![]() ![]() Population studies have estimated an annual incidence of DVT of 0.5– in the general population. The most serious consequence of a DVT is a pulmonary embolism, which occurs when part of the thrombus dislodges and deposits in the vessels of the lung occluding circulation, ultimately leading to disability or death. While some patients with a DVT report leg pain, swelling, tenderness and redness of the affected area, not all are symptomatic which can delay life preserving diagnosis. superficial femoral and popliteal veins in the thighs and the posterior tibial and peroneal veins in the calves). ĭeep vein thrombosis occurs with the formation of a blood clot in the deep venous system, most commonly in the lower limbs (i.e. In addition, the financial burden of venous ulceration to healthcare systems in western countries is reported to be more than $3 billion annually. Disability caused by venous ulceration leads to loss of productive work hours (estimated at 2 million workdays/year) and early retirement. ![]() More than half of venous ulcerations require extensive therapy lasting more than 1 year. The overall prognosis of venous ulceration is poor, with poor skin nutrition, delayed healing and recurrent ulceration. CVI symptoms range from a vague feeling of heaviness in lower extremities, swelling of the legs, aching, itching, skin colour changes and venous ulceration, particularly of the medial ankle. Although leg veins are usually able to tolerate increased venous pressure over short periods of time, extended periods of increased venous pressure can lead to stretched vein walls and damaged venous valves, ultimately leading to CVI. However, extended periods of sitting or standing can lead to pooling of blood and an increase in venous hypertension in the lower limb. Retrograde flow is prevented by a system of one-way valves in the veins. ![]() standing) and is achieved through active compression of the lower limb veins via contraction of muscles of the feet and legs. Normal venous return occurs against gravity when the limb in is dependency (i.e. Ĭhronic venous insufficiency (CVI), also known as post thrombotic syndrome, occurs with unrestrained ambulatory venous hypertension associated with venous wall and value incompetence. Worldwide, the incidence of PAD has increased from 164 million in 2000 to 202 million in 2010. In general, PAD affects 10–15% of the population and about 20% of people aged over 60 years. PAD also increases the risk of coronary heart disease and cerebral vascular disease. PAD can increase the risk of infection in the affected area, with severe occlusion increasing the risk of gangrene and ultimately amputation. The body segment supplied by the impaired artery is then deprived of oxygen-rich blood and nutrients, often resulting in pain and numbness. Peripheral arterial disease (PAD) occurs with narrowing or blockage of the arteries with the formation of fatty deposits/plaque also known as atheroma. Peripheral arterial disease (PAD), chronic venous disease (CVD), which includes chronic venous insufficiency (CVI) and deep vein thrombosis (DVT), are common types of PVDs and are the most prevalent in the lower extremities. Vascular diseases result from circulatory system dysfunction caused by damage, occlusion and/or inflammation of arteries and/or veins. Peripheral vascular disease (PVD) is a major cause of morbidity and mortality globally, with significant financial burdens on critical healthcare resources. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |