Irregular Heartbeat
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Reviewed By:
Osler Jay Justo Guzon, MD (Cardiology)
Dr. Guzon graduated from the University of Missouri-Kansas City School of Medicine with a BLA and MD. He then completed his Internal Medicine Residency at St. Louis University before a fellowship in Cardiovascular Diseases at the University of Missouri-Columbia. He has since working as an invasive cardiologist with a particular interest in preventative medicine and cardiometabolic disease. Over the past several years, Dr. Guzon has served on the speaker bureaus of AstraZeneca, Lilly, Boehringer-Ingelheim, and Aralez.
Tatsuya Shiraishi, MD (Cardiology)
Dr. Shiraishi graduated from the Kyoto University School of Medicine. He worked as a cardiologist at Edogawa Hospital, and after joining Ubie, he became the Director of East Nihonbashi Internal Medicine Clinic.
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Content updated on Jan 4, 2023
About the symptom
Irregular pulse indicates that the heart is out of its usual rhythm. It may feel like the heart skipped a beat, added a beat, or is "fluttering."
When to see a doctor
Seek professional care if you experience any of the following symptoms
A rapid heart rate prior to fainting with loss of consciousness
Peripheral cyanosis
Altered mental status (delirium)
Difficulty breathing / breathlessness
Fainting with loss of consciousness
Possible causes
- Benign arrhythmias such as extrasystoles
Arrhythmias are problems with the rate or rhythm of your heartbeat, where it might beat too slowly, too fast or with an irregular pattern. Benign arrhythmias are heartbeat irregularities which do not cause any symptoms. Causes include certain medications, caffeine, nicotine, alcohol, cocaine, inhaled aerosols, diet pills, stress, etc.
- Atrial fibrillation (AF)
Atrial fibrillation is a heart condition that causes an irregular and often abnormally fast heart rate, that can lead to blood clots in the heart. Atrial fibrillation increases the risk of stroke, heart failure and other heart-related complications. Atrial fibrillation can be caused by many conditions, most commonly heart valve diseases and heart failure.
- Graves' disease
A condition of an overactive thyroid gland. It is a disorder where the immune system mistakenly attacks the thyroid gland.
- Amyloidosis
- Pulmonary arterial hypertension
- Tuberous sclerosis
- QT prolongation syndrome
- Systemic lupus erythematosus (SLE)
Related serious diseases
- Atrioventricular block . sick sinus syndrome
These describe a group of conditions wherein there is a problem in the electrical conduction system of the heart. Depending on the condition, signals may be transmitted abnormally fast, slow or not be transmitted at all to some areas of the heart. Men and women are both affected. The risk of increase with age.
Questions your doctor may ask about this symptom
Your doctor may ask these questions to check for this symptom
Does your pulse feel disordered (irregular)?
Do you have a fever?
Do you have any chest pain?
Are you breathless or having hard time breathing?
Do you have nausea or vomiting?
Other Related Symptoms
Similar symptoms or complaints
Symptoms from the same body system / part
Symptoms treated by the same specialty
Reviewed By:
Osler Jay Justo Guzon, MD (Cardiology)
Dr. Guzon graduated from the University of Missouri-Kansas City School of Medicine with a BLA and MD. He then completed his Internal Medicine Residency at St. Louis University before a fellowship in Cardiovascular Diseases at the University of Missouri-Columbia. He has since working as an invasive cardiologist with a particular interest in preventative medicine and cardiometabolic disease. Over the past several years, Dr. Guzon has served on the speaker bureaus of AstraZeneca, Lilly, Boehringer-Ingelheim, and Aralez.
Tatsuya Shiraishi, MD (Cardiology)
Dr. Shiraishi graduated from the Kyoto University School of Medicine. He worked as a cardiologist at Edogawa Hospital, and after joining Ubie, he became the Director of East Nihonbashi Internal Medicine Clinic.
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Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan