Diseases & Conditions

Take advantage of our helpful guide on heart disease. Understanding your heart condition is the first step to maintaining good heart health. At Fountain Valley Regional Hospital and Medical Center, we feel a responsibility to share the latest heart care and information with our community. Here are some common heart conditions that we may treat.

Acute coronary syndrome

Acute Coronary Syndrome occurs when blood supply to the heart is suddenly blocked. It is a medical emergency and chest pain is its main symptom.


Angina is chest pain that is caused by reduced blood flow to the heart.


An arrhythmia is an abnormal heart rhythm.


Atherosclerosis is the hardening of the arteries due to plaque build up inside of the arteries.

Atrial fibrillation (AFib)

Atrial fibrillation (AFib) is a quivering, irregular heartbeat that may cause stroke and other heart-related complications.

Cardiac arrest

Cardiac arrest occurs when the heart suddenly stops working. It is a medical emergency.


Cardiomyopathy is an enlarged heart muscle. As the heart gets larger, it becomes weaker.

Congenital heart defects

Congenital heart defects are heart conditions that occur due to heart abnormalities present at birth. These defects can affect any part of the heart and can often be treated with surgery.

Coronary artery disease

Coronary Artery Disease refers to a buildup of plaque in the arteries of the heart. It can lead to a heart attack.

Heart attack

A heart attack occurs when blood flow to the heart is dramatically reduced. This loss of blood flow can cause portions of the heart muscle to die.

Heart block

A heart block occurs when the electrical signal that causes the heart to pump is interrupted or stopped.

Heart failure

Heart failure occurs when the heart is significantly weakened so that it can no longer adequately supply the body's cells with oxygen. Fatigue and shortness of breath make everyday activities difficult.

Infective (bacterial) endocarditis

Infective endocarditis is an infection of the lining of the heart. It may be caused by bacteria and can lead to complications such as heart valve destruction and congestive heart failure.

Inherited rhythm disorders (IRDs)

Inherited Rhythm Disorders (IRDs) cause irregular heart beats. IRDs can be managed with medication and other treatments.

Long QT syndrome (LQTS)

Long QT Syndrome (LQTS) is a heart rhythm disorder that may cause rapid, chaotic heartbeats. These rapid heartbeats may lead to sudden fainting, seizure or death.


Pericarditis is the inflammation of the sac that surrounds the heart.

Valve disorders

Valve disorders involve problems with the valves that regulate blood flow throughout the heart. In general, valves either harden or leak.

Let Fountain Valley connect you with a physician

Call ​(855) 226-3744 use our Find A Physician tool to be connected to a heart care specialist who can answer your questions. You can also read more about diseases and conditions in our Health Library​.