| It is not uncommon for this rhythm to progress into atrial flutter or atrial fibrillation. |
| For Protocol 4, animals were instrumented before delivery to measure pulmonary artery pressure and left atrial pressure. |
| The addition of mean right atrial pressure to the peak tricuspid jet velocity gives an accurate noninvasive estimate of peak pulmonary pressure. |
| Digoxin is incapable of converting atrial fibrillation or atrial flutter to a normal sinus rhythm. |
| The mechanical contribution of atrial contraction to normal cardiac function was first described in the 17th century by William Harvey. |
| The resultant irregular rhythm may be difficult to differentiate from atrial fibrillation. |
