High pressure is lower if it is kept constant - it is always dangerous. Therefore, patients with such pressure carefully examined to detect diseases that could lead to such a condition. First, try to identify kidney disease, adrenal and thyroid - these bodies are most often the cause of high pressure low.

What does a high bottom pressure

Human blood pressure is expressed in two numbers - the top and bottom. The top pressure is called the maximum or systolic. It is determined by the amount of blood that pushes the heart during systole (contraction of the heart muscle - the myocardium). When the heart muscle relaxes systole - diastole occurs - at the time the blood moves through the blood vessels, meeting the resistance of the walls - it was at this time is determined by the minimum or diastolic blood pressure. The difference between systolic and diastolic pressure Diastolic blood pressure is an important indicator of health   It called pulse pressure.

That means lower high blood pressure? It is stable excess of normal values ​​for a long time. Short-term growth, both systolic and diastolic blood pressure may be the norm. Pressure rises at high physical and neuropsychiatric loads, sudden stress, and can change throughout the day - all this is a variant of the norm.

The reasons for the lower high pressure may vary, but most such pressure develops against the background of other diseases.

Symptomatic hypertension

High levels of low pressure is often a sign of hypertension, which develop on the background of some other diseases - symptomatic hypertension. Very often symptomatic hypertension is a sign of severe kidney disease, accompanied by a narrowing of the blood vessels of the body.

The reason for the lower high pressure in this case is that the kidney begins actively released biologically active agent - renin causing a spasm of blood vessel and elevation of blood pressure (BP) with a lower prevalence increase of diastolic pressure. Diseases such as congenital anomalies of the kidney and vascular structure of chronic glomerulonephritis, often manifest themselves in the form of high diastolic blood pressure High diastolic blood pressure - the problem is serious .

Essential hypertension with high diastolic pressure

High pressure is lower, and may be a sign of essential hypertension - a disease that manifests itself only by an increase in blood pressure. Essential hypertension with high ground pressure is more common in young adults and is sometimes malignant, progressive course. The lower dangerously high blood pressure? Higher risk of developing complications. Thus, the higher the lower the pressure, the greater the risk of complications:

• diastolic pressure consistently exceeds the figure 90-105 mm Hg. Art. - A sign of the beginning of hypertension;
• diastolic pressure consistently exceeds the figure 106-115 mm Hg. Art. - A sign of moderate hypertension;
• diastolic pressure consistently exceeds the figure of 115 mm Hg. Art. - A sign of severe hypertension;
• diastolic pressure consistently exceeds the figure of 130 mm Hg. Art. - A sign of malignant hypertension.

Why increased inner pressure in essential hypertension completely unknown, but found that this involves many factors.

If essential hypertension is not treated, then sooner or later (sometimes after a few years) it will cause complications of many organs and systems. High blood pressure is lower indicating a high resistance to the walls of blood vessels, that is their constant spasm. This means that due to the narrowing of the arteries organs and tissues do not get enough nutrients and oxygen. Long term "starvation" leads to disruption of the function of these organs.

Very high pressure is lower - what complications it gives

With long-term eating disorders in organs and tissues originate sclerotic changes (grows connective tissue that replaces the body's own tissue) that disrupt the function of that organ. Thus, in the heart occurs first increase in volume of the heart muscle in the left ventricle (the one that the most loaded work as pumps blood to the systemic circulation), and then germination myocardial tissue connective tissue (myocardiosclerosis) with a reduction of the contractile function of the heart.

Cardiovascular disease in the systemic circulation - a growing swelling, fluid in the abdomen (ascites) and a progressive decline in health. In the small circle of cardiovascular (heart-lung) failure manifested increasing shortness of breath and pulmonary edema threat - the lungs fill with fluid that seeps through the walls of blood vessels in the stagnation of blood in the lungs.

Severe changes may develop in the brain - they result in reversible disturbances of intelligence and memory. Disturbances in the kidneys can lead to kidney failure - the kidneys can not cope with its function excretion of toxic substances and there is a slow poisoning of the body.

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