Great news on Barry. I question if his problem was "arterial" flutter and not "atrial" flutter. The atria are the two chambers at the top of the heart through which blood enters the heart and goes on to the ventricles which are the main pumping units of the heart. The ventricles provide the action that forces the blood through the body. Atrial flutter would be non-rhythmic or arrhythmic beating of the atria which would have little value in pushing the blood down into the ventricles. Depending upon the precise situation, atrial flutter or fibrillation is often treated with drugs that prevent the electrical impulse from the atria from going into the ventricles to disrupt the entire beating of the heart. Dave, please pass my good wishes to Barry. It sounds as though he should be up and around very soon. Jim W. AMATEUR RADIO: The only fail-safe communications system in the world. ARRL: The reason Amateur Radio is! Jim Weaver, K8JE, Director, Great Lakes Division ARRL 5065 Bethany Rd., Mason, OH 45040-9660, Tel. 513-459-0142, E-mail <mailto:k8je@arrl.org> k8je@arrl.org