1. This often results in the restoration of normal sinus rhythm of the heart. 2. With a sinus rhythm , the mitral annulus undergoes dynamic changes during the cardiac cycle. 3. Electrocardiogram; regular sinus rhythm , unchanged from May 28, 1999. 4. They get the defibrillator ready and Chase manages to shock him back into sinus rhythm . 5. After all, God made you in sinus rhythm . 6. Without any nervous stimulation, the SA node would establish a sinus rhythm of approximately 100 bpm. 7. The normal rhythmical heart beat, called sinus rhythm , is established by the sinoatrial node, the heart's pacemaker. 8. You were cardioverted to regular sinus rhythm . 9. This sinus rhythm is important because it ensures that the heart's atria reliably contract before the ventricles. 10. Bachmann's bundle is, during normal sinus rhythm , the preferential path for electrical activation of the left atrium.