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  • Title: Anterior skull base cerebrospinal fluid fistulas in Puerto Rico: treatment and outcome.
    Author: Alameda YA, Busquets JM, Portela JC.
    Journal: Bol Asoc Med P R; 2009; 101(2):29-33. PubMed ID: 19954098.
    Abstract:
    BACKGROUND: The surgical management of anterior skull base cerebrospinal fluid (CSF) fistulas has evolved throughout the last decade. Endonasal endoscopic surgery of the anterior skull base has become the standard procedure for the repair of most these fistulas. OBJECTIVES: To describe the presenting symptoms, etiology, treatment, and long-term outcomes of patients with anterior skull base CSF fistulas treated endoscopically at our institution. MATERIAL/ METHODS: Retrospective analysis of 25 patients with CSF fistulas treated endoscopically at the University of Puerto Rico Hospital from November 2004 to August 2008. RESULT: The etiology was spontaneous leak in 10 patients, menigoencephalocele in 7 patients, previous sinus surgery in one patient, and trauma in one patient. The most common location of leak was the cribiform plate, followed by the ethmoid roof. An overlay technique was used for repair in 61% of the procedures versus 39% for the underlay technique. The mean follow up was 23 months. Our overall initial rate of closure was 94% with 100% after a second procedure. CONCLUSIONS: Endoscopic repair of anterior skull base CSF fistulas has a high success rate and lower morbidity and mortality when compared with open approaches.
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