Familial and acquired long QT syndrome and the cardiac rapid delayed rectifier potassium current. Witchel, H. & Hancox, J. Clin Exp Pharmacol Physiol, 27(10):753–766, October, 2000. bibtex @Article{RSM:Wit2000,
author = "H.J. Witchel and J.C. Hancox",
title = "Familial and acquired long {QT} syndrome and the cardiac
rapid delayed rectifier potassium current.",
journal = "Clin Exp Pharmacol Physiol",
year = "2000",
month = oct,
volume = "27",
number = "10",
pages = "753--766",
robnote = "Acquired LQTS has many similar clinical features to
congenital LQTS, but typically affects older
individuals and is often associated with specific
pharmacological agents. 3. A growing number of drugs
associated with QT prolongation and its concomitant
risks of arrhythmia and sudden death have been shown to
block the 'rapid' cardiac delayed rectifier potassium
current (IKr) or cloned channels encoded by the human
ether-a-go-go-related gene (HERG; the gene believed to
encode native IKr). The drugs that produce acquired
LQTS are structurally heterogeneous, including
anti-arrhythmics, such as quinidine, non-sedating
antihistamines, such as terfenadine, and psychiatric
drugs, such as haloperidol. Here, clinical observations
are associated with cellular data to correlate acquired
LQTS with the IKr/HERG potassium (K+) channel. One
strategy for developing improved compounds in those
drug classes that are currently associated with LQTS
could be to design drug structures that preserve
clinical efficacy but are modified to avoid
pharmacological interactions with IKr.",
bibdate = "Tue Oct 30 15:16:38 2001",
}
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