Author Details 'Living With Death' In Her 20s And Scrambling For Life-Saving Care

Eleven years ago, when she was 24, Katherine Standefer was working as a ski instructor and a climbing teacher in Jackson, Wyo., when she suddenly passed out in a parking lot. She later learned that she has long QT syndrome, a genetic heart condition in which the heart can suddenly quiver instead of rhythmically pumping blood.

"[The syndrome] can lead to there not being enough blood in vital organs, which causes someone to pass out," Standefer says. "If they're lucky, they might wake back up. If they're not lucky, they could die of sudden cardiac death."