Posts Tagged ‘brain’
What Is Hypertension
Hypertension is the steady increase of pressure beyond certain levels and can be detected by the physician in most later measurements, a random survey of high pressure is a warning bell that requires more frequent measurements, but is not sufficient for diagnosis high blood pressure.
Blood pressure is determined by three main factors:
* The amount of blood that is pumped into the circulation;
* Resistance vessels (arteries and veins) in the bloodstream;
* The activities of the cardiac pump.
These three elements are in turn controlled by many factors, such as hormones, nerve stimulation, activity of some organs (eg kidney, adrenal, thyroid). The level of blood pressure is the result of the continuous, instantaneous interaction of all these factors together.
But why is it important that the pressure remains within certain values? Scientific studies have shown that the cardiovascular system and the whole body working optimally and receive oxygen and nutrients through the blood with blood pressure very specific maximum or systolic pressure of 115-120 mmHg or diastolic pressure of at least 75-80 mmHg. Read the rest of this entry »
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Hypertension Damages
The new result opens the door to other preventive strategies
Lacunar strokes are small strokes that occur in deeper brain structures and, generally, they cause no symptoms. Although they may go unnoticed, these disorders do have consequences, and that its development has been associated with cognitive and start of dementia. An Australian research has shown that hypertension is a major risk factor for its appearance, thus opening the door to preventive strategies.
The authors of this paper, published in the journal Neurology, they wanted to analyze the prevalence of such strokes common in elderly people, and the various factors that may contribute to its onset. To do this, followed up for four years to a sample of 477 people aged between 60 and 64 years.
At the beginning of the investigation, and other general medical evaluations, each participant underwent an MRI, an imaging technique that can detect the disorder. At that time, a total of 37 patients, 7.8% of the sample-had little damage to his brain caused by a lacunar stroke.
Posted in Hypertension Damages | Tags: brain, hyperintense lesions, Hypertension, Hypertension Damages, Lacunar strokes, stroke | No Comments »