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House JK, Izzo MM, Page SW, Browning GF, Norris JM. Antimicrobial prescribing guidelines for dairy cattle. Aust Vet J 2024; 102:143-186. [PMID: 38317437 DOI: 10.1111/avj.13311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Affiliation(s)
- J K House
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Sydney, NSW, Australia
| | - M M Izzo
- Smithton Veterinary Service, Smithton TAS, Australia
| | - S W Page
- Advanced Veterinary Therapeutics, Newtown, NSW, Australia
| | - G F Browning
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Science, The University of Melbourne, Parkville, Victoria, Australia
| | - J M Norris
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Sydney, NSW, Australia
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Qu H, Wang Y, Diao H, Ren G, Wang Z, Shang J, Shangguan L, Wang H. Clinical characteristics of 15 patients with listeria meningitis in adult. Heliyon 2024; 10:e23755. [PMID: 38223708 PMCID: PMC10784154 DOI: 10.1016/j.heliyon.2023.e23755] [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: 04/19/2023] [Revised: 11/01/2023] [Accepted: 12/12/2023] [Indexed: 01/16/2024] Open
Abstract
Objective To report and analyze the clinical characteristics of 15 patients with Listeria meningitis in adult. Methods We reviewed the medical records of 15 patients with Listeria meningitis who were admitted to Shanxi Bethune Hospital between January 2017 and January 2023. Results The clinical manifestations was primarily characterized by fever, altered mental status, headache, neck stiffness, and vomiting. Blood or cerebrospinal fluid (CSF) cultures were performed in 15 cases, and pathogens were detected in 11 of them. Metagenomic next-generation sequencing (mNGS) detected pathogens in 10 cases, with four being negative by conventional methods and six being positive through traditional tests. The laboratory blood results presented leukocytosis. The CSF analysis upon admission showed elevated levels of white blood cells and proteins, as well as decreased chloride and glucose concentration. The brain computed tomography (CT) revealed ventricular enlargement in 3 patients. The brain magnetic resonance imaging (MRI) showed abnormalities in multiple areas of the brain. Despite 3 patients with decompensated hydrocephalus underwent lateral ventricle puncture and drainage,their neurological deterioration were increasingly deteriorating.7 patients were treated by mechanical ventilation due to respiratory insufficiency. After 3 months, there were 9 cases with excellent outcomes(modified Rankin Scale score of 0-2),2 cases with favorable outcomes(score of 3-5), and 4 deaths(score of 6). Conclusions This thesis found that the detection rate of Listeria monocytogenes has been on a rise over the past six years in our department, ranking second only to Streptococcus pneumoniae. Additionally, the detection rate achieved by mNGS surpasses that of other conventional methods. Among the patient cohort, 11 had underlying diseases such as systemic lupus erythematosus, tuberculosis, diabetes mellitus, pituitary neoplasms, leukemia and other related illnesses. Once listeriosis is early identified, the adequate antibiotic therapy should be promptly introduced in the course of empirical treatment.
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Affiliation(s)
- Haixia Qu
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, China
| | - Yanhong Wang
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
| | - Haiyan Diao
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, China
| | - Gang Ren
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
| | - Zhijun Wang
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
| | - Jing Shang
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
| | - Lijuan Shangguan
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
| | - Hailong Wang
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
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Schöb LC, Gerspach C, Stirn M, Hofmann-Lehmann R, Riond B. Findings Related to Cerebrospinal Fluid and Central Nervous System Disorders in Small Ruminants-A Retrospective Study on Sheep and Goats. Animals (Basel) 2023; 14:46. [PMID: 38200777 PMCID: PMC10778181 DOI: 10.3390/ani14010046] [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: 09/15/2023] [Revised: 11/30/2023] [Accepted: 12/14/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Small ruminants often suffer from central nervous system (CNS) disorders, and cerebrospinal fluid (CSF) analysis can be used as a diagnostic tool in this regard. In small animals and cattle, specific CSF patterns have been defined for specific disease categories. No data exist regarding CSF results obtained from small ruminants and their association with certain CNS diseases. OBJECTIVES The objective of this study was to retrospectively investigate CSF findings obtained from sheep and goats and to identify possible CSF patterns associated with disease categories. METHODS CSF samples and medical records from 44 sheep and 27 goats were included in this study. All animals were presented to the Veterinary Teaching Hospital Zurich of the Veterinary Teaching Hospital Zurich of the Vetsuisse Faculty of the University of Zurich between 2003 and 2016 and had either a confirmed CNS diagnosis or showed CSF changes without a specific CNS diagnosis. RESULTS Mixed mononuclear pleocytosis was the most common CSF pattern in sheep (25%), followed by monocytic pleocytosis (21%). Lymphocytic pleocytosis was most frequently found in goats (37%). In 75% of sheep and 56% of goats, infectious CNS diseases were diagnosed, with listeriosis being the most common infectious disease in both species, followed by parasitic disorders (nematodiasis and coenurosis). CONCLUSIONS The cytologic CSF patterns in small ruminants are mainly based on the increased presence of monocytic and lymphocytic cells with variable quantitative expression, whereas neutrophilic pleocytosis and cytoalbuminologic dissociation were rare findings. Infectious diseases of bacterial origin were the most common underlying causes for CSF alterations in sheep and goats, followed by parasitic disorders. The pleocytosis type is not helpful for differentiating disease types.
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Affiliation(s)
- Leandra C. Schöb
- Clinical Laboratory, Department for Clinical Services and Diagnostics, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (L.C.S.); (M.S.); (R.H.-L.)
- Clinic for Ruminants, Department of Farm Animals, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland;
| | - Christian Gerspach
- Clinic for Ruminants, Department of Farm Animals, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland;
| | - Martina Stirn
- Clinical Laboratory, Department for Clinical Services and Diagnostics, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (L.C.S.); (M.S.); (R.H.-L.)
| | - Regina Hofmann-Lehmann
- Clinical Laboratory, Department for Clinical Services and Diagnostics, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (L.C.S.); (M.S.); (R.H.-L.)
| | - Barbara Riond
- Clinical Laboratory, Department for Clinical Services and Diagnostics, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (L.C.S.); (M.S.); (R.H.-L.)
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Câmara ACL, de Sousa DER, de Mâcedo IL, Soares KL, Borges JRJ, Martins CF, de Mesquita AQ, Dutra V, de Castro MB. Suppurative Meningoencephalitis by Pseudomonas aeruginosa from Direct Extension of Chronic Otitis in a Gir Cow. Vet Sci 2023; 10:398. [PMID: 37368784 DOI: 10.3390/vetsci10060398] [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: 05/04/2023] [Revised: 06/01/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
This paper aims to report clinical, laboratory and pathological features in a case of suppurative meningoencephalitis by P. aeruginosa from the direct extension of chronic otitis in a Gir cow. The cow was recumbent during physical examination, and neurological examination revealed depression, absence of left eyelid and auricular motor reflex, and hypotonic tongue. Hematology revealed hemoconcentration, leukocytosis by neutrophilia, and hyperfibrinogenemia. Cerebrospinal fluid was slightly turbid, and presented polymorphonuclear pleocytosis, and hyperproteinorrachia. Grossly, the skull floor showed a purulent green-yellow exudate that drained from the left inner ear to the cisterna magna. There was diffuse congestion of the telencephalon, and meninges showed severe hyperemia, moderate thickening, and opacity with the deposition of fibrinosuppurative material ventrally, extending to the cerebellum and brainstem. The left cerebellar hemisphere showed an approximately 1.5 cm in diameter liquefaction area surrounded by a hemorrhagic halo. Histologically, cerebellar, mesencephalic, thalamic, and brain base meninges were intensely thickened and showed severe suppurative inflammation and fibrin deposition. Small multifocal suppurative areas were observed in the cerebellum and brainstem, characterized by a necrotic core, a number of neutrophils, and Gram-negative intralesional bacillary myriads. Pure cultures of P. aeruginosa were obtained and identified in the suppurative CNS lesions, meninges, and inner ear samples. This report highlights an uncommon clinical evolution of secondary P. aeruginosa suppurative meningoencephalitis, probably triggered by recurrent parasitic otitis in an adult Gir cow. Veterinarians, practitioners, and farmers must be aware of the risk of CNS infections after unresolved media and inner otitis, especially in cattle breeds more prone to developing parasitic otitis, such as the Gir and Indubrasil breeds.
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Affiliation(s)
- Antonio Carlos Lopes Câmara
- Large Animal Veterinary Teaching Hospital, College of Agronomy and Veterinary Medicine, University of Brasília, Brasilia 70910-900, DF, Brazil
| | - Davi Emanuel Ribeiro de Sousa
- Veterinary Pathology Laboratory, College of Agronomy and Veterinary Medicine, University of Brasília, Brasilia 70910-900, DF, Brazil
| | - Isabel Luana de Mâcedo
- Veterinary Pathology Laboratory, College of Agronomy and Veterinary Medicine, University of Brasília, Brasilia 70910-900, DF, Brazil
| | - Karoline Lacerda Soares
- Veterinary Pathology Laboratory, College of Agronomy and Veterinary Medicine, University of Brasília, Brasilia 70910-900, DF, Brazil
| | - José Renato Junqueira Borges
- Large Animal Veterinary Teaching Hospital, College of Agronomy and Veterinary Medicine, University of Brasília, Brasilia 70910-900, DF, Brazil
| | - Carlos Frederico Martins
- Centro de Tecnologia para Raças Zebuínas Leiteiras, Embrapa Cerrados, Brasilia 70770-901, DF, Brazil
| | | | - Valéria Dutra
- Laboratory of Veterinary Molecular Biology, Veterinary Hospital, Federal University of Mato Grosso, Cuiabá 78060-900, MT, Brazil
| | - Márcio Botelho de Castro
- Veterinary Pathology Laboratory, College of Agronomy and Veterinary Medicine, University of Brasília, Brasilia 70910-900, DF, Brazil
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Ferrini S, Rollo C, Bellino C, Borriello G, Cagnotti G, Corona C, Di Muro G, Giacobini M, Iulini B, D'Angelo A. A novel machine learning-based web application for field identification of infectious and inflammatory disorders of the central nervous system in cattle. J Vet Intern Med 2023; 37:766-773. [PMID: 36896810 PMCID: PMC10061175 DOI: 10.1111/jvim.16664] [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: 11/16/2022] [Accepted: 02/03/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Central nervous system (CNS) infections in cattle are a major cause of economic loss and mortality. Machine learning (ML) techniques are gaining widespread application in solving predictive tasks in both human and veterinary medicine. OBJECTIVES Our primary aim was to develop and compare ML models that could predict the likelihood of a CNS disorder of infectious or inflammatory origin in neurologically-impaired cattle. Our secondary aim was to create a user-friendly web application based on the ML model for the diagnosis of infection and inflammation of the CNS. ANIMALS Ninety-eight cattle with CNS infection and 86 with CNS disorders of other origin. METHODS Retrospective observational study. Six different ML methods (logistic regression [LR]; support vector machine [SVM]; random forest [RF]; multilayer perceptron [MLP]; K-nearest neighbors [KNN]; gradient boosting [GB]) were compared for their ability to predict whether an infectious or inflammatory disease was present based on demographics, neurological examination findings, and cerebrospinal fluid (CSF) analysis. RESULTS All 6 methods had high prediction accuracy (≥80%). The accuracy of the LR model was significantly higher (0.843 ± 0.005; receiver operating characteristic [ROC] curve 0.907 ± 0.005 ) than the other models and was selected for implementation in a web application. CONCLUSION AND CLINICAL IMPORTANCE Our findings support the use of ML algorithms as promising tools for veterinarians to improve diagnosis. The open-access web application may aid clinicians in achieving correct diagnosis of infectious and inflammatory neurological disorders in livestock, with the added benefit of promoting appropriate use of antimicrobials.
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Affiliation(s)
- Sara Ferrini
- Department of Veterinary SciencesUniversity of TurinTurinItaly
| | - Cesare Rollo
- Department of Medical SciencesUniversity of TurinTurinItaly
| | - Claudio Bellino
- Department of Veterinary SciencesUniversity of TurinTurinItaly
| | | | - Giulia Cagnotti
- Department of Veterinary SciencesUniversity of TurinTurinItaly
| | - Cristiano Corona
- Istituto Zooprofilattico del Piemonte Liguria e Valle d'AostaTurinItaly
| | - Giorgia Di Muro
- Department of Veterinary SciencesUniversity of TurinTurinItaly
| | - Mario Giacobini
- Department of Veterinary SciencesUniversity of TurinTurinItaly
| | - Barbara Iulini
- Istituto Zooprofilattico del Piemonte Liguria e Valle d'AostaTurinItaly
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Smith JD, Harm TA, Greenlee JJ. Pathology in Practice. J Am Vet Med Assoc 2020; 254:819-821. [PMID: 30888268 DOI: 10.2460/javma.254.7.819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Clarke LL, Hawkins IK, Rissi DR. Central nervous system diseases of cattle in Georgia, 2001-2017. J Vet Diagn Invest 2019; 31:588-593. [PMID: 31179896 DOI: 10.1177/1040638719854788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In a review of 159 archived bovine autopsy cases submitted to the Georgia Veterinary Diagnostic Laboratory System from 2001 to 2017, we evaluated histologic lesions and other laboratory test results in cases diagnosed with central nervous system (CNS) disease to determine the most common disorders and the rate of definitive morphologic and etiologic diagnosis within the population. The most common breed was Aberdeen Angus or Angus (31%), and female animals comprised 60% of the overall submissions. Gross anatomic changes were described in 33% of cases that had histologic lesions. Suppurative meningoencephalitis was the most common diagnosis (28% of cases overall) and was frequently associated with bacterial sepsis. Lymphocytic meningoencephalitis without an identified etiology was diagnosed in 17% of cases. Polioencephalomalacia was the most commonly identified noninfectious diagnosis (17%). Hydrocephalus was the most common CNS comorbidity and potential congenital defect. Identification of specific agents was sporadic, and infectious disease testing was largely dependent on fluorescent antibody testing, almost all of which were negative. Our findings indicate the common differential diagnoses for cattle with neurologic signs in the southeastern United States, as well the need for a well-defined, methodical diagnostic approach, including autopsy, histology, and appropriate additional laboratory testing.
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Affiliation(s)
- Lorelei L Clarke
- Wisconsin Veterinary Diagnostic Laboratory, University of Wisconsin, Madison, WI (Clarke).,Department of Pathology and Athens Veterinary Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine (UGA-CVM), Athens, GA (Rissi).,Tifton Veterinary Diagnostic and Investigational Laboratory, UGA-CVM, Tifton, GA (Hawkins)
| | - Ian K Hawkins
- Wisconsin Veterinary Diagnostic Laboratory, University of Wisconsin, Madison, WI (Clarke).,Department of Pathology and Athens Veterinary Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine (UGA-CVM), Athens, GA (Rissi).,Tifton Veterinary Diagnostic and Investigational Laboratory, UGA-CVM, Tifton, GA (Hawkins)
| | - Daniel R Rissi
- Wisconsin Veterinary Diagnostic Laboratory, University of Wisconsin, Madison, WI (Clarke).,Department of Pathology and Athens Veterinary Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine (UGA-CVM), Athens, GA (Rissi).,Tifton Veterinary Diagnostic and Investigational Laboratory, UGA-CVM, Tifton, GA (Hawkins)
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Lanier CJ, Fish EJ, Stockler JW, Newcomer BW, Koehler JW. What is your diagnosis? Cerebrospinal fluid from a goat. Vet Clin Pathol 2019; 48:358-360. [DOI: 10.1111/vcp.12686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/15/2018] [Accepted: 06/27/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Christopher J. Lanier
- Department of Pathobiology Auburn University College of Veterinary Medicine Auburn Alabama
| | - Eric J. Fish
- Department of Pathobiology Auburn University College of Veterinary Medicine Auburn Alabama
| | - Jenna W. Stockler
- Department of Clinical Sciences Auburn University College of Veterinary Medicine Auburn Alabama
| | - Benjamin W. Newcomer
- Department of Clinical Sciences Auburn University College of Veterinary Medicine Auburn Alabama
| | - Jennifer W. Koehler
- Department of Pathobiology Auburn University College of Veterinary Medicine Auburn Alabama
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