What is hypertensive encephalopathy, and its incidence What

Hypertensive encephalopathy is dramatically increased blood pressure (DBP general in more than 17.3 kPa) brain edema and intracranial pressure or , caused a sharp changes in the clinical syndrome, often occurred in the aggressive type of hypertension and a handful of relief into hypertensive patients. Can also be found in acute glomerulonephritis, pregnancy-induced hypertension, renal vascular hypertension and pheochromocytoma, and other patients. Clinical sudden blood pressure to rise, headache, vomiting, irritability, convulsion and awareness of the major obstacles to performance. Diffuse headache for the whole headache, or the amount previously mainly after pillow, coughing or forceful aggravating, frequently with nausea, vomiting. Awareness obstacles are more common, while the short, fuzzy consciousness, lethargy, severe coma and may accompanied by hemiplegia, hemianopsia. Aphasia and two-sensory dysfunction. Convulsive seizures hypertensive encephalopathy is another common symptoms of systemic performance limitations or convulsion, serious form of status epilepticus. Convulsion due to the emergence of sustained intracranial hypertension in rats, focal necrosis of the brain, brain abnormalities caused by the discharge. Hypertensive encephalopathy fundus examination, we can see palilledema or venous circuitous small changes, such as Silver kind, or arteriovenous crossover, - retinal bleeding a bit. Lumbar puncture and cerebrospinal fluid examination showed increased pressure, protein content, or to contain a small amount of erythrocytes and leukocytes. Hypertensive encephalopathy CT scan for no more abnormal performance or indicate cerebral edema, brain hemorrhage and is the basis for one of the differential. Hypertensive encephalopathy pathogenesis, it is still not very clear, because the majority view of the sudden dramatic increase in blood pressure. self-regulation cerebral artery caused by the disorder. Under normal circumstances, high blood pressure, cerebral artery contraction in the brain arteries from becoming filling; Blood pressure decreased, Brain small arteries to ensure that the blood supply to the brain and intracranial pressure maintained within the normal range. However, when the blood pressure rises dramatically, and this regulation dysfunction, cerebral artery sustained and strong contraction, followed by mandatory passive and diastolic, excessive brain perfusion and cerebral edema, increased intracranial pressure and produce a series of symptoms. Hypertensive encephalopathy hypertension is a serious complication, if not timely rescue, due to increased intracranial pressure continued. irreversible damage to brain tissue, or herniation and death, we should closely observe the patient's condition. Hypertensive encephalopathy prevention of the occurrence of the event should actively emergency treatment.