Malignant arrhythmias are dangerous heart rhythm problems that can lead to cardiac arrest, most often originating in the heart’s lower chambers. These arrhythmias are frequently linked to underlying ...

Hypokalemia may lead to an irregular heartbeat, also known as arrhythmia. Some arrhythmias can be life threatening without treatment, but restoring potassium levels may help reverse symptoms alongside ...

Pulseless ventricular tachycardia occurs when an abnormally rapid heart rate originating in the heart’s lower chambers makes a pulse undetectable. Emergency cardiac defibrillation is usually necessary ...

Panel A shows a cross-section of a normal heart (top) and an endomyocardial biopsy sample from a normal heart (bottom; with hematoxylin and eosin staining) that shows normal histologic characteristics ...

Pulseless ventricular tachycardia (VT) is an atypical heart rhythm that can cause chest pain, fainting, and cardiac arrest. Doctors treat it with cardiopulmonary resuscitation, defibrillators, and ...

Background Both Takotsubo syndrome (TS) and ST-elevation myocardial infarction (STEMI) are conditions characterised by the ...

Irregular heart rhythms are common in PAH and tied to higher risk of poor outcomes, with right heart changes helping predict ...