Pathogenic KCNH2 variant in monozygotic twins with speech delay and lower risk type 2 long QT syndrome
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Type 2 Long QT Syndrome (type 2 LQTS) is a cardiac channelopathy caused by pathogenic variants in the KCNH2 gene, often associated with delayed cardiac repolarization and increased risk of arrhythmias. While its impact is traditionally considered cardiac, emer... ...
