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Supplementary Material for: Nasoseptal Flap
<p>The nasoseptal flap had an important role in the development of
endoscopic endonasal surgery of the cranial base. The flap is pedicled
upon the posterior septal artery, which is a terminal branch of the
sphenopalatine artery. The reliable vascular supply promotes rapid
healing and the flap is an effective barrier for the prevention of CSF
leaks. For large skull base defects, it has dramatically decreased the
risk of a postoperative CSF leak to less than 5%. The nasoseptal flap is
a versatile flap with a wide arc of rotation that allows the flap to
reach defects from the frontal sinus to the lower clivus. This chapter
provides a comprehensive review of the nasoseptal flap. The harvesting
and reconstruction techniques, modifications of the flap and
complications are described.</p