Arrhythmias & electrophysiology
Ventricular Electrograms Duration Map to Detect Ventricular Arrhythmia Substrate: the Ventricular Electrograms Duration Map (VEDUM) Project Study
Authors' conclusion
VEDUM maps allow the identification of discrete areas of inhomogeneous and slow conduction.
Study context
- Population
- Patients referred for ventricular tachycardia (VT) ablation
- Participants
- 32 patients
- Exposure
- EGM duration in VEDUM area vs normal tissue
- Outcome
- Electrogram duration
Methodological details3 centres
- 3 centres
Main finding
As reported in the abstract
P < 0.001
- Mean VEDUM area size
- 12.1±6.9 cm² (IQR 7.8-14.9 cm²)
- VEDUM area in dense scar (<0.5 mV)
- 19 (59.4%)
- Deceleration zone inside VEDUM area
- 56.3%
- Late potentials inside VEDUM area
- 81.3%
- VT isthmus projected in VEDUM area (complete activation mapping)
- 93.5%
- All VT isthmuses in VEDUM area (8 patients with multiple VTs mapped)
- 87.5%
Observational data: associations, not effects.
Original publication
Ventricular Electrograms Duration Map to Detect Ventricular Arrhythmia Substrate: the VEDUM Project Study. Circ Arrhythm Electrophysiol. Published 24 July 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →