025 The Case of Erratic Heart Palpitations w/ Dr Christopher Kelly

The Case:

• Erica is 37 and was experiencing fast and loud heart palpitations without provocation.
• These episodes became more frequent causing Erica to fear the worst.
• She saw several cardiologists who insisted that nothing was wrong.

A racing heart or heart palpitations are described in many ways. Some might say, ‘my heart is beating out of my chest,’ or ‘my heart skipped a beat’. It can also be described as being able to feel your heartbeat in your ears, or like it’s banging against your rib cage. You might even feel like you can’t catch your breath.

However you describe it, it’s scary. We get used to not really noticing our heartbeat - to just knowing that it’s in there, doing its job. So, when we suddenly feel it, we worry that something must be wrong. In some cases, heart palpitations can be a sign of a more serious issue so Erica was right to see her doctor and a cardiologist first.

However, when she came to me with no answers from those specialists, I knew we had to dig a little deeper to get to the root cause of these frightening and erratic heart palpitations.

The Investigation

The heart is very responsive to other types of stimulation. When you see a cardiologist, they generally don’t have a lot of time to look into these other causes. Understandably, they focus on major issues or events that are life threatening and if those are not the cause, they may dismiss your concerns as ‘nothing’. But, that doesn’t stop them from happening or make you feel any better about it when it does happen.

Luckily, some cardiologists go beyond the ‘it’s not a heart attack’ diagnosis to get curious about what’s actually going on. One such cardiologist is Dr Christopher Kelly. He practices at the North Carolina Heart and Vascular (part of UNC Health) and is the co-author of the book, Am I Dying?!: A Complete Guide to Your Symptoms--and What to Do Next. I was thrilled to invite him in to discuss Erica’s case.

Could it be a Heart Condition?

We know in Erica’s case it wasn’t but how likely for a fairly healthy 37 year old to have a heart condition? Dr. Kelly says that without a pre-existing condition (that you may have been born with) it’s unusual to see heart disease in people under 50. However, he’s seeing a trend where the average age of his patience is getting younger. He attributes this to the American lifestyle which is making people sicker, sooner.

What are Heart Palpitations?

Dr. Kelly describes heart palpitations as an extra beat or a skipped beat, a racing heartbeat, or your heart beating hard enough that you notice it. Generally this is without explanation. For example, we know that when we are working out or running, we are going to feel our heart beat faster. Or, if we have a scare or we’re understandably nervous, then we know why our heart might be racing. However, heart palpitations can seem to come out of nowhere and for no apparent reason. This is why they are so disconcerting.

How Common are Heart Palpitations?

Having a spontaneous, unprovoked heart palpitation occasionally is very common. However, when it seems to be happening regularly, without explanation, this is not common and should have you seeking professional help. The first thing you want to do is rule out that these heart palpitations are not related to heart disease.

What Causes Heart Palpitations?

When a heart condition is ruled out, there are several other places that we can look to find a cause for heart palpitations. The heart is very sensitive to a lot of inputs. One of the inputs to the heart is adrenaline which is the fight or flight hormone. We release adrenaline when we are scared, nervous, or excited but we can also release it when we are stressed or experiencing anxiety. In some cases, we may not be fully aware that we are in a state of stress or anxiety but the adrenaline is released anyway which is what can cause the seemingly unexplained heart palpitations.

Heart Palpitations May Be a Side Effect

Certain medications may cause heart palpitations. For example, some decongestants (cold or flu medications) actually contain adrenaline stimulants. Likewise, certain medications used to treat attention deficit disorder (like Adderall and Ritalin) also stimulate the heart.

Does Coffee Cause Heart Palpitations?

Coffee and many teas contain caffeine which does stimulate the heart. Excess caffeine intake can cause heart palpitations. So, what is considered too much coffee? That depends on the individual as some people are more sensitive than others to the stimulant. Each person is going to discover their limits when they drink so much caffeine that it causes their heart to race.

Heart Palpitations When Pregnant

When a woman becomes pregnant, in addition to having to supply blood to her own body, the heart has to pump blood to the placenta and the fetus. This can cause the heart to work overtime and this can cause the heart to race or skip a beat.

When Heart Palpitations Mean Something Bigger

There are other conditions that can cause heart palpitations. One condition is anemia. This causes heart palpitations because in this state, there is a low number of red blood cells in your body. When your body is not making a normal amount of blood, your heart has to work harder to pump the blood in order to deliver enough oxygen to the rest of your body.

Hyperthyroidism is another condition that can cause the heart to race. The thyroid gland controls your metabolism. When it is overactive, it can overstimulate the metabolic process which can cause heart palpitations. This same thing can occur for people who are treating an underactive thyroid (hypothyroidism) especially if it is caused by Hashimoto’s disease because then thyroid production tends to fluctuate.

Tracking Heart Activity

One of the best ways to determine the root cause of heart palpitations (if it has been ruled out as a heart condition by a doctor) is to track when you have episodes. Keeping a diary involves writing down things like the time that it started, what you were doing (or thinking about), and how long it lasted. This can reveal a pattern and the cause. If possible, also include your pulse rate in the diary and note any irregularities in the rhythm. If you don’t have a smartwatch or fitbit that tracks your pulse, Dr. Kelly explains how to do this manually in the podcast.

Worsening Symptoms

If left unaddressed, heart palpitations can become more frequent or become more intense (some people say that their racing heart is so forceful it actually hurts). For some people, heart palpitations interrupt the flow of blood so much that it can affect the blood pressure and cause light-headedness or even loss of consciousness. If this is the case, it’s not something to be ignored. Look at eliminating potential causes (including caffeine and stress) and speak to your doctor about what may be causing heart palpitations as a side effect. Be sure to bring your heart diary to your doctor appointment!

Treating Heart Palpitations

The treatment for erratic heart palpitations depends entirely on the cause of the palpitations. If through journaling you can see that your heart palpitations are related to stress, worry, or anxiety then one of the key things you can do to treat your racing heart is to take deep breaths...