It probably helped as well that St Thomas's is literally within a few hundred yards of Waterloo Station. The speed with which you can be in specialist care is

It probably helped as well that St Thomas's is literally within a few hundred yards of Waterloo Station. The speed with which you can be in specialist care is absolutely critical when it comes to cardiac problems - which is a large part of the reason why survival rates are far higher in places like Central London where you've got both fast response time for paramedics (for London as a whole, ~75% of 'immediately life-threatening' calls have a response time of under eight minutes) and multiple world class Hospitals with specialist cardiac centres. Even so, that's one hell of a lucky break your father had and fantastic that he both survived and is fine still!