beth israel deaconess medical center a harvard medical school teaching hospital

To find a doctor, call 800-667-5356 or click below:

Find a Doctor

Request an Appointment

left banner
right banner
Smaller Larger

Symptoms of Arrhythmias (Heart Rhythm Disturbances)

En Español (Spanish Version)

Main Page | Types of Arrhythmias | Cause | Risk Factors | Symptoms | Diagnosis | Treatment | Screening | Reducing Your Risk | Talking to Your Doctor | Resource Guide

Rhythm disturbances occur frequently enough to go unnoticed by most people. They can be fleeting and unpredictable. Under normal conditions, the heart corrects its misstep and continues beating as it should. In some people, arrhythmias can last longer, affecting the heart's ability to function properly. Longer lasting issues may be the result of conduction problems or ischemia, a reduction in blood supply to the heart.

Symptoms of Conduction Problems

It is possible for arrhythmias to go undetected until symptoms and complications appear. Loss of heart function may become noticeable when you experience symptoms. This may indicate the heart is unable to meet the body's demands.

Conduction problems may cause:

Symptoms of Ischemia

Ischemia can affect any organ or tissue in the body, including the heart muscle. The heart muscle needs a sufficient supply of blood and oxygen to work properly. When the heart muscle does not get enough blood, you may notice symptoms.

Ischemia may cause:

Over time, ischemia can damage the heart muscle. Damage and scarring can lead to heart arrhythmias.

Some arrhythmias you may feel are harmless, but others can be serious. Serious arrhythmias may cause a stroke , heart attack , sudden cardiac arrest , or death. If you experience any symptoms, call your doctor right away for an appointment.



  • Mayou R, Sprigings D, et al. Characteristics of patients presenting to a cardiac clinic with palpitation. QJM. 2003;96:115.
  • Symptoms, diagnosis & monitoring of arrhythmia. American Heart Association website. Available at: Updated October 25, 2012. Accessed March 19, 2014.
  • What are the signs and symptoms of an arrhythmia? National Heart, Lung, and Blood Institute website. Available at: Updated July 1, 2011. Accessed March 19, 2014.
  • Zimetbaum P, Josephson ME. Evaluation of patients with palpitations. N Engl J Med. 1998;338:1369.

Search Your Health