Kidney dialysis

Based in west London, our private dialysis clinic offers treatment to local patients and overseas visitors alike.

Reviewed by Dr Emma Salisbury, Consultant Nephrologist

At a glance

About our private dialysis clinic

When you have a kidney condition, dialysis can become a big part of your life. At Cromwell Hospital, we aim to deliver comfortable and convenient dialysis services tailored to our patients’ needs and lifestyles. 

In our private dialysis clinic, we have eight haemodialysis stations, using the latest Gambro haemodialysis machines – the Artis Physio system and the AK 98 dialysis machines. We can provide complimentary refreshments upon request.   

For your peace of mind, our clinic is supported by a 24-hour on-call consultant, with intensive care available for acute emergencies. 

Anyone is welcome to book a haemodialysis session at our clinic. We provide both inpatient and outpatient dialysis, as well as therapeutic apheresis and holiday dialysis for patients visiting London.

Find out more about holiday dialysis >

Dialysis is used to remove waste products and excess fluid from the blood in patients whose kidneys don’t work properly – a condition known as end-stage kidney disease (ESKD) 

Healthy kidneys filter the blood and remove waste products by turning them into urine. When a patient has advanced kidney disease, this process does not occur and they are likely to become very ill.


Haemodialysis involves filtering and cleaning the blood through a dialysis machine.  

Patients are connected to the haemodialysis machine through two needles which are inserted into a fistula, usually in your arm. One needle takes your blood to the machine for cleaning and the other needle returns your cleaned blood.  

A fistula (arteriovenous fistula) is larger, stronger blood vessel in your arm that makes it easier to transfer your blood to and from the dialysis machine. A fistula is created by connecting an artery to a vein during a short surgical operation. Fistulas are usually created in the forearm. 

A fistula usually needs to be created around four to eight weeks before haemodialysis can begin. This is so that the vein has time to increase in size.  

Occasionally, patients may opt to undergo dialysis through a tunnelled ‘neck line’ instead of a fistula. These lines can be used immediately.

Haemodialysis patients are restricted on how much fluid they can drink in between dialysis sessions. This is because the dialysis machine won’t be able to remove all the waste product if there’s too much fluid in the body.  

Haemodialysis patients also need to watch their food intake, so minerals like sodium, potassium and phosphorus don’t build up to dangerously high levels between dialysis sessions.  

Most patients require a dialysis session three times a week. Each session lasts for approximately four hours.

Haemodialysis patients may experience fatigue, nausea, dizziness, itchy skin and/or muscle cramps.

Some patients only need dialysis for a short time if they have temporary kidney failure.  

If your kidney failure is chronic (i.e. end-stage kidney disease), you will likely need dialysis permanently unless you have a kidney transplant. 

Why choose us for dialysis?

Paying for your treatment

We welcome both self-paying and insured patients.

Our locations

Book an appointment today

Our telephone lines are open 8am to 8pm Monday to Friday and 8am to 2pm Saturdays.


Alternatively, fill out our appointment request form and we'll be in touch shortly.

Please note - regrettably we are unable to answer specific medical questions or offer medical advice via email or telephone.