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  Persistent Long-Term Structural, Functional, and Metabolic Changes After Stress-Induced (Takotsubo) Cardiomyopathy

Scully, C., Rudd, A., Mezincescu, A., Wilson, H., Srinivasan, J., Horgan, G., et al. (2018). Persistent Long-Term Structural, Functional, and Metabolic Changes After Stress-Induced (Takotsubo) Cardiomyopathy. Circulation, 137(10), 1039-1048. doi:10.1161/CIRCULATIONAHA.117.031841.

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Scully, C, Autor
Rudd, A, Autor
Mezincescu, A, Autor
Wilson, H, Autor
Srinivasan, J, Autor
Horgan, G, Autor
Broadhurst, P, Autor
Newby, DE, Autor
Henning, A1, 2, 3, Autor           
Dawson, DK, Autor
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692              
3Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Zusammenfassung: BACKGROUND: Takotsubo cardiomyopathy is an increasingly recognized acute heart failure syndrome precipitated by intense emotional stress. Although there is an apparent rapid and spontaneous recovery of left ventricular ejection fraction, the long-term clinical and functional consequences of takotsubo cardiomyopathy are ill-defined. METHODS: In an observational case-control study, we recruited 37 patients with prior (>12-month) takotsubo cardiomyopathy, and 37 age-, sex-, and comorbidity-matched control subjects. Patients completed the Minnesota Living with Heart Failure Questionnaire. All participants underwent detailed clinical phenotypic characterization, including serum biomarker analysis, cardiopulmonary exercise testing, echocardiography, and cardiac magnetic resonance including cardiac 31P-spectroscopy. RESULTS: Participants were predominantly middle-age (64±11 years) women (97). Although takotsubo cardiomyopathy occurred 20 (range 13-39) months before the study, the majority (88) of patients had persisting symptoms compatible with heart failure (median of 13 [range 0-76] in the Minnesota Living with Heart Failure Questionnaire) and cardiac limitation on exercise testing (reduced peak oxygen consumption, 24±1.3 versus 31±1.3 mL/kg/min, P<0.001; increased VE/VCO2 slope, 31±1 versus 26±1, P=0.002). Despite normal left ventricular ejection fraction and serum biomarkers, patients with prior takotsubo cardiomyopathy had impaired cardiac deformation indices (reduced apical circumferential strain, ‒16±1.0 versus ‒23±1.5, P<0.001; global longitudinal strain, ‒17±1 versus ‒20±1, P=0.006), increased native T1 mapping values (1264±10 versus 1184±10 ms, P<0.001), and impaired cardiac energetic status (phosphocreatine/γ-adenosine triphosphate ratio, 1.3±0.1 versus 1.9±0.1, P<0.001). CONCLUSIONS: In contrast to previous perceptions, takotsubo cardiomyopathy has long-lasting clinical consequences, including demonstrable symptomatic and functional impairment associated with persistent subclinical cardiac dysfunction. Taken together our findings demonstrate that after takotsubo cardiomyopathy, patients develop a persistent, long-term heart failure phenotype.

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 Datum: 2017-112018-03
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1161/CIRCULATIONAHA.117.031841
BibTex Citekey: ScullyRMWSHBNHD2017
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Titel: Circulation
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 137 (10) Artikelnummer: - Start- / Endseite: 1039 - 1048 Identifikator: -