While at the large cardiology conventions, my colleagues and I have often joked that the convention center would be the safest place in the world to have a heart attack.
Jena et al1 have turned that analysis around and looked at outcomes for hospitalized cardiac patients during the time that thousands of cardiologists are at the convention. Contrary to the a priori hypothesis that care would be compromised by so many of the top cardiologists being gone, they find that adjusted mortality for high-risk heart failure and cardiac arrest is lower at teaching hospitals during the cardiology meetings than during the rest of the year. And although patients were less likely to get a percutaneous coronary intervention for a myocardial infarction during the convention times, there was no associated decrement on myocardial infarction–associated mortality.
Redberg RF. Cardiac Patient Outcomes During National Cardiology Meetings. JAMA Intern Med. 2015;175(2):245. doi:10.1001/jamainternmed.2014.6801