Cystic Fibrosis in Children Paediatrics Clinical Features Diagnosis Management and Treatment

⚡ 20 questions 📅 2026-03-09 17:06:09

Cystic fibrosis in paediatrics is a serious autosomal recessive genetic disorder caused by mutations in the CFTR gene, leading to abnormal chloride transport and production of thick, sticky mucus affecting multiple organs. This condition primarily involves the lungs, pancreas, liver, and gastrointestinal tract and is one of the most important inherited diseases encountered in paediatric medicine. Children with cystic fibrosis often present with recurrent respiratory infections, chronic cough, bronchiectasis, failure to thrive, pancreatic insufficiency, malabsorption, steatorrhea, and complications such as meconium ileus in newborns.

Early diagnosis is crucial and is commonly achieved through newborn screening, sweat chloride testing, and genetic testing for CFTR mutations. Management of cystic fibrosis in children focuses on improving lung function, preventing infections, maintaining adequate nutrition, and addressing complications. Treatment includes airway clearance therapy, inhaled medications such as dornase alfa and hypertonic saline, long-term antibiotics like azithromycin or tobramycin for chronic infections, pancreatic enzyme replacement therapy, fat-soluble vitamin supplementation, and advanced CFTR modulator therapies such as ivacaftor and combination therapies.

With early diagnosis and modern treatments, including targeted CFTR modulators, the prognosis of children with cystic fibrosis has significantly improved, allowing many patients to survive into adulthood. Understanding the pathophysiology, clinical manifestations, diagnostic criteria, and multidisciplinary management strategies is essential for healthcare professionals involved in paediatric care.

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Frequently Asked Questions

❓ What is cystic fibrosis in children?

Cystic fibrosis is a genetic autosomal recessive disorder caused by mutations in the CFTR gene that leads to thick, sticky mucus affecting the lungs, pancreas, intestines, liver, and other organs. In children it commonly presents with recurrent lung infections, chronic cough, poor weight gain, and malabsorption.

❓ What causes cystic fibrosis in paediatric patients?

Cystic fibrosis is caused by mutations in the CFTR gene located on chromosome 7. The mutation leads to defective chloride ion transport across epithelial cells, resulting in thick mucus secretions in the respiratory and gastrointestinal systems.

❓ How is cystic fibrosis inherited?

Cystic fibrosis follows an autosomal recessive inheritance pattern. A child develops the disease only if both parents carry and pass on the defective CFTR gene.

❓ What are the common symptoms of cystic fibrosis in children?

Common symptoms include persistent cough, recurrent chest infections, wheezing, failure to thrive, bulky greasy stools, chronic sinusitis, nasal polyps, and digital clubbing.

❓ What is the most common gastrointestinal manifestation of cystic fibrosis in newborns?

The most common gastrointestinal manifestation in newborns is meconium ileus, which occurs due to thick intestinal secretions causing intestinal obstruction.

❓ How is cystic fibrosis diagnosed in children?

Diagnosis is confirmed with a sweat chloride test showing elevated chloride levels. Additional tests include newborn screening using immunoreactive trypsinogen levels and genetic testing for CFTR mutations.

❓ Why do children with cystic fibrosis develop pancreatic insufficiency?

Thick mucus blocks pancreatic ducts, preventing digestive enzymes from reaching the intestine. This leads to malabsorption, steatorrhea, and poor growth.

❓ What are the most common respiratory pathogens in cystic fibrosis?

Common pathogens include Staphylococcus aureus, Pseudomonas aeruginosa, and Burkholderia cepacia.

❓ What treatments are used to manage cystic fibrosis in children?

Management includes airway clearance therapy, inhaled medications such as dornase alfa and hypertonic saline, antibiotics for infections, pancreatic enzyme replacement therapy, nutritional support, and CFTR modulator drugs.

❓ What is cystic fibrosis related diabetes?

Cystic fibrosis related diabetes is a form of diabetes that occurs due to progressive pancreatic damage in patients with cystic fibrosis, affecting insulin production.

❓ Why do patients with cystic fibrosis have salty sweat?

Defective CFTR chloride channels in sweat glands prevent reabsorption of chloride and sodium, leading to high salt concentrations in sweat.

❓ What is the role of CFTR modulator therapy in cystic fibrosis?

CFTR modulators such as ivacaftor and combination therapies improve the function of defective CFTR protein, helping restore chloride transport and improving lung function.

❓ What complications can occur in children with cystic fibrosis?

Complications include bronchiectasis, respiratory failure, pancreatic insufficiency, distal intestinal obstruction syndrome, liver disease, cystic fibrosis related diabetes, and infertility.

❓ What is the most serious cause of death in cystic fibrosis patients?

The most common cause of death is progressive respiratory failure due to chronic lung infections and bronchiectasis.

❓ Can cystic fibrosis be cured?

Currently there is no permanent cure for cystic fibrosis, but modern therapies including CFTR modulators, antibiotics, and lung transplantation significantly improve survival and quality of life.