Peter Attia MDCardiovascular disease & why we should change the way we assess risk | The Peter Attia Drive Podcast
At a glance
WHAT IT’S REALLY ABOUT
Why 10-Year Risk Models Fail and ApoB Should Guide Prevention
- Sniderman argues that 10-year risk calculators are driven mainly by age and sex, so they delay prevention until about age 55-60 even though nearly half of heart attacks and strokes occur before 60.
- Atherosclerosis begins in the first decades of life, so treating late modifies existing disease while starting early can stop lesions from forming.
- ApoB counts the atherogenic particles that actually enter the artery wall, and Sniderman says it outperforms LDL-C and non-HDL-C, is cheap and standardized, and is needed to diagnose conditions like remnant type III.
- Mendelian randomization and the failure of HDL-raising drugs, in Sniderman's account, support ApoB as causal and HDL cholesterol as not causal.
- Sniderman criticizes guideline consensus and unanimity, the lack of confidence intervals on risk numbers, and the resistance to change, while Attia pushes back on his pessimism and adds the compounding-benefit analogy.
IDEAS WORTH REMEMBERING
5 ideasTen-year risk models make premature disease prevention nearly impossible.
Sniderman says age and sex drive the calculation, so most people under 60 look low-risk even though there are so many of them that the absolute number of events is high.
Atherosclerosis starts decades before clinical events.
Pathology work by Stary showed disease gaining a foothold in the first three decades, and Attia recalled autopsy images of young accident victims already showing atherosclerosis; Sniderman notes that once artery architecture is destroyed it cannot be restored.
Particle number matters more than cholesterol content.
Cholesterol reaches the artery wall only inside ApoB particles, so two people with the same LDL-C but different particle counts have different risk, and discordance analyses favor ApoB.
ApoB reveals conditions that a standard panel misses.
Remnant type III, with high cholesterol and triglycerides but low ApoB, can only be diagnosed when ApoB is measured, and it is treatable with statins and/or fibrates.
A coronary calcium score of zero should not override a high ApoB.
Sniderman views calcification as a sign of advanced disease, so a negative score does not mean the artery is healthy; a positive score in a young person is a clear alarm.
WORDS WORTH SAVING
5 quotesSo stopping disease is perfect prevention. Treating disease is partial prevention, and it has to be partial. Can't be more.
— Allan Sniderman
Any process that has unanimous recommendations has a weakness. Any process where the decisions become larger than the individuals who, who propose them has a weakness.
— Allan Sniderman
Science is about change. If we're still saying the same things we said 30 years ago, eh, could be a problem, because we should have learned how to say it better, more accurately.
— Allan Sniderman
The rate of events is low, but the absolute number of events is high.
— Allan Sniderman
I don't think we should ever compromise on truth, because when you do, you say, "I've got to do this in order to get to here."
— Allan Sniderman
High quality AI-generated summary created from speaker-labeled transcript.
