Freedom of Information Request Ref: UHB09/206
Thank you for your request for information under the Freedom of Information Act 2000. In response to
your questions I am happy to respond.
1 Which type of existing heart valve is replaced by which choice of heart valve (mechanical vs
biological)?
The majority of the information is available in the Cardiac Services Adult Cardiac Surgery Audit Report
2007-2008. Please see attached.
Biological Mechanical
Aortic valve 77% 23%
Mitral Valve 33% 67%
Pulmonary
100%
Valve
Not
Tricuspid valve
Available
2 What are the mortality rates from the initial operation in the short term (1 year) and the long term
…for each type of valve operation and the chosen replacement?
The long term mortality figure are not recorded as they are not yet available.
Short term mortality figures are
Aortic valve 168 procedures 2 deaths 1.20%
Mitral valve 64 procedures 1 death 1.60%
Pulmonary not available
Tricuspid not available
3 How often do the mechanical and biological valves require replacement?
The number of re-do aortic valve replacements in the period was 17.
The number of re-do mitral valve procedures in the period was 13.
4 Who makes the biological and mechanical heart valves used at your hospital?
The valves are made by one of two companies:
SORIN GROUP HEART VALVES
Strada per Crescentino - 13040 Saluggia, Italy
St Jude Medical Inc.
1 Lillihai Plaza, St Paul MN 55117-9983 USA