The study investigated the genetic factors related to sudden cardiac death (SCD), focusing on specific gene variations in patients with implantable cardioverter-defibrillators (ICDs).
In the DISCOVERY trial, seven single-nucleotide polymorphisms (SNPs) in genes related to G-proteins were analyzed, revealing significant associations of two SNPs in the GNAS gene with ventricular tachyarrhythmia (VT).
These findings were further validated in a larger community-based group, showing that the identified SNPs may predict increased risks for both VT and SCD.