A biventricular pacemaker is usually implanted under
the collarbone. Three electrodes are threaded into the
heart through a vein and programmed to stimulate
both sides of the heart to contract at the same time.
An efficient heartbeat relies on the walls of the heart’s main pumping chamber (left ventricle) contracting and relaxing in sync. When a heart weakened by heart failure loses this ability, a treatment called cardiac resynchronization therapy (CRT) may be recommended. In CRT, a biventricular pacing device is implanted and programmed to stimulate the walls of […]
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