The sinus node is the body’s natural pacemaker. Located in the heart’s upper right chamber, the sinus node sends out electrical signals that keep the heart beating in perfect rhythm.
If you have atrial fibrillation, or AFIB, then chances are your heart won’t be winning any prizes for efficiency. In fact, hearts with atrial fibrillation are notoriously inefficient.
“Oh, my heart skips a beat
When you walk down the street
I feel a trembling in my knees
And just to know you're mine
Until the end of time
Makes my heart skip a beat” (Buck Owens) ...
A newly-posted video from an evening presentation by Dr. James Edgerton at Boston Atrial Fibrillation Symposium 2009 provides a rare glimpse into the evolution of atrial fibrillation ...