| Neurological causes of diaphragmatic paralysis in 11 alpacas (Vicugna pacos). | |
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MedLine Citation:
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PMID: 21281346 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Diaphragmatic paralysis is a relatively uncommon medical condition in animals not reported in alpacas. OBJECTIVES: Describe the signalment, physical examination, diagnostic testing, clinical, and histopathologic findings related to diaphragmatic paralysis in alpacas. ANIMALS: Eleven alpacas with spontaneous diaphragmatic paralysis. METHODS: A retrospective study examined medical records from a 10-year period and identified 11 alpacas with confirmed diaphragmatic paralysis admitted to Washington State University and Colorado State University Veterinary Teaching Hospitals between September 2003 and October 2009. RESULTS: The 11 alpacas ranged in age from 2 to 12 months. Fluoroscopic imaging confirmed the presence of bilateral diaphragmatic paralysis in the 7 alpacas that were imaged. Arterial blood gas analyses showed hypercapnea, hypoxemia, and low oxygen saturation. Seven alpacas died or were euthanized between 2 and 60 days after onset of respiratory signs. Histopathologic examination of tissues found phrenic nerve degeneration in the 6 alpacas that were necropsied and additional long nerves examined demonstrated degeneration in 2 of these animals. Two animals had spinal cord lesions and 2 had diaphragm muscle abnormalities. No etiologic agent was identified in the alpacas. CoNCLUSIONS AND CLINICAL IMPORTANCE: The etiology for diaphragmatic paralysis in these alpacas is unknown. A variety of medical treatments did not appear to alter the outcome. |
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Authors:
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S Byers; G Barrington; D Nelson; G Haldorson; T Holt; R Callan |
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Publication Detail:
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Type: Journal Article Date: 2011-01-31 |
Journal Detail:
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Title: Journal of veterinary internal medicine / American College of Veterinary Internal Medicine Volume: 25 ISSN: 1939-1676 ISO Abbreviation: J. Vet. Intern. Med. Publication Date: 2011 Mar-Apr |
Date Detail:
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Created Date: 2011-03-08 Completed Date: 2011-04-18 Revised Date: 2011-06-21 |
Medline Journal Info:
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Nlm Unique ID: 8708660 Medline TA: J Vet Intern Med Country: United States |
Other Details:
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Languages: eng Pagination: 380-5 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 by the American College of Veterinary Internal Medicine. |
Affiliation:
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Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA. stacey.byers@colostate.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Blood Gas Analysis / veterinary* Camelids, New World* Diaphragm / innervation*, physiopathology* Female Male Respiratory Paralysis / diagnosis, mortality, pathology, veterinary* Retrospective Studies |
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