Evidence map›Paper›PMID 33389200›Full record

ReviewEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2021

Rotational vertebral artery occlusion ("bow hunter syndrome").

Ronald Schulz, Rodrigo Donoso, Karen Weissman

Abstract readCase ReportsReview
PubMed Publisher
In one paragraph

Review in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.2field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
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  4. Atlantoaxial Dislocation Presenting with Dizziness.Diagnostics (Basel, Switzerland) · 2026
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  11. Review
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  13. Transient ischemic attack and minor stroke as "surgeons affairs": a narrative review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    Review
  14. Article
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  16. Article
  17. Article
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  19. "Don't call me from the left side…": ischemic stroke in a patient with uncommon vertebral artery dissection.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Article
  20. Letter to the Editor concerning "Rotational vertebral artery occlusion ('bow hunter syndrome')" by Schulz R, Donoso R, Weissman K (Eur Spine J. 2021 Jan 2. doi:10.1007/s00586-020-06, 680-5).European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Ronald SchulzEquipo de Cirugía de Columna Clínica Redsalud Vitacura Y Clínica Redsalud Providencia, Universidad de Chile, Santiago, Chile. schulzibaceta@gmail.com.ORCID 0000-0003-1580-7651
Rodrigo DonosoEquipo de Cirugía de Columna Clínica Redsalud Vitacura Y Clínica Redsalud Providencia, Universidad de Chile, Santiago, Chile.
Karen WeissmanEquipo de Cirugía de Columna Clínica Redsalud Vitacura Y Clínica Redsalud Providencia, Universidad de Chile, Santiago, Chile.
University of Chile · CLClínica MEDS (Chile) · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo review the literature, analyze and discuss diagnostic and treatment options for the Bowhunter Syndrome. A clinical case of idiopathic rotatory C1-C2 subluxation causing dynamic vertebral artery occlusion is presented.

methodsLiterature review between 1960 and 2019, discussion of diagnostic methods and treatment options. Description of diagnostic and treatment methods in the aforementioned case.

resultsWe present a patient with dynamic left vertebral artery occlusion associated with idiopathic rotatory C1-C2 subluxation. A dynamic Angio-CT showed rotatory C1-C2 subluxation with significant flow reduction at the left vertebral artery at the exit of the C2 transverse foramen until the V3 segment when the head rotated towards the right. Due to clinical and radiological worsening in the following months, posterior C1-C2 arthrodesis was performed, with the disappearance of the symptoms. There are 193 cases reported with dynamic vertebral artery occlusion, but in only two, the etiology was primary rotational atlantoaxial instability. The most prevalent etiology was degenerative.

conclusionRotatory vertebral artery occlusion is a rare condition presented mostly in adults, aged 50-70 years. Vertebrobasilar insufficiency is triggered by the rotation of the head to the contralateral side of the dominant vertebral artery. Dynamic subtraction angiography is considered the diagnostic gold-standard method, but dynamic Angio-CT scan, Angio-MRI, or Doppler ultrasonography are less invasive options. The treatment options are conservative or surgical. Endovascular surgery is another option in specific cases.

Indexed as

Joint DislocationsMucopolysaccharidosis IIVertebrobasilar InsufficiencyAdultHumansRotationVertebral ArteryCervical arthrodesisCervical fusionCervical instabilityVertebral artery occlusionVertebrobasilar insufficiency

Identifiers

PMID33389200
OpenAlexW3119743002

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.