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What Is a biventricular pacemaker?

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Leads are tiny wires implanted through a vein into the right ventricle and into the coronary sinus vein to pace or regulate the left ventricle. Usually (but not always), a lead is also implanted into the right atrium. This helps the heart beat in a more balanced way.

Traditional pacemakers are used to treat slow heart rhythms. Pacemakers regulate the right atrium and right ventricle to maintain a good heart rate and keep the atrium and ventricle working together. (This is called AV synchrony.) Biventricular pacemakers add a third lead to help the left ventricle have a normal contraction when it also doesn't function properly.

Reviewed by James Beckerman on July 6, 2018
Reviewed by James Beckerman on July 6, 2018

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Who is the best candidate for a biventricular pacemaker?

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