1.   At minimum, the heart rhythm disturbance and its treatment can disrupt daily life and cause constant anxiety.

2.   Heart rhythm disturbances can be associated with scopolamine.

3.   Heart rhythm disturbances have been noted in some crew members during flight.

4.   Implantable defibrillators are routinely used for a relatively small group of patients who, like Vice President Dick Cheney, have demonstrable heart rhythm disturbances.

5.   Tsongas is also receiving treatment for a recurrent heart rhythm disturbance that the hospital said was not life-threatening.

6.   We had just finished examining an elderly woman with a heart disturbance when I told them the story of how the abnormality was originally discovered.