I will make a few generic comments but do hope that this doesn’t cause the thread to go astray...I usually only get involved if there is 'misinformation' out there. This is not a Q and A session.
I’ll start, as usual, with The generic disclaimer that everyone should, of course, speak to their own physician more in depth about any questions or concerns that they have regarding their health. The internet is not where you should get/make medical decisions generally. Fortunately, heart disease IS my area of expertise and I have lots of patients who are athletes, the majority (*but not all) adults over 35 years of age.
That said, I think there is a some confusion about the testing that is done, indications, and the information that is gained by doing this kind of testing. And it should always be remembered that test have a certain number of false positives and false negatives. In addition, there are costs involved and all of these things need to be weighed when ordering tests for patients. I won’t go into Bayesian considerations...There are proposed guidelines available for screening of athlete's (both here and in Europe).
After the tender age of 35 years, ischemic heart disease (CAD) is the number one reason for dying in the United States. Additionally, the risk will go up if there is a genetic predisposition for early heart disease- by definition, anyone with a first-degree family member having a heart attack or CAD diagnosed/treated before the age of 55 male or 65 female. I've said it a lot-you can't change your age or your genetics. And to that point, some people have additional risk factors like HTN, DM, inactivity or smoking. Although, far fewer of those latter 2 categories in triathletes.
Guidelines suggest that masters athletes/triathletes (anyone over 35) should be screened for pre-participation if there is increased risk based on: personal history/family history/symptoms or abnormalities on PE (*murmur/abn BP or certain vascular issues). Most people do not need to be screened. Certain people may be at increased risk and probably should see a cardiologist to determine if additional testing is needed on an individual basis. I am not going to do that here.
Tests that are available include:
EKG, echocardiography, exercise treadmill stress test (with/without echo imaging), pharmacologic stress test w nuclear imaging, cardiac MRI, coronary CT scan/calcium score, cardiac cath
Screening EKG's are of limited help in most people who are asymptomatic. We do EKG's to assess the conduction/electrical system and look for ischemia/infarct-signs of trouble with the blood supply or a heart attack actually happening and it will usually show changes after one has happened. Stress tests in general are 'ok' for diagnosing CAD but are better in assessing risk. Adding imaging increases the sensitivity of the test for diagnosing CAD and is an additional check of risk as you see how much heart muscle 'appears to have trouble' with it's blood/oxygen supply. Echo tests look at the heart function/valves etc. Calcium scores and CT of the chest looks to see if plaque has already formed in the coronary arteries and is an anatomic test looking at amount/density/severity of plaque. Risk goes up-especially when the number is greater than 400 and those patients usually get additional tests. Cath is the gold standard for assessing amount of plaque/stenosis and is the means of opening up clogged up arteries urgently with a stent, if able.
None of the tests are perfect and there are reasons that they can look abnormal but patients can have normal coronary arteries.
I will say, that one thing that I'm reading here is erroneous and should be understood-if you have any score above 0 on a calcium score, you likely have CAD. It may be minimal, but you have it. I don't usually do multiple 'screening' tests once you have a real number. We look for symptoms that might need testing at that point and always treat lipids aggressively.
I'm not going to debate the importance of statins or the importance of checking/knowing your numbers (lipids/bp/weight/blood sugar)...you should all talk to your own MD's about that. I've already said my piece about statins here:
https://forum.slowtwitch.com/...st=last-6643505#last I've already talked enough about SCD in triathlon also.
https://forum.slowtwitch.com/...riathlon_P6427784-2/ I'm a believer that you will be at lower risk if you have a coronary calcium score >0 and take baby aspirin and a statin. I have a personal history premature CAD and have had moderately elevated LDL my entire life (130-140). I got my calcium score done this year and knew that I might subject myself to needing meds x life, but I want to be there for my kids weddings.
Hope this helps.