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Epinephrine Challenge
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DOI：10.1016/j.jacep.2026.03.033.png)
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Abstract
En 中文
The diagnostic implications of a positive epinephrine challenge for long QT syndrome (LQTS) or catecholaminergic polymorphic ventricular tachycardia (CPVT) are not well understood. Test interpretation is challenging, and false positives may be substantial.
Keywords:
diagnosis
epinephrine challenge
sudden cardiac death
unexplained cardiac arrest
CPVT
catecholaminergic polymorphic ventricular tachycardia
ECG
electrocardiogram
FDR
first-degree relative
LQTS
long QT syndrome
LR−
negative likelihood ratio
LR+
positive likelihood ratio
MRI
magnetic resonance imaging
PMVT
polymorphic ventricular tachycardia
PPV
positive predictive value
PVC
premature ventricular contraction
SCD
sudden cardiac death
UCA
unexplained cardiac arrest
VT
ventricular tachycardia
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