Impact and management of left ventricular function on the prognosis of Takotsubo syndrome

Background Early research has proposed that patients with Takotsubo syndrome (TTS) could have a higher mortality rate than the general population. Our study was conducted to determine the short- and long-term outcome of TTS patients associated with a significantly compromised left ventricular functi...

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Hauptverfasser: El-Battrawy, Ibrahim (VerfasserIn) , Ansari, Uzair (VerfasserIn) , Lang, Siegfried (VerfasserIn) , Behnes, Michael (VerfasserIn) , Schramm, Katja (VerfasserIn) , Fastner, Christian (VerfasserIn) , Zhou, Xiao-Bo (VerfasserIn) , Kuschyk, Jürgen (VerfasserIn) , Tueluemen, Erol (VerfasserIn) , Röger, Susanne (VerfasserIn) , Borggrefe, Martin (VerfasserIn) , Akın, Ibrahim (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2017
In: European journal of clinical investigation
Year: 2017, Jahrgang: 47, Heft: 7, Pages: 477-485
ISSN:1365-2362
DOI:10.1111/eci.12768
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1111/eci.12768
Verlag, Volltext: https://onlinelibrary-wiley-com.ezproxy.medma.uni-heidelberg.de/doi/abs/10.1111/eci.12768
Volltext
Verfasserangaben:Ibrahim El‐Battrawy, Uzair Ansari, Siegfried Lang, Michael Behnes, Katja Schramm, Christian Fastner, Xiaobo Zhou, Jürgen Kuschyk, Erol Tülümen, Susanne Röger, Martin Borggrefe and Ibrahim Akin

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520 |a Background Early research has proposed that patients with Takotsubo syndrome (TTS) could have a higher mortality rate than the general population. Our study was conducted to determine the short- and long-term outcome of TTS patients associated with a significantly compromised left ventricular function on hospital admission. Materials and methods Our institutional database constituted a collective of 112 patients diagnosed with TTS between 2003 and 2015. The patients were classified into two groups based on the left ventricular ejection fraction (LVEF), with those presenting with a LVEF > 35% on admission categorized into one group (n = 65, 58%) and those presenting with LVEF ≤ 35% (n=47, 42%) categorized into another group. The endpoint was the all-cause of mortality over a mean follow-up of 1529 ± 1121 days. Results Preliminary results indicated that patients with an EF ≤ 35% had a significantly greater risk of developing life-threatening arrhythmias, and were much more likely to suffer from cardiogenic shock. Patients often required varying forms of mechanical respiratory support. The in-hospital mortality, 30-day mortality, 1-year mortality and ongoing long-term mortality was significantly higher in TTS patients with an EF ≤ 35%. In a multivariate Cox regression analysis, an EF ≤ 35% (HR 3·3, 95% CI: 1·2-9·2, P < 0·05) was identified as a strong independent predictor of the primary endpoint. Conclusions In-hospital events as well as short- and long-term mortality rates among TTS patients diagnosed with a significantly reduced LVEF on admission were significantly higher. There is an urgent need for randomized trials, which could help define uniform clinical management strategies for high risk TTS patients. 
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