{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,28]],"date-time":"2026-10-28T09:30:24Z","timestamp":1793179824813,"version":"4.5.0"},"reference-count":44,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,2,1]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>The endoscopic endonasal approach (EEA) has evolved into a mainstay of skull base surgery over the last two decades, but publications examining the intraoperative and perioperative complications of this technique remain scarce. A prior landmark series of 800 patients reported complications during the first era of EEA (1998\u20132007), parallel to the development of many now-routine techniques and technologies. The authors examined a single-institution series of more than 1000 consecutive EEA neurosurgical procedures performed since 2010, to elucidate the safety and risk factors associated with surgical and postoperative complications in this modern era.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>After obtaining institutional review board approval, the authors retrospectively reviewed intraoperative and postoperative complications and their outcomes in patients who underwent EEA between July 2010 and June 2018 at a single institution.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>The authors identified 1002 EEA operations that met the inclusion criteria. Pituitary adenoma was the most common pathology (n = 392 [39%]), followed by meningioma (n = 109 [11%]). No patients died intraoperatively. Two (0.2%) patients had an intraoperative carotid artery injury: 1 had no neurological sequelae, and 1 had permanent hemiplegia. Sixty-one (6.1%) cases of postoperative cerebrospinal fluid leak occurred, of which 45 occurred during the original surgical hospitalization. Transient postoperative sodium dysregulation was noted after 87 (8.7%) operations. Six (0.6%) patients were treated for meningitis, and 1 (0.1%) patient died of a fungal skull base infection. Three (0.3%) patients died of medical complications, thereby yielding a perioperative 90-day mortality rate of 0.4% (4 deaths). High-grade (Clavien-Dindo grade III\u2013V) complications were identified after 103 (10%) EEA procedures, and multivariate analysis was performed to determine the associations between factors and these more serious complications. Extradural EEA was significantly associated with decreased rates of these high-grade complications (OR [95% CI] 0.323 [0.153\u20130.698], p = 0.0039), whereas meningioma pathology (OR [95% CI] 2.39 [1.30\u20134.40], p = 0.0053), expanded-approach intradural surgery (OR [95% CI] 2.54 [1.46\u20134.42], p = 0.0009), and chordoma pathology (OR [95% CI] 9.31 [3.87\u201322.4], p &lt; 0.0001) were independently associated with significantly increased rates of high-grade complications.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>The authors have reported a large 1002-operation cohort of EEA procedures and associated complications. Modern EEA surgery for skull base pathologies has an acceptable safety profile with low morbidity and mortality rates. Nevertheless, significant intraoperative and postoperative complications were correlated with complex intradural procedures and meningioma and chordoma pathologies.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2020.11.jns202494","type":"journal-article","created":{"date-parts":[[2021,8,6]],"date-time":"2021-08-06T03:58:35Z","timestamp":1628222315000},"page":"393-404","source":"Crossref","is-referenced-by-count":42,"title":["Complications after 1002 endoscopic endonasal approach procedures at a single center: lessons learned, 2010\u20132018"],"prefix":"10.3171","volume":"136","author":[{"given":"Douglas A.","family":"Hardesty","sequence":"first","affiliation":[{"name":"Departments of Neurosurgery and"},{"name":"Otolaryngology\u2013Head and Neck Surgery, Wexner Medical Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alaa","family":"Montaser","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"},{"name":"Department of Neurosurgery, Ain Shams University, Cairo, Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Kreatsoulas","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Varun S.","family":"Shah","sequence":"additional","affiliation":[{"name":"The Ohio State University, Columbus, Ohio; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyle K.","family":"VanKoevering","sequence":"additional","affiliation":[{"name":"Otolaryngology\u2013Head and Neck Surgery, Wexner Medical Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bradley A.","family":"Otto","sequence":"additional","affiliation":[{"name":"Otolaryngology\u2013Head and Neck Surgery, Wexner Medical Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ricardo L.","family":"Carrau","sequence":"additional","affiliation":[{"name":"Otolaryngology\u2013Head and Neck Surgery, Wexner Medical Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel M.","family":"Prevedello","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"},{"name":"Otolaryngology\u2013Head and Neck Surgery, Wexner Medical Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"3","key":"b1","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"861","DOI":"10.3171\/2017.11.JNS172141","article-title":"Evolution of the graded repair of CSF leaks and skull base defects in endonasal endoscopic tumor surgery: trends in repair failure and meningitis rates in 509 patients","volume":"130","author":"Conger A","year":"2018","unstructured":"Conger A, Zhao F, Wang X,  Evolution of the graded repair of CSF leaks and skull base defects in endonasal endoscopic tumor surgery: trends in repair failure and meningitis rates in 509 patients. 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