He added: "The most common scenario is that the small scar found is produced by a virus he’s suffered at some point in his life and wasn’t ever detected.
"But it has nothing to do with Covid or the Covid vaccine.
"I spoke with no-one before Sergio’s retirement announcement because this formed part of my duty of professional secrecy, but he allowed me to speak to the media and explain things.
"It was a shared decision for him to quit professional football.
"He was very anxious and when I saw the test results the first thing I said was: ‘If you were my son, I would advise you to go this way."
It was revealed that Josep Brugada, the Barcelona-based cardiologist in charge of his treatment, also spoke to Aguero about his situation.
Peidro revealed that while the forward could 'probably' have continued to play, they couldn't be sure that the arrhythmias would not occur again.
"He took it on board and then Josep Brugada, the Barcelona-based cardiologist in charge of his treatment, also spoke with him and his mum," he said.
"We thought it best he stop playing professional football and it’s probably the wisest decision.
"He could probably carry on playing and the arrhythmias might never occur again, but we can’t be sure.
"In the face of the slightest doubt we said we would rest easier if he quit and he saw it like that as well."
Aguero's heart problem was detected after he was
, with the forward later taken to hospital.
He announced his retirement on Wednesday at an emotional press conference at the Nou Camp, having made just five appearances for the Catalan giants since his move from City in the summer.
When it was reported that Aguero was expected to announce his retirement from the game, some people began to speculate on social media that his heart problems were covid-related. This also occurred when Charlie Wyke recently collapsed, but pundits were quickly