Arrhythmias & electrophysiology

Systematic review of long QT syndrome identified during fetal life

Heart RhythmPublished Systematic review and individual participant data meta-analysis

Study context

Population
Fetuses with suspected long QT syndrome (LQTS) confirmed postnatally
Participants
265 fetuses83 studies
Outcome
Prediction of death (adverse perinatal and postnatal outcomes)

Pooled result

As reported in the abstract

Antenatal predictors of death

Fetal QTc predicting death, ROC AUC

0.85

95% CI 0.66–1.00

Fetal heart rate predicting death, ROC AUC

0.51

95% CI 0.31–0.71

Heart rate z-score predicting death, ROC AUC

0.59

95% CI 0.37–0.80

Antenatal VT/TdP or functional 2:1 atrioventricular block (AVB) plus no family history of LQTS predicting death, ROC AUC

0.82

95% CI 0.76–0.88

Original publication

Systematic review of long QT syndrome identified during fetal life. Heart Rhythm. Published 22 December 2022. doi:10.1016/j.hrthm.2022.12.026

Composed by AI from the published abstract and checked against it. How Briefs are made →

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