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Cerebral bypass for symptomatic vertebrobasilar dolichoectasia.

Li-Tian Huang1, Jun Qin2, Xiao Guang Tong3

  • 1Department of Neurosurgery, The First Affiliated Hospital of Guangxi Medical University, No 6 Shuang Yong Road Nanning, Guangxi, Guangxi Province, China.

Neurosurgical Review
|January 23, 2026
PubMed
Summary

Cerebral bypass effectively treats symptomatic vertebrobasilar dolichoectasia (VBD) in complex cases. This surgical option showed significant clinical improvement in most patients, offering a viable alternative when conservative treatments fail.

Keywords:
Cerebral bypassTreatmentVertebrobasilar dolichoectasia

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Area of Science:

  • Neurosurgery
  • Vascular Neurology

Background:

  • Standard treatments for vertebrobasilar dolichoectasia (VBD) are controversial due to complexity and risks.
  • Symptomatic VBD often presents with cerebral ischemia and compression, with complex morphology.

Purpose of the Study:

  • To evaluate the efficacy and outcomes of cerebral bypass surgery for treating symptomatic vertebrobasilar dolichoectasia.

Main Methods:

  • A retrospective study of 20 patients with symptomatic VBD who underwent cerebral bypass (high-flow or low-flow) between 2019 and 2024.
  • Analysis of clinical presentations, VBD morphology, surgical approaches, and postoperative outcomes.

Main Results:

  • Clinical improvement was observed in 16 out of 20 patients.
  • Postoperative complications included cerebral infarction or hematoma in 4 patients, with one death due to cerebral infarction.
  • All bypasses remained patent during a mean follow-up of 37 months, with no new deaths.

Conclusions:

  • Cerebral bypass can be an effective treatment for complex VBD unresponsive to conservative management.
  • Precise preoperative assessment is crucial for successful cerebral bypass outcomes in VBD patients.