Question to the Department of Health and Social Care:

To ask the Secretary of State for Health, how many congenital heart disease surgery cases there were in (a) 1990-91 and (b) 2015-16; and how many of those cases resulted in a fatality.

The National Congenital Heart Disease Audit run by the National Institute for Cardiovascular Outcomes Research began collecting data in 2000-01. There are no reliable data from before that period.

In 2000-01 there were 4,105 surgical procedures and 227 deaths had occurred by 30 days after surgery.

In 2014-15 there were 5,661 surgical procedures and 158 deaths had occurred by 30 days after surgery.

2014-15 is the most recent year for which there is validated data. The 2015-16 data is still being validated against the Office for National Statistics death data and will be available later this year.