Bigeminy vs Trigeminy


For a healthy heart to function, it should beat in a steady rhythm with the lower and upper chambers beating in a consistent pattern. After each heartbeat, there should be a slight pause and then the heartbeat resumes. 

Irregular heartbeats and unusual heart rhythms are often labeled as either bigeminy or trigeminy, depending on the sequence of beats and irregularities within the heart. For example, with patients that suffer from bigeminy, each regular heartbeat is followed by another heartbeat that arrives prematurely, in a series of long and short beats. For sufferers of trigeminy, the heart tends to beat in an unusual three-beat pattern.

Don’t worry if you’re a little confused between bigeminy and trigeminy, we’re going to break down both of them for you. 

What is Bigeminy  

As mentioned before, if you suffer from bigeminy, each of your regular heartbeats is followed by a heartbeat that arrives too quickly. Each pair of beats are considered as “twins,” which is where the name bi – Gemini comes from. 

In the medical world, if those early heartbeats come from the heart’s ventricles, they’re known as premature ventricular contractions or PVCs. If the early heartbeats emerge from the heart’s upper chambers, also known as the atria, then they’re referred to as premature atrial contractions (PACs.)

Whenever your heart beats, the right ventricle pumps blood to the lungs in order to exchange carbon dioxide for oxygen. The left ventricle pumps blood through the aorta to the entire body and while this is happening, the atria fill with blood and move it downwards into the ventricles, in preparation for the next heartbeat. 

Blood will move into the ventricles between each heartbeat, however, you will feel a skipped beat if your heart has a premature contraction before the ventricles are able to fill with blood. The premature contraction will most likely feel different from a regular heartbeat because little or no blood at all is being pumped out of the heart. If your heart’s ventricles have had more time to fill with blood, your premature heartbeats will be more noticeable and the resulting sensation will make the heart feel like it’s faster than usual. 

when to worry about bigeminy

Causes of Bigeminy 

There can be many causes of bigeminy, such as:

  • Heart disease
  • High blood pressure
  • Caffeine
  • Excessive alcohol consumption 
  • Tobacco 
  • Anxiety
  • Exercise
  • Chemical imbalances 

If you do experience any of the symptoms of bigeminy, such as your heart beating faster than usual or your heart skipping a beat, then its crucial to contact a physician as soon as possible.  

What is Trigeminy

The three-beat pattern that doctors call trigeminy is a pattern of either two normal beats and an irregular one or two irregular beats with a regular beat. 

The heart has the ability to conduct its own electricity, that travels on a regular route. The electrical signals follow certain pathways and areas of the heart that communicate signals for the nearby heart muscle to beat. In the majority of people, electrical signals follow a designated pathway that can be traced with a portable EKG monitor

In some patients, the electrical signals can follow a different path that results in abnormal heart rhythms. The cause of trigeminy is an irritable area of the heart, where another area of the heart emits a separate signal that has an effect on how the heart beats. This is a normal occurrence for some people, there’s nothing wrong with their health or heart, it just has a different rhythm in comparison to most of the world. 

Causes of Trigeminy

It’s important to seek medical advice if you suffer from any of the symptoms of trigeminy. The symptoms are an elevated heart rate with a fluttering in the chest, chest pains, shortness of breath and syncope. 

Trigeminy can also be temporarily triggered by certain substances, such as: 

  • Cocaine
  • Alcohol
  • Caffeine
  • Methamphetamines
  • Nicotine
Causes of Trigeminy

The Bottom Line

It can be difficult to spot the symptoms of bigeminy and trigeminy, so if you do notice any tightness in the chest area with unusual heartbeats, it’s important to get yourself booked in with your physician for an EKG, as soon as possible. 


Where should I buy Portable EKG Monitor online?

Portable EKG monitors need to come from safe, reputable, and trusted medical technology providers. While there are many websites offering EKG monitors online, most of these are resellers. In many cases, it’s impossible to determine whether you’re getting the real thing. If you’re buying online, stick to the website of each provider. It’s the only way to ensure you’re getting the real thing. Here at, you’ll find the EKGraph, an exclusive smart, wireless, and portable EKG monitor.

Is Trigeminy worse than Bigeminy?

Generally speaking, no, it isn’t. For a vast number of people, trigeminy is a relatively normal occurrence. Most people who experience trigeminy have no other symptoms and lead perfectly normal lives. On the other hand, bigeminy does pose somewhat serious health risks over time. Many people experience bigeminy at some point in their life without consequence, particularly children and teens. However, bigeminy does put you at an increased risk of developing arrhythmias, which can produce fatal blood clots and strokes. Additionally, the extra strain on the heart produces enlargement of the organ and possible heart failure.

What should i do after having the symptoms of bigeminy and trigeminy

Bigeminy and trigeminy are rather subtle conditions, most of the time. Their symptoms are hard to identify, especially for patients experiencing them. When you start to notice feeling a tightness in your general chest area, especially combined with unusual heartbeat patterns, you need a professional opinion. You will have to make an appointment with your doctor to get an EKG. An EKG can confirm whether or not your symptoms actually match either of the conditions. Then, you can be properly diagnosed and treated.

3 thoughts on “Bigeminy vs Trigeminy

  1. Pamela Thirlaway says:

    Thank you for this information. I have been diagnosed with ventricular ectopy with bigeminy and trigeminy. The consultant did not explain what this was so finding your information was good. Thank you.

    • says:

      Thank you for the encouraging words Pamela! We specialize in heart health and actually sell a portable EKG device that you can use at home. Can help you capture heart issues that you Doctor missed.

  2. Mary Charlotte Hall says:

    My EKG results, following 24 hour Holter monitor, are written as follow: “PVCs, V Couplets, V- Bi Trigeminy”.
    1.What does the “V” indicate, and is the condition being reported “Bi-“ or “Tri-“ geminy???
    2. How do these three conditioners work ( or not work) together?

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