May Thurner syndrome, also known as iliac vein compression syndrome, refers to the chronic compression of the left iliac vein by the right iliac artery as they intersect at the pelvis. These two blood vessels originate in close proximity to each other near the lumbar spine in the abdominal region. In the case of May Thurner syndrome, the pulsating right iliac artery exerts pressure on the left iliac vein, causing it to be compressed against the lower spine. It is important to note that this syndrome predominantly affects the vessels on the left side, with instances of it occurring on the right side being rare.
Causes of May Thurner Syndrome
May Thurner syndrome is a condition that originates from the compression of the iliac vein. This compression causes structural alterations in the vessel, leading to the development of scar tissue. As time passes, these scar tissues can progressively block or partially obstruct the blood vessel. It is important to note that May Thurner syndrome is commonly associated with left-sided deep vein thrombosis (DVT) in the iliac or femoral veins. Recent research suggests that this condition may be more prevalent than previously believed.
May Thurner Syndrome and Deep Vein Thrombosis (DVT)
May Thurner syndrome often goes unnoticed until the development of a deep vein thrombosis (DVT). Symptoms of a DVT include leg pain, tenderness, swelling, warmth, and discoloration. While DVT itself is not typically life-threatening, it can become serious if the blood clot dislodges and travels to the lungs, resulting in a pulmonary embolism, which requires immediate medical attention. Additionally, DVT can lead to chronic swelling, discoloration, and ulcers in the legs due to blood pooling.