SynthesisNeuroradiology2023
Prevalence of anatomical variations at the suboccipital (V3) segment of the vertebral artery: a systematic review.
Synthesis in Neuroradiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.
- Prevalence of suboccipital and intradural vertebral artery variants: a systematic review with meta-analysis.Neuroradiology · 2025Pooled it
- Atlanto-occipital assimilation with arcuate foramen, vertebral artery hypoplasia, and elongated styloid process: a case report.Anatomical science international · 2026Article
- Microanatomy and spatial analysis of the muscular triangle involving the vertebral artery's third segment.Surgical and radiologic anatomy : SRA · 2026Article
- Modified classification system of high-riding vertebral artery for the C2 screw placement strategy: a large-scale, cross-sectional study.Scientific reports · 2025Article
- Demographics with purpose: a scientific necessity, not a social stigma.Surgical and radiologic anatomy : SRA · 2025Article
- Morphology and morphometry of the vertebrobasilar system intracranial segment: a computed tomography angiography study.Anatomy & cell biology · 2025Article
- V3 segment of the right vertebral artery taking an anomalous posterosuperior course and penetrating occipital bone (wall of the jugular foramen) diagnosed by magnetic resonance angiography.Surgical and radiologic anatomy : SRA · 2024Article
- A Prevalence Anatomic-Imaging Study of the Posterior Inferior Cerebellar Artery's Origin.Medicina (Kaunas, Lithuania) · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectiveA recent meta-analysis on the incidence of iatrogenic injury to the VA has revealed that patients with variant anatomy are more prone to iatrogenic injury. Therefore, this review is designed to investigate the incidence of variations in the suboccipital component of the vertebral artery in different population groups according to the available literature.
methodsThis systematic review was conducted according to PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). The review is based on a comprehensive and extensive search of PubMed, Google Scholar, and ResearchGate. The following search terms were used: "vertebral artery" AND "suboccipital segment" AND "anomalies/anatomical variations of the V3 segment." Reference lists of all extracted articles were also extensively searched for references to any further relevant publications.
resultsA total of 17 papers met the inclusion criteria. The 17 studies corresponded to a total of 10,820 patients. A persistent first intersegmental artery was registered in 1.8% (197 out of 10,820) of the patients. Extradural PICA origin was observed in 1.6% (175 out of 10,820) of the patients. Fenestration was detected in 0.7% (72 out of 10,820) of the patients.
conclusionThe authors summarize the incidence of vascular variation at the suboccipital segment of the VA in different population groups across the Asian, European, American, and African continents. Awareness of the extent of possible anatomical variation will help interpret radiographs, which will enhance the identification of vascular pathologies and reduce the risk of iatrogenic injury.
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