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We sought out to systematically pool the prevalence of basilar artery termination variations and describe their neurointerventional implications with an illustrative case.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We conducted a systematic review and meta-analysis of human basilar artery termination patterns in accordance with PRISMA guidelines. PubMed, Ovid MEDLINE, Web of Science, and Scopus were systematically searched. A risk of bias assessment was performed using the JBI critical appraisal tool. A meta-analysis of proportions was performed in R using random-effects models. Heterogeneity was assessed, and pre-specified subgroup analyses were conducted based on study type (deceased donor vs. imaging). We also present a case of basilar artery non-furcation identified during a dissection.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>From 8469 initial records, 31 articles were eligible for quantitative analysis. The classic bifurcation pattern was most common, with a pooled prevalence of 85.94% [95% CI 56.65\u201396.62%]. The estimated pooled prevalences for variations were: non-furcation 8.95% [95% CI 6.20\u201312.74%], trifurcation 7.05% [95% CI 3.56\u201313.50%], quadrifurcation 5.30% [95% CI 2.16\u201312.45%], and pentafurcation 2.92% [95% CI 1.08\u20137.67%]. Hexafurcation was reported in a single study (0.87%). Imaging studies generally reported higher prevalence for variations compared to deceased donor cohorts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>A significant proportion (14% of the population) possess variations, with non-furcation and trifurcation being most common. An understanding of these anatomical variations, as highlighted by our review and case presentation, is critical for clinical practice in neuroradiology and neurosurgery.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00276-026-03927-6","type":"journal-article","created":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T11:44:04Z","timestamp":1782992644000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Anatomic variations in basilar artery termination: a systematic review and meta-analysis with presentation of an illustrative case"],"prefix":"10.1007","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3960-6029","authenticated-orcid":false,"given":"Deepan","family":"Jayapala","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anish","family":"Narayan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5725-8235","authenticated-orcid":false,"given":"Sameera","family":"Wijayawardhana","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raquel","family":"Villar-Puchades","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frederick","family":"Mariajoseph","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David G.","family":"Gonsalvez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4641-5642","authenticated-orcid":false,"given":"Yasith","family":"Mathangasinghe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,7,2]]},"reference":[{"key":"3927_CR1","unstructured":"Adigun OO, Reddy V, Sevensma KE (2024) Anatomy, head and neck: basilar artery. 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