There is a heart condition that affects roughly one in ten people over the age of 80 — and that figure only counts the people who know they have it.
It is called atrial fibrillation, or AFib: an irregular heartbeat in the upper chambers of the heart. For many people it announces itself with palpitations, fatigue, or shortness of breath. But in at least a third of cases, it announces itself with nothing at all. Researchers call this “silent AFib,” and studies using long-term heart monitors have found that among people 80 and older, as many as one in seven have episodes they never felt and never knew about.
Why does a lawyer care about a heart rhythm?
Because of what silent AFib does. People with atrial fibrillation face a three to five times greater risk of ischemic stroke. Roughly one in five ischemic strokes is attributable to AFib — and AFib-related strokes tend to be more severe, more disabling, and more deadly than other strokes. The cruelest part is the order in which families learn the diagnosis: for too many people, the first symptom of their undiagnosed AFib is the stroke itself.
I am not a cardiologist, and nothing in this article is medical advice. What I am is the person families sit across from in the weeks after the stroke. And from that chair, I can tell you exactly what silent AFib looks like in legal terms.
The Planning Assumption Most Families Get Wrong
Most people, when they imagine needing an estate plan, imagine a slow decline. A gradual loss of memory. Years of warning. Time to “get the paperwork done” when things start to slip.
Stroke does not work that way. A person can be balancing their checkbook, driving to the grocery store, and managing their own medications on Tuesday morning — and unable to sign their name, communicate their wishes, or make a single legal or financial decision by Tuesday afternoon. No warning. No window. No chance to get the paperwork done, because the paperwork requires something the stroke just took: legal capacity.
What Happens If There Are No Documents
When a person loses capacity without a Power of Attorney and healthcare directive in place, the family does not simply step in. The law does not automatically hand a spouse or an adult child the authority to manage accounts, pay the mortgage, sell assets to fund care, or direct medical treatment.
Instead, the family must petition the court for guardianship — a public legal proceeding in which a judge declares your loved one incapacitated and appoints someone to act for them. It is slow, it is expensive, and it unfolds at precisely the moment the family is least equipped to handle it: while a parent or spouse is in a hospital bed, bills are arriving, and care decisions cannot wait. The person at the center of it all gets no say in who is appointed, because the time for them to choose has passed.
Every bit of that is avoidable with documents that take about an hour to put in place.
The Three Documents Every Adult Should Have — Before the Surprise
A Durable Financial Power of Attorney
This names the person you trust to handle your financial and legal affairs if you cannot. The word “durable” matters — it means the document remains effective after incapacity, which is the entire point. I have written before that it is nice to have a Will, but it is essential to have a Power of Attorney. Silent AFib is one of the reasons why.
A Healthcare Power of Attorney and Living Will
Together these name your medical decision-maker and record your wishes about treatment. After a major stroke, doctors will turn to someone for decisions. These documents make sure it is the someone you chose, guided by the wishes you expressed — not a default, and not a dispute.
A HIPAA Authorization
Privacy law prevents doctors from sharing your medical information, even with your own family, unless you have authorized it. In a fast-moving hospital situation, this simple document keeps your decision-makers informed.
Check Your Pulse, Check Your Documents
The medical community’s advice on silent AFib is refreshingly simple: it is one of the reasons your doctor takes your pulse at routine visits, and an in-office EKG is an easy, painless way to investigate an irregular one. If you have a smartwatch that flags an irregular rhythm, take the alert seriously and mention it to your physician.
My advice runs parallel. The legal version of the pulse check takes about as long:
Do you have a durable Power of Attorney? Is it less than a few years old? Does the person you named still make sense? Do they know where the documents are?
If your honest answer to any of those questions is no — or “I think so?” — that is your irregular rhythm. Investigate it.
The Bottom Line
Conditions like silent AFib are precisely why estate planning cannot wait for a warning. The entire value of a Power of Attorney and healthcare directive is that they exist before the moment they are needed — and that moment, for many families, arrives without an appointment.
You cannot control whether the surprise comes. You can absolutely control whether your family is ready for it. One of those preparations belongs to your doctor. The other belongs to us — and it is one of the simplest, least expensive things we do.
If your documents are missing, outdated, or you are not sure — call our office. The first consultation is free, and an hour now can spare your family months of court proceedings later.