Root artery ischemia syndrome that supplies blood to the cervical spinal cord
Introduction
Introduction to the rheumatic ischemia syndrome of the cervical spinal cord Anatomically, the root artery of the cervical segment mainly comes from the second segment of the vertebral artery and the ascending branch of the thyroid neck. Because it runs along the spinal nerve root, it is called the root artery. At the inner mouth of the root canal, the root artery is divided into The anterior and posterior root arteries are involved in the formation of the anterior central artery and the posterior spinal artery, respectively, and mainly supply blood to the cervical spinal cord in the 4th to 7th segments of the neck. Symptoms of the involvement of the branches of the root arteries are consistent with the "pre-parental artery ischemic syndrome" and "posterior spinal cord ischemia syndrome" described above, and therefore will not be described again. This section focuses on a series of problems that arise after the root artery is blocked. basic knowledge The proportion of illness: 0.005% Susceptible people: no specific population Mode of infection: non-infectious Complications:
Cause
Causes of rheumatoid ischemia syndrome supplying blood to the cervical spinal cord
(1) Causes of the disease
The disease is caused by traumatic injury or tumor compression of the root and vertebral arteries.
(two) pathogenesis
1. Vascular disease is caused by vascular embolism caused by hardening of the arteries, atherosclerosis, etc. It is less common, and it is mostly gradual, the course of disease is generally longer, and the general condition is mostly poor.
2. Injury or surgical injury If the vertebral artery and the thyroid neck ascending branch of the root artery are injured, it may cause paralysis in the early stage. In addition to orthopedic surgery, general surgery, otolaryngology and other operations may also occur.
3. When the tumor is located in the pedicle or the posterior aspect of the vertebral body and the root artery or vertebral artery can also cause the root artery to be compressed.
Prevention
Prevention of rheumatoid ischemia syndrome supplying blood to cervical spinal cord
The key to the disease is prevention, especially when the site is being treated (especially for tumor resection). Do not ligature the blood vessels during surgery.
Complication
Root arterial ischemic syndrome complications of blood supply to the cervical spinal cord Complications
There are often mergers.
Symptom
Symptoms of rheumatoid ischemia syndrome supplying blood to the cervical spinal cord Common symptoms Sensory disturbance hypersensitivity reflex hyperreflexia and temperature sensation...
Its performance is not only related to the degree of compression (resistance) of the root artery, but also related to the anatomical state of the root artery. Only one of the root arteries has severe symptoms; at the same time, there are many pairs of root arteries, and even symptoms may not occur.
1.
Typical peripheral sputum below the obstructed plane, mostly sudden, and progresses rapidly, even in just a few days, can reach severity in a few weeks.
2. Sensory disorder
The plane is basically the same as the former, and it starts to show numbness, pain and hyperesthesia. In severe cases, it is painful, and most of the temperature is gone.
3. Autonomic dysfunction
Mainly due to the blocked spinal cord conduction function and the sympathetic nerve fibers on the peripheral wall of the root artery.
4. Reflection
The shallow reflection is dull or disappears, the deep reflection is hyperthyroidism, pathological reflex can occur, and the Hoffmann sign is mostly positive.
Examine
Examination of rheumatoid ischemia syndrome supplying blood to the cervical spinal cord
Angiography, digital subtraction angiography, understanding of the root artery, magnetic resonance examination to understand the softening and changes of the spinal cord.
Diagnosis
Diagnosis and diagnosis of rheumatic ischemia syndrome of blood supply to cervical spinal cord
diagnosis
Mainly based on the following four points:
1. The cause of the disease immediately after surgery or head and neck trauma should be considered, the possibility of obstruction of the blood vessel should be considered, early surgical exploration should be carried out, and the cause should be eliminated.
2. Clinical features Among the above four symptoms, motor dysfunction and reflex abnormality are the earliest and obvious, and should be checked.
3. Angiography is mainly determined by digital subtraction angiography (DSA). The general MRA technique cannot obtain a clear image of the root artery.
4. Magnetic resonance on the spinal cord has been softened, degeneration or other lesions need to be judged, can be judged from its lesion range and other imaging characteristics.
