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.
None of the four parameters was substantially affected by the betablockers. 0, no betablocker treatment; 1, betablocker treatment. * Units for the ordinate: turbulence onset of the HR (HR-TO), %; turbulence slope of the HR (HR-TS), ms BBI−1; turbulence slope of the mean blood pressure (MBP-TS), mmHg BBI−1; and postextrasystolic amplitude potentiation (PEAP), %.
