In plain language
At one hospital, an ultralow-dose fluoroscopy protocol for pacemaker, defibrillator and cardiac resynchronization therapy (CRT) implantation cut patient effective dose by 59% without longer procedures or more complications. Staff dose was not measured, though lower patient dose usually lowers scatter to the fluoroscopy team.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Patients
- Size
- n = 1,173 patients
- Summary based on
- the abstract
What it found
The ultralow-dose protocol reduced patient effective dose per procedure by 59% compared with the conventional low-dose protocol.
Key figures: 59% (median 0.25 [interquartile range (IQR) 0.11-0.63] vs median 0.10 [IQR 0.03-0.28] mSv; P <.0001)
Procedure time did not change significantly with the new protocol.
Key figures: P = .5
Procedure success and complication rates were not worsened by the dose reduction.
Key figures: success P = 1; complications P = .8
Male sex, higher body mass index (BMI), longer procedure and fluoroscopy times, and conventional protocol use independently predicted higher doses.
The protocol combined reduced pulse width, thicker copper filtration, reduced detector entrance dose, reduced pulse rate and optimized postprocessing.
Limits to keep in mind
Single-centre before-after comparison of consecutive years rather than randomized; only patient effective dose was reported, so staff exposure reduction is inferred, not measured.
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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.