Speaking about her late partner, Ms O’Hagan said: “I just thought ‘How can this be happening? He went to A&E nearly a week ago and they sent him home.’
“It just didn’t seem to make sense. It was so unexpected, it was like a nightmare.”
A spokesperson for Manchester University NHS Foundation Trust said: “We have discussed his sad death with Ms O’Hagan, and we are undertaking a review of Mr Burgess’s care.”
Findings from that review will be shared with both Ms O’Hagan and the coroner, the trust spokesperson added.
The trust was awaiting the conclusion of the inquest before commenting further.
Ms O’Hagan said she met her partner in 2012, describing him as warm, friendly, intelligent and “very sharp”.
While she said he struggled with his weight, he was otherwise generally healthy and sometimes enjoyed cycling to and from work.
“He never went to the doctors, and I can’t remember him taking a day off work – he was always so committed to working and he was pretty tough,” she said.
On 24 April, however, he told Ms O’Hagan he was experiencing a “sharp pain” in his stomach and back.
Since it was not in his chest, they did not think it was heart related.
“He said he’d never felt anything like it before,” she explained.
“It was absolutely horrific, just completely out of nowhere.”