Hyperemia

Hyperaemia is a condition in which blood accumulates in the blood vessels supplying a specific part of the body. This can occur either as a result of a normal physiological response to increased blood supply demand or as a result of pathological processes.

Active hyperemia (or arterial hyperemia) occurs in response to increased metabolism in tissues. In this case, the arterioles (small arteries) relax and dilate, which leads to increased blood flow in the vessels supplying that area of ​​the body. This can occur, for example, in muscles during exercise. Active hyperemia can also occur in response to elevated temperature or the presence of an inflammatory process in the tissue.

Passive hyperemia occurs when blood flow in the blood vessels of the affected area of ​​the body is obstructed or interrupted. This can happen, for example, if there is a blood clot or embolus that blocks blood flow in the vessels. Passive congestion can also be caused by damage to the valves in the veins, which causes blood to flow back and pool in the affected area.

Passive hyperemia can be associated with various diseases, such as heart failure, chronic obstructive pulmonary disease and some liver diseases. In these cases, obstructed blood flow from the affected area leads to excess blood accumulation.

Symptoms of flushing include redness and warmth of the skin in the affected area, as well as swelling and pain. If hyperemia is caused by a pathological process, then it can lead to further complications, such as tissue necrosis and dysfunction.

Treatment for hyperemia depends on its cause. In the case of active hyperemia, treatment is usually not required, as this is a normal physiological reaction. With passive hyperemia, it is necessary to eliminate the cause of impaired blood flow. In some cases, surgery may be required.

In conclusion, congestion is a condition in which blood accumulates in the blood vessels supplying a specific area of ​​the body. It can be caused by both physiological and pathological processes. Symptoms of congestion include redness, warm skin, swelling and pain. Treatment depends on the cause of the congestion and may include correcting the obstructed blood flow and surgery in some cases. If you have symptoms of flushing, see your doctor for diagnosis and treatment. It is important to quickly identify and treat the cause of hyperemia in order to avoid possible complications and maintain health.

Hyperemia (English hyperaemia, from ancient Greek ὑπερ- “super-, over-” + αἷμα “blood”) is an increase in blood volume in capillaries and small veins due to the release of the liquid part of the blood from larger vessels. This is not an independent disease, but a symptom of certain pathological conditions, such as inflammation, injury, allergies, etc.

Hyperemia can be active (or arteriolar) and passive (venous). Active hyperemia occurs as a result of dilation of arterioles and increased blood flow to the tissue. Passive hyperemia is associated with difficulty in the outflow of blood through the veins due to their spasm or compression.

Active forms of hyperemia occur when blood pressure increases, for example, during physical activity, emotional arousal, stress, alcohol intoxication, smoking. Passive forms of hyperemia can occur with prolonged standing, sitting, sexual arousal, hypothermia, diseases of the cardiovascular system, which are accompanied by stagnation of blood in the lower extremities.

With the active type of hyperemia, tissue perfusion increases, which leads to increased oxidative processes, increased oxygen and nutrient consumption, and accumulation of metabolites. This can lead to the development of edema and tissue dysfunction.

Introduction

Congestion is a process in which the blood vessels supplying a certain part of the body become congested with blood. Hyperemia can be divided into two categories: active and passive. With active hyperemia, the arterioles relax and blood flow increases. In the case of passive hyperemia, blood flow disturbances occur in the area of ​​the limb where the process occurs. In this article we will consider all aspects and features of this pathology.

What is hyperemia?

Hypemia is a term used to describe the process of increasing the amount of blood that enters an area of ​​the body. Hyperemia refers to cases when the vessels are filled with blood to such an extent that excessive accumulation of blood begins. When there is a sharp increase in arterial blood pressure, capillaries rupture and hyperemia occurs. This process is characterized by the appearance of edema.

Edema is the accumulation of fluid that comes out of