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kidshealth library

health & safety topics

Your child's health and safety is our top priority. Please search our resource library for information on health, nutrition, fitness, injury prevention and other important topics.

Heart & Blood Vessels

Long QT Syndrome

Long QT syndrome is a condition that affects the electrical system of the heart. Some kids have no symptoms, while others may feel changes in their heartbeat or feel lightheaded.

Lymphatic Malformations

A lymphatic malformation is a clump of lymph vessels that form a growing, jumbled, spongy cluster. They're unusual growths, but are not cancerous.

Marfan Syndrome

Marfan syndrome affects the body's connective tissue and can cause problems in the eyes, joints, and heart. Even though the disease has no cure, doctors can successfully treat just about all of its symptoms.

Metabolic Syndrome

Metabolic syndrome is a group of health problems that put kids at risk for heart disease and diabetes. With lifestyle changes, many kids improve their health and reduce their risk of disease.

Mitral Valve Prolapse

Mitral valve prolapse (MVP) is a very common heart condition, but it isn't a critical heart problem or a sign of other serious medical conditions.

Morquio A Syndrome

Morquio A syndrome causes growth problems and also can affect the heart and cause hearing and vision problems. Medical care and treatments can help with these problems.

Myocarditis

The muscle that makes up the heart is called the myocardium. Myocarditis is when this muscle gets inflamed (swollen).

Noonan Syndrome

Noonan syndrome is a condition that some babies are born with. It causes changes in the face and chest, and usually includes heart problems.

Patent Ductus Arteriosus (PDA)

The ductus arteriosus is a blood vessel that connects two major arteries before birth and normally closes after a baby is born. If it stays open, the result is a condition called patent ductus arteriosus (PDA).

Patent Foramen Ovale (PFO)

The foramen ovale is a normal opening between the upper two chambers of an unborn baby’s heart. It usually closes soon after the baby’s birth — when it doesn't, it's called a patent foramen ovale.