Diseases of the heart and blood vessels

Thrombosis

Blood vessels carrying oxygen-enriched blood from the heart to the organs are called arteries, and those that carry carbon-rich blood from the organs to the heart are veins. A thrombus is a blood clot in a blood vessel that partially or completely interferes with blood flow. A disease in which clots form in the blood is called thrombosis. Most often, thrombi form in the veins of the legs. However, they can form in other parts of the body, for example, in the region of the anus, the blood vessels of the hands or the brain. Symptoms Swelling of the affected leg. Pain in the leg. Causes of the disease Thrombosis occurs under the influence of three factors: The first factor:...

Nodular periarteritis

What is nodular periarteritis? Nodular periarteritis (synonyms - panarteritis nodosa, polyarteritis nodosa or Kussmaul-Meyer's disease) - an inflammatory lesion of the arterial wall of small and medium-sized vessels with formation of microaneurysms leading to progressive organ failure is manifested due to reactions associated with hypersensitivity of the immune system. Over time, the walls of blood vessels can become condensed and lose their elasticity. Also, limited local expansion of the lumen of the arteries due to stretching and protrusion of their walls (the emergence of microaneurysms), the formation of which under the skin to the touch sometimes resembles a string of pearls....

Gypovolemia, a gypowo-military shock

All body systems function normally only if the heart feeds enough blood into the circulatory system. If, for some reason, this process is disrupted for some reason, then hypovolemic shock is manifested. It is also called "cold", as it is characterized by a spasm of small blood vessels and a weakening of the circulation of the extremities, which leads to their cooling. This condition is dangerous for the patient's life. Hypovolemic shock can occur suddenly or develop gradually, within a few minutes. The shock comes because the brain and other organs with blood receive insufficient amounts of oxygen. First, the human body tries to compensate for the lack of oxygen by releasing into the blood...

embolism

What is embolism? Embolism is a condition in which the lumen of the vessels is blocked by an embolus, that is, a particle brought with a blood stream (a severed thrombus, fat from damaged tissues, or air trapped in a vessel, etc.). Embolism of the pulmonary artery, blood vessels, brain, heart can be the cause of human death. When a blood clot (embolus) enters the artery, it moves along with the blood flow until it gets stuck in the artery with a smaller lumen, thus blocking the bloodstream in it. If a clot of blood clogs the artery, then as a result, supply of tissues with arterial blood is disrupted. Tissues due to the lack of blood supply soon begin to lack oxygen and other important...

Hemorrhoids

Hemorrhoids are varicose veins of the submucosal veins in the lower part of the rectum. Hemorrhoidal nodes are external and internal. In developed countries, approximately 50% of residents have hemorrhoidal nodes. Half of them have some symptoms of this disease, and only one in two needs treatment. Sedentary lifestyle, diseases of the endocrine system, aging of the body, overeating and malnutrition, as well as alcoholism contribute to the emergence of hemorrhoids. Causes Hemorrhoids develop with congenital or acquired weakness of the venous wall, due to obstructed venous outflow (for example, as a result of a tumor, pregnancy, accumulation of hard fecal masses with persistent...