Arrhythmias & electrophysiology
Predictive value of the PRAETORIAN score for defibrillation test success in patients with subcutaneous ICD: A subanalysis of the PRAETORIAN-DFT trial
Corrected 23 Oct 2026: Measure wording clarified; no values changed.
Primary resultResult — go to the resultOdds ratio for failed DFT 33.77 CI 6.13–279.95Authors' conclusion
A PRAETORIAN score of <90 serves as a reliable indicator for DFT success in patients with S-ICD, and a PRAETORIAN score of ≥90 is a strong predictor for DFT failure.
Study context
- Population
- Patients with de novo subcutaneous implantable cardioverter-defibrillator (S-ICD) implantation randomised to defibrillation testing (DFT)457 underwent DFT per protocol
- Participants
- 482 patients
- Comparison
- PRAETORIAN score ≥90 vs <90 for predicting DFT outcome
- Primary endpoint
- Predictive value of the PRAETORIAN score for DFT success (conversion of induced ventricular arrhythmia in <5 seconds within 2 attempts)
Methodological detailsprespecified subanalysis, multicentre, investigator-initiated
- Prespecified subanalysis
- Multicentre
- Investigator-initiated
Primary result
As reported in the abstract
Odds ratio for failed DFT
33.77
CI 6.13–279.95
P < 0.001
By group
PRAETORIAN score ≥90
25%
PPV for failed DFT
PRAETORIAN score <90
99%
NPV for successful DFT
PRAETORIAN score ≥90vs PRAETORIAN score <90
odds ratio for failed DFT 33.77 (CI 6.13–279.95); P < 0.001
Further findings
DFT result
- Successful DFT
- 445 (97%)
- Failed DFT
- 12 (3%)
Original publication
Predictive value of the PRAETORIAN score for defibrillation test success in patients with subcutaneous ICD: A subanalysis of the PRAETORIAN-DFT trial. Heart Rhythm. Published 8 February 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →