The coroner said: "He had been reported to have been fit and well until around January 2024, when he had a number of admissions to hospital before this final admission."
He added: "I have also received notification from the trust that a medical cause of death can be offered and, therefore, I will consider evidence from the clinicians involved in Mr Campbell's care as to the cause of his death.
"The provisional cause of death, as it stands, refers to Mr Campbell dying from multi-organ failure as a result of infective endocarditis."