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Cystic Fibrosis Sinusitis.

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    Cystic fibrosis (CF) causes chronic rhino-sinusitis (CRS) due to impaired ion transport. Novel therapies targeting CF

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    Area of Science:

    • Medical Genetics
    • Otolaryngology
    • Pulmonology

    Background:

    • Cystic fibrosis (CF) is an autosomal recessive disorder caused by CF transmembrane conductance regulator (CFTR) gene mutations.
    • CF leads to impaired ion transport, resulting in viscous mucus and chronic sinonasal inflammation/infection in nearly all patients.
    • CF-related chronic rhino-sinusitis (CRS) presents with symptoms like anosmia, facial pain, and nasal obstruction, alongside characteristic endoscopic and CT findings.

    Purpose of the Study:

    • To review the pathophysiology, clinical presentation, and current management of CRS in CF patients.
    • To highlight the typical sinonasal manifestations observed in CF.
    • To discuss emerging therapies targeting the underlying CFTR defect for potential reversal and prevention of CF sinus disease.

    Main Methods:

    • Literature review of CF pathophysiology and sinonasal manifestations.
    • Summary of current treatment modalities for CF-related CRS.
    • Overview of promising novel therapeutic approaches.

    Main Results:

    • CF patients invariably develop CRS with distinct sinonasal features, including hypoplasia, opacification, and specific bony changes on CT.
    • Current treatments involve saline, steroids, antibiotics, and surgery, addressing symptoms rather than the root cause.
    • Emerging therapies targeting the primary CFTR defect show promise for disease reversal and prevention.

    Conclusions:

    • CF-related CRS is a significant complication with characteristic sinonasal pathology.
    • While current treatments manage symptoms, novel therapies offer hope for addressing the underlying genetic defect.
    • Future research focusing on CFTR-targeted treatments may revolutionize the management and prevention of CRS in cystic fibrosis.