New Diagnostic Score Identified Takotsubo Syndrome
A new five-item score can help identify Takotsubo syndrome in women before invasive cardiac procedures.
Updated on Sept. 21, 2026 in Heart Disease
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Researchers have developed a diagnostic score, called BioTAK, to help clinicians identify Takotsubo syndrome, a condition often triggered by severe emotional or physical stress. Published in 2026, the tool aims to better distinguish this condition from heart attacks in patients presenting with acute coronary syndrome.
Why it matters
Takotsubo syndrome and heart attacks share nearly identical symptoms, often requiring invasive cardiac catheterization to confirm a diagnosis. This score could improve accuracy and streamline care for the subset of patients affected by this syndrome.
In a study of 3,165 patients, researchers utilized a five-item diagnostic score that correctly classified nearly 90% of Takotsubo syndrome cases before catheterization. These results were published in 2026 as an initial validation of the tool.
The players
University of Zurich
A research university that served as the primary center for the BioTAK diagnostic study.
King's College London
An academic institution that provided support through the lead researcher.
University of Oxford
An academic institution that provided support through the study's co-first author.
The details
The BioTAK score uses machine learning to analyze five specific biomarkers, including indicators related to heart stress, anxiety regulation, plaque instability, and sex. Because Takotsubo syndrome accounts for 10% of women presenting with acute coronary syndrome and 4% of all suspected heart attacks, these markers help clinicians differentiate it from traditional coronary artery blockages without needing immediate invasive diagnostics.
Timeline
The study findings were published in the Euro Heart Journal in 2026.
Health Landscape
This diagnostic tool represents an effort to refine the standard of care for acute cardiac presentations within the Euro Heart Journal research framework. It shifts the focus from invasive investigation toward pre-procedural identification of this syndrome.
If you or a family member are being evaluated for chest pain, it may be worth asking your doctor if symptoms are typical of a heart attack or if other conditions like Takotsubo syndrome are suspected. Because this syndrome primarily affects postmenopausal women, those in this demographic should ensure their medical history, including recent severe emotional stress, is clearly documented.
The takeaway
Takotsubo syndrome is a distinct condition often misidentified as a heart attack, but new diagnostic tools are improving early identification. Patients who experience sudden, severe physical or emotional stress followed by cardiac symptoms should discuss these triggers thoroughly with their medical team.
Further reading
For more information on managing cardiac health, visit our Heart Disease section.
More information
View the complete results in the Euro Heart Journal peer-reviewed study.
Source note: This article includes information reported by Technology Networks.
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