Ultrasonographic evaluation of Cricoarytenoideus lateralis muscle in Standardbred horse

Authors : Fulvio LAUS, Emanuele PAGGI, Matteo CERQUETELLA, Beniamino TESEI

Pages : 655-658

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The cricoarytenoideus lateralis muscle insert ignore into journalissuearticles values(CALM); is an adductor of the arytenoid cartilages but is not directly involved in the pathogenesis of recurrent laryngeal neuropathy insert ignore into journalissuearticles values(RLN); as the abductor cricoarytenoideus dorsalis muscle insert ignore into journalissuearticles values(CADM); is. Nevertheless, the CALM is the first muscle to experience a neurogenic atrophy in the course of RLN and this feature explains its potential importance in RLN diagnosis. On 30 gelding and 30 female Standardbred horses weighing about 500 kg and aged between 3 and 9 years, an ultrasound examination of the larynx was performed in order to assess shape, size, and echogenicity of the CALMs. The mean width, thickness, and area of the muscle were respectively 1.42 cm, 1.23 cm, and 1.36 cm2 for the right side and 1.40 cm, 1.21 cm, and 1.34 cm2 for the left side. No differences were found in relation to sex, age, or difference between right and left muscle. Focal calcifications of thyroid cartilage prevented visualization of the muscles, especially in females.
Keywords : Key words Horse, larynx, ultrasonography, hemiplegia, diagnosis