Angiograms should only be for those with classic symptoms of angina (nit controlled with anti-anginals), positive stress tests (in the setting of angina), pre-op for valve surgery to make sure you don’t need concomitant bypass surgery and myocardial infarctions.
I put stents in for a living and there’s nothing more I like doing than opening up a blocked coronary artery. But, when I bring a patient to the Cath lab for an angiogram, my hit rate is >75%. When I’m doing a Cath for one of my partners and they don’t have the appropriate indications, it falls to <30% and pisses me off.
Heart caths are invasive procedures and carry risk to the patient (including emergency bypass surgery and death). We need to have a good indication to justify the benefits being > risks. That doesn’t always happen “in the community” unfortunately
if you’re asymptomatic, you don’t need an angiogram (or a nuclear stress test). There are obviously extenuating circumstances, eg, if you’re going for an intermediate/high risk surgery and have multiple risk factors, a nuclear is not unreasonable for pre-op risk stratification