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.
Diagnostic criteria for long QT syndrome (LQTS) (the ‘Schwartz-score’). Definite LQTS is defined by an LQTS score ≥3.5 points, intermediate probability of LQTS by an LQTS score of <3.5 and >1 and a low probability of LQTS by ≤1 point. In the family history rows, the same family member cannot be counted in both categories.
