New Freezing Heart Procedure at Norfolk and Norwich University Hospital

9 April 2019

Image Caption

The 'Balloon' Inserted into the Heart's Left Atrium.

Norfolk and Norwich University Hospital (NNUH) have begun using a procedure that involves freezing the heart to help reduce the symptoms of an irregular heart rhythm. 

Patients from Norfolk and Suffolk who have an irregular heart beat – atrial fibrillation (AF) – are benefiting from a treatment that freezes the veins leading into the heart. AF is the most common type of abnormal heart rhythm, which is caused by uncoordinated electrical impulses that causes an irregular ‘quivering’ of the top chambers of the heart. More than one million people in the UK have the condition. When the heart does not contract at a normal rhythm, there is a risk of a blood clot developing inside the chambers of the heart.

The cardiology team at NNUH have begun the procedure, called cryoablation, following funding for new equipment from the Norfolk Heart Trust. The procedure, which involves a consultant cardiologist, cardiac physiologists, lab nurses and specialist nurses, involves inserting a balloon into the left atrium and freezing the four veins leading into the heart.

The Trust also carries out radiofrequency ablation, under general anaesthetic, which uses heat to treat AF.

Norfolk and Suffolk patients previously had to travel to Cambridge or London to have this treatment which aims to relieve the symptoms of AF.

Dr Richard Till, Consultant Cardiologist and Electrophysiologist, said the development was part of NNUH’s strategy to treat more complex heart conditions nearer to home.

He said: “We are the third hospital in East Anglia to offer invasive treatments for atrial fibrillation. AF can cause palpitations, breathlessness and tiredness for patients and this procedure can have a big impact on quality of life and improves the symptoms of AF. It is particularly effective in patients with intermittent episodes of AF. Patients who have cryoablation can usually go home on the same day that they have the procedure and we have had very positive feedback so far.”

The Trust has capacity to carry out about 50 cryoablations a year. However, there is potential to increase the numbers of procedures with the planned development of the new Interventional Radiology Unit (IRU) at NNUH, which will increase lab capacity.

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