A pregnant teacher was “clinically dead” when she suffered cardiac arrest at her school in Beit Shemesh. Two students performed CPR and a medic arrived seconds later. Her brother had a similar event 4 years ago. See link to article about Hadassah hospital’s Cardio-Genetic clinic.
http://www.israelnationalnews.com/News/News.aspx/273293
https://www.hadassah.org/news-stories/cardio-genetic-clinic.html