Posterior Spinal Artery Ischemia Syndrome
Introduction
Introduction to posterior spinal cord ischemia syndrome Clinically, the central nervous system ischemic syndrome is less common than the anterior spinal cord, and the symptoms are mild and the diagnosis is difficult. basic knowledge The proportion of illness: 0.005% Susceptible people: no specific population Mode of infection: non-infectious Complications: ataxia
Cause
Causes of posterior spinal cord ischemia syndrome
(1) Causes of the disease
Violence from the back of the spinal canal, fractures, and tumor growth that grows too fast can cause the disease to occur.
(two) pathogenesis
Trauma
Mainly from the rear of the violence, causing laminar fractures, followed by compression of the dural sac and then to the posterior spinal cord, so that the blood supply is blocked, generally more than one side, rarely bilaterally affected at the same time.
2. Tumor
Tumors from the lamina or behind the spinal canal, if they grow too fast, and invade the posterior spinal artery, can also cause blood supply to be blocked.
3. Other
Adhesive bands including subarachnoid space, parasitic cysts in the spinal canal, traumatic hematoma and vascular diseases can affect the posterior spinal artery branch.
Prevention
Posterior spinal cord ischemia syndrome prevention
There is no effective preventive measure for this disease. Early detection and early diagnosis are the key to the prevention and treatment of this disease.
Complication
Posterior spinal cord ischemia syndrome Complications, ataxia
Infectious ataxia can occur.
Symptom
Posterior spinal cord ischemia syndrome symptoms common symptoms sensory disturbance deep sensory disorder sensory ataxia tremor sensation separation
If the posterior spinal artery is completely occluded, it mainly causes the ipsilateral posterior horn, and the posterior cord softens the sign.
Sensory disorder
The deepest feeling is the most affected, the higher the plane, the more obvious the symptoms, the main symptoms are:
(1) Deep sensory disorder: severe tremor, positional sensation and joint sensation can completely disappear.
(2) Shallow sensory disorder: segmental shallow sensory separation may occur, that is, the sense of touch exists and the painful sense disappears.
(3) Other symptoms: including sensory ataxia, etc. can occur at the same time.
2. Exercise
Generally, there is no effect, mainly because the blood supply of the pyramidal tract is derived from the anterior spinal artery and the arterial ring. The simple involvement of the posterior spinal artery usually has little effect.
3. Reflection changes
Below the damage segment, the sputum reflection weakens or disappears.
In the absence of selective angiography, it is generally difficult to diagnose, and experienced physicians can only infer the disease based on the etiology and clinical symptoms. Therefore, those with surgical indications can be treated with decompression and postoperative efficacy. Observe and confirm the diagnosis.
Examine
Examination of posterior spinal cord ischemia syndrome
X-ray, CT, MRI examination can exclude fractures and space-occupying lesions.
Diagnosis
Diagnosis and diagnosis of posterior spinal cord ischemia syndrome
It is mainly related to the primary spinal cord disease and local occupying lesions that affect the posterior horn. In fact, the latter is also one of the causes of this disease. Therefore, from the perspective of treatment, it is of little significance.
