Long QT syndrome (LQTS) is a disorder of the heart's electrical activity. It can cause sudden, uncontrollable, dangerous arrhythmias (ah-RITH-me-ahs) in response to exercise or stress. Arrhythmias are problems with the rate or rhythm of the heartbeat.
Gene Name | Chromosome number |
---|---|
ANK2 | 4 |
SCN5A | 3 |
KCNH2 | 7 |
SCN4B | 11 |
KCNQ1 | 11 |
KCNJ2 | 17 |
SNTA1 | 202 |
KCNE1 | 21 |
KCNE2 > | 21 |