Peripheral Vascular Disease and the Role of Interventional Therapy

Understanding Peripheral Vascular Disease (PVD)
Peripheral vascular disease, most commonly manifesting as lower extremity arterial obstruction, is a serious condition that, if left untreated, may lead to limb amputation or even sudden cardiac death. Among individuals over the age of 60, the incidence of PVD is reported to be around 10%, and this number increases to approximately 20% for arteriosclerosis obliterans in those over 65.

What is Peripheral Vascular Disease?
Peripheral vascular disease refers to disorders affecting blood vessels outside of the heart and brain. It encompasses diseases of the arteries, veins, and lymphatic system, excluding cardiovascular and cerebrovascular conditions.

The most common underlying cause of PVD is atherosclerosis. In this process, fatty deposits accumulate on the inner walls of blood vessels and combine with calcium and fibrous tissue to form hardened plaques. These plaques narrow or block the vascular channels, impeding blood flow and, in severe cases, causing complete occlusion.

Other contributing factors include thrombosis, diabetes, hypertension, and hyperlipidemia, all of which can accelerate atherosclerotic progression. Additionally, conditions such as vasculitis, infections, and congenital vascular abnormalities may damage the vessel wall and contribute to disease development.

Intervention: A Key Approach to Treating PVD
Conventional medical therapy often yields limited results in treating peripheral vascular disease, while surgical options are typically invasive and may not offer long-term benefits. However, with the advancement of interventional medicine, minimally invasive procedures have become increasingly effective and widely adopted.

Peripheral vascular intervention is now a key branch of interventional radiology. It is considered the first-line treatment for lower extremity vascular obstructions. Among various techniques, stent implantation remains one of the most commonly employed.

These procedures are performed under the guidance of advanced imaging technologies such as angiography, CT, MRI, or ultrasound. Using specialized tools like puncture needles and catheters, physicians can access the affected vessel and carry out targeted diagnosis and treatment with minimal trauma.