Increased risk of posterior circulation infarcts among ischemic stroke patients with cervical spondylosis

Chih-Chi Chen1, Chia-Ying Chung1, Tsong-Hai Lee2

  • 1Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan.

Insights

Cervical spondylosis increases the risk of posterior circulation infarcts (POCI) in ischemic stroke patients. Hypertension is also a significant risk factor for POCI, highlighting the need for vigilance in at-risk individuals.

Area of Science:

  • Neurology
  • Vascular Medicine
  • Orthopedics

Background:

  • Cervical spondylosis is a known cause of vertebral artery stenosis.
  • Cervical osteophytes can compress the vertebral artery, leading to posterior circulation infarcts (POCI).
  • Limited research exists on risk factors and stroke subtypes in ischemic stroke patients with cervical spondylosis.

Purpose of the Study:

  • To analyze risk factors and stroke subtypes in ischemic stroke patients with and without cervical spondylosis.
  • To identify predictors of POCI by comparing patients with and without POCI.

Main Methods:

  • A case-controlled study comparing ischemic stroke patients with cervical spondylosis (Stroke+C group, n=38) and without (Stroke-C group, n=152).
  • Data collected included demographics, stroke risk factors (hypertension, diabetes, etc.), and stroke classification (Oxford Community Stroke Project).
  • Patients were categorized into POCI or non-POCI groups; vertebral artery ultrasound findings were recorded for the Stroke+C group.

Main Results:

  • The Stroke+C group had a higher incidence of POCI (34.2%) compared to the Stroke-C group (17.5%) (OR=2.41, P<0.05).
  • Hypertension (OR=3.41, P<0.01) and cervical spondylosis (OR=2.41, P<0.05) were identified as independent risk factors for POCI.
  • Vertebral artery stenosis was assessed in the Stroke+C group.

Conclusions:

  • Ischemic stroke patients with cervical spondylosis have a higher propensity for POCI.
  • Hypertension is a significant independent risk factor for POCI in ischemic stroke patients.
  • Clinical attention should be directed towards the potential for POCI in patients diagnosed with cervical spondylosis.
Abstract

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