The examination was introduced at a meeting of the American Heart Association. Whether you are male or female, death in the saddle - or la mort d'amour as the French put it more delicately - is actually quite rare.
What is more, less than half those who have a heart attack during sex are likely to get CPR or any other first aid.
"For the last two decades we've been working on how to predict and prevent sudden cardiac arrest".
The team on this research looked at the timing of sudden cardiac arrest in the cases they studied, pulled from a database with 13 years of reports on the medical events in Portland, Oregon, to find if the cardiac issues occurred during sex or within minutes after the sex ended.
Almost 20 percent of the sex-related sudden cardiac arrest patients survived compared to just 12.9 percent of the non-sexual activity-related patients.
Odds of CPR were better, however, in sex-related cases.
The news is most welcome for patients with heart problems who aren't sure if sex could be unsafe, Chugh said.
Sexual activity was associated in fewer than 1% of the cases.
This was slightly higher than the 27 per cent of non-sex triggered heart attacks, the difference was not statistically significant and those individuals might have died alone.
Dr. Sumeet Chugh, senior author of the study and a professor of medicine at Cedars-Sinai Heart Institute in Los Angeles, told CNN that the large number of people helped strengthen the legitimacy of the study's findings. The risk of that happening is very low, according to a new study.
A sudden cardiac arrest (SCA) occurs when the electrical system that controls the beat rate and rhythm of the heart malfunctions, causing the organ to beat dangerously fast and cease functioning effectively.
There is another lesson though; survival rates after a heart attack are much higher where chest compressions and CPR are started while waiting for an ambulance. This happened mostly because only one-third of those who collapsed during received CPR, which could have increased survival chances.
"By now, there is recognition from a lot of research that if someone is around when you have your cardiac arrest and provides CPR while the ambulance is getting there, it can be potentially lifesaving", Chugh said.