Observational studyESC heart failure2026
Long-term prognosis in Takotsubo syndrome compared to heart failure: observations from a global federated research network.
Observational study in ESC heart failure, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Age- and sex-based risk stratification in takotsubo syndrome: a Japanese nationwide registry study.Frontiers in cardiovascular medicine · 2026Article
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionTo compare long-term outcomes of patients with Takotsubo syndrome (TTS) and heart failure (HF).
methodsThis retrospective observational study used the TriNetX global federated research network. Adult patients (≥18 years) discharged with a diagnosis of TTS (ICD-10-CM I51.81) or HF (I50.x) between 2018 and 2022 were identified. Primary outcomes were 3-year risk of all-cause death, major adverse cardiovascular events (MACE; myocardial infarction or ischaemic stroke), and acute HF. Secondary outcomes included myocardial infarction, ischaemic stroke, ventricular arrhythmias (ventricular tachycardia), malignant arrhythmias (ventricular fibrillation or cardiac arrest), and new-onset atrial fibrillation (AF). Cox proportional hazards models estimated hazard ratios (HRs) with 95% confidence intervals (CIs) before and after 1:1 propensity score matching (PSM). Subgroup analyses were performed by HF phenotype, age (≥65 vs <65 years), and mental health status.
resultsThe study included 2240 patients with TTS (mean age 62.6 ± 17.3 years; 73.7% female) and 265 564 patients with HF (69.3 ± 14.7 years; 45.8% female). After PSM, TTS was associated with a lower risk of acute HF (HR 0.622, 95% CI 0.539-0.717), ventricular arrhythmias (HR 0.637, 95% CI 0.441-0.919), malignant arrhythmias (HR 0.656, 95% CI 0.571-0.754), new-onset AF (HR 0.672, 95% CI 0.517-0.875), and myocardial infarction (HR 0.818, 95% CI 0.687-0.974), with no significant differences in the remaining outcomes. Differences were greater when TTS was compared with heart failure with reduced ejection fraction.
conclusionsTTS is associated with lower risk of adverse events than HF. Further research is needed on mental health in its pathogenesis and prognosis.
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