What Is Arrhythmia?

An arrhythmia is any change from your heart’s normal rhythm—whether your heart beats too fast, too slow, or irregularly. Because these rhythm changes can come and go, they may not show up during a routine checkup or short in-office ECG. 

Why Does it Happen?

Your heartbeat is regulated by an electrical system:

  1. Your heart’s natural pacemaker (sinus node) sends out an electrical signal
  2. Signal travels through the heart’s upper chambers (Atria), causing them to contract
  3. Signal moves to the lower chambers (ventricles), promoting another contraction

An arrhythmia occurs when there is a glitch in this system – when a signal is fired in the wrong place or at the wrong time.

Symptoms

  • Palpitations including sensations of fluttering, pounding, or skipped beats

  • Chest discomfort or pain

  • Shortness of breath

  • Dizziness or lightheadedness, fainting or near-fainting

  • Sweating, fatigue, or weakness

How is it Diagnosed?

Doctors can use a variety of tests, including

  • Electrocardiogram (ECG/EKG) – records your heartbeat
  • Holter monitor – a portable device worn for 24-48 hours to continuously track your heart rhythm. (CardiacCloud provides modern, wearable Holter devices that allow you to comfortably monitor while going about life.)
  • Event recorder/Loop Recorder – Used to capture irregular heart rhythms that happen less frequently
  • Electrophysiology Study (EPS) – A more in-depth test that maps your heart’s electrical system.
Learn More

Support for Every Beat, Every Day

Whether you’ve recently noticed an irregular heartbeat or have been living with symptoms for years, CardiacCloud makes it easier to stay informed and in control of your heart health. Our AI-powered, comfortable Holter monitors are built for extended wear, giving you a clearer, more complete view of your heart rhythm—without complicated wires, frequent clinic visits, or added stress.

By continuously capturing subtle, hard-to-detect patterns and securely sharing meaningful insights with your doctor, CardiacCloud supports faster, more confident clinical decisions when it matters most.