Arrhythmias & electrophysiology
Association of Case Volume With Ablation Outcomes in Children: Analysis of the NCDR IMPACT Registry
Authors' conclusion
Pediatric catheter ablation acute success was high across a range of center and operator volumes. Complex substrates have increased odds of success at high volume centers, and high and very high-volume centers have consistent rates of success despite increasing case complexity.
Study context
- Population
- Patients undergoing ablation at Improving Pediatric And Adult Congenital Treatment registry sites from April 2016-March 2020ablations at 74 hospitals, 156 operators
- Participants
- 18,666 patients
- Exposure
- Center or operator annual case volume (low, medium, high, or very high) and the likelihood of acute ablation success
- Outcome
- Acute success, overall
Main finding
As reported in the abstract
Acute success was reported in 17,204
92%
Observational data: associations, not effects.
Further findings
| Outcome | Values | P value |
|---|---|---|
| Acute success by center volumeHigh/very high-volume centers vs medium/low centers · marginal but statistically insignificant increases · unadjusted | High/very high-volume centers 92% · medium/low centers 91% | P = 0.24 |
| Acute success by operator volume | very high-volume operators 94% · low 92.4% · medium 91.9% · high 92.2% |
- Acute success by operator volume — P
- P = 0.015
Odds of acute success at high volume centers, patients with congenital heart disease
- OR, high volume centers (multivariable)
- 2.3; CI: 1.21-4.4
- Multivariable model; comparator not stated
Odds of acute success at high volume centers, patients with premature ventricular contractions/ventricular tachycardia
- OR, high volume centers (multivariable)
- 2.2; CI: 1.23-4.1
- Multivariable model; comparator not stated
Operator volume and acute success (multivariable)
- No association between operator volume and acute success
Original publication
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