{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T22:44:57Z","timestamp":1775601897378,"version":"3.50.1"},"reference-count":52,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,8,1]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>Atypical intracranial meningiomas are characterized by brain invasion and faster growth than lower-grade counterparts. Surgery improves survival for patients with atypical meningiomas, and this study assesses the association between the timing of surgery and survival.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>Patients &gt; 18 years of age with intracranial atypical meningiomas resected (2004\u20132019) and cataloged in the National Cancer Database were included. Descriptive statistics of sociodemographic and clinical characteristics were generated. Kaplan-Meier survival curves for each variable were generated. Cox proportional hazards models were developed to assess the association of time between diagnosis and surgery with overall survival, while controlling for age, sex, race, ethnicity, facility type, tumor size, comorbidity, resection type, adjuvant radiotherapy, and systemic therapy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>A total of 5452 patients were included; 17.81% of the patients were between 18 and 50 years, 66.89% were between 51 and 75 years, and 15.30% were &gt; 75 years. Among the cohort, 55.98% of patients were female. The average time between diagnosis and surgery was 0.8 months; 63.33% of the patients underwent gross-total resection, 28.28% received adjuvant radiotherapy, and 0.92% received systemic therapy. Overall, 21.39% of the patients died during the study period, and the average follow-up time after surgery was 50.9 months.<\/jats:p>\n                    <jats:p>Bivariate analysis showed that the risk of patient mortality over the entire study period increased significantly for every additional month between diagnosis and surgery (hazard ratio [HR] 1.03, 95% CI 1.01\u20131.06; p = 0.01). On multivariable analysis, a longer time between diagnosis and surgery (HR 1.03, 95% CI 1.00\u20131.05; p = 0.02) remained a significant predictor of mortality after adjusting for age, sex, race, ethnicity, treatment facility type, tumor size, frailty, resection type, adjuvant radiotherapy, and systemic therapy. On subgroup analysis, delayed time to surgery was associated with increased mortality for those who received subtotal resection (HR 1.04, 95% CI 1.01\u20131.07; p = 0.01), but not for those who received gross-total resection (HR 1.02, 95% CI 0.97\u20131.06; p = 0.43). Patients who were female, Asian, treated at an academic program, and received radiotherapy were associated with significantly decreased mortality, whereas patients who were male, African American, had a tumor size &gt; 60 mm, had more comorbidities, and underwent subtotal resection experienced increased mortality.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>Additional time between diagnosis and surgery is associated with an increased risk of mortality after adjusting for confounders. The authors recommend surgery as soon as safely possible after diagnosis for patients with intracranial meningiomas with signs of atypia.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2024.11.jns241896","type":"journal-article","created":{"date-parts":[[2025,3,22]],"date-time":"2025-03-22T09:04:19Z","timestamp":1742634259000},"page":"375-383","source":"Crossref","is-referenced-by-count":1,"title":["Association of shorter time to surgery with improved overall survival for atypical intracranial meningiomas: an analysis using the National Cancer Database"],"prefix":"10.3171","volume":"143","author":[{"given":"Linda","family":"Tang","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sachiv","family":"Chakravarti","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rohan","family":"Venkatdas","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emre","family":"Derin","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A. Karim","family":"Ahmed","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Debraj","family":"Mukherjee","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"Suppl 5","key":"b1","series-title":"Neuro Oncol","first-page":"v1","article-title":"CBTRUS Statistical Report: primary brain and other central nervous system tumors diagnosed in the United States in 2012-2016","volume":"21","author":"Ostrom QT","year":"2019","unstructured":"Ostrom QT, Cioffi G, Gittleman H,  CBTRUS Statistical Report: primary brain and other central nervous system tumors diagnosed in the United States in 2012-2016. 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How time from diagnostic MRI to resection affects outcomes in newly diagnosed glioblastoma","volume":"140","author":"Young JS","year":"2023","unstructured":"Young JS, Al-Adli NN, Muster R,  Does waiting for surgery matter? How time from diagnostic MRI to resection affects outcomes in newly diagnosed glioblastoma. J Neurosurg. 2023;140(1):80\u201393."},{"key":"b10","article-title":"About the National Cancer Database","unstructured":"About the National Cancer Database. American College of Surgeons.Accessed December 10, 2024. https:\/\/www.facs.org\/quality-programs\/cancer-programs\/national-cancer-database\/about\/"},{"key":"b11","series-title":"World Health Organization;","article-title":"International Classification of Diseases for Oncology","author":"Frtiz A","year":"2013","unstructured":"Frtiz A, Percy C, Jack A, , eds. International Classification of Diseases for Oncology. 3rd ed. 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