THE case reported below represents a new and very distinct clinical entity. The young patient was observed by us for some years. It was hoped that a similar combination of clinical findings might be ...

Five factors underlie the ongoing overdiagnosis and misdiagnosis of long QT syndrome (LQTS), including temporary QT prolongation following vasovagal syncope, a "pseudo"-positive genetic test result, ...

SAN FRANCISCO, CA—Consuming a large quantity of grapefruit juice has effects on the QT interval in healthy adults similar to those seen with moxifloxacin, an antibiotic with known QT-prolonging ...

Long QT syndrome (LQTS) is potentially lethal if left untreated. Accurate diagnosis is, therefore, vital. Patients with LQTS have impaired adaptation of the QT interval in response to changes in heart ...

Long QT syndrome (LQTS) is the prototypic cardiac channelopathy underscored by profound genetic and phenotypic heterogeneity. In 1991, the first LQTS chromosome locus was identified and subsequently ...

Researchers have been using artificial intelligence (AI) to develop a mobile device that can identify certain patients at risk of sudden cardiac death. Researchers from Mayo Clinic and AliveCor Inc.

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 . SAN FRANCISCO — Patients who drank 2 L grapefruit juice within several hours had significant corrected QT ...

The QT interval is the time from the beginning of the QRS complex (ventricular depolarization) to the end of the T wave (ventricular repolarization). The normal QT interval is controversial and ...

As more consumer-facing devices add features to measure the heart’s electrical activity, companies are looking for new ways to turn this data into valuable health information. AliveCor, a startup that ...