Abstract
■ The etiologies of CSF fistulae include accidental trauma, iatrogenic causes, tumors, encephaloceles, and spontaneous leaks.
■ A thorough head and neck evaluation including nasal endoscopy must be performed if suspicious for a CSF leak. If able to collect rhinorrhea, the fluid should be sent for a beta-2-transferrin assay.
■ Select the appropriate imaging modality when working-up a leak. High-resolution CT demonstrates the bony skull base and its defects. If suspicious for encephalocele, MRI (magnetic resonance imaging) should be performed.
■ Consider the etiology of the leak when deciding the treatment. Conservative measures such as bed rest, stool softeners, and head of bed elevation may resolve a traumatic leak. Acetazolamide (Diamox) and lumbar drain placement are other alternatives which may negate the need for surgical repair.
■ Endoscopic repair of CSF fistulae has become the method of choice in most clinical scenarios.
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LaCour, J., Senior, B. (2009). Diagnosis, Evaluation and Management of CSF Rhinorrhea. In: Stucker, F., de Souza, C., Kenyon, G., Lian, T., Draf, W., Schick, B. (eds) Rhinology and Facial Plastic Surgery. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74380-4_42
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DOI: https://doi.org/10.1007/978-3-540-74380-4_42
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