Why the study?
Dilated cardiomyopathy involves diastolic abnormalities and increased chamber stiffness, but the prognostic role of non-invasively assessed LV stiffness using 3D echocardiography required evaluation.
Does non-invasive assessment of LV stiffness using 3D echocardiography predict adverse outcomes in patients with non-ischemic dilated cardiomyopathy?
Population
121 consecutive patients with non-ischemic DCM
Comparison
Higher vs lower non-invasively assessed LV stiffness
Design
Prospective cohort study
Follow-up
19±11 months
Key result
Left ventricular stiffness index independently predicted death or heart failure hospitalization in non-ischemic dilated cardiomyopathy (adjusted HR 1.10; 95% CI 1.02-1.18; p=0.01).
Authors
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LV stiffness may refine prognostication when LVEF is nondiscriminatory in non-ischemic DCM; challenges systolic-centric consensus but remains hypothesis-generating.
Cohort (n=121)
Does non-invasive assessment of LV stiffness using 3D echocardiography predict adverse outcomes in patients with non-ischemic dilated cardiomyopathy?
Hazard Ratio: 1.11 (95% CI 1.04–1.19)
p-value: p=0.003
Non-invasive 3D echocardiographic assessment of LV stiffness independently predicts death or heart failure hospitalization in patients with non-ischemic dilated cardiomyopathy, whereas LV systolic dysfunction does not.
Vijiiac et al. (2026) conducted a cohort in non-ischemic dilated cardiomyopathy (n=121). Left ventricular stiffness index (LVSI) was evaluated on composite endpoint of death or heart failure decompensation requiring hospitalisation (HR 1.11, 95% CI 1.04-1.19, p=0.003). Left ventricular stiffness index independently predicted death or heart failure hospitalization in non-ischemic dilated cardiomyopathy (adjusted HR 1.10; 95% CI 1.02-1.18; p=0.01).
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