AED Lawsuit Attorneys in Missouri

Were You Harmed by Improper AED Use?

When someone suffers a cardiac emergency, every second counts. Brain damage can begin in as little as four minutes without proper intervention, and an automated external defibrillator (AED) can be the device that makes the difference between life and death. These compact machines are designed to restore a normal heart rhythm during cardiac arrest, but they can only save lives when they are present, in working order, and in the hands of someone trained to use them.

When an AED was absent, broken, or inaccessible due to someone else's negligence, the consequences can be devastating and irreversible. Those consequences may also justify legal action. If you or a loved one suffered serious harm or died because of an AED failure in Missouri, you should get answers by talking to an attorney from Aaron Sachs & Associates, P.C. We can go over what happened, hear your side of the story, and let you know if there are grounds to start a personal injury or wrongful death claim against the party or property manager that failed to use or maintain the AED system properly.

Don't wait to get answers. Call (888) 287-1046 or contact us online today to schedule a free, no-obligation consultation with our Missouri AED injury attorneys.

Why Choose Us for Your AED Lawsuit in Missouri?

When the stakes are this high, you need a legal team that knows how to handle your case and that genuinely cares about the people it fights for. You’ll find that and so much more at Aaron Sachs & Associates, P.C.

People choose us for their AED lawsuits in Missouri because we have:

• Proven results: Our attorneys have recovered more than half a billion dollars in settlements and verdicts for injured Missourians and their families.
• Extensive experience: Our team brings more than 200 years of combined legal experience to every case we take on.
• Long-standing commitment: We have been standing up for accident and injury victims throughout Missouri since 1991.
• No upfront costs: We work on a contingency fee basis, meaning you pay nothing unless we win your case.
• Free consultations: You can speak with our team at no cost and with no obligation to learn where you stand.
• Statewide service: We proudly represent clients anywhere in Missouri — we see you as our neighbor, no matter where you call home!

Behind every AED lawsuit is a person who deserved a better outcome, and we take that personally. We will take the time to understand your situation, explain your rights without legal jargon, and fight to hold the negligent party fully accountable.

When AED Negligence May Lead to a Lawsuit in Missouri

Not every cardiac event and AED use gives rise to a legal claim, but when an AED failure played a role in worsening the outcome, there may be grounds for a personal injury or wrongful death lawsuit.

Typically, AED negligence in Missouri generally takes one of three forms, including:

1. No AED when one was required: Missouri law requires all basic life support ambulances and stretcher vans to carry an AED and to be staffed by at least one trained user. Starting in the 2026–2027 school year, public schools must also place AEDs throughout their campuses as part of a mandatory Cardiac Emergency Response Plan. When a facility that is legally required to have an AED does not, and someone suffers serious harm or dies during a cardiac emergency as a result, that failure may form the basis of a negligence claim.
2. Poorly maintained or non-functional AED: Once a property owner or business voluntarily acquires an AED, Missouri law holds them to a defined standard of care. Under the Public Access to Automated External Defibrillator Act (§190.092), they must maintain and test the device according to the manufacturer's guidelines, inspect it at least every 90 days, and test it at least every two years and after each use. An AED that fails during a cardiac emergency because it was neglected or never properly maintained may be actionable negligence.
3. Untrained staff: Having an AED on-site means little if no one knows how to use it. Missouri law requires AED owners to ensure that expected users receive certified training from a nationally recognized program, such as those offered by the American Red Cross or American Heart Association. Inadequate training is one of the most common and preventable forms of AED negligence.

Missouri's AED Laws That You Should Know

Compared to many other states, Missouri imposes limited requirements on where AEDs must be placed. Most businesses, workplaces, gyms, hotels, and public venues are not legally required to have an AED on-site.

However, once a person or entity chooses to acquire an AED system, Missouri law holds them to a set of obligations:

• Involve a licensed physician or medical authority in their AED program
• Notify the local EMS center of the device's location and type
• Maintain and test the device according to the manufacturer's guidelines
• Inspect the device at least every 90 days for signs of malfunction or tampering
• Test the device at least every two years and after each use
• Ensure that expected users are trained through a nationally recognized program, such as those offered by the American Red Cross or the American Heart Association

In other words, the law is designed to make it so people who enter a property and see an AED system can reasonably assume that trained personnel are present and able to use it in a cardiac emergency. 

Missouri's Good Faith Immunity for AED Users

Missouri law provides good faith immunity from civil liability to anyone who renders emergency care using an AED, as well as to the trainer, the AED owner, and the site owner, protecting those who act quickly in a crisis from being penalized for an imperfect outcome. It is important to understand, however, that this immunity applies specifically to the act of rendering emergency care.

It does not protect a business or property owner from liability for the negligence that preceded the emergency, such as:

• Failing to have a required AED on-site
• Allowing a device to fall into disrepair or go untested
• Neglecting to ensure staff were properly trained to use it

If you are concerned that good faith immunity might affect your potential claim, the simplest way to understand whether you have a case is to speak with one of our attorneys.

Aaron Sachs & Associates, P.C. Is Here to Help – Call Now

Cardiac emergencies are frightening enough on their own. When they are made worse by someone else's failure to have a working AED in place, that harm should be met with legal action. Our Missouri AED lawsuit attorneys are ready to review your case, answer your questions, and help you understand your rights and options, so please reach out as soon as you can.

Call (888) 287-1046 or contact us online today to get started with your free consultation.