Circulation. Cardiovascular imaging · 2023
Predictors of Major Adverse Cardiovascular Events in Patients With Moderate Aortic Stenosis: Implications for Aortic Valve Replacement.
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Howard Travis, Majmundar Monil, Sarin Shlok, Kumar Ashish, Ajay Abhishek, Krishnaswamy Amar, Reed Grant W, Harb Serge C, Harmon Evan, Dykun Iryna, Ghandakly Elizabeth, Kapadia Samir R, Kalra Ankur, Puri Rishi
Аннотация
BACKGROUND: Although the prognosis and management of severe aortic stenosis has been extensively studied, the risk stratification and outcomes of patients with moderate aortic stenosis remain elusive.
METHODS: This study included 674 patients from the Cleveland Clinic Health System with moderate aortic stenosis (aortic valve area, 1-1.5 cm2; mean gradient, 20-40 mm Hg; and peak velocity <4 m/s) and an NT-proBNP (N-terminal pro-B-type natriuretic peptide) level within 3 months of index diagnosis. The primary outcome of major adverse cardiovascular events (defined as the composite outcome of progression to severe aortic stenosis requiring aortic valve replacement, heart failure hospitalization, or death) was extracted from the electronic medical record.
RESULTS: The mean age was 75.3±12 years, and 57% were men. During a median follow-up of 316 days, the composite end point occurred in 305 patients. There were 132 (19.6%) deaths, 144 (21.4%) heart failure hospitalizations, and 114 (16.9%) patients underwent aortic valve replacement. Elevated NT-proBNP (1.41 [95% CI, 1.01-1.95]; P=0.048), diabetes (1.46 [95% CI, 1.08-1.96]; P=0.01), elevated averaged mitral valve E/e' ratio (hazard ratio, 1.57 [95% CI, 1.18-2.10]; P<0.01), and presence atrial fibrillation at the time of index echocardiogram (hazard ratio, 1.83 [95% CI, 1.15-2.91]; P=0.01) were each independently associated with an increased hazard for the composite outcome and when taken collectively, each of these factors incrementally increased risk.
CONCLUSIONS: These results further elucidate the relatively poor short-medium term outcomes and risk stratification of patients with moderate aortic stenosis, supporting randomized trials assessing the efficacy of transcatheter aortic valve replacement in this population.
METHODS: This study included 674 patients from the Cleveland Clinic Health System with moderate aortic stenosis (aortic valve area, 1-1.5 cm2; mean gradient, 20-40 mm Hg; and peak velocity <4 m/s) and an NT-proBNP (N-terminal pro-B-type natriuretic peptide) level within 3 months of index diagnosis. The primary outcome of major adverse cardiovascular events (defined as the composite outcome of progression to severe aortic stenosis requiring aortic valve replacement, heart failure hospitalization, or death) was extracted from the electronic medical record.
RESULTS: The mean age was 75.3±12 years, and 57% were men. During a median follow-up of 316 days, the composite end point occurred in 305 patients. There were 132 (19.6%) deaths, 144 (21.4%) heart failure hospitalizations, and 114 (16.9%) patients underwent aortic valve replacement. Elevated NT-proBNP (1.41 [95% CI, 1.01-1.95]; P=0.048), diabetes (1.46 [95% CI, 1.08-1.96]; P=0.01), elevated averaged mitral valve E/e' ratio (hazard ratio, 1.57 [95% CI, 1.18-2.10]; P<0.01), and presence atrial fibrillation at the time of index echocardiogram (hazard ratio, 1.83 [95% CI, 1.15-2.91]; P=0.01) were each independently associated with an increased hazard for the composite outcome and when taken collectively, each of these factors incrementally increased risk.
CONCLUSIONS: These results further elucidate the relatively poor short-medium term outcomes and risk stratification of patients with moderate aortic stenosis, supporting randomized trials assessing the efficacy of transcatheter aortic valve replacement in this population.