Clinical and Procedural Characteristics Associated With Higher Radiation Exposure During Percutaneous Coronary Interventions and Coronary Angiography

In plain language

In over 20,000 Swedish coronary procedures, higher body mass index (BMI), prior bypass surgery, more treated lesions and chronic total occlusions were linked to higher patient radiation dose; radial access was not, after adjusting for complexity. Staff dose was not measured.

At a glance

Type of study: Original research, Prospective cohort study
Who was studied: Patients
Size: n = 20,669 procedures
Where: Sweden
Topics: Patient dose
Summary based on: the abstract

What it found

Number of treated lesions was strongly associated with higher patient radiation exposure, rising with each additional lesion.
Key figures: 2 lesions β=1.95 (CI 1.84-2.03); 3 lesions β=2.34 (CI 2.16-2.53); 4 lesions β=2.83 (CI 2.53-3.16); all P<0.001
Chronic total occlusion lesions were associated with higher radiation exposure.
Key figures: β=1.39; confidence interval (CI), 1.31-1.48; P<0.001
Prior coronary artery bypass graft surgery was associated with higher radiation exposure.
Key figures: β=1.32; CI, 1.28-1.32; P<0.001
Higher body mass index was associated with higher radiation exposure.
Key figures: β=1.04; CI, 1.04-1.04; P<0.001
After adjusting for procedural complexity, radial access was not associated with higher radiation exposure than femoral access.
Key figures: β=1.00; CI, 0.98-1.03; P=0.67

Limits to keep in mind

Registry-based observational data from one Swedish region measuring patient dose-area product only; staff doses were not measured, and associations may reflect residual confounding.

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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.