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Prospective Study on the Incidence of Cerebrovascular Disease After Coronary Angiography

Akihiro Tokushige1, Masaaki Miyata1, Takeshi Sonoda1

  • 1Department of Cardiovascular Medicine and Hypertension, Graduate School of Medical and Dental Sciences, Kagoshima University.

Journal of Atherosclerosis and Thrombosis
|September 1, 2017
PubMed

Insights

Prior coronary artery bypass grafting (CABG) is a significant risk factor for stroke after coronary angiography (CAG). This study investigated stroke incidence and risk factors following CAG, finding CABG independently increases stroke risk.

Area of Science:

  • Cardiology
  • Neurology
  • Radiology

Background:

  • Coronary angiography (CAG) is associated with a notable incidence of silent and symptomatic cerebral infarction.
  • Risk factors for post-CAG cerebral infarction remain incompletely understood.
  • Cerebrovascular disease (CVD) complications require further investigation.

Purpose of the Study:

  • To investigate the incidence of CVD complications within 48 hours after CAG.
  • To identify risk factors associated with cerebral infarction post-CAG.
  • To utilize diffusion-weighted magnetic resonance imaging (MRI) for early detection.

Main Methods:

  • A cohort of 61 patients undergoing CAG and MRI between September 2013 and April 2015 was analyzed.
  • Patient characteristics and procedural data were collected to assess risk factors.
  • Diffusion-weighted MRI was employed to detect silent cerebral infarction.

Main Results:

  • Silent cerebral infarction was detected in 9.8% of patients post-CAG.
  • Prior coronary artery bypass grafting (CABG) was more prevalent in the stroke group, though not initially significant (P=0.07).
  • After adjusting for confounders, prior CABG emerged as a significant independent risk factor for stroke post-CAG (OR: 11.7, P=0.04).

Conclusions:

  • The incidence of cerebral infarction after CAG appears unrelated to the catheterization procedure itself.
  • Atherosclerosis, potentially exacerbated by prior CABG, is suggested as a primary cause of post-CAG stroke.
  • Identifying patients with prior CABG may aid in mitigating stroke risk after CAG.
Abstract

Keywords:
Cerebral infarctionCoronary angiographyMagnetic resonance imaging

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