Long QT syndrome - Wikipedia
https://en.m.wikipedia.org/wiki/Long_QT_syndrome
WEBLong QT syndrome (LQTS) is a condition affecting repolarization (relaxing) of the heart after a heartbeat, giving rise to an abnormally lengthy QT interval. It results in an increased risk of an irregular heartbeat which can result in fainting , drowning , seizures , or sudden death . [1]
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