Arrhythmias & electrophysiology
Premature ventricular complexes: Assessing burden density in a large national cohort to better define optimal ECG monitoring duration
Authors' conclusion
Extending ambulatory monitoring beyond 24 hours to 7 days or more improves accuracy of assessing PVC burden. Ventricular tachycardia frequency and duration vary by initial PVC density, highlighting the need for prolonged cardiac monitoring.
Study context
- Population
- Adults (>18 years) with premature ventricular contraction (PVC) burden ≥5% and Zio patch wear period ≥13 days, US, June 2011 to April 2022
- Participants
- 106,705 patch monitors
- Exposure
- Low vs Moderate vs High
- Outcome
- Mean measured error of PVC burden by monitoring duration (optimal ECG monitoring duration to characterize PVC burden)
Methodological detailscommercial ambulatory ECG patch data, US national cohort
- Commercial ambulatory ECG patch data
- US national cohort
Main finding
As reported in the abstract
PVC burden mean error by monitoring duration
Mean error at 24 hours
2.9%
Mean error at 7 days
1.3%
Mean error at 10 days
0.7%
Observational data: associations, not effects.
Further findings
Population characteristics
- Mean age, years (±SD 14.6)
- 70.6
- Female
- 33.6%
- PVC burden higher in male patients and those >65 years of age
Number of VT episodes per patient by PVC burden
- VT episodes per patient increased with increasing PVC burden
- P < 0.0001
Original publication
Premature ventricular complexes: Assessing burden density in a large national cohort to better define optimal ECG monitoring duration. Heart Rhythm. Published 18 April 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →