Original Article from The New England Journal of Medicine — Bronchiectasis: Treatment and Prevention. Original Article from The New England Journal of Medicine — The Pathogenesis of Bronchiectasis. 4 days ago Read the latest NEJM Case Records of the Massachussetts General Bronchiectasis may develop in patients with a history of recurrent.

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Mutations in CFTR disrupt sodium absorption, chloride secretion, and water transport, leading to the development of viscous mucus that adheres to the airway and impairs bacterial bronchiectasiz. Many lung infections can result in the development of bronchiectasis, including those caused by Mycobacterium tuberculosis and Bordetella pertussis. Request to Bronchiectais has invited you to join this group.

The CFTR protein forms a chloride channel that is critical to efficient mucus transport. What are some of the causes of bronchiectasis?

Describe features of primary broncjiectasis dyskinesia. Therefore, nodal ciliary dysfunction can produce dextrocardia, situs inversus totalis, and situs ambiguus. Show or Hide the password you are typing.


The primary defect that is caused by the Phedel mutation is that the CFTR protein is synthesized but misfolded, which keeps it from reaching the cell surface.

Primary ciliary dyskinesia is a congenital, autosomal recessive disorder that is characterized by immotile or dyskinetic cilia. The DH mutation is considered to be a partial-function mutation that results in diminished ion transport.

A Woman with Recurrent Sinusitis, Cough, and Bronchiectasis

In some people, inhalation of Aspergillus fumigatus provokes a brisk allergic response that is characterized by eosinophilia and a high level of IgE antibodies. Create your account Back to Social Login. We will not share your email with anyone. This type of mutation is the target of the drug ivacaftor, which restores partial ion transport.

A Woman with Recurrent Sinusitis, Cough, and Bronchiectasis | NEJM Resident

Primary ciliary dyskinesia can also cause left—right asymmetry. Log in via Email.

Bronchiectasis is characterized by irreversible damage of the airways that results in dilatation. In addition to impaired airway clearance, fertility problems can arise in males as a result of impaired spermatozoa motility and in females as a result of impaired ciliary function in the oviduct.

Cystic fibrosis is a recessive genetic disease that is caused by mutations in both alleles of brronchiectasis CFTR gene, which encodes the cystic fibrosis transmembrane conductance regulator CFTR.


With the administration of these treatments at cystic fibrosis—specific treatment centers, median survival has increased from There are close to recognized CFTR mutations, and each one confers a different degree of diminished chloride ion transport.

Inthe qualifying mutations for the administration of ivacaftor were expanded to include DH. Back to Social Login. A hypersensitivity response, known as allergic bronchopulmonary aspergillosis, may ensue, leading to a cycle of bronchial inflammation, mucoid impaction, and bronchial obstruction that results in bronchiectasis.

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This is the target of action of the drugs lumacaftor and tezacaftor. Patients with immunodeficiency syndromes are at high risk for the development of bronchiectasis. Bronchiectasis may develop in patients with a history of recurrent pneumonia, particularly those with chronic aspiration.