45 results on '"Horner Syndrome veterinary"'
Search Results
2. Bilateral miosis and third eyelid protrusion in a Golden Retriever with lateralizing forebrain signs.
- Author
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Jiménez González R and Posporis C
- Subjects
- Dogs, Animals, Nictitating Membrane, Miosis diagnosis, Miosis veterinary, Horner Syndrome veterinary, Dog Diseases diagnostic imaging, Dog Diseases surgery
- Published
- 2023
- Full Text
- View/download PDF
3. Horner syndrome as a physiological biomarker of disease in canine cervical myelopathy.
- Author
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Murthy VD, Phillips K, Knipe M, Giuffrida M, and Li CF
- Subjects
- Dogs, Animals, Retrospective Studies, Magnetic Resonance Imaging veterinary, Biomarkers, Horner Syndrome veterinary, Horner Syndrome complications, Dog Diseases diagnosis, Spinal Cord Diseases veterinary, Intervertebral Disc Displacement veterinary
- Abstract
Background: Horner syndrome often occurs with cervical myelopathies and might provide insight into the underlying disease and prognosis., Objectives: To describe the clinical and imaging features of dogs with cervical myelopathy and concurrent Horner syndrome and to determine association of Horner syndrome with diseases or magnetic resonance images (MRI)., Animals: Ninety-three client-owned dogs with cervical myelopathy and concurrent Horner syndrome and 99 randomly selected client-owned dogs with cervical myelopathy without Horner syndrome (control cases)., Methods: Retrospective study. Medical records were reviewed to identify Horner and control cases and clinical findings recorded. MRI were reviewed, and lesions characterized and recorded. Descriptive and comparative statistics were performed., Results: Non-compressive disease occurred more frequently in the Horner group compared with controls (58%; 95% CI: 48-68 vs 9%; 95% CI: 5-16; P < .0001). The most common diseases were fibrocartilaginous embolism in the Horner group (44/93; 47%) and intervertebral disc extrusion (76/99; 77%) amongst controls. On MRI, parenchymal hyperintensity was seen more commonly in the Horner group (95%; 95% CI: 88-98) compared with controls (51%; 95% CI: 41-60; P < .0001). In the Horner group, dogs that did not survive to discharge (N = 13) had more extensive MRI lesions relative to the adjacent vertebral length (200%; IQR 110%-575%) compared with survivors (N = 80; 110%; IQR 40%-250%; P = .02). Lateralization of Horner signs and MRI changes matched in 54% of cases. The overall survival rate was high in both Horner (80/93; 86%) and control (95/99; 96%) groups., Conclusions and Clinical Importance: Horner syndrome in cervical myelopathy is commonly associated with noncompressive intraparenchymal disease., (© 2023 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals LLC on behalf of American College of Veterinary Internal Medicine.)
- Published
- 2023
- Full Text
- View/download PDF
4. The diagnostic yield of advanced imaging in dogs with Horner's syndrome presenting with and without additional clinical signs: A retrospective study of 120 cases (2000-2018).
- Author
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Lockhart RL, Tzouganakis I, Tsvetanova A, Smith KM, and Smith PM
- Subjects
- Animals, Dogs, Phenylephrine, Records veterinary, Retrospective Studies, Dog Diseases diagnostic imaging, Dog Diseases epidemiology, Horner Syndrome diagnostic imaging, Horner Syndrome veterinary
- Abstract
Purpose: To evaluate the diagnostic yield of advanced imaging in dogs with Horner's syndrome (HS) both with and without additional clinical signs., Methods: Retrospective review of clinical records from a UK referral hospital (2000-2018). Cases were excluded if HS was trauma- or surgery-related and if no advanced imaging with MRI or CT was performed. Imaging findings were assessed as well as any additional investigations performed., Results: One hundred twenty cases met the inclusion criteria; 88 with additional clinical signs and 32 with isolated HS. MRI or CT of head and neck was performed in 115 cases and/or thoracic CT in eight cases. Causative lesions were identified in 98% (86/88) of cases with additional clinical signs and 3% (1/32) of cases with isolated HS. This was statistically significant (p < .001). Pharmacological localization using phenylephrine (0.1%-10%) was accurate in predicting the site of a causative lesion in 79% (19/24) of tested cases. Overall, 28% (33/120) of cases were idiopathic, of which 49% (16/33) were golden retrievers. When compared to the overall hospital population, and UK Kennel Club records, this confirmed a significant predisposition in this breed (p < .001). No associations between idiopathic HS and concurrent systemic disease were identified., Conclusion: This is the first study to evaluate the diagnostic yield of advanced imaging in dogs with HS. Isolated HS is significantly more likely to be idiopathic than cases presenting with additional clinical signs; this could guide decision-making regarding further investigations performed in a clinical setting. Idiopathic HS is over-represented in the golden retriever., (© 2021 American College of Veterinary Ophthalmologists.)
- Published
- 2022
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5. Neurogenic keratoconjunctivitis sicca in 34 dogs: A case series.
- Author
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Galley AP, Beltran E, and Tetas Pont R
- Subjects
- Animals, Dogs, Female, Male, Pilocarpine therapeutic use, Dog Diseases diagnosis, Dog Diseases drug therapy, Dog Diseases etiology, Horner Syndrome veterinary, Keratoconjunctivitis Sicca diagnosis, Keratoconjunctivitis Sicca drug therapy, Keratoconjunctivitis Sicca veterinary
- Abstract
Objective: To describe the clinical findings, imaging features, underlying conditions, treatment, and progression of dogs presented between 2010 and 2019 with neurogenic keratoconjunctivitis sicca (NKCS)., Methods: Dogs diagnosed with NKCS were searched in the clinical database. Inclusion criteria were STT-1 readings <15 mm/min, clinical signs of KCS with concurrent ipsilateral xeromycteria., Results: Thirty-four cases were identified. Mean age at presentation was 8.2 years, median 8.9 years (0.3-14.7). Twenty dogs were male, and 14 dogs were female. Concurrent neurological deficits included facial neuropathy (n = 13, 38%), peripheral vestibular syndrome (n = 10, 29%), and Horner's syndrome (n = 5, 15%). Advanced imaging was acquired in 53% of cases (n = 18). Etiologies included idiopathic (n = 18, 53%), endocrinopathy (n = 6, 18%), otitis interna (n = 4, 12%), head trauma (n = 3, 9%), iatrogenic (post-TECA-LBO, n = 1, 3%), brainstem mass (n = 1, 3%), and an area of inflammation in the pterygopalatine fossa (n = 1, 3%). Treatment for NKCS was initiated in most cases (n = 30, 88%) including: oral pilocarpine 2% and lacrimostimulant (n = 19), oral pilocarpine 2% only (n = 3), or lacrimostimulant only (n = 8). A mean time follow-up of 3.7 months, median 3 months (1-14) was available in 23 cases (68%). Eleven cases with follow-up were responsive (48%) with resolution of the clinical signs in a median time 4 months (1-10), and all of them were treated with oral pilocarpine (±lacrimostimulant)., Conclusions: Most cases presented as idiopathic NKCS; in others, an underlying cause of facial neuropathy was identified. All responsive cases were treated with oral pilocarpine 2%., (© 2021 American College of Veterinary Ophthalmologists.)
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- 2022
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6. Transient unilateral Horner's syndrome after epidural catheter administration of bupivacaine in a dog.
- Author
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Bianchi C and Stathopoulou TR
- Subjects
- Animals, Bupivacaine adverse effects, Catheters, Dogs, Analgesia, Epidural veterinary, Anesthesia, Epidural adverse effects, Anesthesia, Epidural veterinary, Dog Diseases chemically induced, Horner Syndrome chemically induced, Horner Syndrome veterinary
- Published
- 2021
- Full Text
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7. Anesthesia Case of the Month.
- Author
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Chohan AS
- Subjects
- Animals, Female, Horner Syndrome chemically induced, Nerve Block adverse effects, Anesthesia veterinary, Dog Diseases chemically induced, Dogs physiology, Horner Syndrome veterinary, Nerve Block veterinary
- Published
- 2019
- Full Text
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8. Retrospective analysis of ocular neuropathies in diabetic dogs following cataract surgery.
- Author
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Foote BC, Michau TM, Welihozkiy A, and Stine JM
- Subjects
- Animals, Dog Diseases etiology, Dogs, Female, Florida epidemiology, Horner Syndrome epidemiology, Incidence, Male, Postoperative Complications epidemiology, Postoperative Complications veterinary, Records veterinary, Cataract Extraction veterinary, Diabetes Mellitus, Type 2 veterinary, Dog Diseases epidemiology, Horner Syndrome veterinary
- Abstract
Objectives: To describe and compare the cumulative incidence and clinical progression of ocular neuropathies in diabetic dogs vs nondiabetic dogs following cataract surgery., Methods: Medical records of 196 diabetic and 442 nondiabetic dogs who underwent cataract surgery between 2004 and 2015 were reviewed. The percentage of patients affected by neuropathy and potential risk factors were compared between groups., Results: Patients with diabetes mellitus (DM) were 20.4 times more likely to develop an ocular neuropathy than patients without DM (12.24% vs 0.68%). Twenty-four diabetic patients were affected by mononeuropathies or polyneuropathies including Horner's syndrome (n = 20), facial neuropathy (n = 5), and neurogenic keratoconjunctivitis sicca (NKCS) (n = 5). The odds of a diabetic patient developing Horner's syndrome and NKCS were 86.3 and 20.7 times higher than a nondiabetic patient, respectively. The average duration of DM prior to diagnosis of neuropathy was 659 days (range 110-2390 days; median 559 days). Complete resolution was achieved in 10 of 22 neuropathies (45%) within an average of 248 days (range 21-638 days; median 187 days) after diagnosis., Conclusions: The odds of developing an ocular neuropathy, specifically Horner's syndrome and NKCS, are statistically higher in diabetic patients compared to nondiabetic patients. Neuropathies were observed as a long-term complication in this group of diabetic patients, and complete resolution of the neuropathy was observed in less than half of the affected population., (© 2018 American College of Veterinary Ophthalmologists.)
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- 2019
- Full Text
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9. Diagnostic Ophthalmology.
- Author
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Grahn BH and Osinchuk S
- Subjects
- Animals, Dogs, Horner Syndrome diagnosis, Male, Dog Diseases diagnosis, Horner Syndrome veterinary
- Published
- 2017
10. Disseminated peripheral neuroblastoma in a Rhodesian Ridgeback dog.
- Author
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Cook RW, Abraham LA, and McCowan CI
- Subjects
- Animals, Ataxia etiology, Ataxia veterinary, Bone Marrow Neoplasms secondary, Bone Marrow Neoplasms veterinary, Bone Neoplasms secondary, Bone Neoplasms veterinary, Dogs, Horner Syndrome etiology, Horner Syndrome veterinary, Male, Neuroblastoma complications, Neuroblastoma pathology, Peripheral Nervous System Neoplasms complications, Peripheral Nervous System Neoplasms pathology, Splenic Neoplasms secondary, Splenic Neoplasms veterinary, Vocal Cord Paralysis etiology, Vocal Cord Paralysis veterinary, Dog Diseases pathology, Neuroblastoma veterinary, Peripheral Nervous System Neoplasms veterinary
- Abstract
Case Report: A 4-year-old neutered male Rhodesian Ridgeback dog with right-sided Horner's syndrome, bilateral laryngeal paralysis, neck pain and bilateral hindlimb ataxia was euthanased following deterioration of its neurological status. Necropsy examination revealed an off-white retropharyngeal neoplastic mass (100 × 30 × 30 mm) attached to the base of the skull on the right side and macroscopic nodular metastases in the spleen and three vertebral bodies (C6, C7 and T6), including a nodule attached to the dura at C7. Histological evidence of neuroblastic tumour was detected in these macroscopic lesions, a regional lymph node, bone marrow of a femur and all 15 vertebral bodies (C1-T8) examined, including the three with macroscopic metastases, and in the lumens of small blood vessels in the lungs and liver. Ganglion cell differentiation was detected only in the primary retropharyngeal mass, one splenic nodule and the C7 dural nodule. Neoplastic cells were immunoreactive to neurofilament protein (ganglion cells only), vimentin and synaptophysin, and were negative for S100 protein, GFAP, CD3 and Pax5., Conclusion: The diagnosis was disseminated peripheral neuroblastoma, differentiating subtype (International Neuroblastoma Pathology Classification), with likely primary involvement of the right cranial cervical ganglion. This appears to be the first report of neuroblastoma in a dog with widespread occult haematogenous metastasis to bone marrow., (© 2017 Australian Veterinary Association.)
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- 2017
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11. Neuropharmacological lesion localization in idiopathic Horner's syndrome in Golden Retrievers and dogs of other breeds.
- Author
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Simpson KM, Williams DL, and Cherubini GB
- Subjects
- Animals, Autonomic Fibers, Preganglionic drug effects, Autonomic Fibers, Preganglionic pathology, Blepharoptosis diagnosis, Blepharoptosis pathology, Blepharoptosis veterinary, Dog Diseases diagnosis, Dogs, Female, Horner Syndrome diagnosis, Horner Syndrome pathology, Male, Miosis diagnosis, Miosis pathology, Miosis veterinary, Phenylephrine pharmacology, Species Specificity, Sympathetic Fibers, Postganglionic drug effects, Sympathetic Fibers, Postganglionic pathology, Sympathomimetics pharmacology, Dog Diseases pathology, Horner Syndrome veterinary
- Abstract
Objective: To investigate whether idiopathic Horner's syndrome (HS) in Golden Retrievers is an exclusively preganglionic disorder based on denervation hypersensitivity pharmacological testing with phenylephrine., Animals Studied: Medical records of dogs presented with HS between 2000 and 2012. Dogs presented with additional ocular or systemic signs were excluded., Procedures: Clinical data examined included age, sex, duration of clinical signs, ancillary diagnostic test results, and time to mydriasis on topical ocular application of 1% phenylephrine. Lesions were diagnosed as postganglionic (mydriasis within 20 min) or preganglionic (mydriasis between 20 and 45 min)., Results: Medical records of 21 dogs of nine different breeds were included. An etiopathogenesis for Horner's syndrome was determined in five dogs, none of which were Golden Retrievers. All diagnoses correlated with pharmacological lesion localization. Ten Golden Retrievers were included (eight male and two female) with a mean age of 8.5 years (range: 4-13). Lesion localization was diagnosed as postganglionic in eight (mean: 10 min [range: 6-18]) and preganglionic in two Golden Retrievers (20 and 24 min). All cases were unilateral and had completely resolved within 15 weeks (range: 11-20). Recurrence was not reported in any of the patients., Conclusions: Idiopathic postganglionic HS was diagnosed in eight of 10 Golden Retrievers contradicting previous reports of a purely preganglionic localization. Etiopathogenesis of canine idiopathic HS remains to be determined; nevertheless, a vascular etiology cannot be excluded. Future studies using magnetic resonance angiography may aid in clarifying the pathogenesis., (© 2013 American College of Veterinary Ophthalmologists.)
- Published
- 2015
- Full Text
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12. Postoperative complications following TECA-LBO in the dog and cat.
- Author
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Spivack RE, Elkins AD, Moore GE, and Lantz GC
- Subjects
- Animals, Cats, Dogs, Ear Diseases veterinary, Facial Paralysis diagnosis, Facial Paralysis epidemiology, Facial Paralysis etiology, Female, Horner Syndrome diagnosis, Horner Syndrome epidemiology, Horner Syndrome etiology, Incidence, Male, Neurologic Examination veterinary, Osteotomy adverse effects, Postoperative Complications diagnosis, Postoperative Complications epidemiology, Retrospective Studies, Cat Diseases surgery, Dog Diseases surgery, Ear Diseases surgery, Facial Paralysis veterinary, Horner Syndrome veterinary, Osteotomy veterinary, Postoperative Complications veterinary
- Abstract
The medical records for 133 total ear canal ablations combined with lateral bulla osteotomies (TECA-LBOs) performed on 82 dogs (121 ears) and 11 cats (12 ears) between 2004 and 2010 were reviewed to determine if the duration of preoperative clinical signs was associated with the incidence of postoperative facial nerve injury and Horner's syndrome. Other perioperative complications, such as a head tilt, nystagmus, incisional drainage, draining tracts, hearing loss, as well as bacterial culture results, were noted. Postoperative facial nerve paresis occurred in 36 of 133 ears (27.1%), and paralysis occurred in 29 of 133 ears (21.8%), with no significant difference between species. Thus, postoperative facial nerve deficits occurred in 48.9% of ears. The median duration of clinically evident temporary facial nerve deficits was 2 wk for dogs and 4 wk for cats. Dogs had a significantly longer duration of preoperative clinical signs and were less likely than cats to have a mass in the ear canal. Dogs were less likely to have residual (> 1 yr) postoperative facial nerve deficits. The incidence of postoperative Horner's syndrome was significantly higher in cats than dogs. The duration of preoperative clinical signs of ear disease was not associated with postoperative facial nerve deficits.
- Published
- 2013
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13. Transient Horner's syndrome after paravertebral brachial plexus blockade in a dog.
- Author
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Viscasillas J, Sanchis-Mora S, Hoy C, and Alibhai H
- Subjects
- Animals, Dogs, Horner Syndrome chemically induced, Male, Nerve Block adverse effects, Brachial Plexus, Dog Diseases chemically induced, Horner Syndrome veterinary, Nerve Block veterinary
- Published
- 2013
- Full Text
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14. Neurological manifestations of ear disease in dogs and cats.
- Author
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Garosi LS, Lowrie ML, and Swinbourne NF
- Subjects
- Animals, Cat Diseases diagnosis, Cats, Dog Diseases diagnosis, Dogs, Ear anatomy & histology, Ear physiology, Ear Diseases diagnosis, Ear Diseases physiopathology, Facial Paralysis diagnosis, Facial Paralysis etiology, Horner Syndrome diagnosis, Horner Syndrome physiopathology, Horner Syndrome veterinary, Vestibular Diseases diagnosis, Vestibular Diseases physiopathology, Vestibular Diseases veterinary, Cat Diseases physiopathology, Dog Diseases physiopathology, Ear Diseases veterinary, Facial Paralysis veterinary, Neurologic Examination veterinary
- Abstract
There are four major neuroanatomical structures associated with the ear that, when damaged, result in different neurologic clinical signs. These structures are the facial nerve, the ocular sympathetic tract, the vestibular receptors, and the cochlea. The clinical signs associated with disorders of each structure are discussed, followed by a summary of the diseases that should be considered in each case. The article begins with a description of the neuroanatomy of each of these structures., (Copyright © 2012 Elsevier Inc. All rights reserved.)
- Published
- 2012
- Full Text
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15. Thoracic epidural catheter placement using a paramedian approach with cephalad angulation in three dogs.
- Author
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Franci P, Leece EA, and Corletto F
- Subjects
- Analgesics, Opioid administration & dosage, Anesthetics, Local administration & dosage, Animals, Bupivacaine administration & dosage, Catheterization methods, Dogs, Horner Syndrome etiology, Horner Syndrome veterinary, Lumbar Vertebrae, Male, Morphine administration & dosage, Pain, Postoperative prevention & control, Thoracic Vertebrae, Thoracotomy adverse effects, Analgesia, Epidural veterinary, Catheterization veterinary, Dog Diseases prevention & control, Pain, Postoperative veterinary, Thoracotomy veterinary
- Abstract
Objective: To describe a technique for insertion of a thoracic epidural catheter., Study Design: Clinical report., Animals: Dogs (n = 3) undergoing thoracic wall resection and thoracotomy., Methods: A paramedian approach with cephalic angulation was used to place a 24-g epidural catheter in 3 dogs. Dogs 1 and 2 had left caudal thoracic wall resection and dog 3 had left thoracotomy. In dog 1, the epidural catheter was inserted at L2-L3 intervertebral space and the tip of the catheter advanced to the level of T13 vertebral body. In dog 2, the epidural catheter was inserted at T12-T13 intervertebral space and the tip of the catheter was advanced to the level of T8 vertebral body. In dog 3, the epidural catheter was inserted at T13-L1 intervertebral space and its tip advanced until reaching the vertebral body of T10. All dogs were administered a combination of bupivacaine and morphine through the epidural catheter to provide intra- and postoperative analgesia., Results: The peridural space was identified and the tip of the catheter was positioned where intended in all dogs. Dog 1 developed transient Horner's syndrome and dog 3 required intraoperative fentanyl during the first part of the procedure., Conclusion: Paramedian approach with cephalad angulation is a suitable technique to place thoracic epidural catheters in dogs., (© Copyright 2012 by The American College of Veterinary Surgeons.)
- Published
- 2012
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16. Surgical treatment of a hemivertebra by partial ventral corpectomy and fusion in a Labrador puppy.
- Author
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Meheust P and Robert R
- Subjects
- Animals, Dogs, Gait, Horner Syndrome veterinary, Kyphosis surgery, Male, Spinal Cord abnormalities, Spinal Fusion methods, Cervical Vertebrae surgery, Dog Diseases surgery, Kyphosis veterinary, Lumbar Vertebrae surgery, Spinal Fusion veterinary
- Abstract
This report describes a partial ventral verte-brectomy and interbody fusion for a progressive hemivertebra disease using a ventral transthoracic approach in a 3.6-month-old male Labrador puppy. The goal of this article is to clarify the potential advantages of this uncommon surgical technique for this condition and to discuss its technical aspects.
- Published
- 2010
- Full Text
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17. Transient unilateral Horner's syndrome after epidural ropivacaine in a dog.
- Author
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Bosmans T, Schauvliege S, Gasthuys F, Marcilla MG, and Polis I
- Subjects
- Amides administration & dosage, Anesthetics, Local administration & dosage, Animals, Dogs, Female, Horner Syndrome chemically induced, Injections, Epidural adverse effects, Ropivacaine, Time Factors, Amides adverse effects, Anesthetics, Local adverse effects, Dog Diseases chemically induced, Horner Syndrome veterinary, Injections, Epidural veterinary
- Abstract
Observations: A left sided Horner's syndrome (ptosis, prolapse of the nictitating membrane and miosis) was observed in a 4-year-old female, neutered Beagle dog after epidural injection of 0.22 mL kg(-1) ropivacaine (0.75%) in 0.01 mL kg(-1) of saline during isoflurane anaesthesia. Clinical signs disappeared gradually and resolved completely 4 hours and 10 minutes after injection., Conclusions: The epidural injection of 0.22 mL kg(-1) ropivacaine (0.75%) in 0.01 mL kg(-1) of saline during isoflurane anaesthesia caused unilateral (left) Horner's syndrome in a 4-year-old female, neutered Beagle dog.
- Published
- 2009
- Full Text
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18. Acupuncture treatment for idiopathic Horner's syndrome in a dog.
- Author
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Cho SJ and Kim O
- Subjects
- Animals, Dogs, Female, Horner Syndrome therapy, Acupuncture Therapy veterinary, Dog Diseases therapy, Horner Syndrome veterinary
- Abstract
A one-year-old female English Cocker Spaniel dog with idiopathic Horner's Syndrome is described. The specific clinical signs in this specimen were miosis, ptosis, enophthalmos, and prolapsed nictitans for 2 days following sudden onset. According to history taking, ophthalmic, neurological, and radiological examination, the patient was diagnosed with idiopathic Horner's syndrome. Manual acupuncture treatment was applied to the dog on local points two times in 2 days. The local acupoints were ST-4 (Di Chang) and GB-1 (Tong Zi Liao). The day after the initial acupuncture treatment, clinical signs related to idiopathic Horner's syndrome had almost disappeared. The day after the second treatment, specific clinical signs were completely absent. During this period, the dog did not receive any orthodox treatment. Thus, it is suggested that manual acupuncture might be an effective therapy for idiopathic Horner's syndrome.
- Published
- 2008
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19. Bilateral Horner's syndrome in a dog with diabetes mellitus.
- Author
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Holland CT
- Subjects
- Animals, Diabetes Mellitus blood, Diabetes Mellitus diagnosis, Diabetic Neuropathies complications, Diabetic Neuropathies diagnosis, Dogs, Female, Horner Syndrome diagnosis, Horner Syndrome etiology, Diabetes Mellitus veterinary, Diabetic Neuropathies veterinary, Dog Diseases diagnosis, Horner Syndrome veterinary
- Published
- 2007
- Full Text
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20. Diagnostic ophthalmology. Bilateral preganglionic Horner's syndrome.
- Author
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Grahn BH, Mayer M, and Sandmeyer LS
- Subjects
- Animals, Diagnosis, Differential, Dogs, Horner Syndrome diagnosis, Male, Dog Diseases diagnosis, Horner Syndrome veterinary
- Published
- 2007
21. Small-cell carcinoma of the lung resembling a brachial plexus tumour.
- Author
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Ferreira AJ, Peleteiro MC, Correia JH, Jesus SO, and Goulão A
- Subjects
- Animals, Brachial Plexus, Carcinoma, Small Cell complications, Carcinoma, Small Cell diagnosis, Diagnosis, Differential, Dog Diseases diagnostic imaging, Dog Diseases pathology, Dogs, Female, Horner Syndrome veterinary, Immunohistochemistry veterinary, Lameness, Animal etiology, Lung Neoplasms complications, Lung Neoplasms diagnosis, Magnetic Resonance Imaging veterinary, Peripheral Nervous System Neoplasms diagnosis, Peripheral Nervous System Neoplasms veterinary, Radiography, Carcinoma, Small Cell veterinary, Dog Diseases diagnosis, Lung Neoplasms veterinary
- Abstract
A small-cell carcinoma of the lung was identified in a six-year-old female German shepherd dog with a history of chronic lameness of the left forelimb, Horner's syndrome and sensory deficits on the caudal portion of the left forelimb below the elbow. A mass, the exact location of which was difficult to ascertain, was identified during radiographic examination of the thorax. It was easily identified, using magnetic resonance imaging, as an apical tumour of the left lung with dorsal extension and involvement of paraspinal structures, such as spinal nerve roots C8 to T1 and the sympathetic trunk. Postmortem examination confirmed a mass in the left apical lobe of the lung, compatible with a diagnosis of small-cell carcinoma by histopathology and immunohistochemistry. This clinical presentation is similar to Pancoast syndrome described in humans.
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- 2005
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22. Neurologic evaluation of the ear.
- Author
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Cook LB
- Subjects
- Animals, Cat Diseases physiopathology, Cats, Central Nervous System Diseases diagnosis, Central Nervous System Diseases physiopathology, Deafness diagnosis, Deafness physiopathology, Deafness veterinary, Diagnosis, Differential, Dog Diseases physiopathology, Dogs, Ear anatomy & histology, Ear physiology, Ear Diseases diagnosis, Ear Diseases physiopathology, Facial Paralysis diagnosis, Facial Paralysis physiopathology, Facial Paralysis veterinary, Hemifacial Spasm diagnosis, Hemifacial Spasm physiopathology, Hemifacial Spasm veterinary, Horner Syndrome diagnosis, Horner Syndrome physiopathology, Horner Syndrome veterinary, Neurologic Examination veterinary, Vestibular Diseases diagnosis, Vestibular Diseases physiopathology, Cat Diseases diagnosis, Central Nervous System Diseases veterinary, Dog Diseases diagnosis, Ear Diseases veterinary, Vestibular Diseases veterinary
- Abstract
Diseases of the ear often cause signs of neurologic dysfunction because of damage of peripheral nervous system structures associated with the middle and inner ear. Vestibular dysfunction, facial paralysis, Horner's syndrome, and hearing deficits are the most common neurologic deficits that accompany middle and inner ear disease. Differentiating these signs from disease of the central nervous system is crucial for an accurate diagnosis and prognosis but can be difficult. Understanding the normal anatomy of the ear and its association with the brain is crucial to interpretation of the neurologic examination. This article reviews neurologic dysfunction commonly associated with diseases of the ear and differentiating these signs from central disease.
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- 2004
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23. Trigeminal and polyradiculoneuritis in a dog presenting with masticatory muscle atrophy and Horner's syndrome.
- Author
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Panciera RJ, Ritchey JW, Baker JE, and DiGregorio M
- Subjects
- Animals, Atrophy, Diagnosis, Differential, Dogs, Euthanasia, Horner Syndrome pathology, Mandibular Nerve pathology, Polyradiculoneuropathy pathology, Trigeminal Ganglion pathology, Trigeminal Nerve Diseases pathology, Dog Diseases pathology, Horner Syndrome veterinary, Masticatory Muscles pathology, Polyradiculoneuropathy veterinary, Trigeminal Nerve Diseases veterinary
- Abstract
A 9-year-old, spayed female, Airedale Terrier was euthanatized and necropsied after a progressive clinical course that included Horner's syndrome of the left eye and unilateral atrophy of the masticatory muscles. Although gross lesions were limited, a polyradiculoneuritis and ganglionitis that was most severe in the trigeminal nerves and ganglia were confirmed histologically. The inflammatory infiltrate consisted predominantly of macrophages and B and T lymphocytes that were phenotypically confirmed by immunostaining. Horner's syndrome was the result of damage to postganglionic sympathetic fibers that were incorporated in segments of the inflamed trigeminal nerve and its ophthalmic branch. Histologically, the character and distribution of the inflammation was similar to previously described syndromes of suspected immune-mediated etiology in humans and animals.
- Published
- 2002
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24. Horner's syndrome following vertical ramus osteotomy in a dog.
- Author
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Boydell P
- Subjects
- Animals, Diagnosis, Differential, Dog Diseases diagnosis, Dog Diseases surgery, Dogs, Horner Syndrome diagnosis, Horner Syndrome etiology, Male, Mandible innervation, Mandibular Neoplasms surgery, Mandibular Neoplasms veterinary, Orbit surgery, Orbital Neoplasms surgery, Orbital Neoplasms veterinary, Osteochondroma surgery, Osteochondroma veterinary, Osteotomy adverse effects, Postoperative Complications diagnosis, Postoperative Complications etiology, Dog Diseases etiology, Horner Syndrome veterinary, Mandible surgery, Osteotomy veterinary, Postoperative Complications veterinary
- Published
- 2001
- Full Text
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25. Horner's syndrome associated with Neospora infection.
- Author
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Boydell P and Brogan N
- Subjects
- Animals, Coccidiosis complications, Coccidiosis drug therapy, Dog Diseases drug therapy, Dogs, Female, Horner Syndrome drug therapy, Horner Syndrome etiology, Neospora growth & development, Tomography, X-Ray Computed veterinary, Clindamycin therapeutic use, Coccidiosis veterinary, Dog Diseases etiology, Horner Syndrome veterinary, Neospora pathogenicity
- Abstract
A working collie cross was presented with a three-month history of vague neurological signs and a right-sided Horner's syndrome. Denervation hypersensitivity testing suggested a first order syndrome. There was a significant positive titre to Neospora and clinical signs resolved completely following treatment.
- Published
- 2000
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26. Idiopathic horner syndrome in the golden retriever.
- Author
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Boydell P
- Subjects
- Animals, Diagnostic Techniques, Neurological veterinary, Diagnostic Techniques, Ophthalmological veterinary, Dog Diseases epidemiology, Dogs, Female, Horner Syndrome diagnosis, Horner Syndrome epidemiology, Incidence, Male, Prospective Studies, Remission, Spontaneous, United Kingdom epidemiology, Dog Diseases diagnosis, Horner Syndrome veterinary
- Abstract
Objectives: Various reports have noted a high incidence of idiopathic Horner syndrome in golden retriever dogs. The author seeks to document this condition in the breed., Materials and Methods: A prospective study was made of cases of Horner syndrome in dogs referred to the author throughout a 10-year period. As part of the general clinical, ophthalmic, and neurologic examination, denervation hypersensitivity testing was performed to localize the responsible lesion. Follow-up results were obtained in all cases by repeat examination or telephone contact., Results: Of 155 dogs in the study, 110 were golden retrievers, 100 of which were diagnosed as having idiopathic second order Horner syndrome. Ninety-five of the golden retrievers were male, some neutered. Signs resolved spontaneously in all cases within 6 months., Conclusions: There is a high incidence of idiopathic second order Horner syndrome in the male golden retriever.
- Published
- 2000
27. [Horner's syndrome in the dog: a retrospective study].
- Author
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van Hagen MA, Kwakernaak CM, Boevé MH, and Stades FC
- Subjects
- Administration, Topical, Age Factors, Animals, Breeding, Dogs, Female, Horner Syndrome drug therapy, Horner Syndrome epidemiology, Male, Phenylephrine administration & dosage, Phenylephrine therapeutic use, Retrospective Studies, Sex Factors, Sympathomimetics administration & dosage, Sympathomimetics therapeutic use, Dog Diseases drug therapy, Dog Diseases epidemiology, Horner Syndrome veterinary
- Abstract
A retrospective study was made of 43 dogs with Horner's syndrome (HS). In the group studied the golden retriever was found to be predisposed for Horner's syndrome. No predisposition in gender or age seemed to exist. Symptomatic treatment with topical 10% phenylephrine alleviates the clinical signs. Generally patients recover in 2 to 6 months.
- Published
- 1999
28. Arteriovenous malformation of the cervical spinal cord in a dog.
- Author
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Hayashida E, Ochiai K, Kadosawa T, Kimura T, and Umemura T
- Subjects
- Animals, Arteriovenous Malformations pathology, Dogs, Female, Horner Syndrome pathology, Spinal Cord blood supply, Spinal Cord pathology, Spinal Cord Diseases pathology, Arteriovenous Malformations veterinary, Dog Diseases pathology, Horner Syndrome veterinary, Spinal Cord Diseases veterinary
- Abstract
An 8-year-old female German Shepherd dog showed first order Horner's syndrome associated with progressive right-sided hemiplegia and mega-oesophagus. Intramedullary and leptomeningeal arteriovenous malformation (AVM) was identified in the cervical spinal cord. The morphological characteristics were arteriovenous shunting, intramedullary multiple thromboses and haemorrhage, non-inflammatory necrosis of white and grey matter around the shunt, and intervening neural gliosis with neovascularization. These findings suggested that the malformation induced a focal circulatory disturbance within the cervical spinal cord and that fatal thrombosis was responsible for the sudden onset of the nervous signs and progressive neurological deterioration. This is the first report of intramedullary spinal AVM in a dog., (Copyright 1999 W.B. Saunders Company Ltd.)
- Published
- 1999
- Full Text
- View/download PDF
29. Horner's syndrome in a puppy.
- Author
-
Boydell IP
- Subjects
- Animals, Dog Diseases diagnosis, Dogs, Horner Syndrome diagnosis, Birth Injuries veterinary, Dog Diseases congenital, Horner Syndrome veterinary
- Abstract
A puppy was presented with unilateral Horner's syndrome thought to have been in existence since the eyes first opened. No other clinical signs were evidence and the condition was attributed to trauma during assisted birth. All abnormalities resolved spontaneously by 11 weeks of age.
- Published
- 1998
- Full Text
- View/download PDF
30. Horner's syndrome following intrathoracic tube placement.
- Author
-
Boydell P, Pike R, Crossley D, and Torrington A
- Subjects
- Animals, Dogs, Drainage adverse effects, Drainage instrumentation, Horner Syndrome etiology, Thoracic Diseases therapy, Dog Diseases etiology, Drainage veterinary, Horner Syndrome veterinary, Thoracic Diseases veterinary
- Abstract
Two dogs developed unilateral Horner's syndrome attributable to the placement of a thoracic drainage tube. Signs resolved following removal of the chest drains.
- Published
- 1997
- Full Text
- View/download PDF
31. Horner's syndrome associated with a functional thyroid carcinoma in a dog.
- Author
-
Melián C, Morales M, Espinosa de los Monteros A, and Peterson ME
- Subjects
- Animals, Dog Diseases diagnostic imaging, Dog Diseases pathology, Dogs, Esophagus pathology, Eyelid Diseases pathology, Eyelid Diseases veterinary, Horner Syndrome complications, Horner Syndrome diagnosis, Lung Neoplasms secondary, Lung Neoplasms veterinary, Male, Polyuria complications, Polyuria veterinary, Prolapse, Radiography, Thyroid Gland pathology, Thyroid Neoplasms complications, Thyroid Neoplasms diagnosis, Trachea pathology, Dog Diseases diagnosis, Horner Syndrome veterinary, Thyroid Neoplasms veterinary
- Abstract
A seven-year-old entire male Irish setter was presented because of a neck mass, prolapse of the third eyelid and apparent drooping of the upper eyelid. Historical findings included increased appetite as well as polyuria and polydipsia for about two weeks. The most remarkable findings on physical examination were right-sided Horner's syndrome, pre-scapular lymphadenopathy and a large, ventral cervical mass. Lateral cervical radiographs showed a large, soft tissue opacity surrounding the trachea and retropharyngeal area which was causing displacement and narrowing of the cervical trachea and oesophagus. Results of thyroid testing suggested hyperthyroidism. At necropsy, a large, invasive tumour was identified in the ventral cervical region and multiple metastases of various sizes were detected in the lungs. Histopathological examination of the tumour revealed follicular thyroid carcinoma and confirmed widespread pulmonary metastasis.
- Published
- 1996
- Full Text
- View/download PDF
32. Horner's syndrome following cervical spinal surgery in the dog.
- Author
-
Boydell P
- Subjects
- Animals, Dog Diseases diagnosis, Dog Diseases physiopathology, Dogs, Female, Horner Syndrome diagnosis, Horner Syndrome etiology, Sympathetic Nervous System physiopathology, Cervical Vertebrae surgery, Dog Diseases etiology, Horner Syndrome veterinary
- Abstract
Two dobermanns exhibited Horner's syndrome following the surgical treatment of cervical spondylopathy. Denervation hypersensitivity testing demonstrated a 2nd order lesion in both. Spontaneous resolution occurred within one month.
- Published
- 1995
- Full Text
- View/download PDF
33. Idiopathic Horner's syndrome in the golden retriever.
- Author
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Boydell P
- Subjects
- Animals, Breeding, Dog Diseases epidemiology, Dogs, Female, Horner Syndrome diagnosis, Horner Syndrome genetics, Incidence, Male, Prospective Studies, United Kingdom epidemiology, Dog Diseases diagnosis, Dog Diseases genetics, Horner Syndrome veterinary
- Abstract
A prospective study was made of cases of idiopathic Horner's syndrome in dogs referred to the author. Over a six-year period the condition was recorded in 62 golden retrievers. Examination suggested that the lesions affected the preganglionic neuron.
- Published
- 1995
- Full Text
- View/download PDF
34. Horner's syndrome in dogs and cats: 100 cases (1975-1985).
- Author
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Kern TJ, Aromando MC, and Erb HN
- Subjects
- Animals, Cats, Dogs, Female, Horner Syndrome etiology, Male, Retrospective Studies, Cat Diseases etiology, Dog Diseases etiology, Horner Syndrome veterinary
- Abstract
The medical records of 74 dogs and 26 cats with Horner's syndrome (HS) that were admitted to the New York State College of Veterinary Medicine between January 1975 and October 1985 were reviewed. In dogs, but not cats, HS was associated significantly (P less than 0.01) with increasing age. Dogs with hypothyroidism (defined liberally but not rigorously), intracranial neoplasia, or thoracic neoplasia, cats with otitis media/interna (defined liberally), and dogs and cats with brachial plexus root avulsion were at greater risk for developing HS than were animals that were hit by a car. Dogs and cats with otitis externa were at less risk of developing HS than were animals that were hit by a car. The cause of HS could not be determined in 50% of dogs and 42.3% of cats. The results of topical adrenergic drug testing in dogs were inconclusive in localizing lesion site. In dogs and cats, HS appeared to be unassociated with gender, breed, or right vs left side. The important causes of HS in dogs and cats were trauma (hit by car), brachial plexus root avulsion, intracranial and thoracic neoplasia, and otitis media/interna.
- Published
- 1989
35. Fibrocartilaginous emboli as the cause of ischemic myelopathy in a dog.
- Author
-
Greene CE and Higgins RJ
- Subjects
- Animals, Arteries pathology, Dog Diseases pathology, Dogs, Embolism complications, Embolism pathology, Female, Hemiplegia etiology, Hemiplegia veterinary, Horner Syndrome etiology, Horner Syndrome veterinary, Ischemia etiology, Ischemia pathology, Spinal Cord pathology, Cartilage, Dog Diseases etiology, Embolism veterinary, Ischemia veterinary, Spinal Cord blood supply
- Abstract
Acute hemiplegia and Horner's syndrome developed in a 6-year-old female black Labrador Retriever 24 hours after a day of exercise. Radiographic, cerebrospinal fluid, and electromyographic studies did not detect the site or nature of the suspected cervical lesion. The dog showed no improvement after evaluation for 5 days on corticosteroid and antibiotic therapy. Gross and microscopic examination revealed the presence of an ischemic infarct in the C6 segment of the cervical spinal cord and associated fibrocartilaginous emboli. The nature of the clinical signs and the pathologic findings in this case are similar to previous reports of human and canine cases.
- Published
- 1976
36. Horner's syndrome in dogs and cats: 49 cases (1980-1986).
- Author
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Morgan RV and Zanotti SW
- Subjects
- Animals, Cat Diseases diagnosis, Cat Diseases etiology, Cats, Dog Diseases diagnosis, Dog Diseases etiology, Dogs, Female, Horner Syndrome diagnosis, Horner Syndrome epidemiology, Horner Syndrome etiology, Male, Retrospective Studies, Cat Diseases epidemiology, Dog Diseases epidemiology, Horner Syndrome veterinary
- Abstract
Medical records of 49 dogs and cats with Horner's syndrome were reviewed. Causes included head, neck, and chest trauma, chronic otitis, cranial thoracic mass, and injury attributable to cleaning of the external ear canal. Cause could not be delineated in 54.5% of the dogs. Numerous diagnostic tests and pharmacologic challenge exposure with epinephrine were used to localize the site of injury. Resolution of all clinical signs was observed in 36 animals and required a mean of 7.7 weeks.
- Published
- 1989
37. Letter: Horner's syndrome.
- Subjects
- Animals, Cats, Dogs, Horner Syndrome diagnosis, Cat Diseases diagnosis, Dog Diseases diagnosis, Horner Syndrome veterinary
- Published
- 1975
38. Bilateral trigeminal nerve paralysis and Horner's syndrome associated with myelomonocytic neoplasia in a dog.
- Author
-
Carpenter JL, King NW Jr, and Abrams KL
- Subjects
- Animals, Cranial Nerve Diseases etiology, Cranial Nerve Diseases pathology, Cranial Nerve Neoplasms complications, Cranial Nerve Neoplasms pathology, Dog Diseases pathology, Dogs, Horner Syndrome etiology, Horner Syndrome pathology, Leukemia, Myeloid complications, Leukemia, Myeloid pathology, Male, Paralysis etiology, Paralysis pathology, Cranial Nerve Diseases veterinary, Cranial Nerve Neoplasms veterinary, Dog Diseases etiology, Horner Syndrome veterinary, Leukemia, Myeloid veterinary, Paralysis veterinary, Trigeminal Nerve pathology
- Abstract
A 5-year-old male Doberman Pinscher had nasal stenosis, dropped mandible, bilateral atrophy of masseter and temporalis muscles, and Horner's syndrome caused by aleukemic myelomonocytic leukemia. Neoplastic cellular neurotropism, diffuse turbinate and nodular peribronchial infiltrate, and a hepatic portal infiltrative pattern similar to that of lymphoma were microscopic features of interest.
- Published
- 1987
39. Oculosympathetic paralysis (Horner's syndrome) in the dog.
- Author
-
Wowk BJ and Olson GA
- Subjects
- Animals, Dog Diseases physiopathology, Dogs, Horner Syndrome diagnosis, Horner Syndrome physiopathology, Mydriatics, Pupil physiopathology, Sympathetic Nervous System physiopathology, Dog Diseases diagnosis, Horner Syndrome veterinary
- Published
- 1979
40. Horner's syndrome in the dog and cat as an aid to diagnosis.
- Author
-
Jones BR and Studdert VP
- Subjects
- Adenocarcinoma complications, Adenocarcinoma veterinary, Animals, Ataxia complications, Ataxia veterinary, Cats, Dogs, Female, Horner Syndrome diagnosis, Horner Syndrome etiology, Leiomyosarcoma complications, Leiomyosarcoma veterinary, Lymphatic Metastasis, Male, Mediastinal Neoplasms complications, Mediastinal Neoplasms veterinary, Mouth Neoplasms complications, Mouth Neoplasms veterinary, Spinal Cord Diseases complications, Spinal Cord Diseases veterinary, Cat Diseases diagnosis, Dog Diseases diagnosis, Horner Syndrome veterinary
- Abstract
Four cases of Horner's syndrome, two in dogs and two in cats, are described. Miosis, ptosis, and enophthalmos were present in three of the cases and in addition, protrusion of the nictitating membrane was present in the fourth case. In the two cases described in cats, there was also evidence of peripheral vasodilation in the skin of the face on the same side as the Horner's syndrome.
- Published
- 1975
- Full Text
- View/download PDF
41. Current concepts in veterinary neuro-ophthalmology.
- Author
-
Scagliotti RH
- Subjects
- Animals, Brain Diseases physiopathology, Brain Diseases veterinary, Cats, Dogs, Horner Syndrome physiopathology, Horner Syndrome veterinary, Leukemia physiopathology, Leukemia veterinary, Leukemia Virus, Feline, Neurons, Afferent physiology, Neurons, Efferent physiology, Optic Nerve Diseases physiopathology, Optic Nerve Diseases veterinary, Physostigmine, Reflex, Pupillary, Visual Pathways, Waardenburg Syndrome physiopathology, Waardenburg Syndrome veterinary, Cat Diseases physiopathology, Dog Diseases physiopathology
- Published
- 1980
- Full Text
- View/download PDF
42. Peripheral neuropathy in diabetic bitch.
- Author
-
Misselbrook NG
- Subjects
- Animals, Diabetes Mellitus, Type 1 complications, Dogs, Female, Horner Syndrome etiology, Diabetes Mellitus, Type 1 veterinary, Diabetic Neuropathies veterinary, Dog Diseases etiology, Horner Syndrome veterinary
- Published
- 1987
- Full Text
- View/download PDF
43. A syndrome produced by dorso-lateral "explosions" of the cervical intervertebral discs.
- Author
-
Griffiths IR
- Subjects
- Animals, Cervical Vertebrae, Dogs, Female, Fever veterinary, Hemiplegia etiology, Hemiplegia veterinary, Horner Syndrome etiology, Horner Syndrome veterinary, Intervertebral Disc pathology, Intervertebral Disc Displacement complications, Intervertebral Disc Displacement diagnostic imaging, Intervertebral Disc Displacement pathology, Male, Motor Activity, Posture, Radiography, Sensory Deprivation, Dog Diseases diagnostic imaging, Dog Diseases pathology, Intervertebral Disc Displacement veterinary
- Published
- 1970
- Full Text
- View/download PDF
44. Clinico-pathologic conference from the School of Veterinary Medicine University of Pennsylvania.
- Subjects
- Animals, Dogs, Male, Dog Diseases, Horner Syndrome veterinary
- Published
- 1966
45. Small animal neuro-ophthalmology.
- Author
-
de Lahunta A
- Subjects
- Abducens Nerve physiology, Animals, Blindness veterinary, Cats, Cornea innervation, Dogs, Eyelids innervation, Geniculate Bodies physiology, Horner Syndrome veterinary, Nystagmus, Pathologic veterinary, Oculomotor Muscles innervation, Oculomotor Nerve physiology, Optic Chiasm physiology, Optic Nerve physiology, Optic Neuritis veterinary, Pupil innervation, Reflex, Pupillary, Strabismus veterinary, Trochlear Nerve physiology, Visual Cortex physiology, Cat Diseases physiopathology, Dog Diseases physiopathology, Eye innervation, Eye Diseases veterinary, Visual Pathways physiology
- Published
- 1973
- Full Text
- View/download PDF
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