Diseases of the heart and blood vessels

Aneurysm: Causes, Symptoms & Diagnosis

Aneurysm - this is a different magnitude and form of expansion and protrusion of the outside of the walls of the arteries. At the heart of the pathology is the weakening of the elastic properties of the vascular walls. Aneurysms of the thoracic and abdominal aorta are especially common. Causes The main cause of this pathology is atherosclerosis. In 95% of cases, the cause of aneurysms of the abdominal aorta is atherosclerosis of the aortic walls. Sometimes aneurysms of the thoracic aorta are caused by inflammatory changes observed, for example, with syphilis. Expansion of the walls of the vessels arise from injuries, in which the aortic wall is damaged, as well as due to myocardial...

Vegetative-vascular dystonia (VVD) Symptoms, Treatments

Vegetative dystonia is a syndrome that includes various in origin and manifestations of somatic function disorders due to the disorder of their vegetative regulation. The striated and smooth muscles of the walls of the human blood vessels are somewhat strained - this natural muscle tension is called muscle tonus. Thanks to the muscle tone, the heart rhythmically contracts, the arteries widen and narrow. If the process of natural tension and muscle relaxation breaks, dystonia occurs. If such a violation of physical regulation causes the autonomic nervous system, then this condition is called vegetative dystonia. The autonomic nervous system (VNS) innervates all internal organs. It is...

Acute Myocardial Infarction: Causes, Symptoms & Diagnosis

Myocardial infarction is a heart disease caused by acute insufficiency of its blood supply, with the emergence of a foci of necrosis in the heart. As a result of the accumulation in the walls of substances with a high content of proteins and blood fats, the conductivity of the coronary vessels of the heart gradually decreases, so the myocardium constantly receives too little oxygen. The blood vessels supplying the heart muscle become brittle, their lumen narrowing. With sudden increases in physical or psychological load, the need for oxygen increases, and the reduction of the altered blood vessels can reach a critical limit, further reducing blood flow. At this time, myocardial...

CAISSON DISEASE: Symptoms, Causes, Treatment

A co-axial disease is a disease that occurs when a rapid transition from an environment with increased pressure to a medium with a lower pressure occurs. The caisson is a waterproof chamber used for underwater work at great depths. Today, diving is becoming an increasingly popular entertainment, so it is not surprising that cases of caisson disease are more common. Symptoms Pressure in the ears, dizziness. Pain in the joints. Rashes on the skin, itching. Fatigue, shortness of breath. Weakness and / or lack of sensitivity in the limbs, Bleeding from the ears and nose. Drowsiness until unconscious. Paralysis. Symptoms of caisson disease are different - from joint pain in the...

Lymphostasis of lower and upper extremities: signs and treatment

In the human body there are not only arteries and veins, but also lymphatic vessels, through which the tissue fluid - lymph flows. It is a clear or light yellow liquid flowing from the capillaries into the tissue. Lymph can be seen, for example, if you scratch your skin or rip off the scab, a colorless liquid appears. In the lymphatic system there are many lymph nodes that have to perform various functions - filtration, protective and accumulative. If the lymph flow slows down or stops completely in some place, the tissue fluid begins to accumulate in the hand or leg of that side. This condition is called lymphostasis, or elephantiasis. The main symptom of this disease is edema of the...