Southampton boy died after stitch blocked artery
9 April 2014 Last updated at 02:29 BST
A surgeon has told an inquest into the death of an 11-month-old boy that "he had a condition not compatible with life".
Mahir Chowdhury died following a heart operation in Southampton, during which a surgical stitch blocked his artery.
His parents say they were not fully briefed of the risks.