Why the study?
Whether Takotsubo syndrome should be classified within myocardial infarction with non-obstructive coronary arteries remains controversial.
Does Takotsubo syndrome have a different clinical profile and prognosis compared to non-TTS MINOCAs?
Population
1,015 TTS patients and 1,080 non-TTS MINOCAs patients from prospective registries
Comparison
Takotsubo syndrome vs non-TTS MINOCAs
Design
Cohort study based on two prospective registries
Follow-up
Median 32.4 months
Key result
Takotsubo syndrome was associated with a significantly lower risk of major adverse cardiovascular events (HR 0.59) compared to non-Takotsubo MINOCA over a median follow-up of 32.4 months.
Authors
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Associated lower MACE risk in Takotsubo vs non-Takotsubo MINOCA; leaves open whether this supports distinct entity classification.
Cohort (n=2,095)
Yes
Does Takotsubo syndrome have a different clinical profile and prognosis compared to non-TTS MINOCAs?
Hazard Ratio: 0.59 (95% CI 0.42–0.83)
Absolute Event Rate: 6.3% vs 17.4%
p-value: p=0.002
Takotsubo syndrome presents with a more aggressive acute phase but better long-term cardiovascular prognosis compared to non-TTS MINOCAs, supporting its classification as a distinct clinical entity.
López‐País et al. (2022) conducted a cohort in Takotsubo syndrome and MINOCA (n=2,095). Takotsubo syndrome vs. Non-Takotsubo MINOCA was evaluated on Major adverse cardiovascular events (MACE) (HR 0.59, 95% CI 0.42-0.83, p=0.002). Takotsubo syndrome was associated with a significantly lower risk of major adverse cardiovascular events (HR 0.59) compared to non-Takotsubo MINOCA over a median follow-up of 32.4 months.