Dynamic "spiked helmet sign": Further evidence for prolonged QT
Brandon W Yan1, Deborah Yip2, Jaya Mallidi3
1Department of Medicine, UCSF School of Medicine, San Francisco, CA, USA.
Journal of Electrocardiology
|April 5, 2024
Abstract:
A 69-year-old woman was admitted after a cardiac arrest. She developed status epilepticus and was later found to have variable morphologies of a "spiked helmet sign" (SHS) on ECGs in the setting of prolonged QT interval, raising the question of whether this sign is a manifestation of QT prolongation.


