The world's first and only heart attack warning system
24/7 monitoring with real-time heart attack detection and patient alerts
The GUARDIAN is an implantable cardiac monitoring device which alerts the patient when a potential ACS event is detected, even in the absence of symptoms.
Programmed to match the individual patient, the GUARDIAN monitors the patient’s heart 24/7 and alerts the patient upon detection of signals related to acute coronary syndrome (ACS) events so the patient can seek medical care without delay.


For patients who have had a prior cardiac event and are at high risk of a recurrent event
The GUARDIAN is indicated for use in patients who have had prior acute coronary syndrome (ACS) events and remain at high risk for recurrent ACS events.
The GUARDIAN device fills an unmet medical need by providing more effective diagnosis of a life-threatening condition when compared to patient symptoms alone
FDA Summary of Safety and Effectiveness Data (SSED) on file at Hydrix