Overview: Cardiac arrest is the sudden stopping of the heart from beating.
Cardiac arrest is a sudden stop to the heartbeat. It can occur in people who have been diagnosed with HCM. It also occurs in some people who have never been diagnosed; in other words, sometimes it is the first symptom of HCM. (Many other heart diseases can also lead to cardiac arrest.)
American Heart Association. (n.d.). About Cardiac Arrest. About Cardiac Arrest l American Heart Association. Retrieved March 19, 2021, from https://www.heart.org/en/health-topics/cardiac-arrest/about-cardiac-arrest
Mayo Clinic. (n.d.). Sudden Cardiac Arrest. Diseases & Conditions. Retrieved March 19, 2021, from https://www.mayoclinic.org/diseases-conditions/sudden-cardiac-arrest/symptoms-causes/syc-20350634