Disease

Long QT syndrome 31, 2, 3

Gene

SCN5A

Inheritance AD
Current Treatments nadolol, propranolol, mexiletine, ranolazine, flecainide, left cardiac sympathetic denervation, implantable cardiac defibrillator (ICD)
Evidence for Treatment guideline4, 5
Non-Molecular Testing Availability yes
Non-Molecular Test EKG6
ClinGen https://actionability.clinicalgenome.org/ac/Pediatric/ui/stg2SummaryRpt?doc=AC131
Disease Frequency (per 100,000) 406
Genes Included in Disease Frequency KCNQ1, KCNH2, SCN5A
Experimental / Investigational Therapies https://clinicaltrials.gov/ct2/results?cond=Long+QT+Syndrome&term=&cntry=&state=&city=&dist=
Last Updated: March 5, 2026
RX Genes
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