Hyperacute T Waves are specific for Occlusion Myocardial Infarction, even without diagnostic ST elevation.

Background: Despite no objective definition, hyperacute T waves (HATW) are recommended by the American College of Cardiology as a STEMI equivalent finding, requiring emergent reperfusion.

Objective: We sought to derive and validate a quantitative definition of HATW.

Methods: We retrospectively evaluated adults with possible ACS across five PCI centers.

On recombination-induced multiple and simultaneous coalescent events.

Coalescent theory deals with the dynamics of how sampled genetic material has spread through a population from a single ancestor over many generations and is ubiquitous in contemporary molecular population genetics. Inherent in most applications is a continuous-time approximation that is derived under the assumption that sample size is small relative to the actual population size. In effect, this precludes multiple and simultaneous coalescent events that take place in the history of large samples.