Figure 3.
Representative example of a 5-minute ECG recording and derived variables on QTe, QTp and Te intervals and the different variability indexes (QTeVI, QTpVI and TeVI). Different scales are used in each panel.
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.