Frequent ventricular ectopy was defined by the presence of seven or more ventricular premature beats per minute, ventricular bigeminy or trigeminy, ventricular couplets or triplets, ventricular ...

Idiopathic ventricular fibrillation can affect people with no clinical evidence of heart disease. ... Grade 4(a): ventricular couplets; Grade 4(b): >3 PVCs in a row; Grade 5: early PVC (R-on-T PVC) ...

Background: A young adult female presented with syncope and periodic weakness. A 12-lead electrocardiogram showed frequent premature ventricular contractions and prolonged QU interval. Repetitive ...

Frequent ventricular ectopy was defined by the presence of 7 or more ventricular premature beats per minute, ventricular bigeminy or trigeminy, ventricular couplets or triplets, ventricular ...

1. Atrial fibrillation with an uncontrolled ventricular response 2. Intermittent right bundle branch block - rate dependent This ECG shows atrial fibrillation with an uncontrolled ventricular rate.

CXRs were obtained in 6 patients(pts) and echocardiograms were performed in 8 pts. 7 pts were judged to have an otherwise normal heart while 1 pt was found to have a small VSD and another had mild ...

The frequency of ventricular ectopic beats was reduced from 12,720 per 24 hours to 562 per 24 hours, with no evidence of couplets or triplets. The QRS voltages remained unchanged.

This ECG example is a rate dependent right bundle and not a ventricular couplet (two PVCs in a row) due to the QRS morphology.