Cardiff's University Hospital of Wales 'dangerous' say surgeons
26 July 2013 Last updated at 15:26 BST
Some departments at Wales' biggest hospital are dangerous with patients dying while waiting for heart operations, according to its own surgeons.
They also claim that patients, including children, have suffered, because scheduled operations have been postponed at the University Hospital of Wales, Cardiff.
Hospital chiefs said they were addressing the problems.
BBC Wales health correspondent Owain Clarke reports.