Abstract 13435: Deranged Intra-Cardiac Blood Flow Components and Kinetic Energy in Dilated Cardiomyopathy Are an Additional Marker of Disease Severity and Correlate With Established Markers of Prognosis
| العنوان: | Abstract 13435: Deranged Intra-Cardiac Blood Flow Components and Kinetic Energy in Dilated Cardiomyopathy Are an Additional Marker of Disease Severity and Correlate With Established Markers of Prognosis |
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| المؤلفون: | Victoria Stoll, Aaron Hess, Eylem Levelt, Jonatan Eriksson, Petter Dyverfeldt, Tino Ebbers, Saul Myerson, Carl-Johan Carlhäll, Stefan Neubauer |
| المصدر: | Circulation. 132 |
| بيانات النشر: | Ovid Technologies (Wolters Kluwer Health), 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Physiology (medical), cardiovascular system, cardiovascular diseases, Cardiology and Cardiovascular Medicine |
| الوصف: | Introduction: Heart failure (HF) due to dilated cardiomyopathy (DCM) is a complex syndrome in which numerous cellular, mechanical and flow processes/interactions become deranged. Insights into derangement of left ventricular intra-cardiac flow patterns and kinetic energy (KE) are now afforded by the use of 4D flow CMR. Previous studies have found derangements of intra-ventricular flow components and KE within DCM patients compared to healthy volunteers. Hypothesis: We hypothesised that increasing derangement in 4D flow measures would relate to: 1) decreased mechanical cardiac function, as assessed by myocardial strain, 2) increased levels of biochemical remodelling markers and 3) worsening patient symptoms and functional capacity. Methods: 26 idiopathic DCM patients (69% male, mean age 55±2 yr, LVEF 35±2%) and 10 controls (70% male, mean age 57±4yr, LVEF 68±1.2%) were assessed with 3T CMR. Results: The LV volume was divided into 4 functional components; direct flow (DF), delayed ejection flow (DEF), retained inflow (RI) and residual volume (RV). Compared to controls DCM’s had significantly decreased DF (11±1% vs 38±2%) and increased RV (51±2% vs 31±1%) (fig a). The KE at end diastole differed significantly for all flow components between groups (fig b). Circumferential strain was significantly impaired in DCM’s vs controls (-9.9±0.8% vs -19.7±0.5%, p Conclusions: DCM patients demonstrated less efficient blood flow patterns and deranged KE profiles. The greater the derangement of flow parameters from normal, the worse the myocardial strain, BNP, 6MWT and patient symptoms. This study suggests that flow parameter derangements are novel biomarkers of disease severity in DCM, correlating with established markers of prognosis such as BNP and 6MWT and may become useful in monitoring novel therapies and predicting prognosis. |
| تدمد: | 1524-4539 0009-7322 |
| DOI: | 10.1161/circ.132.suppl_3.13435 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a9795bc44e61ba55c6f0c0f41e07d073 https://doi.org/10.1161/circ.132.suppl_3.13435 |
| رقم الانضمام: | edsair.doi...........a9795bc44e61ba55c6f0c0f41e07d073 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15244539 00097322 |
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| DOI: | 10.1161/circ.132.suppl_3.13435 |