General responses to selected questions from Joel Braunstein,
MD, of Johns Hopkins University and Joseph Toscano, MD. I was
diagnosed with a heart irregularity call "Bi Gemini." Where can
I find information about this and what is it? The condition you
describe, bigeminy (bi-gem-i-ne), reflects a slightly abnormal
heart rhythm that is usually of no serious concern in the
absence of other cardiovascular disease. This condition
describes a state where your heart alternates one "normal" beat
with one "premature" beat. As you are probably aware, the heart
contains cells capable of initiating electrical activity, which
are necessary for enabling coordinated heart contractions. While
these cells are contained throughout the heart, the sinus node
is typically the place where these electrical impulses begin.
The term "normal sinus rhythm" describes the normal beating of
the heart, where electrical impulses originate in the sinus node
(SA node), travel through the atria and atrioventricular node
(AV node), and terminat