Is Noonan syndrome life threatening

While Noonan syndrome is not life-threatening, if you have the condition you may experience associated illnesses, including heart disease, bleeding disorders, and some types of cancer at some point during your lifetime.

Can Noonan cause death?

Cause of deathAge (years)Ischaemic heart disease61

How bad is Noonan syndrome?

Noonan syndrome can range from being very mild to severe and life-threatening. In many cases, the problems associated with the condition can be successfully treated at a young age or become less prominent over time.

How long can a person with Noonan syndrome live?

It is one of the most common non-chromosomal disorders in children with congenital heart disease, with an estimated prevalence worldwide of 1 in 1000-2500. The average age at diagnosis is nine years, and life expectancy is likely normal if serious cardiac defects are absent.

Is Noonan syndrome a disability?

Noonan syndrome is a genetic condition that typically includes heart abnormalities and characteristic facial features. About one-third of affected children have mild intellectual disability. Noonan syndrome may be inherited in up to 75 per cent of cases.

Does Noonan syndrome affect the brain?

Although cognitive impairments in adults with Noonan syndrome seem to be limited to a low‐average intelligence and slower processing speed, studies in children with Noonan syndrome have demonstrated more extensive cognitive problems.

Can Noonan syndrome be cured?

There’s no cure for Noonan syndrome, but medical care can help with almost every symptom. For example: Medicines and surgery can help heart problems. Medicines or blood transfusions can treat bleeding.

Can Noonan syndrome cause seizures?

Notably, although seizure disorder (13%) is not uncommon in patients with Noonan syndrome [14], neurological impairment in patients with mutations in the RAS/MAPK pathway could be more severe and linked to certain forms of refractory epilepsy, especially epileptic encephalopathy and infantile spasms [15–17].

Is Noonan syndrome rare?

Noonan syndrome is a rare genetic disorder. If you have it, you might have certain identifiable facial features, short height, and unusual chest shape. You may also have heart defects. It can cause a wide range of other physical and developmental symptoms that usually start at birth.

How do you get Noonan syndrome?

Noonan syndrome is caused by a genetic mutation and is acquired when a child inherits a copy of an affected gene from a parent (dominant inheritance). It can also occur as a spontaneous mutation, meaning there’s no family history involved.

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What is another name for Noonan syndrome?

Other names. Male Turner syndrome, Noonan–Ehmke syndrome, Turner-like syndrome, Ullrich–Noonan syndrome.

Can Noonan syndrome go undiagnosed?

The severity of these features can range from mild to life-threatening. Read more about the symptoms of Noonan syndrome. The condition is usually diagnosed at birth, although milder cases may go undiagnosed until a child gets older. Noonan syndrome is relatively uncommon.

What race is Noonan syndrome most common in?

Noonan syndrome (NS) is a common genetic syndrome associated with gain of function variants in genes in the Ras/MAPK pathway. The phenotype of NS has been well characterized in populations of European descent with less attention given to other groups.

Does Noonan syndrome affect the lungs?

Approximately two thirds of infants with Noonan syndrome also have heart (cardiac) abnormalities at birth (congenital heart defects). In about half of such cases, affected infants have obstruction of the normal flow of blood from the lower right chamber (ventricle) of the heart to the lungs (pulmonary stenosis).

What do kids with Noonan syndrome look like?

People with Noonan syndrome have distinctive facial features such as a deep groove in the area between the nose and mouth (philtrum ), widely spaced eyes that are usually pale blue or blue-green in color, and low-set ears that are rotated backward.

Does Noonan syndrome have mental retardation?

The cardinal features of Noonan syndrome include unusual facies (ie, hypertelorism, down-slanting eyes, webbed neck), congenital heart disease, short stature, and chest deformity. Approximately 25% of individuals with Noonan syndrome have mental retardation.

Does Noonan syndrome affect the immune system?

People with Noonan Syndrome (and all the RASopathies) have a higher risk of autoimmune diseases than the general population. When someone has a genetic disease such as Noonan Syndrome it can be very easy to dismiss symptoms as ‘part of the NS journey’.

Are there any support groups for Noonan syndrome?

Noonan Syndrome Foundation Online Support Group The NSF online support group has been set up so that families and individuals affected by Noonan syndrome have a place to turn to for support.

What are medications for Noonan syndrome?

Drug nameRatingRx/OTCView information about somatropin somatropinRateRxGeneric name: somatropin systemic Brand name: Norditropin FlexPro Drug class: growth hormones For consumers: dosage, interactions, side effectsView information about Norditropin FlexPro Norditropin FlexProRateRx

Is there a genetic test for Noonan syndrome?

You may be referred to a genetics specialist for genetic testing. In most cases, Noonan syndrome can be confirmed by a blood test for the various genetic mutations.

What does Noonan mean?

Irish (Munster): Anglicized form of Gaelic Ó hIonmhaineáin ‘descendant of Ionmhaineán’, a personal name derived from the diminutive of Ionmhain ‘beloved’, ‘dear’.

Does Noonan syndrome affect behavior?

Behavioral issues may occur, including difficulties with attention and emotional challenges. A child may appear immature compared with their peers. Decreased muscle tone may cause developmental milestones to be reached later than expected. People with Noonan syndrome report decreased muscle strength and clumsiness.

When is Noonan syndrome usually diagnosed?

A diagnosis of Noonan syndrome is usually made after a doctor observes some key signs, but this can be difficult because some features are subtle and hard to identify. Sometimes, Noonan syndrome isn’t diagnosed until adulthood, only after a person has a child who is more obviously affected by the condition.

How is Noonan inherited?

Noonan syndrome is inherited in families in an autosomal dominant pattern. This means that a person who has Noonan syndrome has one copy of an altered gene that causes the disorder. In about one-third to two-thirds of families one of the parents also has Noonan syndrome.

What is Sotos?

Sotos syndrome is a disorder characterized by a distinctive facial appearance, overgrowth in childhood, and learning disabilities or delayed development of mental and movement abilities. Characteristic facial features include a long, narrow face; a high forehead; flushed (reddened) cheeks; and a small, pointed chin.

What chromosome does Noonan syndrome affect?

LocationPhenotypeGene/Locus MIM number12q24.13Noonan syndrome 1176876