SHARK_FIN
Technical documentation
Shark-Fin Pattern (Triangular Wave / Giant Lambda)
Giant monophasic fusion of QRS complex, ST segment and T wave into a single triangular deflection ('shark-fin'). Indicates massive hyperacute transmural ischemia with extreme risk of ventricular fibrillation and cardiogenic shock.
Also known as: Shark-Fin Pattern (Triangular Wave / Giant Lambda) · patron shark-fin · aleta de tiburon · patron de aleta de tiburon · onda lambda · onda triangular · shark fin pattern · triangular wave pattern · giant lambda wave
What parameters does the model use?
The following values are applied by the simulation engine to this entity. They govern activation kinematics in the 3D model and the real-time synthesis of the 12-lead electrocardiogram.
What parameters does the model use?
| Parameter | Model value |
|---|---|
| Occlusion severity | Total |
| Compatible territories | LMCA, LAD_VERY_PROX, LAD_PROX, LCX_PROX, RCA_PROX |
Frequently asked clinical questions
How is Shark-Fin Pattern (Triangular Wave / Giant Lambda) identified on the 12-lead ECG?
Giant monophasic fusion of QRS complex, ST segment and T wave into a single triangular deflection ('shark-fin'). Indicates massive hyperacute transmural ischemia with extreme risk of ventricular fibrillation and cardiogenic shock. The characteristic diagnostic waveforms are generated in real time across the simulated 12-lead tracing.
Which leads are critical for diagnostic confirmation?
The primary diagnostic leads are 12 derivaciones. Giant triangular monophasic fusion of QRS complex, ST segment, and T wave ("shark fin" pattern). In the simulator, these channels highlight the correlation with anatomical vectors.
What is the underlying electrophysiological or anatomical mechanism?
It represents transmural ischemia secondary to occlusion in the territory of the culprit coronary artery.
How can this condition be explored in the 3D simulator?
MioAtlas offers direct deep-link reproducibility with preconfigured parameters, allowing full 3D cardiac rotation and lead vector inspection.
How do you open this configuration?
The simulator encodes its full state in the query string, providing a stable and reproducible URL:
https://mioatlas.com/simulador/en/?syn=SCACEST&ter=LAD_VERY_PROX&phe=SHARK_FIN&ph=HIPERAGUDA
Related entities
Other entities in the same category within the catalog:
Sources and bibliographic references
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Wagner GS, Macfarlane P, Wellens H, et al. (2009). "AHA/ACCF/HRS recommendations for the standardization and interpretation of the electrocardiogram: Part VI: Acute ischemia/infarction". Circulation.
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Thygesen K, Alpert JS, Jaffe AS, et al. (2019). "Fourth Universal Definition of Myocardial Infarction (2018)". Eur Heart J.
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Rao SV, O'Donoghue ML, Ruel M, et al. (2025). "2025 ACC/AHA/ACEP/NAEMSP/SCAI Guideline for the Management of Patients With Acute Coronary Syndromes". Circulation.