hemianopia hemisensory disorder
Introduction
Introduction "Stroke" is a general term for a type of disease. The onset of such diseases is sudden, and it is characterized by sudden fainting on the ground, unconsciousness, or sudden occurrence of squinting, unfavorable language, and half-length. Stroke "three-biased" disease refers to a group of symptoms of contralateral hemiplegia, partial sensory disturbance and hemianopia. It is the main sign of lesions in the internal capsule and is more common in hemorrhagic stroke. High blood pressure and arteriosclerosis are the most common and most common causes of stroke. Relevant data show that 93% of patients with cerebral hemorrhage have a history of hypertension; 86% of patients with cerebral thrombosis have a history of hypertension.
Cause
Cause
1) High blood pressure and arteriosclerosis are the most common and most common causes of stroke. Relevant data show that 93% of patients with cerebral hemorrhage have a history of hypertension; 86% of patients with cerebral thrombosis have a history of hypertension. The main hazards of hypertension are: 1 Accelerated aggravation of cerebral arteriosclerosis and rupture of blood vessels and aneurysms. 2 caused repeated arterial spasm, resulting in pointy hemorrhage and edema in the brain tissue. 3 caused the arterial wall to be transparent and degenerated, forming a dissection aneurysm, and then rupture bleeding.
2) Inflammation of the cerebral blood vessels causes an ischemic stroke or a hemorrhagic stroke.
3) Congenital abnormalities of cerebral vessels are common causes of subarachnoid hemorrhage and cerebral hemorrhage, including cerebral aneurysms and cerebral vascular malformations. Multiple small aneurysms can repeatedly rupture and bleed.
4) Thrombocytopenic purpura is a more common hemorrhagic disease with hemorrhagic stroke. Sometimes a stroke can occur before the diagnosis of leukemia. In leukemia, 20 to 25% of patients die of intracranial hemorrhage and a few have ischemic stroke.
5) Cardio-cerebral encephalopathy is one of the main causes of cerebral embolism. Rheumatic, hypertensive, coronary atherosclerotic cardio-encephalopathy and subacute bacterial endocarditis may produce a wall thrombus. When heart failure or atrial fibrillation occurs, the embolus is caused to fall off and flow to the cerebral artery. embolism. Cerebral embolism caused by rheumatic heart disease is not only high in incidence, but also prone to recurrence.
6) Intoxication, trauma, brain tumors, brain tumor radiotherapy, electric shock, etc. can cause ischemic or publication-related stroke.
7) Atherosclerosis is the central cause of the disease. 70% of central patients have arteriosclerosis. At present, the medical profession recognizes that hyperlipidemia is one of the main causes of arterial hard menstruation. Due to the disorder of blood lipid regulation, the hardened plaque accumulates more and more on the blood vessel wall, causing the lumen to narrow and bend, and the platelets associated with blood coagulation accumulate in the endometrial lesion, resulting in increased vascular resistance and slow blood flow. Finally, thrombosis is gradually formed, leading to cerebral thrombosis.
8) Diabetes is most closely related to diabetes and stroke. 30 to 40% of stroke patients have diabetes. Some patients find diabetes after a stroke. The degree of arteriosclerosis in diabetic patients is more severe than that of non-diabetic patients of the same age. A stroke caused by diabetes is more common in cerebral thrombosis and less cerebral hemorrhage.
Examine
an examination
Related inspection
Positional sensation sensation brain CT examination
1. With sorrow, confusion, and even coma or fainting, half-length, tongue and tongue, tongue strong or no words, partial numbness.
2. More acute onset.
3. There are many incentives for the disease, and there are often auras such as dizziness, headache, numbness, and weakness.
4. The age of good hair is over 40 years old.
5. Blood pressure, cerebrospinal fluid examination, - service examination, craniocerebral Cr, true OU and other examinations are helpful for diagnosis.
At the time of diagnosis, on the basis of the diagnosis of the name of the stroke, it is necessary to diagnose the two meridians of the meridian and the viscera according to the presence or absence of the fainting.
The acute phase of stroke is within two weeks after onset, and the viscera can be up to one month; the recovery period is two weeks or one month to six months; the sequelae is more than half a year.
Diagnosis
Differential diagnosis
(1) Hemiplegia: refers to the patient's half-side voluntary movement disorder. The nerve fibers that govern free movement are called pyramidal bundles. The bundle is a fiber that is emitted from a large pyramidal cell in the anterior cerebral cortex, and descends through the inner capsule to the lower end of the medulla, to the corresponding spinal anterior horn cells, and then fibers from the anterior horn to innervate the skeletal muscle. If the internal capsule is bleeding, the damaged pyramidal beam is above the intersection plane, so the sputum occurs on the opposite side of the lesion, and the lateral side, the tongue and the limb are paralyzed.
(2) Partial sensory disturbance: refers to pain, temperature and proprioception in the half of the patient. The nerve fibers of the conduction painful party from the skin receptor to the nerve endings to the posterior horn of the afferent spinal cord, crossed to the contralateral lateral cord, and then passed through the inner capsule to the center of the cerebral cortex and then returned to the sensory center. The sensory center makes a comprehensive analysis of the incoming stimuli to make a judgment that is hot, cold, or painful. If the internal part is damaged, the contralateral side pain is transmitted and the temperature is disturbed. The receptors that transmit the proprioceptive sensation are stimulated and then afferent into the spinal cord and then lifted up to the medullary wedge nucleus and the thin bundle nucleus, and then the nerve fibers from the two nucleus intersect to the contralateral superior sac to the central posterior gyrus. If the internal capsule is damaged, the conduction of the sense of the partial body is interrupted, and the proprioception is lost such as loss of position.
(3) hemianopia: one side of the beam and the radioactive nerve fibers, the nerve fibers from the ipsilateral retina, through the internal capsule to the momentary visual center, reflecting the contralateral field of view. If the internal capsule is damaged and the radiation is damaged, the contralateral field is blunt.
