In plain language
Interventional cardiologists working in high-volume cath labs showed more chromosomal damage markers in blood cells than matched clinical cardiologists. This is a biomarker association, not proof of disease.
At a glance
- Type of study
- Original research, Case-control study
- Who was studied
- Interventional cardiologists, Other physicians
- Size
- n = 62 physicians
- Topics
- DNA and cellular effects
- Summary based on
- the abstract
What it found
Interventional cardiologists had higher micronucleus frequency in peripheral lymphocytes than matched clinical cardiologists, with some individual overlap.
Key figures: 20.5+/-1.6 vs. 12.8+/-1.3, P=0.001
Micronucleus frequency correlated with years of professional activity in interventional cardiologists but not in clinical cardiologists.
Key figures: r=0.428, P=0.02 vs. r=0.253, P=0.17
The damage varied between individuals and was only weakly related to exposure duration, suggesting individual and environmental factors modulate harm.
Limits to keep in mind
Small case-control study of 62 physicians using a surrogate biomarker (micronuclei) rather than clinical outcomes; no individual dose measurements are reported in the abstract and confounders beyond age and sex matching are not described.
Related research summaries
- Occupational Radiation Exposure and Thyroid Nodules in Healthcare Workers: A Review (2025, Narrative review)
- Addressing the Occupational Risk of Radiation Exposure in the Evolving Field of Interventional Echocardiography (2024, Narrative review)
- Brain Tumors, Interventionists, and Radiation: How Real Is the Risk? (2016, Narrative review)
- The Biological Effects of Diagnostic Cardiac Imaging on Chronically Exposed Physicians: The Importance of Being Non-Ionizing (2004, Narrative review)
- Antioxidant premedication reduces mitochondrial and nuclear DNA damage repair in interventional physicians performing X-ray-guided angiography procedures: a pilot clinical intervention study (2026, Laboratory or biomarker study)
How this summary was made
ORSIF prepared this summary with AI assistance from the abstract of the paper. A program then checked that the passage supporting each finding appears word for word in that source. A person has not yet reviewed each summary, so read the original before relying on a number. ORSIF summarizes research and does not endorse any product or company. Report a problem with this summary.
Prepared November 3, 2026.