Neuropsychological Testing in Interventional Cardiology Staff after Long-Term Exposure to Ionizing Radiation

J Int Neuropsychol Soc. 2015 Oct;21(9):670-6. doi: 10.1017/S135561771500082X. Epub 2015 Sep 24.


This study aimed at comparing neuropsychological test scores in 83 cardiologists and nurses (exposed group, EG) working in the cardiac catheterization laboratory, and 83 control participants (non exposed group, nEG), to explore possible cognitive impairments. The neuropsychological assessment was carried out by means of a battery called "Esame Neuropsicologico Breve." EG participants showed significantly lower scores on the delayed recall, visual short-term memory, and semantic lexical access ability than the nEG ones. No dose response could be detected. EG participants showed lower memory and verbal fluency performances, as compared with nEG. These reduced skills suggest alterations of some left hemisphere structures that are more exposed to IR in interventional cardiology staff. On the basis of these findings, therefore, head protection would be a mandatory good practice to reduce effects of head exposure to ionizing radiation among invasive cardiology personnel (and among other exposed professionals).

Keywords: Brain; Invasive cardiology; Ionizing radiation; Left hemisphere; Neuropsychological tests; Professional exposure.

MeSH terms

  • Adult
  • Brain / radiation effects
  • Cardiology Service, Hospital / statistics & numerical data*
  • Dose-Response Relationship, Radiation
  • Female
  • Humans
  • Male
  • Memory, Short-Term / radiation effects
  • Mental Recall / radiation effects
  • Middle Aged
  • Neuropsychological Tests
  • Occupational Exposure / adverse effects*
  • Radiation Exposure / adverse effects*
  • Radiation, Ionizing
  • Radiology, Interventional / statistics & numerical data*
  • Speech / radiation effects