Ventricular fibrillation appears to be a newly identified diagnosis among Sen. John Fetterman’s ongoing medical issues, disclosed after a fall on Thursday sent the Pennsylvania Democrat to the ...

Ventricular fibrillation (VFib or VF) and ventricular tachycardia (v-tach or VT) are two types of heart arrhythmia that occur in the heart’s lower chambers called the ventricles. The ventricles ...

Depending on how the heart’s electrical activity appears on an EKG, a doctor may diagnose coarse or fine ventricular fibrillation (VF). Coarse VF appears as larger waves on an EKG compared with the ...

HARRISBURG, Pa. (AP) — U.S. Sen. John Fetterman had what his office says was a “ventricular fibrillation flare-up” that caused him to feel light-headed and fall during an early morning walk Thursday.

Senator John Fetterman takes *** fall walking near his house in Braddock today. *** spokesperson tells us he went to the hospital. Doctors say he had something called an atrial fibrillation flare up ...