What causes abnormal heart rhythms and palpitations? 18 possible conditions

Viewing 18 of 18 results

See a list of possible causes in order from the most common to the least.

1

Atrial Fibrillation and Flutter

Atrial fibrillation and atrial flutter are irregular heart rhythms that occur when the upper chambers of your heart (the atria) beat too fast.Atrial fibrillation can be sustained or can occur in bursts. It creates a...

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2

Paroxysmal Supraventricular Tachycardia (PSVT)

This condition is considered a medical emergency. Urgent care may be required.

Paroxysmal supraventricular tachycardia (PSVT) is a faster-than-normal heart rate. It can last from a few minutes to several hours. PSVT is a fairly common type of (arrhythmia) that can occur in a person of any age.

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3

Hyperthyroidism

The thyroid gland produces a hormone that controls how your cells use energy (metabolize). Hyperthyroidism occurs when the body produces excessive amounts, causing rapid heart rates, weight loss, and heat intolerance.

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4

High Blood Pressure Overview

High blood pressure (hypertension) increases your risk for heart attack, stroke, coronary heart disease, and other serious health problems.

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5

Mitral Valve Prolapse

In mitral valve prolapse the flaps of the heart's mitral valve do not close correctly, which can make blood leak from one chamber into another. Lifelong heart abnormalities likely contribute to this condition.

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6

Hypertensive Heart Disease

Hypertensive heart disease refers to heart conditions caused by high blood pressure. Possible signs of acute hypertension include sweating and chills.

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7

Drug Allergy Overview

This condition is considered a medical emergency. Urgent care may be required.

A drug allergy is an allergic reaction to a medication. Your immune system identifies the drug as foreign and acts to eliminate it from your body.

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8

Low Blood Sugar (Hypoglycemia)

This condition is considered a medical emergency. Urgent care may be required.

Also known as hypoglycemia, low blood sugar can be a dangerous condition. Hypoglycemia is rare in people who are not suffering from diabetes, the chronic disease that affects the body's ability to regulate blood sugar...

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9

Ventricular Septal Defects

A ventral septal defect (VSD) is a hole between the heart's lower chambers (ventricles). It can lead to difficulty breathing and pale or bluish skin, especially around the lips and fingernails.

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10

Congestive Heart Failure (CHF)

Congestive heart failure is a chronic condition that affects the four chambers of the heart. Early symptoms include fatigue and weight gain. Irregular heart beat and wheezing indicate a worsening.

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11

The Deadly Potential of Digitalis: Digitalis Toxicity

This condition is considered a medical emergency. Urgent care may be required.

Digitalis toxicity (DT) occurs when you take too much digitalis (also known as digoxin or digitoxin), a medication used to treat heart conditions. Signs of toxicity include nausea, vomiting, and an irregular heartbeat...

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12

Congestive (Dilated) Cardiomyopathy

Congestive cardiomyopathy, also known as dilated cardiomyopathy, is characterized by a weak primary pumping chamber in the heart. Your heart automatically attempts to correct for this inefficiency. In turn, thi...

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13

Ischemic Cardiomyopathy

Ischemic cardiomyopathy (IC) is a condition that occurs when the heart muscle is weakened. In this condition, the left ventricle, which is the main heart muscle, is usually enlarged and dilated. This condition can be ...

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14

Panic Disorder

Panic disorder occurs when you live in fear of having a panic attack. You are having a panic attack when you feel sudden, overwhelming terror that has no obvious cause. You may experience physical symptoms such as ...

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15

Septic Shock

This condition is considered a medical emergency. Urgent care may be required.

Septic shock is what happens as a complication of an infection where toxins can initiate a full-body inflammatory response. It often occurs in people who are elderly or have a weakened immune system. It is thought tha...

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16

Thyroid Storm

This condition is considered a medical emergency. Urgent care may be required.

Thyroid storm is a life-threatening health condition that is associated with untreated or undertreated hyperthyroidism. During thyroid storm, an individual's heart rate, blood pressure, and body temperature can soar t...

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17

Myocarditis

Myocarditis is inflammation of the heart muscle. It is a rare condition that can be caused by any number of autoimmune diseases, viral, bacterial, or fungal infections, or parasites. When you have an infection or a...

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18

Alcoholic Cardiomyopathy

Alcoholic cardiomyopathy is a form of heart disease caused by alcohol abuse. Long-term alcohol abuse weakens and thins the heart muscle. The damaged muscle cannot pump blood as it should, which deprives the bod...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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