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According to a Florida autopsy report a 4-year-old boy who collapsed in June after riding a rocket simulator at Walt Disney World had a serious heart defect which…

Heart failure patients are less likely to die after they go home from the hospital if the hospital has participated in an organized quality improvement program, compared with patients treated…

A University of Michigan Cardiovascular Center team today is reporting high levels of success, and lowered risk and radiation dose, from a new approach to treating…

Aspirin may significantly reduce death rates in post-menopausal women with heart disease, according to a long-term observational study reported by researchers on Monday.

“It was shown before and…

Stem cells derived from human heart tissue develop into multicellular, spherical structures called cardiospheres that express the normal properties of primitive heart tissue, smooth muscle and…

Heart attack sufferers who are left with very low ejection fractions - a sign that the heart is not pumping efficiently - appear to benefit from a novel procedure in…

A pot belly increases the risk of a Heart Attack - even if the rest of the physique is as skinny as a beanpole.

The person with that…

A variety of secondary prevention programs, even ones lacking an exercise component, can improve the health outcomes of people with coronary artery disease, new research shows.

Previous reports have shown…

Children who start out skinny and small, but gain weight relatively rapidly after the age of two are at increased risk for Coronary heart disease later in life, researchers…

According to the results of a new study by researchers at Johns Hopkins, Viagra, a drug used to treat Erectile dysfunction (ED) in millions of men, reduces the stimulatory effects…

An encouraging study presented at the Cardiovascular Research Foundation’s (CRF) Annual Transcatheter Cardiovascular Therapeutics (TCT) scientific symposium has shown that transplantation of bone marrow stem cells into the heart…

A new study has identified a molecular defect in cardiac cells that may be a fundamental cause of heart failure, a progressive weakening of the heart that leaves the…

In patients with left-ventricular dysfunction and severe mitral regurgitation secondary to associated cardiac disease, what’s good for adults may also be good for kids.

In a study of 12…

7. Atrial Flutter
Atrial flutter is less common than fibrillation. It occurs most often in patients with COPD but may be seen also in those with rheumatic or coronary heart disease, congestive heart…

6. Atrial Fibrillation

Atrial fibrillation is the commonest chronic arrhythmia, with an incidence and prevalence that rise with age, so that it affects nearly 10% of individuals over age 80. It occurs in rheumatic…

A. Recurrent Paroxysmal Atrial Fibrillation
It is now well established that patients with recurrent paroxysmal atrial fibrillation are at similar stroke risk as those who are in atrial fibrillation chronically.…

5. Supraventricular Tachycardias Due to Accessory Atrioventricular Pathways (Preexcitation Syndromes)

Pathophysiology & Clinical Findings

Accessory pathways between the atria and the ventricle which avoid the conduction delay of the atrioventricular…

1. Sinus Arrhythmia, Bradycardia, & Tachycardia

Sinus arrhythmia is a cyclic increase in normal heart rate with inspiration and decrease with expiration. It results from reflex changes in vagal influence on the normal pacemaker and…