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A superior laryngeal nerve palsy changes the pitch of the voice and causes an inability to make explosive sounds due to paralysis of the cricothyroid muscle. If no recovery is evident three months after the palsy initially presents, the damage is most likely to be permanent.
Currently, there are four types of implant procedures which are used to perform type 1 thyroplasty. Montgomery Thyroplasty Implant system. This system was discovered after years of research and the main advantage of this implant system is that it eliminates the process of customizing the implant at the time of surgery.
Flexible Endoscopic Evaluation of Swallowing with Sensory Testing (FEESST), is essentially a Flexible Endoscopic Evaluation of Swallowing (FEES) procedure with a formal sensory test (also known as laryngopharyngeal sensory testing) protocol included used to elicit the Laryngeal Adductor Reflex (LAR) directly using air pulses or direct touch with an endoscope.
Vocal cord paresis, also known as recurrent laryngeal nerve paralysis or vocal fold paralysis, is an injury to one or both recurrent laryngeal nerves (RLNs), which control all intrinsic muscles of the larynx except for the cricothyroid muscle. The RLN is important for speaking, breathing and swallowing.
Diaphragm (innervated by phrenic nerve) and external intercostal muscles (innervated by segmental intercostal nerves) contract, creating a negative pressure around the lung. Air rushes into the lungs in order to equalise the pressure. The glottis closes (muscles innervated by recurrent laryngeal nerve) and the vocal cords contract to shut the ...
The external branch of the superior laryngeal nerve innervates the cricothyroid muscle. Motor innervation to all other muscles of the larynx and sensory innervation to the subglottis is by the recurrent laryngeal nerve. While the sensory input described above is (general) visceral sensation (diffuse, poorly localized), the vocal cords also ...
The inferior pharyngeal constrictor muscle can be supplied by branches from the pharyngeal plexus, [4] the recurrent laryngeal nerve, the external branch of the superior laryngeal nerve, or a combination of these (the recurrent laryngeal nerve being the most common innervation of the cricopharyngeal part). [5]
Recurrent laryngeal nerve resection involves removing a section of the recurrent laryngeal nerve. [46] Recurrent laryngeal nerve avulsion is a more drastic removal of sections of the nerve, [46] and has positive outcomes of 80% at three years. [42] SLAD-R is effective specifically for adductor spasmodic dysphonia, for which it has shown good ...