Cerebrospinal fluid leaks: endoscopic transnasal repair
DOI:
https://doi.org/10.34631/sporl.46Keywords:
cerebrospinal fluid leak, endoscopic repairAbstract
Introduction: Cerebrospinal fluid leak (CSF) is characterized by the breakdown of all barriers that separate the subarachnoid space from the mucosa of the nasal cavity or paranasal sinus. The endoscopic transnasal techniques are nowadays a valid alternative for the repair of these anterior skull base defects. Matherial e Methods: Retrospective study considering all patients who underwent endoscopic transnasal CSF leak repair, from January 2005 to February 2012. Results: 27 CSF leaks, corresponding to 25 patients. The aetiology was spontaneous (40,8%), traumatic (37%), iatrogenic (18,5%) and tumoral (3,7%). The ethmoid was the most common site (52%), followed by the sphenoid sinus (37%) and multiple in 11% of the cases. The success rate, after the first closure attempt, was 88,9%. Conclusion: The endoscopic transnasal approach is an excellent option for the cranial base CSF leak repair. The correct location and exposure of the bone defect, and the proper placement and fixation of the graft, are of great importance for the success of this technique.
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