Demry Miller never saw his widowmaker heart attack coming.
He was a healthy 53-year-old — not the kind of person he thought had heart attacks, he said. Then, he collapsed at his job in Granbury. His heart stopped beating.
Miller’s co-workers performed CPR, and he was taken by ambulance to a hospital in Granbury. Medical professionals ultimately decided he should be placed on ECMO, or extracorporeal membrane oxygenation, at Medical City Fort Worth…