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What Happens When You Have a Heart Block?

First-degree heart block is the mildest type and often requires no treatment. Third-degree heart block is the most severe and often needs a pacemaker to regulate the heartbeat. Many different causes ...
Medscape

BLOCK-HF: Replace RV Pacing With BiV in AV-Block Heart Failure

LOS ANGELES — Substituting biventricular (BiV) pacing for standard right ventricular pacing led to significant improvements in survival and hospitalization for heart-failure patients with ...