Table Of ContentEquine Neurology
Equine Neurology
SEcoNd EditioN
Martin Furr
Marion duPont Scott Equine Medical Center
Virginia‐Maryland Regional College of Veterinary Medicine
Leesburg, USA
Stephen Reed
Rood and Riddle Equine Hospital
Lexington, USA
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Library of Congress Cataloging-in-Publication Data
Equine neurology / [edited by] Martin Furr, Stephen Reed. – Second edition.
p. ; cm.
Includes bibliographical references and index.
ISBN 978-1-118-50147-4 (cloth)
1. Horses–Diseases. 2. Nervous system–Diseases. 3. Veterinary neurology. I. Furr, Martin, editor.
II. Reed, Stephen M., editor.
[DNLM: 1. Central Nervous System Diseases–veterinary. 2. Horse Diseases–diagnosis.
3. Nervous System Diseases–veterinary. SF 959.N47]
SF959.N47E68 2015
636.1′08968–dc23
2015007228
A catalogue record for this book is available from the British Library.
Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not
be available in electronic books.
Cover image: istockphoto-neuron-impulses 10-01-07 © ChristianAnthony
Set in 8.5/10.5pt Meridien by SPi Global, Pondicherry, India
1 2015
Contents
Contributors List, vii 14 Electrodiagnostic Evaluation of the Nervous
System, 157
Preface, ix
George M. Strain, Frank Andrews, and Veronique A.
Video Clips Demonstrating Clinical Signs, x Lacombe
15 Anesthetic Considerations for Horses with
Section 1: Foundations of Clinical Neurology Neurologic Disorders, 184
1 Overview of Neuroanatomy, 3 Adriana G. Silva
Caroline Hahn and Jerry Masty 16 The Basics of Equine Neuropathology, 191
2 Cerebrospinal Fluid and the Blood–Brain Fabio Del Piero and John L. Robertson
Barrier, 21 17 Diagnostic Imaging of the Equine Nervous System, 215
Martin Furr Katherine Garrett
3 Immunology of the Central Nervous System, 36
Martin Furr Section 3: Specific Disease Syndromes
4 Pharmaceutical Considerations for Treatment 18 Equid Herpesvirus‐Associated
of Central Nervous System Disease, 46 Myeloencephalopathy, 225
Véronique A. Lacombe and Martin Furr Lutz S. Goehring
5 Fundamental Neurophysiology, 58 19 Mosquito‐Borne Infections Affecting the Central
Craig Johnson and Caroline Hahn Nervous System, 233
Maureen T. Long
Section 2: Clinical Equine Neurology 20 Contagious Neurological Diseases, 262
Maureen T. Long
6 Examination of the Nervous System, 67
Martin Furr and Stephen Reed 21 Bacterial Infections of the Central Nervous
System, 273
7 Differential Diagnosis and Management of Horses
Martin Furr
with Seizures or Alterations in Consciousness, 79
Véronique A. Lacombe and Martin Furr 22 Equine Protozoal Myeloencephalitis, 285
Martin Furr and Daniel K. Howe
8 Differential Diagnosis of Equine Spinal Ataxia, 93
Martin Furr 23 Parasitic Infections of the Central Nervous System, 306
Martin Furr
9 Differential Diagnosis and Management of Cranial
Nerve Abnormalities, 99 24 Miscellaneous Infections of the Central Nervous
Robert J. MacKay System, 314
Martin Furr
10 Sleep and Sleep Disorders in Horses, 123
Joseph J. Bertone 25 Disorders Associated with Clostridial Neurotoxins:
Botulism and Tetanus, 319
11 Headshaking, 130
Martin Furr
Monica Aleman and Kirstie Pickles
12 Differential Diagnosis of Urinary Incontinence 26 Neurodegenerative Disorders, 328
Robert J. MacKay
and Cauda Equina Syndrome, 139
Melissa Hines 27 Equine Hepatic Encephalopathy, 343
Tom Divers
13 Differential Diagnosis of Muscle Tremor and
Paresis, 149 28 Cervical Vertebral Stenotic Myelopathy, 349
Amy L. Johnson Amy L. Johnson and Stephen Reed
v
vi Contents
29 Electrolyte Abnormalities and Neurologic 34 Equine Neurotoxic Agents and Conditions, 437
Dysfunction in Horses, 368 Martin Furr
Ramiro E. Toribio
35 Neonatal Encephalopathy
30 Cervical Articular Process Disease, Fractures, and and Related Conditions, 455
Other Axial Skeletal Disorders, 386 Martin Furr
Richard Hepburn
36 Miscellaneous Movement Disorders, 465
31 Congenital Malformation of Caroline Hahn
the Nervous System, 401
37 Stereotypic and Behavior Disorders, 472
Martin Furr
Carissa L. Wickens and Katherine A. Houpt
32 Central Nervous System Trauma, 406 38 Miscellaneous Conditions, 484
Yvette S. Nout‐Lomas
Martin Furr
33 Disorders of the Peripheral Nervous System, 429
Martin Furr Index, 488
Contributors List
Monica Aleman, MVZ Cert, PhD, Dip ACVIM Richard Hepburn, BVSc, MS, Cert EM(Int Med),
(Internal Medicine, Neurology) Dip ACVIM, MRCVS
College of Veterinary Medicine B & W Equine Hospital
University of California Gloucestershire, UK
Davis, USA
Melissa Hines, DVM, Dip ACVIM
Frank Andrews, DVM, MS, Dip ACVIM College of Veterinary Medicine
School of Veterinary Medicine University of Tennessee
Louisiana State University Knoxville, USA
Baton Rouge, USA
Katherine A. Houpt, VMD, PhD, Dip ACVB
Joseph J. Bertone, DVM, MS, Dip ACVIM College of Veterinary Medicine
College of Veterinary Medicine Cornell University
Western University Ithaca, USA
Pomona, USA
Daniel K. Howe, PhD
Fabio Del Piero, DVM, PhD, Dip ACVP Gluck Equine Center
School of Veterinary Medicine University of Kentucky
Louisiana State University Lexington, USA
Baton Rouge, USA
Amy L. Johnson, DVM, Dip ACVIM
Tom Divers, DVM, Dip ACVIM
New Bolton Center
College of Veterinary Medicine
University of Pennsylvania School of Veterinary Medicine
Cornell University
Kennett Square, USA
Ithaca, USA
Craig Johnson, BVSc, PhD, DVA, Dip ECVA
Martin Furr, DVM, Dip ACVIM, PhD
Institute of Veterinary, Animal and Biomedical Sciences
Marion duPont Scott Equine Medical Center
Massey University
Virginia‐Maryland Regional College of Veterinary
Palmerstown North, New Zealand
Medicine
Leesburg, USA
Véronique A. Lacombe, DVM, PhD, Dip ACVIM,
Katherine Garrett, DVM, Dip ACVS Dip ECEIM
Rood and Riddle Equine Hospital Center for Veterinary Health Sciences
Lexington, USA Oklahoma State University
Stillwater, USA
Lutz S. Goehring, DVM, MS, PhD, Dip ACVIM
College of Veterinary Medicine Maureen T. Long, DVM, MS, PhD, Dip ACVIM
Ludwig Maximillians University College of Veterinary Medicine
Munich, Germany University of Florida
Gainesville, USA
Caroline Hahn, DVM, MSc, PhD, Dip ECEIM,
Dip ECVN, MRCVS Robert J. MacKay, BVSc, PhD, Dip ACVIM
Royal (Dick) School of Veterinary Studies College of Veterinary Medicine
The University of Edinburgh University of Florida
Midlothian, UK Gainesville, USA
vii
viii Contributors List
Jerry Masty, DVM, MS, PhD Adriana G. Silva, DVM, MS
College of Veterinary Medicine Faculty of Veterinary Medicine
The Ohio State University University of Montreal
Columbus, USA Saint Hyacinthe, Canada
Yvette S. Nout‐Lomas, DVM, MS, PhD, Dip ACVIM, George M. Strain, PhD
Dip ACVECC School of Veterinary Medicine
College of Veterinary Medicine Louisiana State University
Colorado State University Baton Rouge, USA
Fort Collins, USA
Ramiro E. Toribio, DVM, MS, PhD, Dip ACVIM
Kirstie Pickles, BCMS, MSc, Dip ECEIM, PhD College of Veterinary Medicine
Scarsdale Equine Veterinary Practice The Ohio State University
Derby, UK Columbus, USA
Stephen Reed, DVM, MS, Dip ACVIM Tim Vojt, MA
Rood and Riddle Equine Hospital College of Veterinary Medicine
Lexington, USA The Ohio State University
Columbus, USA
John L. Robertson, VMD, PhD
Virginia Tech Carissa L. Wickens, PhD
Virginia‐Maryland Regional College of Veterinary Department of Animal Sciences
Medicine University of Florida
Leesburg, USA Gainesville, USA