A heart arrhythmia is when your heart beats too fast, too slow, or out of sync. Some arrhythmias can be genetic. A genetic arrhythmia happens when one or both of your parents pass down a gene change ...

Congenital long QT syndrome (LQTS) is caused by mutations in genes encoding cardiac ion channels, and is characterized by prolongation of the ventricular cardiac action potential, which lengthens the ...

QT prolongation occurs when the heart muscle takes longer to contract and relax than usual. It can affect heart rhythms and lead to sudden cardiac arrest. The heart is a muscle that contracts and ...

One of the principal tasks of an oncologist is to determine whether to administer, reduce the dose, or hold chemotherapy on the basis of patient characteristics, organ function, and toxicities. These ...

Please provide your email address to receive an email when new articles are posted on . More than 13% of users of quetiapine and haloperidol developed severe QT prolongation. Severe QT prolongation ...