What are the main symptoms of Kearns-Sayre syndrome?

In addition, people with Kearns-Sayre syndrome have at least one of the following signs or symptoms: abnormalities of the electrical signals that control the heartbeat (cardiac conduction defects), problems with coordination and balance that cause unsteadiness while walking (ataxia), or abnormally high levels of …

What does Kearns-Sayre syndrome affect?

Kearns-Sayre syndrome (KSS) is a rare neuromuscular condition that impacts your eyes and other parts of your body, including your heart. It happens due to a defect in the DNA of mitochondria, which help produce most of your body’s energy. Most people with KSS develop symptoms before age 20.

What type of disorder is Kearns-Sayre syndrome?

KSS is a mitochondrial disorder that affects males and females in equal numbers. Onset is typically before the age of 20; however, symptoms may appear during infancy or adulthood. Eye abnormalities and developmental delays are often observed before the age of five.

What organelle is most affected in Kearns-Sayre syndrome?

Kearns-Sayre syndrome is caused by defects in mitochondria , which are structures within cells that us oxygen to convert the energy from food into a form that can be used by cells.

How long do people with Kearns-Sayre syndrome live?

Our findings dispute several commonly held beliefs about patients with KSS. First, the existing diagnostic criteria require that patients have symptom onset before age 20 years, and it is commonly believed that patients with KSS die in early adulthood.

How do you get Kearns-Sayre syndrome?

Disease at a Glance Kearns-Sayre syndrome is a mitochondrial DNA (mtDNA) deletion syndrome. It results from abnormalities in the DNA of mitochondria – small rod-like structures found in every cell of the body that produce the energy that drives cellular functions.

What are the symptoms of mitochondrial disease in adults?

The main symptoms of mitochondrial myopathy are muscle fatigue, weakness, and exercise intolerance. The severity of any of these symptoms varies greatly from one person to the next, even in the same family. In some individuals, weakness is most prominent in muscles that control movements of the eyes and eyelids.

Which organs are affected by mitochondrial disease?

Mitochondrial diseases can affect almost any part of the body, including the cells of the brain, nerves, muscles, kidneys, heart, liver, eyes, ears or pancreas.

What happens inside your body when you have a mitochondrial disease?

Mitochondrial disease can cause a vast array of health concerns, including fatigue, weakness, metabolic strokes, seizures, cardiomyopathy, arrhythmias, developmental or cognitive disabilities, diabetes mellitus, impairment of hearing, vision, growth, liver, gastrointestinal, or kidney function, and more.

Can mitochondrial disease start at any age?

Mitochondrial diseases can be present at birth, but can also occur at any age. Mitochondrial diseases can affect almost any part of the body, including the cells of the brain, nerves, muscles, kidneys, heart, liver, eyes, ears or pancreas.

What is mitochondrial disease symptoms in adults?

How long can you live with mitochondrial disease?

A small study in children with mitochondrial disease examined the patient records of 221 children with mitochondrial disease. Of these, 14% died three to nine years after diagnosis. Five patients lived less than three years, and three patients lived longer than nine years.

Is mitochondrial disease serious?

If a lot of Mitochondria in the body are affected, especially in important body organs, mitochondrial disease can be very serious and often fatal.

How serious is mitochondrial disease?