"If one is available online, it’s likely to be restricted to AHA members. If the results are important, there will probably be a simultaneous release of a link to an e-publication (eg, NEJM, Lancet)"

Agree 100% except that the online presentation, if available, would be for AHA meeting registrants. An AHA membership is different than a conference registration. An AHA member who did not register for the conference likely would not have access to this privileged content. But like cityslicker wrote, a simultaneous publication is very likely coming (no guarantee) and a ton of media coverage will be focusing on these late breakers. So even if we don't see the presentation, we will hear about the results almost immediately once it is presented and the AHA embargo is lifted.

BDAZ