Aneurysm: The causes

Aneurysm often results from atherosclerosis which results in the deposition of atheroma plaques; these deposits weaken the arterial wall. Arterial hypertension is an aggravating factor in aneurysm: the excessively high tension causes the walls of the arteries to become abnormal and especially where dehiscence occurs.

Trauma and birth defects can also be the cause of an aneurysm. Other rarer factors such as sepsis may result in the appearance of an aneurysm.

Aneurysm can cause compression of nearby organs or rupture.
For example, an aneurysm of the popliteal fossa (behind the knee) may result in compression of the nerve or venous structures that are present in the area and lead to muscle or sensory neurological disorders of the leg and foot, or venous insufficiency with risk phlebitis.

Aneurysm sometimes contains blood clots that can migrate and cause downstream arterial thrombosis.
An aneurysm can break at any time and cause a massive hemorrhage that can be very serious. The larger the aneurysm, the higher the risk of rupture.

The most dramatic ruptures of aneurysms are those of the aorta as well as the intra-cerebral arterial aneurysms, the first because their rupture is often massive; the latter because their rupture gives a hematoma that will quickly compress the brain structures that will give sometimes irreversible sequelae or cause death if vital nerve centers are affected.

Popular Posts

Category Diseases, Next Article

Low back pain: the causes - Diseases

Low back pain: the causes

Why is there a backache? It has long been thought that the degeneration of the disc was the cause of the pain, even though it is very commonplace and that it is impossible to see radiographs alone to distinguish those who suffer from those who complain about nothing. Even with modern imaging techniques (CT, MRI), the precise cause of pain can not be established for at least 50% of low back pain
Read More
Type 1 diabetes: symptoms - Diseases

Type 1 diabetes: symptoms

The symptoms of type 1 diabetes in its typical form are rapid onset and brutal: Frequent and abundant urine (polyuria), the body trying to eliminate excess sugar in the urine An abnormal thirst (polydipsia) to compensate for the loss of water in the urine An intense general fatigue, Weight loss and muscle wasting despite a healthy appetite Greater susceptibility to infections Only a measurement of the blood glucose level analyzed in the laboratory makes it possible to determine with certainty the diabetes (often frankly high): > 1
Read More
Bronchitis - Diseases


Bronchitis is an episode of inflammation of the bronchi. It can be of infectious origin: often of viral origin, and in rare cases (less than 10%), of bacterial origin. These are either acute bronchitis with fever and cough as the main signs. Acute bronchitis may also be due to an allergy that causes irritation, inflammation of the lining of the bronchial interior
Read More
Folliculitis - Diseases


You have red spots on your face, legs or back: how do you understand if it's an allergy, acne or folliculitis? Folliculitis, also called sycosis when it touches the beard, is a fairly common skin infection. Of bacterial origin, it reaches the pilosebaceous follicles, small sacs inside which are the roots of the hairs
Read More