Sisters' Shock Cardiac Arrests: A Mystery Unfolds

Two sisters, Kayla Messana, 35, and Kendra Cunningham, 38, have recounted their terrifying experiences after both suffering unexpected cardiac arrests in their thirties. Despite maintaining healthy lifestyles, Messana experienced a cardiac arrest on June 3, 2022, at age 31, requiring extensive CPR and defibrillator shocks. She remained in a medically induced coma for four days and was later fitted with a life-saving S-ICD.

Her older sister, Cunningham, residing in New Hampshire, faced a similar ordeal in February 2026 while tending to her newborn twins. She too collapsed from a cardiac arrest, receiving CPR from her husband before emergency medical responders intervened. Like her sister, Cunningham underwent treatment and received an S-ICD implant.

Both sisters lack any prior medical history that could explain these life-threatening events. They are currently undergoing various genetic tests in hopes of uncovering the root cause. The unexplained nature of their cardiac arrests has raised concerns for their children's health, prompting them to advocate for further research.

Having navigated the physical and mental toll of surviving sudden cardiac arrest, Messana and Cunningham are now dedicated to raising awareness. They host a podcast, 'Flatlined and Fine,' and share their journey online, emphasizing that cardiac events can affect anyone, regardless of age or health status. They urge the public to learn CPR and know the location of defibrillators.