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• W4385724430 abstract "Background The prevalence of calcific aortic stenosis and amyloid transthyretin cardiomyopathy (ATTR‐CM) increase with age, and they often coexist. The objective was to determine the prevalence of ATTR‐CM in patients with severe aortic stenosis and evaluate differences in presentations and outcomes of patients with concomitant ATTR‐CM undergoing transcatheter aortic valve implantation. Methods and Results Prospective screening for ATTR‐CM with Technetium 99 ‐3,3‐diphosphono‐1,2‐propanodicarboxylic acid bone scintigraphy was performed in 315 patients referred with severe aortic stenosis between August 2019 and August 2021. Myocardial Technetium 99 ‐3,3‐diphosphono‐1,2‐propanodicarboxylic acid tracer uptake was detected in 34 patients (10.8%), leading to a diagnosis of ATTR‐CM in 30 patients (Perugini ≥2: 9.5%). Age (85.7±4.9 versus 82.8±4.5; P =0.001), male sex (82.4% versus 57.7%; P =0.005), and prior carpal tunnel surgery (17.6% versus 4.3%; P =0.007) were associated with coexisting ATTR‐CM, as were ECG (discordant QRS voltage to left ventricular wall thickness [42% versus 12%; P <0.001]), echocardiographic (left ventricular ejection fraction 48.8±12.8 versus 58.4±10.8; P <0.001; left ventricular mass index, 144.4±45.8 versus 117.2±34.4g/m 2 ; P <0.001), and hemodynamic parameters (mean aortic valve gradient, 23.4±12.6 versus 35.5±16.6; P <0.001; mean pulmonary artery pressure, 29.5±9.7 versus 25.8±9.5; P =0.037). Periprocedural (cardiovascular death: hazard ratio [HR], 0.71 [95% CI, 0.04–12.53]; stroke: HR, 0.46 [95% CI, 0.03–7.77]; pacemaker implantation: HR, 1.54 [95% CI, 0.69–3.43]) and 1‐year clinical outcomes (cardiovascular death: HR, 1.04 [95% CI, 0.37–2.96]; stroke: HR, 0.34 [95% CI, 0.02–5.63]; pacemaker implantation: HR, 1.50 [95% CI, 0.67–3.34]) were similar between groups. Conclusions Coexisting ATTR‐CM was observed in every 10th elderly patient with severe aortic stenosis referred for therapy. While patients with coexisting pathologies differ in clinical presentation and echocardiographic and hemodynamic parameters, peri‐interventional risk and early clinical outcomes were comparable up to 1 year after transcatheter aortic valve implantation. REGISTRATION URL: https://www.clinicaltrials.gov . Unique identifier: NCT04061213." @default.
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• W4385724430 date "2023-08-15" @default.
• W4385724430 modified "2023-09-27" @default.
• W4385724430 title "Amyloid Transthyretin Cardiomyopathy in Elderly Patients With Aortic Stenosis Undergoing Transcatheter Aortic Valve Implantation" @default.
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• W4385724430 doi "https://doi.org/10.1161/jaha.123.030271" @default.
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