Restricting excessive cardiac action potential and QT prolongation: a vital role for IKs in human ventricular muscle [PDF]
Background - Although pharmacological block of the slow, delayed rectifier potassium current (I-Ks) by chromanol 293B, L-735,821, or HMR-1556 produces little effect on action potential duration (APD) in isolated rabbit and dog ventricular myocytes, the ...
Biliczki, Péter +10 more
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The Genetics of Acquired Long QT Syndrome
Hideki Itoh
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CaMKII-dependent regulation of cardiac Na(+) homeostasis. [PDF]
Na(+) homeostasis is a key regulator of cardiac excitation and contraction. The cardiac voltage-gated Na(+) channel, NaV1.5, critically controls cell excitability, and altered channel gating has been implicated in both inherited and acquired arrhythmias.
Grandi, Eleonora, Herren, Anthony W
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QT Prolongation and Acquired Long QT Syndrome in Climbers on Mount Everest
Thomas Pilgrim +9 more
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Comparative Characteristics of Beta-Blockers in Patients with Congenital Long QT Syndrome
Congenital long QT syndrome is a pathology that requires special attention and knowledge about the safety and effectiveness of various medications.
A. Yu. Proshlyakov +2 more
doaj +1 more source
Utility of Zebrafish Models of Acquired and Inherited Long QT Syndrome
Long-QT Syndrome (LQTS) is a cardiac electrical disorder, distinguished by irregular heart rates and sudden death. Accounting for ∼40% of cases, LQTS Type 2 (LQTS2), is caused by defects in the Kv11.1 (hERG) potassium channel that is critical for cardiac
Kyle E. Simpson +6 more
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The slides are from a presentation given by Professor Ravi Iyengar from Mount Sinai School of Medicine at the Drug Forum Meeting #9 that took place in Washington, DC on February 20-21, 2008.
Ravi Iyengar
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Diclofenac Prolongs Repolarization in Ventricular Muscle with Impaired Repolarization Reserve [PDF]
Background: The aim of the present work was to characterize the electrophysiological effects of the non-steroidal anti- inflammatory drug diclofenac and to study the possible proarrhythmic potency of the drug in ventricular muscle.
A Farkas +56 more
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Torsades de pointes in the PACU after outpatient endoscopy: a case report
Background This case demonstrates the severe electrolyte derangements that may present after a common therapy such as a bowel preparation for an outpatient procedure and the rare yet potential detrimental outcomes of those abnormalities.
Andrew Schaar +2 more
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Impact of functional studies on exome sequence variant interpretation in early-onset cardiac conduction system diseases [PDF]
Aims The genetic cause of cardiac conduction system disease (CCSD) has not been fully elucidated. Whole-exome sequencing (WES) can detect various genetic variants; however, the identification of pathogenic variants remains a challenge.
Asano, Yoshihiro +44 more
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