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MBBS, MS, DrNB (Vascular Surgery)
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Vascular stenting is a minimally invasive procedure used to improve blood flow through a narrowed or blocked blood vessel. A small, expandable mesh tube called a stent is placed inside the affected vessel to help keep it open and restore adequate circulation. Vascular stenting may be considered for patients with peripheral artery disease and other conditions in which reduced blood flow affects the limbs or other parts of the body. The procedure is generally performed through a catheter and is planned according to the location and severity of the vascular blockage.
Narrowing or blockage of blood vessels can develop for several reasons. Atherosclerosis, in which fatty deposits and plaque build up inside the artery, is one of the most common causes. Diabetes, high blood pressure, high cholesterol, smoking, obesity and increasing age can increase the risk of vascular disease. In some patients, blood vessel narrowing may also result from previous vascular injury, blood clots or other underlying conditions that affect circulation.
Symptoms depend on the blood vessel involved and the degree of reduced blood flow. When the arteries supplying the legs are affected, patients may experience pain, heaviness, cramping or fatigue in the legs while walking, which may improve with rest. Other symptoms can include numbness, weakness, coldness of the affected limb, changes in skin colour or slow-healing wounds. Severe circulation problems may cause persistent pain even at rest or the development of ulcers and tissue damage, requiring prompt medical attention.
A detailed medical history and physical examination are important first steps in evaluating suspected vascular disease. The doctor may assess pulses, skin changes and circulation in the affected area and recommend investigations such as an ankle-brachial index, Doppler ultrasound or CT angiography. In selected cases, conventional angiography may be performed to obtain a more precise view of the blood vessels and determine whether vascular stenting or another treatment would be appropriate.
Treatment is tailored to the patient’s symptoms, vascular condition and overall health. Depending on the severity of the disease, management may include lifestyle changes, medicines to control blood pressure and cholesterol, antiplatelet medication and treatment of conditions such as diabetes. When significant narrowing or blockage limits blood flow, an endovascular procedure such as angioplasty may be performed, sometimes followed by placement of a vascular stent to help maintain the opening of the vessel. The most appropriate approach is determined after a thorough vascular assessment.
Following vascular stenting, patients are usually advised to follow their prescribed medication schedule and attend recommended follow-up appointments. Depending on the individual’s condition, antiplatelet medicines may be prescribed to reduce the risk of clot formation within the treated vessel. Maintaining a healthy lifestyle, controlling blood pressure and blood sugar, managing cholesterol, avoiding tobacco and staying physically active as advised can support long-term vascular health. Patients should also monitor the treated area and report unusual swelling, bleeding, worsening pain or changes in the colour or temperature of the limb.
Vascular stenting is generally considered a safe and established treatment when performed in appropriately selected patients, but like any medical procedure, it carries potential risks. These may include bleeding or bruising at the catheter entry site, infection, allergic reaction to contrast material, blood clot formation or damage to the blood vessel. In some cases, the treated artery may become narrowed again over time or the stent may become blocked. The doctor will discuss the potential benefits and risks based on the patient’s individual condition before treatment.
Patients experiencing persistent leg pain while walking, unexplained numbness or weakness, coldness of a limb, skin colour changes or wounds that do not heal should seek medical evaluation. Sudden severe pain, marked coldness or paleness of a limb, loss of sensation or difficulty moving the affected limb may indicate a serious circulation problem and requires urgent medical attention. Early diagnosis and appropriate treatment of vascular disease can help improve blood flow, relieve symptoms and reduce the risk of complications.
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