Absolute ethanol renal angioinfarction for control of hypertension

Area of Science:

• Interventional Radiology
• Nephrology
• Cardiology

Background:

• Medically uncontrollable hypertension poses significant health risks.
• Renal vein renin levels can indicate renovascular hypertension.
• Nephrectomy is a drastic measure for severe, refractory hypertension.

Purpose of the Study:

• To evaluate the efficacy and safety of ethanol renal angioinfarction for severe hypertension.
• To assess the impact of the procedure on blood pressure and medication requirements.
• To determine if ethanol angioinfarction is a viable alternative to nephrectomy.

Main Methods:

• Six patients with severe hypertension underwent ethanol renal angioinfarction (11 renal units).
• Pre-ablation blood pressure and renal vein renin levels were recorded.
• Patients were followed for a mean of 51 months post-procedure.

Main Results:

• All 6 patients experienced improved hypertension post-procedure.
• Complete resolution of systemic hypertension occurred in 4 patients.
• No major complications were associated with ethanol injection.

Conclusions:

• Transcatheter renal ablation with ethanol is a safe and effective treatment for severe hypertension.
• This procedure is a potential alternative to nephrectomy in selected high-risk patients.
• Ethanol angioinfarction offers a minimally invasive option for managing refractory hypertension.