{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,20]],"date-time":"2026-02-20T01:44:15Z","timestamp":1771551855324,"version":"3.50.1"},"reference-count":13,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2021,1,27]],"date-time":"2021-01-27T00:00:00Z","timestamp":1611705600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Head &amp; Neck"],"published-print":{"date-parts":[[2021,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The endoscopic endonasal trans\u2010lacerum approach (EETLA) is useful in handling skull base tumors around inferior petrous apex (IPA); however, its surgical corridor is exclusively a triangular space (supra\u2010eustachian triangle [SET]), between the internal carotid artery (ICA) and eustachian tube.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We investigated correlation between SET size and extent of resection around the IPA (lateral extent of resection [EOR]) through a retrospective analysis of 15 surgeries using EETLA.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of 15 cases (9 chordomas, 4 chondrosarcomas, and 2 meningiomas), 20 sides of IPA were affected by the tumor. When being restricted to sides with severe lateral tumor extension beyond the midpoint of petrous ICA (10 sides), the SET size was significantly broader in the group with lateral EOR of \u226590% (<jats:italic>p<\/jats:italic> value = 0.019).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The SET size was a powerful index of tumor resectability in EETLA, especially in cases with severe tumor extension. The individual anatomical variations should be considered when determining EETLA application.<\/jats:p><\/jats:sec>","DOI":"10.1002\/hed.26618","type":"journal-article","created":{"date-parts":[[2021,1,27]],"date-time":"2021-01-27T17:52:00Z","timestamp":1611769920000},"page":"1535-1544","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Anatomical variation of the internal carotid artery and its implication to the endoscopic endonasal translacerum approach"],"prefix":"10.1002","volume":"43","author":[{"given":"Toru","family":"Umehara","sequence":"first","affiliation":[{"name":"Department of Neurosurgery Kobe University Graduate School of Medicine  Kobe Hyogo Japan"},{"name":"Department of Neurosurgery Osaka University Graduate School of Medicine  Osaka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4678-2573","authenticated-orcid":false,"given":"Masaaki","family":"Taniguchi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery Kobe University Graduate School of Medicine  Kobe Hyogo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nobuyuki","family":"Akutsu","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery Hyogo Prefectural Kobe Children's Hospital  Kobe Hyogo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidehito","family":"Kimura","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery Kobe University Graduate School of Medicine  Kobe Hyogo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoichi","family":"Uozumi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery Kobe University Graduate School of Medicine  Kobe Hyogo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomoaki","family":"Nakai","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery Kobe University Graduate School of Medicine  Kobe Hyogo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haruhiko","family":"Kishima","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery Osaka University Graduate School of Medicine  Osaka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eiji","family":"Kohmura","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery Kobe University Graduate School of Medicine  Kobe Hyogo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,1,27]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1227\/01.NEU.0000338071.01241.E2"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/lary.20027"},{"key":"e_1_2_7_4_1","first-page":"146","article-title":"Endoscopic endonasal transclival approach to the jugular tubercle","volume":"71","author":"Fernandez\u2010Miranda JC","year":"2012","journal-title":"Neurosurgery"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.3171\/foc.2005.19.1.7"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1177\/0194599813520290"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.3171\/2015.1.JNS142526"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjoto.2018.04.010"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-016-4187-y"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1177\/019459987808600522"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1097\/00006123-200009001-00023"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.3171\/2017.8.JNS171308"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0030-1263126"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/hed.24999"}],"container-title":["Head &amp; 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