Objective: To explore surgical technique and outcomes of revision endoscopic sinus surgery (ESS) in patients with previously repaired cerebrospinal fluid (CSF) leaks. Design: A case series of 13 patients with previously repaired iatrogenic CSF leaks who underwent revision ESS for recurrent sinus disease; a review of the preoperative workup, intraoperative findings, and postoperative outcomes. Setting: Two academic medical centers. Patients: Patients were included if they had a history of previously repaired skull base defect and iatrogenic CSF leak in the vicinity of the planned revision ESS. Interventions: Revision ESS was performed in the vicinity of the previously repaired CSF leak. Dissection was carefully performed to avoid a recurrent CSF leak. Main Outcome Measures: Preoperative workup, intraoperative findings, surgical technique, and complications were reviewed. Results: The study population consisted of 7 men and 6 women. Surgical navigation was used for all cases. Intrathecal fluorescein was not used in any case. In no instances was an active preexisting CSF leak identified or a new leak created. No minor or major postoperative complications arose in any of the study patients. All patients were discharged home within 24 hours. The mean (SD) follow-up was 26.0 (16.7) months. Conclusions: Previous skull base injury with CSF leak is not a contraindication to revision ESS. Safe ESS in this setting can be performed and may be recommended to such patients with symptomatic recurrence of their sinus disease.
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