Disorders of the Face, Tongue, Esophagus, Larynx, and Ear

Lorenz, Michael D.

doi:10.1016/b978-1-4377-0651-2.10009-8

Cited by 3 publications

(5 citation statements)

References 162 publications

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“…Postoperative airway endoscopy was not performed for the two horses that were excluded from subsequent studies. Laryngeal hemiplegia may be a consequence of damage to the recurrent laryngeal nerve or to the vagus nerve within the vagosympathetic trunk . We did not observe other clinical signs related to damage of the vagosympathetic trunk, such as Horner's syndrome or dysfunction of the pharynx .…”

Section: Discussioncontrasting

confidence: 59%

“…Laryngeal hemiplegia may be a consequence of damage to the recurrent laryngeal nerve or to the vagus nerve within the vagosympathetic trunk . We did not observe other clinical signs related to damage of the vagosympathetic trunk, such as Horner's syndrome or dysfunction of the pharynx . Therefore, we believe that damage to the recurrent laryngeal nerve was more likely than damage to the vagus nerve.…”

Section: Discussionmentioning

confidence: 57%

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Modified technique for common carotid artery transposition in standing horses

et al. 2016

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Section: Discussioncontrasting

confidence: 59%

Section: Discussionmentioning

confidence: 57%

Modified technique for common carotid artery transposition in standing horses

et al. 2016

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“…For inclusion, cases had to satisfy the following criteria: a complete medical record that documented physical and neurological examination findings from which a neuroanatomic diagnosis consistent with a lesion affecting the trigeminal nerve or ≥1 of its branches could be made and an archived MRI of the head that was available for review. To be consistent with the neuroanatomic diagnosis of a deficit involving the trigeminal nerve, all cases had to have visual evidence of unilateral or bilateral atrophy of the temporalis and masseter muscles alone or in conjunction with hypalgesia or analgesia of the skin in the cutaneous areas of ≥1 of the branches of the trigeminal nerve (mandibular, maxillary, ophthalmic nerves) . The MRI evaluations were performed using a 3.0 T unit (3.0 T Signa HDx) at the University of Georgia or a 1.0 T unit (GE Genesis Signa) or 1.5 T unit (GE signa Excite) at Red Bank Veterinary Hospital.…”

Section: Methodsmentioning

confidence: 99%

Prevalence of Effusion in the Tympanic Cavity in Dogs with Dysfunction of the Trigeminal Nerve: 18 Cases (2004–2013)

Kent

Glass²,

Lahunta³

et al. 2013

Veterinary Internal Medicne

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Background: Animals with disorders involving the trigeminal nerve or its nuclei in the brainstem can have effusion in the tympanic cavity ipsilateral to the side of the neurological deficits. The tensor veli palatini muscle (TVP), innervated by the mandibular branch of the trigeminal nerve, opens the pharyngeal orifice of the auditory tube. With denervation of the TVP, dysfunction of the auditory tube may occur, which could lead to effusion.Hypothesis/Objectives: To determine the prevalence of effusion in the tympanic cavity in dogs with disorders involving the trigeminal nerve.Animals: Eighteen client-owned dogs were evaluated retrospectively. Methods: Retrospective study.Results: Diagnostic imaging databases were searched for dogs having undergone magnetic resonance imaging (MRI) evaluation for signs referable to dysfunction of the trigeminal nerve. Signalment and neurological examination findings were recorded. The MRI study was evaluated for the presence or absence of effusion. MRI characteristics of the affected trigeminal nerve and the muscles of mastication were recorded. Based on the location of the trigeminal nerve lesion, dogs were divided into three categories: brainstem, trigeminal canal, or extracranial. Eighteen dogs met the inclusion criteria. Six of 18 dogs (33%) had effusion in the tympanic cavity ipsilateral to the affected trigeminal nerve.Conclusion and Clinical Importance: A substantial proportion of dogs with a lesion affecting the trigeminal nerve had effusion in the tympanic cavity. This finding likely represents denervation of the TVP muscle, which may have led to dysfunction of the auditory tube.

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“…The diagnosis of laryngeal paralysis is relatively straightforward and it is based on the observation of the larynx during all phases of respiration. Normally, the vocal cords and arytenoid cartilage abduct during inspiration (MacPhail and Monnet, 2009;Millard and Tobias, 2009;Lorenz et al, 2011). An observation of laryngeal function in dogs and cats is performed using transoral visualization (Radlinsky et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…The depth of anesthesia and choice of anesthetics are critical for proper evaluation, and an alternative anesthetic includes propofol (Jackson et al, 2004). If doubts are encountered during evaluation, doxapram, a centrally acting respiratory stimulant, may aid in the diagnosis of laryngeal paralysis in dogs by increasing the respiratory effect and possibly increasing arytenoid cartilage movements (Miller et al, 2002;Tobias et al, 2004;Lorenz et al, 2011). The dog should be provided with supplemental oxygen during the initial assessment, and in most cases, sedation will be needed (Millard and Tobias, 2009).…”

Section: Introductionmentioning

confidence: 99%

Laryngeal stent for acute and chronic respiratory distress in seven dogs with laryngeal paralysis

Ricart¹,

Rodríguez²,

Duré³

2020

Open Vet J.

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Background: Laryngeal paralysis, failure of arytenoid cartilage, and vocal fold abduction are commonly seen in older medium to large breed dogs. Observation of laryngeal function in dogs and cats is performed by transoral visualization. There are a variety of surgical techniques; aspiration pneumonia is the most common complication associated with surgical correction of laryngeal paralysis. The aim of this case series is to report on the placement of a laryngeal silicone stent in seven dogs with laryngeal paralysis and its use as an alternative treatment of respiratory distress caused by laryngeal paralysis and/or its use for laryngeal stenosis as complication of laryngeal paralysis surgery.Case description: Seven dogs presented with either episode of gagging, mild-to-severe inspiratory distress, or cyanosis because of a laryngeal paralysis or laryngeal stenosis. In each case, the laryngeal paralysis was diagnosed by direct laryngoscopy. They were treated with a silicone laryngeal stent (Stening®) that substantially improved the clinical signs. Each dog had a different outcome because of other pathologies; however, the laryngeal pathology was successfully treated with the stent.Conclusion: The placement of the laryngeal stent is an easy technique to learn and practice, it could avoid the lifethreatening complications of the laryngeal paralysis at the acute phase, and it could be a noninvasive and long-term alternative therapy for laryngeal paralysis in dogs. The results in these clinical cases are encouraging for considering the laryngeal stent as a therapeutic alternative. Key words: Canine, Polyneuropathy, Prosthesis, Surgery.

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Disorders of the Face, Tongue, Esophagus, Larynx, and Ear

Cited by 3 publications

References 162 publications

Modified technique for common carotid artery transposition in standing horses

Modified technique for common carotid artery transposition in standing horses

Prevalence of Effusion in the Tympanic Cavity in Dogs with Dysfunction of the Trigeminal Nerve: 18 Cases (2004–2013)

Laryngeal stent for acute and chronic respiratory distress in seven dogs with laryngeal paralysis

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