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Postmortem Examination in Case of Asphyxial Death
Published in Sudhir K. Gupta, Forensic Pathology of Asphyxial Deaths, 2022
While dissection, esophagus can be dissected first. Thyrohyoid membrane should be dissected to release the connection between hyoid bone and the larynx. Soft tissues adherent to the hyoid bone and the laryngeal cartilages have to be removed for proper visualization of hemorrhages around fracture site. In case of any need of microscopic evaluation, the portion has to be subjected to histological examination. Some authors suggest a radiological examination of the eviscerated neck block in order to better appreciate the bony structures for evidence of any injury; the vertebral column hinders proper visualization when radiological examination like X-ray is done in an in-situ position of the neck.
Thyroid disease
Published in Neeraj Sethi, R. James A. England, Neil de Zoysa, Head, Neck and Thyroid Surgery, 2020
The internal branch pierces the thyrohyoid membrane with the superior laryngeal artery. It supplies sensation to the supraglottis. The subglottis receives sensory innervation from the recurrent laryngeal nerve. The glottis receives sensory innervation from both nerves. The recurrent laryngeal nerve (also a branch of the vagus) loops under the aortic arch on the left and the subclavian artery on the right. The left nerve travels in the tracheo-oesophageal groove lying deep to the superior parathyroid gland and enters the larynx at the cricothyroid joint. The right nerve travels at a more oblique angle, usually due to the effect of travelling under the subclavian artery, and also enters the larynx at the cricothyroid joint. It supplies all intrinsic muscles of the larynx. This nerve has to be identified and preserved during dissection of the thyroid lobes and parathyroid glands.
Surgical Anatomy of the Neck
Published in John C Watkinson, Raymond W Clarke, Terry M Jones, Vinidh Paleri, Nicholas White, Tim Woolford, Head & Neck Surgery Plastic Surgery, 2018
Laura Warner, Christopher Jennings, John C. Watkinson
The hyoid is an important bony landmark in the neck. Sitting in the midline of the neck, superior to the thyroid cartilage, the hyoid is a horseshoe-shaped bone with a central body and paired greater and lesser cornus. The greater cornu acts as a guide to the lowermost extent of the marginal mandibular branch of the facial nerve and the level of the hyoid divides nodal levels II and III. The hyoid bone has many muscular attachments; the mylohyoid, geniohyoid and hyoglossus insert onto the superior aspect of the body of the hyoid, whereas the omohyoid, sternohyoid and thyrohyoid muscles insert onto the inferior border. Fibres of the middle constrictor muscles insert into the greater cornu and the stylohyoid ligament attaches to the lesser cornu. Inferiorly the thyrohyoid membrane connects the body of the hyoid to the thyroid cartilage.
Ultrasonography versus conventional methods (Mallampati score and thyromental distance) for prediction of difficult airway in adult patients
Published in Egyptian Journal of Anaesthesia, 2020
B. S. Abdelhady, M. A. Elrabiey, A. H. Abd Elrahman, E. E. Mohamed
US-DSE was measured at the thyrohyoid membrane level (midway between the hyoid bone and thyroid cartilage) using the linear probe of General Electric; GE, “ LOGIQ P5” ultrasound machine with frequency of 10–13 MHz in transverse plane with varying degrees of cephalad/caudal angulation when patients were in supine position with neutral head and neck without a pillow. Patients were instructed to keep their mouth closed and to breathe slowly during measurements to minimize errors during respiration. The Epiglottis was identified at the thyrohyoid membrane level as a linear hypoechoic structure . Its posterior border is delineated by a brighter linear air-mucosa interface and the anterior border is delineated by the hyperechoic pre-epiglottic space. Distance in centimeters was measured from the skin surface to the middle axis of the highest part of epiglottis through the thyrohyoid membrane.
Chondrolaryngoplasty in transgender women: Prospective analysis of voice and aesthetic satisfaction
Published in International Journal of Transgender Health, 2022
Sydney R. Horen, Alireza Hamidian Jahromi
In addition to concerns about vocal cord protection, the authors give few details regarding their perichondrial or subperichondrial incisions. Dissection should be carried out carefully here in order to avoid damage to the superior laryngeal nerve and preserve the attachment of the thyrohyoid membrane to the perichondrium of the posterior thyroid cartilage. Subperichondrial elevation should be performed internally and externally in order to avoid hematoma formation on the inner side. While original studies (Wolfort & Parry, 1975) stressed these considerations, this most recent report and many prior studies have left out these important details.
Surgical treatment of T2-3 posterior hypopharyngeal carcinoma with preservation of laryngeal function
Published in Acta Oto-Laryngologica, 2021
Ling Chen, Yu Si, Peiliang Lin, Zhong Guan, Wenying Zhu, Haifeng Liang, Qian Cai
Indications: The tumor invaded the lateral wall of pyriform sinus, so the lateral wall of pyriform sinus and thyroid cartilage plate needed to be removed. The tumor invaded pyriform sinus on one side. The thyrohyoid membrane of the contralateral side was retained through the hyoid approach. The continuity of the larynx and the base of tongue was maintained. The superior laryngeal nerve entering the ipsilateral hypopharynx was separated and preserved as far as possible.