Long QT Syndrome
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 |