5 doctors weighed in:

Why does renal artery stenosis cause high blood pressure?

5 doctors weighed in
Dr. Rajesh Boorgu
Internal Medicine - Nephrology & Dialysis
2 doctors agree

In brief: See below

The physiology of the kidney is complicated but the short answer is that ras tricks the kidney into thinking it is not getting enough blood.
It compensates by releasing hormones that increase systemic blood pressure in an attempt to increase renal blood flow.

In brief: See below

The physiology of the kidney is complicated but the short answer is that ras tricks the kidney into thinking it is not getting enough blood.
It compensates by releasing hormones that increase systemic blood pressure in an attempt to increase renal blood flow.
Dr. Rajesh Boorgu
Dr. Rajesh Boorgu
Thank
Dr. Mark Rasak
Internal Medicine - Cardiology
1 doctor agrees

In brief: Regulate bp

The kidneys help regulate the bp.
When there is bilateral renal artey stenosis then the sensors in the kidney think the decreased blood flow is from hypotension. The kidney then secretes hormones that cause the body to hold on to salt and water. This raises the bp.The pt becomes hypertensive

In brief: Regulate bp

The kidneys help regulate the bp.
When there is bilateral renal artey stenosis then the sensors in the kidney think the decreased blood flow is from hypotension. The kidney then secretes hormones that cause the body to hold on to salt and water. This raises the bp.The pt becomes hypertensive
Dr. Mark Rasak
Dr. Mark Rasak
Thank
Dr. Clarence Grim
Internal Medicine - Endocrinology

In brief: Why RAS inc BP?

When the stenosis (blockage) gets severe enough the kidney senses the BP is too low and releases the hormone renin into the blood. Renin reacts with a protein made in the liver and generates AI. AI is converted to AII by ACE. AII is the most potent BP raising chemical the body makes. It also stimulates adrenal to make excess aldosterone.

In brief: Why RAS inc BP?

When the stenosis (blockage) gets severe enough the kidney senses the BP is too low and releases the hormone renin into the blood. Renin reacts with a protein made in the liver and generates AI. AI is converted to AII by ACE. AII is the most potent BP raising chemical the body makes. It also stimulates adrenal to make excess aldosterone.
Dr. Clarence Grim
Dr. Clarence Grim
Thank
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