Answers are grounded in this paper and cite their sources.
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.
No takes yet. Share an insight, caveat, or question.
Yan et al. (2024) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: