Vascular health: Managing leg edema and arterial circulation

Swelling in the legs, known as edema, is often caused by prolonged sitting or standing, which slows lymphatic drainage and increases pressure in small vessels. Regular movement, such as ankle exercises every hour or walking 30 minutes daily, can help mitigate this. Other contributing factors include heat, excessive salt intake, long periods of travel without movement, and pregnancy. Certain medications, such as calcium channel blockers, anti-inflammatories, and corticosteroids, may also cause swelling.

While bilateral swelling that subsides overnight is often related to lifestyle, certain symptoms require immediate medical attention. One should seek emergency care if swelling occurs suddenly in only one leg, is accompanied by pain (especially in the calf), or if the area is warm or red.

To diagnose issues like peripheral arterial disease, where blood flow is reduced, doctors may use peripheral arteriography. This procedure uses a catheter and contrast substance to map arterial circulation and identify blockages. In many cases, this diagnostic step can be immediately followed by endovascular treatment, such as balloon angioplasty or stent implantation, avoiding the need for open surgery.