Renal artery stenosis is a serious and often underdiagnosed condition that can have a major impact on your kidney function and overall health. At Vascular Surgery Associates, with locations in Santa Monica and Los Angeles, we specialize in identifying and treating complex vascular conditions like this one using advanced, patient-focused care.
What Is Renal Artery Stenosis?
Renal artery stenosis occurs when one or both arteries that supply blood to the kidneys become narrowed. This narrowing is usually caused by a buildup of plaque (atherosclerosis), which restricts blood flow.
When the kidneys don’t receive enough blood, they may respond by increasing blood pressure and activating hormonal systems that can further strain the body. Over time, this can lead to chronic kidney disease or even kidney failure if left untreated.
It’s estimated that up to 5% of people with high blood pressure may have renal artery stenosis, and the condition becomes more common with age and in individuals with cardiovascular disease.
Signs and Symptoms to Watch For
One of the challenges with renal artery stenosis is that it may not cause obvious symptoms in its early stages. However, there are warning signs that may indicate a problem:
- High blood pressure that is difficult to control, even with medication
- Sudden onset of hypertension, especially before age 30 or after age 55
- Declining kidney function without a clear cause
- Fluid retention or swelling in the legs or feet
- Shortness of breath related to fluid buildup
In some cases, patients may experience no symptoms at all until the condition has progressed.
Why This Condition Is Dangerous
Renal artery stenosis doesn’t just affect the kidneys. Because it is often linked to atherosclerosis, it can also be a sign of widespread vascular disease.
If untreated, it can lead to:
- Chronic kidney disease
- Heart complications
- Increased risk of stroke
- Resistant hypertension
According to research, patients with untreated renal artery stenosis are at a significantly higher risk for cardiovascular events, making early detection critical.
How Is It Diagnosed?
Diagnosing renal artery stenosis typically involves a combination of medical history, physical examination, and imaging tests.
Common diagnostic tools include:
- Ultrasound (Doppler imaging): Evaluates blood flow in the renal arteries
- CT angiography or MR angiography: Provides detailed images of blood vessels
- Renal arteriography: A more advanced test used in certain cases for precise evaluation
Blood tests may also be used to assess kidney function and detect any decline.
Treatment Options
Treatment of renal artery stenosis depends on the severity of the condition and how much it is affecting your health.
- Medical Management: In many cases, medications are used to control blood pressure and manage cholesterol levels. Lifestyle changes such as diet, exercise, and smoking cessation are also important.
- Minimally Invasive Procedures: For more advanced cases, procedures such as angioplasty and stenting may be recommended to open narrowed arteries and restore blood flow.
- Surgical Intervention: In rare or complex situations, surgical options may be considered to bypass the blocked artery.
Studies have shown that appropriate treatment can significantly improve blood pressure control and help preserve kidney function.
Trusted Vascular Care in Southern California
Vascular Surgery Associates (VSA) has been a leader in vascular care since its founding in 1963. What began as a pioneering practice has grown into one of the busiest and most respected vascular surgery groups in the Western United States.
Our team combines decades of experience with the latest technology to provide accurate diagnoses and effective treatment plans tailored to each patient.
Don’t Ignore the Warning Signs
Renal artery stenosis is a serious condition, but early detection and treatment can make a significant difference. If you have high blood pressure that’s difficult to control or unexplained changes in kidney function, it may be time for an evaluation.
Contact Vascular Surgery Associates in Santa Monica or Los Angeles today to learn more about your vascular health and take the first step toward protecting your kidneys and overall well-being.
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