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Kidney stenting lowers blood pressure in patients with severe hypertension
Date:8/30/2012

of participants were Caucasian, mean age was 72 years, and 62% of patients were female. BNP testing was performed before and after stenting with the RX Herculink Elite Renal Stent System by Abbott Vascular.

At the start of the trial the mean systolic blood pressure of the trial group was 162 mm Hg and nearly 70% of patients were taking three or more medications to control hypertension. Success rates for the trial device, procedure and clinical outcomes were 96%, 99%, and 98%, respectively. Researchers reported that freedom from major adverse events (death, kidney removal, or embolism causing renal injury) was 95%.

Further results show that at the nine-month follow-up the restenosis rate was 11% and the mean systolic blood pressure for participants was 145 mm Hg post-stenting with no change in medications. Researchers found no association between a reduction in blood pressure following stenting and elevated BNP pre-procedure, or a decrease in BNP levels following successful stenting. While there was a significant decrease in BNP following stenting, the BNP level prior to the procedure was not reliable in predicting blood pressure response.

"The HERCULES trial demonstrates that renal artery stent revascularization significantly lowers systolic blood pressure in patients with severe hypertension," concludes Dr. Jaff. "Those patients with the highest blood pressure rates at baseline had the greatest magnitude of blood pressure lowering." The authors point out that because the majority of trial participants were Caucasian the findings may not be applicable to other racial groups.

In a related video, Dr. Jaff discusses specifics of his research with Steven R. Bailey, MD, FSCAI, Editor-in-Chief of Catheterization and Cardiovascular Interventions. "The research by Dr. Jaff and colleagues is an important contribution to the evidence supporting stenting as an effective intervention for patients with renovascular disease," said
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Contact: Dawn Peters
sciencenewsroom@wiley.com
781-388-8408
Wiley
Source:Eurekalert

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