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Cystic fibrosis is the major cause of severe lung disease in children, occurring in over one thousand new cases each year.

How Do You Get Cystic Fibrosis?

Cystic Fibrosis is an inherited, chronic disease.  

It's autosomal recessive, which means that both parents need to be carriers of the defective gene in order to pass it on their children.

Even then, not all of the kids may have the actual disease.  Theoretically, if a couple of carriers had four children, one would develop the disease, two would be carriers only, and one would be completely unaffected. 

The defective gene prompts the body to create extremely thick and sticky mucus.  This mucus obstructs both the lungs and the pancreas, leading to breathing difficulties and trouble digesting food.

How is it Diagnosed?

The condition is usually diagnosed by the age of two.  Despite a healthy appetite, children have poor growth and difficulty gaining weight.  They also have very bulky stools due to their food not being well-digested.  A persistent cough is accompanied by bouts of wheezing and shortness of breath.  Parents also notice that their children's skin is very salty-tasting, a side effect of an abnormally high electrolyte concentration in their sweat.

This abnormality is the basis of the "gold standard" for cystic fibrosis testing: the sweat test

It's the most common test used for diagnosis.

A small electrode is placed on the arm along with a collection device.  The area is wrapped in a dressing, then the electrode is used to stimulate the sweat glands.  The sweat accumulates in the collection device and then the chloride level is tested.  The higher the chloride the level, the more likely it is that the person has cystic fibrosis, with 60 mmol/L being the level at which a diagnosis is certain.

Genetic testing is also used, but mainly when the sweat test results are borderline or unclear.  This is because there are over 1000 genetic mutations that can cause cystic fibrosis and most labs only test for the most common ones.

Can it be Cured?

No.  It's a chronic condition and, sadly, often a fatal one.  On the positive side, great strides have been taken in extending the life expectancy of people with cystic fibrosis.  

In the '50s, children with cystic fibrosis were not expected to live until school age.

Now, at least half live to their mid-30s and into their 40s.  Some live even longer, as the severity of the disease can vary greatly.

The life expectancy of those diagnosed has steadily increased over time.  Infants who are born with cystic fibrosis today may have even longer life spans thanks to new treatments that are now available.  Many younger people are pursuing careers, marrying, and starting their own families.  This was unimaginable, even a few decades ago.

Organizations, such as the Cystic Fibrosis Foundation, work to fund research into new therapies and medications.  The Cystic Fibrosis Foundation created its own specialty pharmacy to help patients get access to medication and therapy and provide support with insurance issues.  They also seek out patients with cystic fibrosis who are willing to participate in clinical trials and help advance the science of therapeutic medications and therapies.

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