一项新研究提示,某些药物触发副作用长QT(LQT)的机制比以前认为的更为复杂。长QT综合征(LQTS)的特征是心电图QT间期延长。正常情况下,提示去极及复极时间延长,病人可能发生尖端扭转型室性心动过速,发生晕厥、心悸,甚至猝死。有些人发生LQTS是由于他或她携带13个基因的>700种突变中的一种或多种。有些人则因为某种药物,尤其是抑制 A new study suggests that the mechanism by which certain drugs trigger side effects with long QT (LQT) is more complicated than previously thought. Long QT Syndrome (LQTS) is characterized by prolongation of the QT interval of the ECG. Under normal circumstances, suggesting that the extrapolation and repolarization prolonged, the patient may have torsades de pointes reversal of ventricular tachycardia, syncope, heart palpitations, and even sudden death. Some people develop LQTS due to one or more of the> 700 mutations in 13 genes that he or she carries. Some people because of a drug, especially inhibition