Often dismissed as stress or dehydration, fainting can be the heart's first warning sign. Cardiologists caution that ...

Researchers have for the first time identified the genetic pathway between the heart and brain tied to fainting. They found that vagal sensory neurons trigger fainting, laying a foundation for ...

Why has an otherwise healthy woman in her late 60s had repeated episodes of fainting and dizziness for the past several weeks? The woman presented to the emergency department immediately after one ...

Fainting, or syncope, is often dismissed as harmless, but doctors warn it can be an early sign of heart failure. It occurs ...

Establishing the cause or causes of syncope serves two principal purposes. First, an etiologic diagnosis permits assessment of prognosis and risk of recurrence, both issues of great concern for ...

Seizures can disrupt the autonomic nervous system, potentially leading to cardiac arrhythmias, which are abnormal heart rhythms. Cardiac arrhythmias can cause convulsive syncope, a condition ...

Sophia Antipolis, France - On the eve of the European Society of Cardiology (ESC) 2007 Congress, which begins Sunday in Vienna, Austria, the ESC, in partnership with the European Heart Rhythm ...

An image of a heart labeled by vagal sensory neurons. In a new study published in the journal Nature, UC San Diego researchers and their colleagues found that these neurons trigger fainting, laying a ...