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Objective: Patients presenting for transcatheter aortic valve replacement are often in acute on chronic heart failure, as indicated by elevated N-terminal pro-B-type natriuretic peptide. Many believe that elevated N-terminal pro-B-type natriuretic peptide is an indication to treat medically, reserving surgery until the patient is medically optimized., Methods: A single-center transcatheter aortic valve replacement database was queried from December 2015 to November 2016 to identify patients undergoing transcatheter aortic valve replacement. Patients were divided into two cohorts based on preoperative N-terminal pro-B-type natriuretic peptide level. An analysis was then completed to assess outcomes such as length of intensive care unit stay, total length of stay, discharge to home, major complications, and mortality at 30 days., Results: There were 142 patients (median age = 80 years, 44% female) with preoperative N-terminal pro-B-type natriuretic peptide data included (range = 106-73,500 pg/mL). The mean Society of Thoracic Surgeons predicative risk of mortality was 8%, and 46 patients (32%) had N-terminal pro-B-type natriuretic peptide of greater than 3000 pg/mL. N-terminal pro-B-type natriuretic peptide of greater than 3000 pg/mL was associated only with increased intensive care unit length of stay of greater than 24 hours (35% vs 9%, P = 0.0001). There was no statistical difference between cohorts with regard to total length of stay of greater than 3 days (24% vs 15%, P = 0.2), discharge to home (74% vs 83%, P = 0.3), major complication, or mortality at 30 days., Conclusions: Transcatheter aortic valve replacement is an appropriate and effective treatment for patients with aortic stenosis presenting with high N-terminal pro-B-type natriuretic peptide and acute on chronic heart failure.