In plain language
In 112 matched patients undergoing primary percutaneous coronary intervention (PCI) for STEMI, fluoroscopy at 7.5 rather than 15 frames/s roughly halved patient radiation dose without longer procedures or more complications. Staff dose was not measured, though lower patient dose usually means less scatter.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Patients
- Size
- n = 112 patients (propensity-matched)
- Summary based on
- the abstract
What it found
Fluoroscopy at 7.5 frames/s reduced dose-area product compared with 15 frames/s during primary PCI.
Key figures: 48.9% reduction; 9917 ± 5543 vs 14766 ± 7272 cGycm2, P < 0.001
Air kerma was also lower with the 7.5 frames/s protocol.
Key figures: 61.1% reduction; 1209 ± 562 vs 1948 ± 1105 mGy, P < 0.001
Procedural time, fluoroscopy time and contrast volume did not differ between groups.
Key figures: procedural time 38.1 vs 38.8 min, P = 0.830; fluoroscopy time 13.0 vs 13.5 min, P = 0.703
The low frame rate protocol did not increase contrast-induced nephropathy or cumulative adverse events.
Key figures: CIN 23.2% vs 25.0%, odds ratio (OR) 0.907, 95% confidence interval (CI) 0.381-2.157; adverse events 30.4% vs 28.6%, OR 1.090
Limits to keep in mind
Retrospective single-series study with 56 matched patients per group; only patient dose metrics were measured, not operator or staff dose.
Related research summaries
- Fluoroscopy-minimization strategy for catheter ablation of Supraventricular Tachycardia by wOmen OPerators: the STOOP Multicentre Registry (2026, Prospective cohort study)
- Two Central Nervous System Tumors in One Catheter Lab: Time to Rethink Radiation Protection (2026, Retrospective cohort study)
- Radiation Awareness for EVAR in Hybrid Operating Room: An Instant Operator Risk Chart (2021, Dosimetry measurement study)
- Utilization of a Radiation Safety Time-Out Reduces Radiation Exposure During Electrophysiology Procedures (2019, Prospective cohort study)
- Completely nonfluoroscopic catheter ablation of left atrial arrhythmias and ventricular tachycardia (2018, Case report or series)
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.