Dr. Smith's ECG Blog: "Shark Fin": A Deadly ECG Sign that ...
https://hqmeded-ecg.blogspot.com/2018/06/shark-fin-deadly-ecg-sign-that-you-must.html
Shark Fin Sign should be recognized based on its characteristic morphology, and confirmed by delineating the J-point using the technique described above. While there is a paucity of literature on the topic, the presence of this sign appears to be associated with a significant mortality, underscoring the critical importance of prompt recognition ...
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