Arrhythmias & electrophysiology

CineECG analysis provides new insights into Familial ST-segment Depression Syndrome

EuropacePublished Case-control study

Authors' conclusion

CineECG analyses indicated abnormal repolarization with basal directions, and the Fam-STD ECG phenotype was simulated by reducing APD and APA in the left ventricle basal regions. Detailed ST-analysis showed amplitudes consistent with the proposed diagnostic criteria for Fam-STD patients.

Study context

Population
Patients with Familial ST-segment Depression Syndrome (74% females, mean age 51.6 ± 6.2 years)
Participants
27 vs 83
Comparison
Fam-STD patients vs matched controls
  • Fam-STDn = 27
  • Controlsn = 83reference
Outcome
Electrical activation pathway (CineECG, anterior-basal orientation) and ST-segment amplitudes in nine 10 ms subintervals, Fam-STD vs matched controls
Methodological detailsage- and sex-matched controls, computer simulation
  • Age- and sex-matched controls
  • Computer simulation

Main finding

As reported in the abstract

Significantly abnormal activation direction toward basal areas of the heart, from QRS 60-89 ms until Tpeak-Tend, in Fam-STD
all P < 0.001
Significant ST-segment differences in all nine 10 ms subintervals, most prominent at 70-79/80-89 ms
all P < 0.01

Observational data: associations, not effects.

Original publication

CineECG analysis provides new insights into Familial ST-segment Depression Syndrome. Europace. Published 4 May 2023. doi:10.1093/europace/euad116

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