Acute coronary syndrome due to right coronary spasm and documented lambda-like J waves

Ming, Yu; Zhang, Qin; Huang, Xiaolun

doi:10.1007/s00392-018-1249-8

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…5 ). SHS can occur in patients with acute ST-segment elevation myocardial infarction (STEMI), coronary vasospasm, or cardiac arrest [ 26 , 27 ]. It is often observed in acute coronary artery occlusion [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

Spiked Helmet Sign: An Uncommon Electrocardiographic Marker

Wang,

Zhong,

Chu

et al. 2023

Rev. Cardiovasc. Med.

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The spiked helmet sign (SHS) is a rare electrocardiographic marker associated with an increased risk of lethal ventricular tachyarrhythmias and sudden cardiac death. To our knowledge, this is the first study aimed at reviewing recent research progress on this electrocardiogram (ECG) pattern to summarize its electrophysiological mechanisms, epidemiological features, clinical characteristics, and clinical significance. SHS formation is attributed to sympathetic hyperactivity, which mediates increased dispersion of ventricular repolarization, leading to marked QT prolongation and macroscopic T-wave alternans. This pattern can be observed in critically ill patients with cardiac or noncardiac conditions. In particular, immediate identification of this ECG abnormality is crucial in recognizing and treating noncardiac conditions in older male patients.

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Section: Discussionmentioning

confidence: 99%