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• W1894155282 abstract "Although degenerative aortic valve stenosis (AS) is common with increasing age, limited data exist regarding the prevalence and prognostic impact of its various valve area—gradient patterns in patients ≥80 years. To test this, echocardiograms were obtained in 542 randomly selected subjects aged ≥80 years recruited in the Belgium Cohort Study of the Very Elderly study (BFC80+). Subjects were divided into 3 groups: no or mild AS, moderate AS, and severe AS. Patients with severe AS were further stratified into those with high mean gradients (HG-AS) and those with paradoxically low mean gradients (LG-AS). Prevalence of moderate-to-severe AS was 14.7% and that of severe AS was 5.9%. In patients with severe AS, most (72%) exhibited paradoxical LG-AS. All patients with severe HG-AS were asymptomatic at the time of inclusion, whereas 48% of those with severe paradoxical LG-AS had significant symptoms. During follow-up, there were 2 aortic valve replacements and 230 deaths, of which 100 (43%) were of cardiovascular origin. Five-year overall survival rate was significantly worse in severe HG-AS than in any of the other groups (22 ± 14% vs 62 ± 2% in no or mild AS, 48 ± 7% in moderate AS, and 43 ± 10% in severe paradoxical LG-AS, p <0.01). Survival rate was similar among severe paradoxical LG-AS with and without low flow. In conclusion, in this large population-based sample of subjects ≥80 years, the prevalence of severe AS was 5.9%. Most of these subjects presented with the severe paradoxical LG-AS and a third of them were symptomatic. In this elderly community, severe HG-AS is a major determinant of prognosis, even in the absence of symptoms, whereas severe paradoxical LG-AS seems to behave similarly to moderate AS. Although degenerative aortic valve stenosis (AS) is common with increasing age, limited data exist regarding the prevalence and prognostic impact of its various valve area—gradient patterns in patients ≥80 years. To test this, echocardiograms were obtained in 542 randomly selected subjects aged ≥80 years recruited in the Belgium Cohort Study of the Very Elderly study (BFC80+). Subjects were divided into 3 groups: no or mild AS, moderate AS, and severe AS. Patients with severe AS were further stratified into those with high mean gradients (HG-AS) and those with paradoxically low mean gradients (LG-AS). Prevalence of moderate-to-severe AS was 14.7% and that of severe AS was 5.9%. In patients with severe AS, most (72%) exhibited paradoxical LG-AS. All patients with severe HG-AS were asymptomatic at the time of inclusion, whereas 48% of those with severe paradoxical LG-AS had significant symptoms. During follow-up, there were 2 aortic valve replacements and 230 deaths, of which 100 (43%) were of cardiovascular origin. Five-year overall survival rate was significantly worse in severe HG-AS than in any of the other groups (22 ± 14% vs 62 ± 2% in no or mild AS, 48 ± 7% in moderate AS, and 43 ± 10% in severe paradoxical LG-AS, p <0.01). Survival rate was similar among severe paradoxical LG-AS with and without low flow. In conclusion, in this large population-based sample of subjects ≥80 years, the prevalence of severe AS was 5.9%. Most of these subjects presented with the severe paradoxical LG-AS and a third of them were symptomatic. In this elderly community, severe HG-AS is a major determinant of prognosis, even in the absence of symptoms, whereas severe paradoxical LG-AS seems to behave similarly to moderate AS." @default.
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• W1894155282 date "2015-09-01" @default.
• W1894155282 modified "2023-10-14" @default.
• W1894155282 title "Prevalence and Prognostic Impact of Valve Area—Gradient Patterns in Patients ≥80 Years With Moderate-to-Severe Aortic Stenosis (from the Prospective BELFRAIL Study)" @default.
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• W1894155282 doi "https://doi.org/10.1016/j.amjcard.2015.05.062" @default.
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