Laryngeal Paralysis

Laryngeal paralysis, A clinical manifestations, and not a separate disease. When the jets motor nerve (RLN) is jeopardized, there can be vocal outreach, or within the muscle tension or relaxation three types of paralysis. Clinical longer trip because of the left recurrent laryngeal nerve, it left vocal cord paralysis common.
Etiology
Nerve damage suffered by the different sites, can be divided into central and peripheral two, with peripheral common.
(1) central: laryngeal movement on both sides of the cerebral cortex is central nerve bundle with the lateral link suspected nuclear, it muscle accept impulses from the cerebral cortex on both sides, thus cortex lesions caused by laryngeal paralysis, clinical extremely rare. Cerebral hemorrhage, basilar artery aneurysm, posterior fossa inflammation, and the medulla oblongata bridge brain tumor can cause vocal cord paralysis.
(2) peripheral: Where recurrent laryngeal nerve lesions or mainly occurred in the left vagus nerve separation of the jugular foramen and the recurrent laryngeal nerve before any site, paralysis caused by the jets are peripheral. The skull base fractures, thyroid surgery, neck and throat of trauma, throat, neck or skull base benign and malignant tumors oppression, or mediastinal metastatic esophageal cancer, nasopharyngeal carcinoma invading the skull base, the Department of tuberculosis pulmonary apex adhesion , pericarditis, peripheral neuritis, and so can cause vocal cord paralysis.
Clinical manifestations
(1) incomplete unilateral paralysis: The main obstacle for the vocal outreach, and not significantly more symptoms. Under indirect laryngoscopy see side of the center line of recent announcements Habitat, when not inspiratory outreach, pronunciation can be closed when the vocal cords.
(B) complete unilateral paralysis: outreach and vocal side to function within disappeared. Check see announcements in the next fixed in place, the arytenoid cartilage forward, vocal than the contralateral side low voice announcements when not closed, unable to voice hoarse.
(C) bilateral incomplete paralysis: rare, more jets for thyroid surgery or trauma induced. Announcements on both sides of outreach and can be near each other in the middle, a small fissure - glottis, patients can be asymptomatic calm, but in the sense of physical activity often breathing difficulties. Once upper respiratory infection can be serious breathing difficulties.
(4) Bilateral complete paralysis: Bilateral vocal Habitat adjacent median, we can not close, nor outreach, unable hoarse voice, the general respiratory normal, but food, saliva easy INHALED lower respiratory tract, cause choking.
(5) the resumption of bilateral vocal cord paralysis: was particularly prevalent in the functional Aphonia, pronunciation, the vocal cords can not close, but cough audio.
Vocal cord paralysis and functional Aphonia identification:
(1) most of vocal cord paralysis side of the bilateral - see, and functional within Aphonia for the resumption of bilateral vocal cord paralysis.
(2) Functional Aphonia can find certain lure tone, such as angry, grief, such as excessive.
(C) Functional Aphonia indirect laryngoscopy in the inspection, so that patients with cough, vocal normal activities.
(4) Functional Aphonia hinted therapy effective.
Treatment
Vocal cord paralysis should address the cause of their disease treatment. Unilateral incomplete paralysis, respiratory pronunciation no obvious obstacles, and often do not have to therapy; unilateral complete paralysis, such as compensatory time can not, and patients to improve pronunciation, in the vocal submucosal injection Teflon (teflon ), capacitive, such as fat or collagen fiber broadens the vocal cords, to move closer to the center line. Bilateral outreach paralysis, if breathing difficulties, should be held tracheotomy, after re-correction surgery.