leise BS, Fugler LA. Laminitis Updates: Sepsis/Systemic Inflammatory Response Syndrome-Associated Laminitis. Vet Clin North Am Equine Pract 2021; 37:639-656. [PMID: 34782098 DOI: 10.1016/j.cveq.2021.08.003] [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: 10/19/2022] Open
Abstract
Sepsis or systemic inflammatory response syndrome (SIRS) -associated laminitis is a sequela to primary inflammatory conditions (eg, colitis, ischemic intestinal injury, pneumonia, metritis) and results from a dysregulated systemic inflammatory response that ultimately affects the digital lamellae. Local chemokine production, leukocyte migration, and proinflammatory mediator production occur within the lamellae that can lead to catastrophic lamellar failure. Controlling the primary disease, providing supportive care and anti-inflammatory therapy, applying digital cryotherapy, and providing mechanical support are cornerstones to the prevention of sepsis/SIRS-associated laminitis. Novel therapies targeting specific signaling pathways may provide additional therapeutic options in the future.
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Affiliation(s)
- Britta Sigrid Leise
- Department of Veterinary Clinical Sciences, Louisiana State University, School of Veterinary Medicine, Baton Rouge, LA 70803, USA.
| | - Lee Ann Fugler
- Department of Veterinary Clinical Sciences, Louisiana State University, School of Veterinary Medicine, Baton Rouge, LA 70803, USA
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3
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Hernández-Avalos I, Flores-Gasca E, Mota-Rojas D, Casas-Alvarado A, Miranda-Cortés AE, Domínguez-Oliva A. Neurobiology of anesthetic-surgical stress and induced behavioral changes in dogs and cats: A review. Vet World 2021; 14:393-404. [PMID: 33776304 PMCID: PMC7994130 DOI: 10.14202/vetworld.2021.393-404] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/08/2021] [Indexed: 12/14/2022] Open
Abstract
The anesthetic-surgical stress response consists of metabolic, neuroendocrine, hemodynamic, immunological, and behavioral adaptations through chemical mediators such as the adrenocorticotropic hormone, growth hormone, antidiuretic hormone, cortisol, aldosterone, angiotensin II, thyroid-stimulating hormone, thyroxine, triiodothyronine, follicle-stimulating hormone, luteinizing hormone, catecholamines, insulin, interleukin (IL)-1, IL-6, tumor necrosis factor-alpha, and prostaglandin E-2. Behavioral changes include adopting the so-called prayer posture, altered facial expressions, hyporexia or anorexia, drowsiness, sleep disorders, restriction of movement, licking or biting the injured area, and vocalizations. Overall, these changes are essential mechanisms to counteract harmful stimuli. However, if uncontrolled surgical stress persists, recovery time may be prolonged, along with increased susceptibility to infections in the post-operative period. This review discusses the neurobiology and most relevant organic responses to pain and anesthetic-surgical stress in dogs and cats. It highlights the role of stress biomarkers and their influence on autonomous and demeanor aspects and emphasizes the importance of understanding and correlating all factors to provide a more accurate assessment of pain and animal welfare in dogs and cats throughout the surgical process.
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Affiliation(s)
- I Hernández-Avalos
- Department of Biological Sciences, Clinical Pharmacology and Veterinary Anesthesia, Faculty of Higher Studies Cuautitlán, Universidad Nacional Autónoma de México, State of Mexico 54714, Mexico
| | - E Flores-Gasca
- Department of Veterinary Surgery, Faculty of Higher Studies Cuautitlán, Universidad Nacional Autónoma de México, State of Mexico 54714, Mexico
| | - D Mota-Rojas
- Neurophysiology of Pain, Behavior and Assessment of Welfare in Domestic Animals, DPAA, Universidad Autónoma Metropolitana, Mexico City 04960, Mexico
| | - A Casas-Alvarado
- Master in Agricultural Sciences. Animal Welfare, Universidad Autónoma Metropolitana, Mexico City 04960, Mexico
| | - A E Miranda-Cortés
- Department of Biological Sciences, Clinical Pharmacology and Veterinary Anesthesia, Faculty of Higher Studies Cuautitlán, Universidad Nacional Autónoma de México, State of Mexico 54714, Mexico
| | - A Domínguez-Oliva
- Department of Biological Sciences, Clinical Pharmacology and Veterinary Anesthesia, Faculty of Higher Studies Cuautitlán, Universidad Nacional Autónoma de México, State of Mexico 54714, Mexico
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Perez-Ecija A, Buzon-Cuevas A, Aguilera-Aguilera R, Gonzalez-De Cara CA, Mendoza FJ. Blood Storage Conditions Affect Hematological Analysis in Samples From Healthy Donkeys and Donkeys With Experimentally-Induced Endotoxemia. Front Vet Sci 2020; 7:640. [PMID: 33134340 PMCID: PMC7511718 DOI: 10.3389/fvets.2020.00640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/05/2020] [Indexed: 11/13/2022] Open
Abstract
Preanalytical factors such as storage time and temperature are proved to induce marked artifactual changes in hematological parameters in horses, small animals and humans. These errors can mirror findings typical of endotoxemia, leading to dangerous misdiagnosis. Since donkeys are common in warm climates and remote regions, blood samples from this species can be subjected to long lasting travels from the farm to the nearest laboratory, frequently under suboptimal conditions. Moreover, as other equids, donkeys are prone to suffer endotoxemia. Nonetheless, stability has not been evaluated in samples for hematology in this species. The aim of this study was to characterize the effect of temperature and storage time in hematological parameters from healthy donkeys and donkeys with induced endotoxemia. Blood samples were collected from six healthy female Andalusian donkeys and stored for 6, 12, 24, and 48 h at several temperatures (4, 24, and 35°C). Endotoxemia was induced in the same animals by an intravenous LPS infusion and samples obtained 30 min post-infusion were handled similarly. Hematological analysis was performed using a laser-based analyzer and blood smear examination. Storage at 24°C caused significant neutropenia after 48 h as well as morphological changes typical of endotoxemia in blood from healthy donkeys as soon as 24 h post-storage. Samples kept at 35°C displayed more profound and earlier artifactual variations. Conservation at 4°C did not cause any significant change in blood parameters. Prolonged (48 h) storage of samples from animals with induced endotoxemia at 24 and 35°C accentuated pre-existing leukopenia and neutropenia. These findings highlight that donkey samples should be stored at 4°C, instead of 24°C as recommended for horses. Moreover, blood smear interpretation should be cautious in samples stored for longer than 24 h and could be misleading when blood is kept at 35°C.
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Affiliation(s)
| | - Antonio Buzon-Cuevas
- Department of Animal Medicine and Surgery, University of Cordoba, Cordoba, Spain
| | | | | | - Francisco J Mendoza
- Department of Animal Medicine and Surgery, University of Cordoba, Cordoba, Spain
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Lilliehöök I, Bröjer J, Nostell K, Kindahl H, Tvedten HW, Edner A, Hagman R. Hematologic, prostaglandin F 2α -metabolite, serum amyloid A, and serum iron changes in horses with experimentally induced endotoxemia. Vet Clin Pathol 2020; 49:319-325. [PMID: 32539184 DOI: 10.1111/vcp.12870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 11/18/2019] [Accepted: 11/19/2019] [Indexed: 12/01/2022]
Abstract
BACKGROUND Endotoxemia is a common and severe disease of horses. Most previous studies have monitored changes caused by a bolus dose of endotoxin over short time periods. OBJECTIVES We aimed to describe inflammatory responses to endotoxin with inflammatory and hematologic markers monitored over a longer time than has been performed in the past using more prolonged endotoxin exposures. METHODS Escherichia coli O55:B5 endotoxin was administered as a 6-hour continuous intravenous infusion of lipopolysaccharide (LPS) to eight horses. Blood cell counts, and prostaglandin F2α -metabolite (PGM), serum amyloid A (SAA), and serum total iron concentrations were monitored for up to 3 or 6 days. RESULTS An immediate and severe decrease in neutrophils and monocytes occurred in all horses, which subsequently changed to a moderate to strong neutrophilia and monocytosis that persisted for more than 78 hours postinfusion (PI) of LPS. Lymphocyte and eosinophil numbers decreased gradually and then normalized after 66- and 78-hours PI, respectively. Mild to moderate, biphasic thrombocytopenia occurred. A pronounced, transient increase in PGM occurred between 1 and 7 hours, peaking at 2 hours. Serum amyloid A began to increase after 6 hours PI and remained elevated after 72 hours PI. Serum iron was decreased between 6 and 48 hours. The clinical signs were most prominent during the first 24 hours PI and subsided within 48 hours PI. CONCLUSIONS Neutrophilia, monocytoses, and high SAA concentrations were present in horses even after the clinical signs had subsided. Serum iron normalized before SAA. Knowledge of these findings is imperative when interpreting laboratory results in horses with possible endotoxin exposure.
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Affiliation(s)
- Inger Lilliehöök
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden.,University Animal Hospital, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Johan Bröjer
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Katarina Nostell
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Hans Kindahl
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Harold W Tvedten
- University Animal Hospital, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Anna Edner
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ragnvi Hagman
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
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Mendoza Garcia FJ, Gonzalez-De Cara C, Aguilera-Aguilera R, Buzon-Cuevas A, Perez-Ecija A. Meloxicam ameliorates the systemic inflammatory response syndrome associated with experimentally induced endotoxemia in adult donkeys. J Vet Intern Med 2020; 34:1631-1641. [PMID: 32463537 PMCID: PMC7379049 DOI: 10.1111/jvim.15783] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 04/03/2020] [Accepted: 04/03/2020] [Indexed: 11/26/2022] Open
Abstract
Background Little information is available about endotoxemia in donkeys. Characterizing the systemic inflammatory response (SIRS) to lipopolysaccharide (LPS) in donkeys would provide valuable clinical and therapeutic information. The effects of meloxicam on endotoxemia have not been studied in this species. Objectives To study the pathophysiology and gene expression associated with experimentally induced endotoxemia, and evaluate the effects of meloxicam on experimentally induced endotoxemia in donkeys and in equine monocyte cultures. Animals Six healthy adult female donkeys. Methods Endotoxemia was induced by an IV infusion of LPS for 30 minutes. Animals either received 20 mL of saline or 0.6 mg/kg of meloxicam IV after LPS infusion. The experiments lasted 6 hours. Blood samples were collected serially for hematology, serum biochemistry, interleukin measurement, and leukocyte gene expression analysis. Vital signs were recorded throughout the study. Monocyte cultures were used to test the effects of meloxicam on LPS‐activated monocytes. Results Lipopolysaccharide induced fever, leukopenia, and neutropenia of similar magnitude in both groups, but meloxicam attenuated increases in plasma lactate, tumor necrosis factor‐alpha (TNFα), and interleukin 1β concentrations compared to controls. No differences were detected between groups for cytokine mRNA expression. Furthermore, meloxicam decreased TNFα release in LPS‐activated monocyte cultures. Conclusions and Clinical Importance Meloxicam could be a feasible option for the treatment of endotoxemia and SIRS in donkeys. Additional studies are necessary to investigate possible meloxicam‐related posttranscriptional regulation and to compare this drug with other nonsteroidal anti‐inflammatory drugs (NSAIDs) in animals with endotoxemia.
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Affiliation(s)
- Francisco Javier Mendoza Garcia
- Department of Animal Medicine and Surgery, University of Cordoba, Campus Rabanales, Road Madrid-Cadiz km 396, 14104, Cordoba, Spain
| | - Carlos Gonzalez-De Cara
- Department of Animal Medicine and Surgery, University of Cordoba, Campus Rabanales, Road Madrid-Cadiz km 396, 14104, Cordoba, Spain
| | | | - Antonio Buzon-Cuevas
- Department of Animal Medicine and Surgery, University of Cordoba, Campus Rabanales, Road Madrid-Cadiz km 396, 14104, Cordoba, Spain
| | - Alejandro Perez-Ecija
- Department of Animal Medicine and Surgery, University of Cordoba, Campus Rabanales, Road Madrid-Cadiz km 396, 14104, Cordoba, Spain
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7
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Werners AH. Treatment of endotoxaemia and septicaemia in the equine patient. J Vet Pharmacol Ther 2016; 40:1-15. [PMID: 27452161 DOI: 10.1111/jvp.12329] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 05/02/2016] [Indexed: 12/27/2022]
Abstract
Endotoxins, constituents of the cell wall of gram-positive and gram-negative bacteria, regularly result in severe illness and death in horses. In endotoxaemia, these constituents are present in the systemic circulation; in septicaemia, whole microbes invade normally sterile parts of the body. Interaction of these endotoxins with pathogen recognition receptors leads to an inflammatory response that cannot always be sufficiently contained and hence needs direct treatment. Over the last decennia, our understanding of the pathophysiology of endotoxaemia and septicaemia has significantly increased. Based on improved understanding of the interaction between receptors and endotoxins as well as the subsequent downstream signalling pathways, new therapeutic targets have been identified in laboratory animal species and humans. Important species differences in the recognition of endotoxins and pathogens by their receptors as well as the inflammatory response to receptor activation hamper extrapolation of this information to the horse (and other species). Historically, horses with endotoxaemia and septicaemia have been treated mainly symptomatically and supportively. Based on the identified therapeutic targets, this review describes the current knowledge of the treatment for endotoxaemia and septicaemia in the horse with reference to the findings in other animal species and humans.
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Affiliation(s)
- A H Werners
- Department of Anatomy, Physiology and Pharmacology, School of Veterinary Medicine, St. George's University, True Blue Campus, St. George's, Grenada, West-Indies
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8
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Rütten S, Schusser GF, Abraham G, Schrödl W. Release kinetics of tumor necrosis factor-α and interleukin-1 receptor antagonist in the equine whole blood. BMC Vet Res 2016; 12:117. [PMID: 27316332 PMCID: PMC4912716 DOI: 10.1186/s12917-016-0742-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 06/09/2016] [Indexed: 11/24/2022] Open
Abstract
Background Horses are much predisposed and susceptible to excessive and acute inflammatory responses that cause the recruitment and stimulation of polymorphnuclear granulocytes (PMN) together with peripheral blood mononuclear cells (PBMC) and the release of cytokines. The aim of the study is to develop easy, quick, cheap and reproducible methods for measuring tumor necrosis factor alpha (TNF-α) and interleukin-1 receptor antagonist (IL-1Ra) in the equine whole blood cultures ex-vivo time- and concentration-dependently. Results Horse whole blood diluted to 10, 20 and 50 % was stimulated with lipopolysaccharide (LPS), PCPwL (a combination of phytohemagglutinin E, concanavalin A and pokeweed mitogen) or equine recombinant TNF-α (erTNF-α). TNF-α and IL-1Ra were analyzed in culture supernatants, which were collected at different time points using specific enzyme-linked immunosorbent assays (ELISA). Both cytokines could be detected optimal in stimulated 20 % whole blood cultures. TNF-α and IL-1Ra releases were time-dependent but the kinetic was different between them. PCPwL-induced TNF-α and IL-1Ra release was enhanced continuously over 24–48 h, respectively. Similarly, LPS-stimulated TNF-α was at maximum at time points between 8–12 h and started to decrease thereafter, whereas IL-1Ra peaked later between 12–24 h and rather continued to accumulate over 48 h. The equine recombinant TNF-α could induce also the IL-1Ra release. Conclusions Our results demonstrate that similar to PCPwL, LPS stimulated TNF-α and IL-1Ra production time-dependently in whole blood cultures, suggesting the suitability of whole blood cultures to assess the release of a variety of cytokines in health and diseases of horse.
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Affiliation(s)
- Simon Rütten
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, Leipzig University, An den Tierkliniken 15, 04103, Leipzig, Germany
| | - Gerald F Schusser
- Department of Large Animal Medicine, Faculty of Veterinary Medicine, Leipzig University, An den Tierkliniken 11, 04103, Leipzig, Germany
| | - Getu Abraham
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, Leipzig University, An den Tierkliniken 15, 04103, Leipzig, Germany.
| | - Wieland Schrödl
- Institute of Bacteriology and Mycology, Faculty of Veterinary Medicine, Leipzig University, An den Tierkliniken 29, 04103, Leipzig, Germany
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Lilliehöök I, Tvedten HW, Bröjer J, Edner A, Nostell K. Time-related changes in equine neutrophils after experimental endotoxemia: myeloperoxidase staining, size, and numbers. Vet Clin Pathol 2016; 45:66-72. [DOI: 10.1111/vcp.12334] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Inger Lilliehöök
- University Animal Hospital; Swedish University of Agricultural Sciences; Uppsala Sweden
| | - Harold W. Tvedten
- University Animal Hospital; Swedish University of Agricultural Sciences; Uppsala Sweden
- Department of Clinical Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
| | - Johan Bröjer
- Department of Clinical Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
| | - Anna Edner
- Department of Clinical Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
| | - Katarina Nostell
- Department of Clinical Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
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10
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Liu Z, Wang Z, Han G, Huang L, Jiang J, Li S. Ketamine attenuates high mobility group box-1–induced inflammatory responses in endothelial cells. J Surg Res 2016; 200:593-603. [DOI: 10.1016/j.jss.2015.08.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 08/02/2015] [Accepted: 08/19/2015] [Indexed: 02/06/2023]
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Anderson SL, Duke-Novakovski T, Singh B. The immune response to anesthesia: part 2 sedatives, opioids, and injectable anesthetic agents. Vet Anaesth Analg 2014; 41:553-66. [PMID: 24962601 DOI: 10.1111/vaa.12191] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 03/24/2014] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To review the immune response to injectable anesthetics and sedatives and to compare the immunomodulatory properties between inhalation and injectable anesthetic protocols. STUDY DESIGN Review. METHODS AND DATABASES Multiple literature searches were performed using PubMed and Google Scholar from March 2012 through November 2013. Relevant anesthetic and immune terms were used to search databases without year published or species constraints. The online database for Veterinary Anaesthesia and Analgesia and the Journal of Veterinary Emergency and Critical Care were searched by issue starting in 2000 for relevant articles. CONCLUSION Sedatives, injectable anesthetics, opioids, and local anesthetics have immunomodulatory effects that may have positive or negative consequences on disease processes such as endotoxemia, generalized sepsis, tumor growth and metastasis, and ischemia-reperfusion injury. Therefore, anesthetists should consider the immunomodulatory effects of anesthetic drugs when designing anesthetic protocols for their patients.
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Affiliation(s)
- Stacy L Anderson
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
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12
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Gozalo-Marcilla M, Gasthuys F, Schauvliege S. Partial intravenous anaesthesia in the horse: a review of intravenous agents used to supplement equine inhalation anaesthesia. Part 1: lidocaine and ketamine. Vet Anaesth Analg 2014; 41:335-45. [PMID: 24815750 DOI: 10.1111/vaa.12179] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 09/13/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To review the literature with regard to the use of different intravenous agents as supplements to inhalational anaesthesia in horses. These drugs include lidocaine, ketamine, opioids and α2 -agonists. The Part 1 of this review will focus in the use of lidocaine and ketamine. DATABASES USED Pubmed & Web of Science. Search terms: horse, inhalant anaesthesia, balanced anaesthesia, partial intravenous anaesthesia, lidocaine, ketamine. CONCLUSIONS Different drugs and their combinations can be administered systemically in anaesthetized horses, with the aim of reducing the amount of the volatile agent whilst improving the recovery qualities and providing a multimodal analgesic approach. However, full studies as to whether these techniques improve cardiopulmonary status are not always available and potential disadvantages should also be considered.
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Affiliation(s)
- Miguel Gozalo-Marcilla
- Department of Surgery and Anaesthesia of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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13
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Abdel-Salam OME, Youness ER, Mohammed NA, Omara EA, Sleem AA. Effect of ketamine on oxidative stress following lipopolysaccharide administration. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s00580-013-1854-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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14
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McGovern K, Lascola K, Smith S, Clark-Price S, Wilkins P, Schaeffer D, Foreman J. The Effects of Hyperglycemia and Endotoxemia on Coagulation Parameters in Healthy Adult Horses. J Vet Intern Med 2013; 27:347-53. [DOI: 10.1111/jvim.12052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 12/17/2012] [Accepted: 01/09/2013] [Indexed: 11/28/2022] Open
Affiliation(s)
- K.F. McGovern
- Department of Veterinary Clinical Medicine; University of Illinois; Urbana IL
| | - K.M. Lascola
- Department of Veterinary Clinical Medicine; University of Illinois; Urbana IL
| | - S.A. Smith
- College of Medicine; University of Illinois; Urbana IL
| | - S.C. Clark-Price
- Department of Veterinary Clinical Medicine; University of Illinois; Urbana IL
| | - P.A. Wilkins
- Department of Veterinary Clinical Medicine; University of Illinois; Urbana IL
| | - D.J. Schaeffer
- Department of Biosciences; University of Illinois; Urbana IL
| | - J.H. Foreman
- Department of Veterinary Clinical Medicine; University of Illinois; Urbana IL
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15
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Abstract
This article discusses anesthesia for horses with colic from acute gastrointestinal disease. Emphasis is placed on new developments in pre-, intra-, and immediate postoperative management over the last decade, including early goal-directed therapy (EGDT) in the resuscitation of septic patients, the controversy over the optimal fluid type to administer, and the management of complications, such as cardiovascular depression, hypoventilation and hypoxemia, and decreased colloid oncotic pressure (COP). An update on analgesia is also provided; older drugs such as ketamine and lidocaine are increasingly being recognized both for their analgesic properties and other potentially beneficial effects in endotoxemic horses.
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Affiliation(s)
- Jordyn M Boesch
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY 14850, USA.
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