Gradual blood pressure reduction
Procedure
RENAL DENERVATION WITH DR SAYAN SEN

Procedure at a glance
Expected results:
Treatment time:
60-90 minutes
Anaesthetic:
Local with sedation
Downtime:
1-2 days
Longevity:
Sustained (multi-year benefit in many patients)
Expected results:
Gradual blood pressure reduction
Treatment time:
60-90 minutes
Anaesthetic:
Local with sedation
Downtime:
1-2 days
Longevity:
Sustained (multi-year benefit in many patients)
Renal denervation is a minimally invasive procedure that may help lower high blood pressure in patients whose condition remains uncontrolled by medication. Dr Sayan Sen offers renal denervation at expert cardiac centres in London using advanced catheter-based techniques.
What is Renal Denervation?
Renal denervation targets the overactive nerves surrounding the arteries to the kidneys, which play a key role in regulating blood pressure. It is performed using a catheter inserted via a blood vessel.
The procedure uses controlled energy – usually radiofrequency or ultrasound – to disrupt the renal sympathetic nerves. This reduces their ability to signal high blood pressure responses. Renal denervation may help patients with treatment-resistant hypertension reduce their blood pressure over time and limit the risks of stroke, heart failure or kidney damage.
When Might You Need Renal Denervation?
Renal denervation is considered for patients with persistently high blood pressure that remains elevated despite lifestyle changes and multiple blood pressure medications.
- Resistant hypertension: Blood pressure remains above target despite three or more medications.
- Side effects from tablets: Some patients cannot tolerate the required drug combinations.
- High cardiovascular risk: Especially if other risk factors like diabetes or kidney disease are present.
- Preference for long-term control: Offers an alternative for patients seeking non-pharmacological options.
What to Expect Following Renal Denervation
Renal denervation is usually a day-case procedure with minimal recovery time. You’ll be monitored for a few hours before returning home.
There may be mild discomfort at the access site, but most patients resume normal activities within 24-48 hours. Blood pressure is tracked over the following weeks to assess improvement. With ongoing support in London Dr Sen will guide lifestyle changes and manage long-term cardiovascular risk.
FAQs
How effective is renal denervation?
Studies show that renal denervation can lead to sustained reductions in blood pressure, particularly in patients with treatment-resistant hypertension. Results vary, but many patients experience meaningful improvements. Dr Sen will assess whether this approach suits your blood pressure profile and overall risk.
Is the procedure safe?
Renal denervation is a low-risk, minimally invasive procedure. It’s typically done under light sedation and does not require surgery. Complications are uncommon but may include bruising at the catheter site or temporary changes in kidney function. Dr Sen will explain the risks and benefits in detail.
Will I still need blood pressure tablets after the procedure?
Many patients are able to reduce the number or dose of medications over time. The goal is not necessarily to eliminate medication but to achieve better blood pressure control with fewer side effects. Your treatment will be personalised during follow-up.