The Threat to Patients with “Silent A-Fib” How to Reach Them?
‘Silent A-Fib’ is a serious public health problem. Anywhere from 30%-50% of those with A-Fib aren’t aware they suffer from A-Fib and that their heart health is deteriorating.
In his A-Fib story, Kevin Sullivan, age 46, wrote about his diagnosis of Silent A-Fib.
“I was healthy, played basketball three times per week, and lifted weights. I started to notice on some days playing basketball, I was having some strange sensations in my chest. And sometimes, difficultly catching my breath. But the next day I would feel fine. I assumed this was just what it felt like to get old.”
He writes, that at the time, he happened to see a cardiologist about medication for high cholesterol:
“I went to see a cardiologist. They looked at my heart with ultrasound and asked if I could feel “that.” I asked them what they were talking about, and they told me that I was having atrial fibrillation. That was the first time I had ever heard of the phrase.”
‘Silent A-Fib’ vs. ‘Symptomatic A-Fib’
Silent (asymptomatic) A-Fib can have similar long-term effects as A-Fib with symptoms. Silent A-Fib may progress and get worse just like symptomatic A-Fib. Increased fibrosis may develop, the atrium may become stretched and dilated, the frequency and duration of the unnoticed A-Fib attacks may increase over time (electrical remodeling).
Is “Silent A-Fib” Really Silent? Some people question whether “silent” A-Fib is really silent (from a clinical aspect). Even with Silent A-Fib, one loses 15%-30% of normal blood flow to the brain and other organs which certainly has an effect. (For Kevin Sullivan, he experienced occasional pain in his chest and shortness of breath while playing basketball.)
Those with Silent A-Fib may get used to their symptoms, or they write off the tiredness, dizziness or mental slowness like Kevin Sullivan did. Nonetheless, almost everyone in Silent A-Fib is affected and changed by their A-Fib to some extent.
‘Silent A-Fib’ More Dangerous: Increased Risk of A-Fib Stroke
When left untreated, A Fib patients have a 5X higher chance of stroke, and a greater risk of heart failure. Often, an A-Fib patient is hospitalized or dies from an A-Fib-related stroke without anyone ever knowing the patient had A-Fib.
And if the patient with A-Fib survives, they have about a 50% higher risk of remaining disabled or handicapped (compared to stoke patients without A Fib).
Tactics to Find Undiagnosed ‘Silent A-Fib’
Today, during a routine physical exam, general practitioners (GPs) will listen to your heart with a stethoscope and would notice if your heart beat was irregular. After a certain age, your exam may also include an ECG (EKG), and the tracing would show if you are in Atrial Fibrillation, even if your not aware of it. Cardiologists routinely perform an ECG and catch Silent A-Fib (like Kevin Sullivan’s cardiologist did).
But, to be detected, A-Fib must be present at the time of the ECG, and we know that A-Fib is often intermittent. If intermittent A-Fib is suspected, your EP has an array of A-Fib wearable event monitoring devices (like the band-aid-size ‘Zio patch’ monitor).
What if A-Fib isn’t even on the patient’s radar? What’s the remedy? More frequent and regular screenings! But how? First, by healthcare personnel teaching ‘at-risk age groups’ how to use pulse-taking palpation (which can be readily taught). See also the VIDEO: “Know Your Pulse” Awareness Campaign.)
Second, through community-sponsored health screening events when patients who are interacting with their healthcare provider for another reason, such as an annual flu vaccination.
Think of the lives and permanent disabilities that would be saved by inexpensive screening and easily administered monitoring for Silent A-Fib.
The Future of Screening for Silent A-Fib: Heart-monitoring apps and devices are growing in popularity. Two FDA-approved devices are the iPhone app called Cardio Rhythm, and the AliveCor Kardia device that connects to a app-equipped smartphone.
What Patients Need to Know
If you have A-Fib, discuss it with your family and friends. Answer their questions. Because A-Fib runs in families, urge your immediate family members to discuss A-Fib with their doctors.
Encourage your friends over 60 years old to do the same. Support community-sponsored health screening events.