Adam Cairns, the Chief Executive of Cardiff and Vale University Health Board, which runs the University Hospital of Wales, has told BBC Radio 4's World at One programme that 12 patients have died on the cardiac surgery waiting list over the last 15 months.
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It will be a bright start to Saturday, with some sunny spells. However, cloud and rain will reach the far west by late-afternoon.
Researchers at Cardiff University have unveiled a new drug that's extending the lifetimes of some cancer patients.
Showers will become confined to northern parts through the course of the night, with clear spells developing elsewhere.