Few studies exist about it with any disease, really, Jurdoc. Because it hasn't been allowed to be studied in this country, sadly, with only a few exceptions (Tashkin at UCLA, Harvard and the drug-abuse research arm of the NIH). Also--and when you think about this it makes sense--because people with ventricular, atrial, arterial and other cardio-v disease are a particularly vulnerable population to test it on. Most researchers are sensible enough not to risk that, just like you won't find them testing cannabis in maternal-fetal situations, small infants, children's brains, or other vulnerable populations. Ethically the testing itself presents plenty of dilemmas in those groups.

What little we know about cannabis still largely comes from mice and rat studies, where, inevitably, they've been administered isolated cannabinoid compounds instead of the whole smoke or eaten or vaped herb like humans take in. So that's not research from which humans can really draw accurate conclusions about its safety or efficacy. Then we have anecdotal, or personal story, experiences. Notice that here in this thread the best, most detailed information we have is what's happened to us personally, particularly those of us who've been aware of its effects on our hearts.

Sad, really, that we're still so in the dark. It ought not to be this way.
birdgirl73 Reviewed by birdgirl73 on . vaporizer and heart/cardiac issues Ok, so here goes. I have a heart condition, a fairly serious one, for which I have an implanted cardiac defibrillator. in the past, on two or three separate occasions, after smoking cannabis, I have suffered attack-like symptoms, including loss of consciousness (after a 3 foot bong session lasting an hour or so) and had arrythmia (irregular heartbeat) and basically symptoms of my condition. i have begrudgingly come to the conclusion that i cannot safely smoke cannabis. however, my suspicion is Rating: 5