Cystic Fibrosis (CF) is a genetic disorder that primarily affects the lungs and digestive system. It causes the body to produce thick, sticky mucus that clogs the airways and pancreatic ducts, leading to breathing problems, frequent lung infections, and difficulty absorbing nutrients. It is caused by mutations in the CFTR gene and is typically diagnosed in childhood, though milder cases can appear later in life.
Evaluation for CF is recommended if:
A newborn fails a routine CF newborn screening.
A child or adult has chronic cough, recurrent lung infections, wheezing, or poor weight gain.
There’s a family history of cystic fibrosis.
Male infertility (caused by congenital absence of the vas deferens).
Sweat chloride test (gold standard for diagnosis).
Genetic testing for CFTR mutations.
Pulmonary function tests to evaluate lung capacity.
Chest X-ray or CT scan for airway changes.
Stool/fecal elastase test to assess pancreatic enzyme production.
No special preparation is required for sweat testing; genetic testing may need a simple blood or saliva sample.
Sweat Test: Measures the salt concentration in sweat—higher than normal levels confirm CF.
Genetic Testing: Identifies specific CFTR mutations.
Pulmonary function tests: Determine lung function decline over time.
Microbiological cultures: To detect infections such as Pseudomonas or Staphylococcus aureus.
Treatment focuses on symptom control, slowing lung damage, preventing infections, and improving nutrition.
Daily airway clearance techniques (chest physiotherapy, devices to loosen mucus).
Inhaled medications (bronchodilators, hypertonic saline, dornase alfa).
Pancreatic enzyme replacement with meals.
High-calorie, nutrient-rich diet and supplements.
Regular check-ups at a CF care center.
In severe lung disease: oxygen therapy, lung transplantation.
With modern treatment, life expectancy and quality of life for CF patients have significantly improved.
If untreated or poorly managed, CF can cause:
Chronic lung infections (bronchiectasis, pneumonia).
Respiratory failure.
Malnutrition and poor growth.
Diabetes (CF-related diabetes).
Osteoporosis.
Male infertility.
Liver disease from blocked bile ducts.
Median survival has improved greatly; many patients now live into their 40s, 50s, or beyond with proper care.
CFTR modulators (like ivacaftor, lumacaftor, tezacaftor, elexacaftor) have revolutionized treatment for patients with certain gene mutations, improving lung function and slowing disease progression
Daily life with CF requires:
Consistent adherence to airway clearance and medications.
High-calorie diet with enzyme supplements.
Avoiding exposure to respiratory infections.
Exercise to strengthen lung capacity.
Psychosocial support for patients and families.
Pulmonologist: Oversees lung care.
Gastroenterologist/Nutritionist: Manages pancreatic and nutritional issues.
Respiratory therapist: Guides airway clearance and inhalation therapies.
Genetic counselor: Helps families understand inheritance risk.
CF Care Center team: Provides integrated, multidisciplinary support.
Clinical trials: New therapies, including advanced CFTR modulators and gene-editing strategies, are ongoing to target the root cause of the disease.
