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If the impaired vein function causes significant symptoms, such as swelling and ulcer formation, it is referred to as chronic venous disease. [3] It is sometimes called chronic peripheral venous insufficiency and should not be confused with post-thrombotic syndrome in which the deep veins have been damaged by previous deep vein thrombosis .
Embolectomy by open surgery on the artery [1] [2] If extensive necrosis and gangrene has set in an arm or leg, the limb may have to be amputated. [1] Limb amputation is in itself usually remarkably well-tolerated, but is associated with substantial mortality (~50%), primarily because of the severity of the diseases in patients where it is ...
Vascular surgery An embolism is the lodging of an embolus , a blockage-causing piece of material, inside a blood vessel . [ 1 ] The embolus may be a blood clot ( thrombus ), a fat globule ( fat embolism ), a bubble of air or other gas ( gas embolism ), amniotic fluid ( amniotic fluid embolism ), or foreign material .
While venous thrombosis of the legs is the most common form, venous thrombosis may occur in other veins. These may have particular specific risk factors: [5] Cerebral venous sinus thrombosis, cavernous sinus thrombosis and jugular vein thrombosis: thrombosis of the veins of the brain and head
Since venous blood returns to the right heart and is pumped to the lungs for reoxygenation, the fat globules often get lodged in the pulmonary circulation. Fat globules may also pass through lung circulation back into the left ventricle of the heart to be pumped throughout the body in the systemic circulation. [8]
A thrombus, or a blood clot, is a mobilized mass of blood cells that circulates within the body. [21] [22] Thrombi can occlude veins (venous thrombosis) or arteries (arterial thrombosis). The etiology of thrombosis is described by Virchow's Triad, which includes hemostasis, vascular wall damage, and hypercoagulability. [21]
Pneumonia fills the lung's alveoli with fluid, hindering oxygenation. The alveolus on the left is normal, whereas the one on the right is full of fluid from pneumonia. Pneumonia frequently starts as an upper respiratory tract infection that moves into the lower respiratory tract. [55] It is a type of pneumonitis (lung inflammation). [56]
Modern vascular surgery includes open surgery techniques, endovascular (minimally invasive) techniques and medical management of vascular diseases - unlike the parent specialities. The vascular surgeon is trained in the diagnosis and management of diseases affecting all parts of the vascular system excluding the coronaries and intracranial ...
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