There is a very small uptick in deaths from heart disease during the pandemic both from those with or having had covid being weaker and less able to survive a heart attack and from people being reluctant to go to the hospital or clinic when experiencing symptoms due to fears of contracting covid.
How about being plain old denied the opportunity to go to the hospital due to the unnecessary lockdowns and restrictions.
How has anyone been denied the opportunity to go to the hospital in the US due to the response to the pandemic?
During the lockdowns and restrictions, many clinics, medical centers, and hospitals were closed to people needing regular visits to such places for many different types of ailments.
Both my sister and my brother-in-law were denied such visits during the near entirety of 2020.
It doesn't sound like these were visits to the ER in the sense of "I think I might be having a heart attack", but something else. Certainly many elective procedures were postponed.
It sounds like an overall aging population was denied normally routine follow-up visits that could have prevented further deaths.
Its certainly possible. If so it should show up in non-covid related deaths in older folks showing up in the stats (which of course take a while to come out).
update: This
Lancet article on this very subject (increased cancer deaths during the pandemic due to fewer screenings) shows an uptick. (though again for cancer not heart disease, though its possible that might have occurred as well).