A type of primary ciliary dyskinesia that negatively affects the cilia (mucus-clearing structures in the lungs) from functioning properly is called Kartagener syndrome. Some people with this syndrome may also have certain organs that are a mirror image of normal organ placement in their bodies, which often leads to frequent sinus infections and bronchiectasis.
In other words, Kartagener syndrome is a congenital (present at birth) disorder that causes the cilia in the lungs to fail to function properly. It may also cause infertility in some men. In most cases, this condition is diagnosed at birth or during childhood.
What Are The Symptoms of Kartagener Syndrome?
People who develop this syndrome usually experience the following symptoms. These include:
- Chronic (long-term) wet cough
- Neonatal respiratory distress
- Recurrent lung infections
- Dyspnea (shortness of breath)
- Anosmia (reduced sense of smell)
- Otitis media
- Runny nose
If any of the previous symptoms occur in your child, contact your healthcare professional immediately. Otherwise, it may lead to unpleasant outcomes.
Causes
This is a genetic disorder that happens due to a mutation in certain genes. In normal circumstances, these genes are responsible for the proper development and function of the cilia. Usually, the abnormal genes that cause this syndrome are inherited from biological parents. However, the syndrome occurs only when you get the mutated gene from both parents. Furthermore, if your parents have the abnormal gene, they do not necessarily develop Kartagener syndrome.
What Are The Potential Complications of Kartagener Syndrome?
People who develop this syndrome may also experience some complications, especially if the condition is poorly managed. Check some examples below:
- Bronchiectasis – This is a condition that causes permanent widening of the lung airways due to inflammation and trapped mucus.
- Recurrent pneumonia – This complication often occurs due to frequent and severe lung infections.
- Chronic respiratory failure – Usually, people develop this complication over time due to a gradual decline in lung function, which significantly reduces oxygen levels in the blood.
- Neonatal distress
- Long-term otitis media (middle ear infection)
- Conductive hearing loss – It often occurs due to fluid buildup and ear infections.
- Male infertility
- Decreased female fertility
- Headaches
- Hydrocephalus (fluid buildup in the brain)
- ARDS (acute respiratory distress syndrome)
- Speech delays
The previous list does not contain a complete list of Kartagener syndrome complications. In any case, healthcare professionals may recommend some options to reduce the risk or even prevent them. In addition, there is no sure way to prevent this syndrome because doctors do not fully understand what exactly causes it.
Diagnosis
Most of the time, doctors diagnose this syndrome when they detect primary ciliary dyskinesia and reversed organs in the body. However, to confirm or rule out this condition, they will perform the following tests. Examples include:
- Imaging tests – These tests are used to get detailed images of different structures and organs in the body. Physicians often perform ultrasounds, X-rays, or CT (computerized tomography) scans.
- Throat, nose, and ear examinations – Your doctor may refer you to an otolaryngologist (ENT) for further testing.
- Pulmonary function tests – Doctors often perform these tests to check the child’s lung function.
- Genetic testing – This test requires a blood sample to check for the abnormal genes that are often present in people with Kartagener syndrome.
- Nasal nitric oxide testing – This is a specific test that involves a small device to measure the nitric oxide levels.
- Electron microscopy – During this procedure, doctors will take a small sample of tissue from the child’s nose for testing. It helps determine how well the cilia work and if there are any structural problems.
Treatment
Unfortunately, there is no way to cure this condition. That’s why the treatment goal is to ease the symptoms, prevent serious complications, and improve your quality of life. Check below some options often recommended by doctors for people with this syndrome:
- Airway clearance techniques (such as chest physiotherapy)
- Vaccines
- Oxygen therapy
- Antibiotics – This group of medicines is used to treat and prevent bacterial infections.
- Lung transplant – This treatment is usually recommended for people with severe Kartagener syndrome and respiratory problems.
It is very important to visit a doctor if you notice your child has a chronic cough or runny nose, or frequent infections. For more details, discuss it with your physician.
Frequently Asked Questions
Is Kartagener syndrome the same as primary ciliary dyskinesia (PCD)?
No. Kartagener syndrome is a subtype of primary ciliary dyskinesia (PCD). People with Kartagener syndrome have PCD along with situs inversus (mirror-image positioning of internal organs). However, not everyone with PCD has reversed organ placement.
How common is Kartagener syndrome?
Kartagener syndrome is a rare genetic disorder. Primary ciliary dyskinesia affects approximately 1 in 10,000 to 20,000 people, and about 50% of those with PCD have Kartagener syndrome.
Can Kartagener syndrome be diagnosed before birth?
Routine prenatal testing does not usually detect Kartagener syndrome. However, if there is a known family history and the disease-causing genetic mutations have been identified, prenatal or preimplantation genetic testing may be possible.
Can children with Kartagener syndrome live a normal life?
Many children with Kartagener syndrome can have active and productive lives with early diagnosis, regular medical follow-up, airway clearance therapy, prompt treatment of infections, and healthy lifestyle habits. Early management helps preserve lung function and reduce complications.
Does Kartagener syndrome affect the heart?
The syndrome itself does not usually cause heart disease, but many people have situs inversus, meaning the heart is located on the right side of the chest (dextrocardia). In some cases, congenital heart defects may also be present.
Can women with Kartagener syndrome become pregnant?
Yes. Although some women may experience reduced fertility because of abnormal cilia in the fallopian tubes, many are still able to conceive naturally or with the help of fertility treatments.
What lifestyle changes can help manage Kartagener syndrome?
People with Kartagener syndrome should avoid smoking and secondhand smoke, stay physically active, keep up with recommended vaccinations, practice good hand hygiene, perform airway clearance exercises as instructed, and attend regular medical checkups.
Should siblings of a child with Kartagener syndrome be tested?
Since Kartagener syndrome is an inherited genetic disorder, healthcare providers may recommend evaluating siblings, especially if they have chronic respiratory symptoms, recurrent ear infections, or unexplained sinus problems. Genetic counseling may also be helpful for families.
When should someone with Kartagener syndrome seek immediate medical care?
Immediate medical attention is recommended if they develop severe breathing problems, high fever, chest pain, bluish lips or fingertips, coughing up significant amounts of blood, or signs of severe pneumonia or respiratory distress.
Can Kartagener syndrome be prevented?
There is currently no way to prevent Kartagener syndrome because it is an inherited genetic condition. However, genetic counseling can help prospective parents understand their risk of having a child with the disorder if there is a family history of primary ciliary dyskinesia or Kartagener syndrome. If you have additional questions, ask your physician.
