A1 Journal article (refereed)
The electrocardiographic ‘triangular QRS-ST-T waveform’ pattern : a marker of severe haemodynamic compromise in Takotsubo syndrome : a case report (2020)


Joki, T., Nikus, K., & Laukkanen, J. (2020). The electrocardiographic ‘triangular QRS-ST-T waveform’ pattern : a marker of severe haemodynamic compromise in Takotsubo syndrome : a case report. European Heart Journal - Case Reports, 4(3), 1-6. https://doi.org/10.1093/ehjcr/ytaa076


JYU authors or editors


Publication details

All authors or editors: Joki, Tuukka; Nikus, Kjell; Laukkanen, Jari

Journal or series: European Heart Journal - Case Reports

eISSN: 2514-2119

Publication year: 2020

Volume: 4

Issue number: 3

Pages range: 1-6

Publisher: Oxford University Press

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1093/ehjcr/ytaa076

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68740


Abstract

Background
Takotsubo 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.


Keywords: ECG; heart diseases; case study

Free keywords: Takotsubo; QRS-ST-T waveform; high-risk ECG; ST elevation; cardiogenic shock; case report


Contributing organizations


Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 1


Last updated on 2021-09-08 at 16:10