The rhythm on the heart monitor looked like ventricular tachycardia, a fast, wide-complex rhythm that can be fatal if left untreated. Doctors tried to shock it back to normal with synchronized cardioversion. Nothing changed, because the problem was not a runaway heart rhythm at all.
When the team at Rutgers New Jersey Medical School in Newark looked at a full 12-lead electrocardiogram, they saw a normal sinus rhythm with ST-segment elevations that appeared to start before the QRS complex, the main spike of each heartbeat. That odd shape is known as the "spiked helmet sign," named for its resemblance to the pointed Prussian Pickelhaube helmet. In their case report in JACC: Case Reports, published May 20, 2026, the doctors argue that the pattern was not a heart emergency to fix but a sign of how sick the rest of their patient was.
