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.
Histogram plot of ages for disease-related symptoms and interventions. An initial rhythm abnormality (46% of the cohort) was seen at a median estimated age of 11 years old, followed by the initiation of NIV (non-invasive ventilation) at a median estimated age of 16 years. Cardiac medication was taken by 25% of the cohort with echocardiogram abnormalities present in 22%. ICD and pacemakers were relatively uncommon (9% and 7%, respectively).
