Anatomy of the sphenopalatine artery and its implications for transnasal neurosurgery

• DOI: 10.4193/rhin17.181
• Publication Date: 2018-08-16T14:16:41Z
• Authors: M. Eordogh; A. Grimm; I. Gawish; L. Patonay; R. Reisch; H.R. Briner; G. Baksa
• Keywords: Foramen; Cadaveric spasm; Meatus

The knowledge of sinonasal vasculature is inevitable in transnasal neurosurgery. We performed an anatomical study on the sphenopalatine artery from perspective skull base procedures.To analyse landmarks artery, arterial corrosion casts (26 head halves) underwent endoscopic phantom surgery. Furthermore, we microsurgical dissection formaldehyde-fixated cadavers with perfusion (14 as well studied Cone Beam CT-scans anonymised patients and (115 sides).In our cadaveric material, foramen located at transition superior middle nasal meatus (95.0%) or (5.0%). It main entry point branches into cavity. In most cases (25.0%), this level there are 2 superiorly 1 vessel inferiorly to ethmoid crest. An average 2.4 vessels leave crest, 97.8% them belong arterys posterior septal branches. 2.1 crest; all lateral There no a single plane foramen. describe triangular bony structure bordering anteriorly which built up by palatine bone maxilla. According radiographic studies, prominence surrounded cell (57.4%), sphenoid sinus (41.7%) orbit (0.9%) varying contribution meatus; inferolaterally maxillary (98.3%) pterygopalatine infratemporal fossa (1.7%) inferomedially meatus. medial vertex triangle corresponds crest bone. surgery, appear triangle's inferomedial edge, emerge its edge.The landmark find differentiate identify sinus.