Mechanical and larynx paralysis is the larynx phenomenon that cannot perform the function of speaking, breathing and protecting airways at different degrees. The larynx paralysis may be nervous or muscle paralysis
Most of the laryngeal paralysis is a regression of neurological damage, which dominates the larynx muscles (rear funnel muscles). Lesions may be one side or larynx opening 2 on many different reasons
Causes of Mechanical open larynx's disease
Causes of laryngeal opening is divided into central causes and peripheral causes
The central reason
Acute lesions: Virus (most commonly is polio encephalitis); Due to toxicity or oxygen deficiency (usually from the cause of vascular vessels such as brain injury due to poisoning coma, severe brain injury, oxygen deficiency surgery on the brain area or using Barbituric sleeping pills).
Progressive damage: Syphilis; Forms of degenerative lesions (muscle atrophy, Charcot disease); Damage to cerebellum onions, inflammation of the spinal cord, paralysis, deformity (empty onion, Arnold-chiari syndrome) or tumor metastatic brain; ...
peripheral cause:
Surgery: surgery in the neck, especially thyroid surgery such as cutting the entire thyroid is a common cause . In addition, esophagus or trachea surgery is also at risk of larynx opening.
Due to the neck tumors such as esophagus or tumor in thyroid cancer, antique trachea cancer, lung cancer metastasis, mediastinum tumors
Symptoms of Mechanical open larynx's disease
For larynx paralysis, typical symptoms when the onset is a sudden loss of patient, after a few days, it is possible to speak but the voice is changed in volume, Sound or double voice. Gradually the voice will recover closer to normal thanks to the compensation of the larynx nerve opposite
If larynx paralysis on both sides (very rare) will start with sudden shortness of breath due to the muscle paralysis of the larynx to prevent air into the lungs , then the muscle closed was also paralyzed and the two bars returned to the intermediate position. At that time, the patient will stop breathing but cannot speak with choke and coughing without sound
Patients with muscle paralysis open the larynx will lose the lung protection reflex, so water and food will fall into the lower respiratory tract, causing pneumonia or lung abscess
Laryngeal nerve paralysis in some cases may be accompanied by some other skull nerves such as:
Paralysis with pharyngeal paralysis, muscular muscles and muscle ladder one inside Schmidt syndrome due to mental lesions in the brain
Laryngeal paralysis accompanied by maids and tongue with the same inside Jackson syndrome
If the cause is due to muscle paralysis, the patient will manifest open muscle syndrome: difficulty laryngeal breathing accompanied by suffocation while the voice does not change or muscle paralysis Close: The patient is not difficult to breathe but does not speak out. Paralysis of individual muscles often make the voice husky and small.
People at risk for Mechanical open larynx's disease
Mechanical and larynx can be encountered in the following objects:
Patients with acute viral injuries or congenital injuries or malformations in the brain area
Patients with poisoning
The highest risk object is the surgical group in the neck or have neck tumors
Prevention of Mechanical open larynx's disease
In surgery or tricks in the neck and trachea should avoid damaging the nerves that dominate the larynx or cause injury to the larynx
Need to pay attention to early detection and thorough treatment of medical diseases such as tuberculosis, syphilis
Diagnostic measures for Mechanical open larynx's disease
For diagnosis to determine the larynx open muscles, it is necessary to rely on clinical symptoms and tests
The diagnosis of one side of the rod laces
The patient suddenly started with a weak voice, whispering and intensity but some still had a high intensity voice due to the self -clear compensation mechanism Of course
In addition, the patient also has difficulty swallowing especially with liquid due to damage to the larynx nerve or short breath and the feeling of steam when saying
Indirect larynx of the patient see one side of a fixed bar, the remaining wire works normally, the bar opened about 5 mm
Diagnosis of the rods on both sides
Symptoms onset slowly with a mild, increased breathing difficulty when exertion and drama when a collective patient Thao, cough, laugh
In a stable stage, shortness of breath is the main symptom: shortness of breath, inhalation, and pull the muscles of memory and upper blow. Severe shortness of breath can cause patients to cyanosis and mental disorders. The patient's voice is still normal
Indirect larynx to observe the loss of two normal bars near the middle line, every time inhaling the bar slot, it will only open up to 2-3 mm, when broadcast, 2 -sounded sounds
Tests need to be performed
Ancient ultrasound: can detect neck tumors
MRI in the neck or brain: Tumor detection is the cause of damage
Basic tests such as blood formula, blood biochemistry, thyroid function or respiratory function used for evaluation before treatment rather than diagnostic conditions
Mechanical open larynx's disease treatments
Principle of treatment of larynx muscle paralysis is to restore the ventilation of the airway
Surgical treatment
Surgery to remove U is the cause of the disease and monitor the recovery of the rods
If you do not find the cause can use the injecting technique in the rods of different materials for temporary or permanent treatment
Endotoxic surgery: Use a needle to fix the bar or cut the laser rod, cut the cartilage with the larynx or cut the back of the bar through the micro -sink Surgery
Surgery through the larynx surgery: can be fixed with funnel cartilage or cutting cartilage and fixing the rods
medical treatment
paralysis on one side: using the voice training method is conducted and monitored by the coaching specialist for 6-8 weeks and Each curriculum is 30-40 minutes
Paralysis of two bars: Medical treatment is only supportive for patients to recover faster after surgery
See also:
laryngitis: Causes, symptoms, diagnosis and treatment
larynx polyps: Causes, symptoms, diagnosis and treatment
laryngeal cancer: Causes, symptoms, diagnosis and treatment
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