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  • Title: Novel harvesting technique of the nasoseptal flap in large sphenoidotomy undergoing revision with transsphenoidal approach.
    Author: Lee DH, Yoon TM, Lee JK, Jang WY, Moon KS, Jung S, Joo YE, Lim SC.
    Journal: J Craniofac Surg; 2012 Jul; 23(4):e316-8. PubMed ID: 22801166.
    Abstract:
    OBJECTIVES: Blood supply to the nasoseptal flap (NSF) can be disrupted by large sphenoidotomies in an endonasal transsphenoidal approach (TSA). In such patients with recurrent sellar tumor, an NSF can be unavailable in the sellar reconstruction. Herein, we present a new harvesting method of the NSF in revision endonasal TSA, where injury to its vascular pedicle of the NSF by a large sphenoidotomy is highly suspected. METHODS: Data for patients with large sphenoidotomy who underwent revision endonasal TSA and NSF at Chonnam National University Hwasun Hospital were collected consecutively from January 2010 to July 2011. A retrospective review of these cases was performed. RESULTS: Seven patients with a previous large sphenoidotomy requiring revision TSA underwent a new modification technique of the NSF. Pathologies included 6 pituitary adenomas and 1 craniopharyngioma. All patients had intraoperative cerebrospinal fluid (CSF) leak, necessitating multilayered sellar reconstruction, including NSF. No patients had flap necrosis, and closure of CSF leak was possible in 6 of 7 patients. Delayed CSF leak in a patient was due to the migration of the flap over the defect, and no septal complications such as septal perforation and saddle nose were noted. CONCLUSIONS: Our harvesting technique of the NSF in patients with recurrent sellar tumors is reliable for sellar reconstruction where the NSF may be unavailable because of previous large sphenoidotomy. This novel technique has an excellent success rate in flap viability and minimal additional endonasal morbidity.
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