Why the study?
What is the effect of alpha- and beta-adrenergic stimulation on QTc interval and early afterdepolarization in a patient with idiopathic long QT syndrome?
What is the effect of alpha- and beta-adrenergic stimulation on QTc interval and early afterdepolarization in a patient with idiopathic long QT syndrome?
This case report suggests that alpha-adrenergic stimulation, in addition to beta-adrenergic effects, contributes to QT interval prolongation in idiopathic long QT syndrome.
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Alpha-adrenergic effects may prolong QTc in LQTS; challenges beta-centric consensus but remains hypothesis-generating from one case.
Urao et al. (2004) studied this question.
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