Cardiology

Heartbeat out of sync

Life-threatening cardiac arrhythmias often occur after a heart attack, as the scar tissue can interfere with the spread of electrical impulses that activate the heart. An international research team under the leadership of ...

Cardiology

Substance used in Chinese medicine can cause cardiac arrhythmia

Researchers from the Universities of Basel, Vienna and Utrecht report that a medicinal plant frequently used in traditional Chinese medicine—Evodia rutaecarpa—contains substances that can cause cardiac arrhythmia. Extracts ...

Cardiology

New view of the heartbeat

The human cardiac voltage-gated sodium channel (Nav1.5) plays a critical role in maintaining regular heartbeats. Mutations in Nav1.5 cause life-threatening heart rhythm disorders (arrhythmias).

Cardiology

Exercise may decrease heart drug's effectiveness

Peter Ruben and his team of researchers have spent years studying why seemingly healthy patients with inherited cardiac arrhythmias can sometimes suddenly die during exercise. (2017, 2016, 2015) His past research has shown ...

Cardiology

AICDs effective for symptoms, lethal arrhythmia in Brugada

(HealthDay)—Implantable cardioverter-defibrillators (ICDs) are effective in young patients with symptomatic Brugada syndrome, according to a study published in the Jan. 16 issue of the Journal of the American College of ...

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