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Neurosurgeons at Mayo Clinic Health System are trained in the diagnosis and treatment of the entire nervous system, including your brain, spinal cord and spinal column, as well as the nerves throughou...

Heart failure, sometimes known as congestive heart failure, occurs when your heart muscle doesn't pump blood as well as it should. Certain conditions, such as narrowed arteries or high blood pressure,...

Congenital heart disease is one or more problems with the heart's structure that you're born with. Congenital heart disease, also called congenital heart defect, can change the way blood flows through...

Coronary artery disease develops when the major blood vessels ― the coronary arteries ― that supply your heart with blood, oxygen and nutrients become damaged or diseased. Cholesterol-containing depos...

Heart rhythm problems, or heart arrhythmias, occur when the electrical impulses that coordinate your heartbeats don't work properly, causing your heart to beat too fast, too slow or irregularly. Hear...

An atrial septal defect (ASD) is a heart condition that a person is born with where there is a hole between the upper chambers of the heart. This hole leads to an increased amount of blood flowing thr...

A patent foramen ovale (PFO) is a hole in the heart that remains open after birth. It’s a small opening between the atria, the heart's upper chambers. Normally, the foramen ovale closes during i...

Peripheral artery disease, also called peripheral arterial disease, is a common circulatory problem where narrowed arteries reduce blood flow to your limbs. When you develop peripheral artery disease...

In heart valve disease, also known as valvular heart disease, one or more of the valves in your heart doesn't work properly. Your heart has four valves that keep blood flowing in the correct directio...

Aortic valve disease is a condition where the valve between the main pumping chamber of your heart and the main artery to your body, the aorta, doesn't work properly. Aortic valve disease may be a con...