Figure 1.
Pressure–volume loops of the normal heart (baseline at 0 weeks), acute left bundle branch block (2.9 weeks), and chronic left bundle branch block (15.7 weeks) simulations.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.