Symptoms and treatment of unilateral labyrinthitis in a calf

Mahin, L

doi:10.1136/vr.107.19.448

Cited by 124 publications

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“…In previous cases, affected calves have been treated with bulla osteotomy using lateral and ventral approaches [ 6 , 7 , 8 , 16 , 17 , 18 ]. Two types of lateral bulla osteotomy (LBO) have been reported.…”

Section: Introductionmentioning

confidence: 99%

“…However, these methods are so invasive that they generate a high probability of postoperative complications such as neurological disturbances, e.g., issues with the facial nerve, hypoglossal nerve, and vestibular nerve [ 10 , 15 , 20 ]. Thus, care should be taken to avoid injury of the facial arteries and nerves located on the surgical courses while performing both types of LBOs [ 15 , 16 , 17 ]. Additionally, LBOs with total ear canal ablation are applicable to ruminants with concurrent involvements of otitis externa and otitis media/interna, allowing the removals of both lesions [ 10 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

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Diagnostic and Therapeutic Evaluations of Computed Tomography in Three Calves with Unilateral Otitis Media Treated with Ventral Bulla Osteotomy

Tsuka

Amaha

Okamoto

2022

Veterinary Sciences

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This case report describes the clinical utility of computed tomography (CT) in preoperative evaluation of otitis media in three calves, each exhibiting unilateral head tilt and ear droop. Of the three animals examined by CT, right-sided and left-sided involvements of this disease could be diagnosed in two animals and one animal, respectively, as represented by the accumulations of hyperattenuating contents within the extended tympanic bulla. These cases were treated with a ventral bulla osteotomy, which was conducted between the sternothyroid muscle and the omohyoid muscle via an incision made caudally to the area of the thyroid cartilage. The postoperative outcome was satisfactory in one case. However, the remaining two cases showed unsatisfactory outcomes; one calf died on the 10th postoperative day, as it was already seriously ill. The other animal died suddenly during surgery, potentially due to stimulation of the vagus nerve. The use of CT could allow effective visualization of unilateral lesions, proving helpful for the recommendation of surgical intervention. Based on the unfavorable results in two cases, we note that to prevent surgical complications, the clinical applicability of CT such as the creation of severity criteria and development of imaging-assist procedure should be advanced.

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