ArticleEuropean heart journal. Case reports2020
The electrocardiographic 'triangular QRS-ST-T waveform' pattern: a marker of severe haemodynamic compromise in Takotsubo syndrome-a case report.
Article in European heart journal. Case reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 11 citations in OpenAlex.
- Shark Fin Sign in a Patient with Sepsis-induced Cardiomyopathy Associated with Retained Placenta: A Case Report and Review of the Literature.Internal medicine (Tokyo, Japan) · 2025Review
- Critical Convex-Type ST Elevation Correlate With Ventricular Tachyarrhythmia in Takotsubo Cardiomyopathy.Clinical cardiology · 2024Article
- Shark fin ECG pattern in a patient with acute ascending aortic dissection.International journal of emergency medicine · 2024Article
- Shark fin sign: A rare EKG finding in a patient with Takotsubo cardiomyopathy from influenza A infection.Clinical case reports · 2024Article
- Update of Takotsubo cardiomyopathy: Present experience and outlook for the future.International journal of cardiology. Heart & vasculature · 2022Review
- A 'shark'-masked electrocardiogram: case report of a Tako-Tsubo syndrome.European heart journal. Case reports · 2021Article
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3 authors at 3 institutions in 1 country.
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Abstract
backgroundTakotsubo cardiomyopathy is characterized by transient regional systolic dysfunction of the left ventricle, mimicking myocardial infarction. Although systolic left ventricular (LV) function normalizes in most cases, the outcome is not always favourable. Recently, a rare electrocardiogram (ECG) finding, lambda wave ST elevation or 'triangular QRS-ST-T waveform', was suggested as a possible marker of poor outcome in Takotsubo patients. CASE SUMMARY: After a brief episode of chest pain and shortness of breath, a 67-year-old woman developed cardiogenic shock. Her resting ECG showed widespread ST elevations, which soon evolved into a pattern of triangular QRS-ST-T waveforms in the inferior leads and V3-V6. Emergent coronary angiography was normal. The ejection fraction was 20% with apical ballooning and an LV thrombus. At 1-month follow-up, the patient was asymptomatic and the ECG showed only T-wave inversions. DISCUSSION: The triangular QRS-ST-T waveform ECG pattern has recently been introduced as a high-risk marker in the Takotsubo syndrome.
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