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Dunning J, Gao H, Chambers J, Moat N, Murphy G, Pagano D, et al. Aortic valve surgery: Marked increases in volume and significant decreases in mechanical valve use: An analysis of 41,227 patients over 5 years from the Society for Cardiothoracic Surgery in Great Britain and Ireland National database. <i>J Thorac Cardiovasc Surg<\/i> 2011; 142: 776\u2013782.e773.","DOI":"10.1016\/j.jtcvs.2011.04.048"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Iung B, Baron G, Butchart EG, Delahaye F, Gohlke-Barwolf C, Levang OW, et al. A prospective survey of patients with valvular heart disease in Europe: The Euro Heart Survey on Valvular Heart Disease. <i>Eur Heart J<\/i> 2003; 24: 1231\u20131243.","DOI":"10.1016\/S0195-668X(03)00201-X"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3. Osnabrugge RL, Mylotte D, Head SJ, Van Mieghem NM, Nkomo VT, LeReun CM, et al. 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Risk stratification for in-hospital mortality in acutely decompensated heart failure: Classification and regression tree analysis. <i>JAMA<\/i> 2005; 293: 572\u2013580.","DOI":"10.1001\/jama.293.5.572"},{"key":"7","doi-asserted-by":"crossref","unstructured":"7. Mebazaa A, Gayat E, Lassus J, Meas T, Mueller C, Maggioni A, et al. Association between elevated blood glucose and outcome in acute heart failure: Results from an international observational cohort. <i>J Am Coll Cardiol<\/i> 2013; 61: 820\u2013829.","DOI":"10.1016\/j.jacc.2012.11.054"},{"key":"8","doi-asserted-by":"crossref","unstructured":"8. Sato N, Kajimoto K, Asai K, Mizuno M, Minami Y, Nagashima M, et al. Acute decompensated heart failure syndromes (ATTEND) registry. A prospective observational multicenter cohort study: Rationale, design, and preliminary data. <i>Am Heart J<\/i> 2010; 159: 949\u2013955.e941.","DOI":"10.1016\/j.ahj.2010.03.019"},{"key":"9","doi-asserted-by":"crossref","unstructured":"9. Pierard S, de Meester C, Seldrum S, Pasquet A, Gerber B, Vancraeynest D, et al. Impact of preoperative symptoms on postoperative survival in severe aortic stenosis: Implications for the timing of surgery. <i>Ann Thorac Surg<\/i> 2014; 97: 803\u2013809.","DOI":"10.1016\/j.athoracsur.2013.08.059"},{"key":"10","doi-asserted-by":"crossref","unstructured":"10. Kawase Y, Kadota K, Nakamura M, Tada T, Hata R, Miyawaki H, et al. Low systolic blood pressure on admission predicts mortality in patients with acute decompensated heart failure due to moderate to severe aortic stenosis. <i>Circ J<\/i> 2014; 78: 2455\u20132459.","DOI":"10.1253\/circj.CJ-14-0712"},{"key":"11","doi-asserted-by":"crossref","unstructured":"11. Taniguchi T, Morimoto T, Shiomi H, Ando K, Kanamori N, Murata K, et al. 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Kang DH, Park SJ, Rim JH, Yun SC, Kim DH, Song JM, et al. Early surgery versus conventional treatment in asymptomatic very severe aortic stenosis. <i>Circulation<\/i> 2010; 121: 1502\u20131509.","DOI":"10.1161\/CIRCULATIONAHA.109.909903"},{"key":"17","doi-asserted-by":"crossref","unstructured":"17. Rosenhek R, Zilberszac R, Schemper M, Czerny M, Mundigler G, Graf S, et al. Natural history of very severe aortic stenosis. <i>Circulation<\/i> 2010; 121: 151\u2013156.","DOI":"10.1161\/CIRCULATIONAHA.109.894170"},{"key":"18","doi-asserted-by":"crossref","unstructured":"18. Nishimura RA, Otto CM, Bonow RO, Carabello BA, Erwin JP 3rd, Guyton RA, et al. 2014 AHA\/ACC Guideline for the management of patients with valvular heart disease: A report of the American College of Cardiology\/American Heart Association Task Force on Practice Guidelines. <i>Circulation<\/i> 2014; 129: e521\u2013e643.","DOI":"10.1161\/CIR.0000000000000031"},{"key":"19","doi-asserted-by":"crossref","unstructured":"19. 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Iron deficiency and cardiovascular disease. <i>Nat Rev Cardiol<\/i> 2015; 12: 659\u2013669.","DOI":"10.1038\/nrcardio.2015.109"},{"key":"23","doi-asserted-by":"crossref","unstructured":"23. McClellan WM, Flanders WD, Langston RD, Jurkovitz C, Presley R. Anemia and renal insufficiency are independent risk factors for death among patients with congestive heart failure admitted to community hospitals: A population-based study. <i>J Am Soc Nephrol<\/i> 2002; 13: 1928\u20131936.","DOI":"10.1097\/01.ASN.0000018409.45834.FA"},{"key":"24","doi-asserted-by":"crossref","unstructured":"24. Westenbrink BD, Voors AA, de Boer RA, Schuringa JJ, Klinkenberg T, van der Harst P, et al. Bone marrow dysfunction in chronic heart failure patients. <i>Eur J Heart Fail<\/i> 2010; 12: 676\u2013684.","DOI":"10.1093\/eurjhf\/hfq061"},{"key":"25","doi-asserted-by":"crossref","unstructured":"25. Vincentelli A, Susen S, Le Tourneau T, Six I, Fabre O, Juthier F, et al. Acquired von Willebrand syndrome in aortic stenosis. <i>N Engl J Med<\/i> 2003; 349 : 343\u2013349.","DOI":"10.1056\/NEJMoa022831"},{"key":"26","doi-asserted-by":"crossref","unstructured":"26. Anker SD, Steinborn W, Strassburg S. Cardiac cachexia. <i>Ann Med<\/i> 2004; 36: 518\u2013529.","DOI":"10.1080\/07853890410017467"},{"key":"27","doi-asserted-by":"crossref","unstructured":"27. Valentova M, von Haehling S, Bauditz J, Doehner W, Ebner N, Bekfani T, et al. Intestinal congestion and right ventricular dysfunction: A link with appetite loss, inflammation, and cachexia in chronic heart failure. <i>Eur Heart J<\/i> 2016; 37: 1684\u20131691.","DOI":"10.1093\/eurheartj\/ehw008"},{"key":"28","doi-asserted-by":"crossref","unstructured":"28. Hastie CE, Padmanabhan S, Slack R, Pell AC, Oldroyd KG, Flapan AD, et al. Obesity paradox in a cohort of 4880 consecutive patients undergoing percutaneous coronary intervention. <i>Eur Heart J<\/i> 2010; 31: 222\u2013226.","DOI":"10.1093\/eurheartj\/ehp317"},{"key":"29","doi-asserted-by":"crossref","unstructured":"29. Roberts WC, Roberts CC, Vowels TJ, Ko JM, Filardo G, Hamman BL, et al. Effect of body mass index on survival in patients having aortic valve replacement for aortic stenosis with or without concomitant coronary artery bypass grafting. <i>Am J Cardiol<\/i> 2011; 108: 1767\u20131771.","DOI":"10.1016\/j.amjcard.2011.09.010"},{"key":"30","doi-asserted-by":"crossref","unstructured":"30. Shah R, Gayat E, Januzzi JL Jr, Sato N, Cohen-Solal A, diSomma S, et al. Body mass index and mortality in acutely decompensated heart failure across the world: A global obesity paradox. <i>J Am Coll Cardiol<\/i> 2014; 63: 778\u2013785.","DOI":"10.1016\/j.jacc.2013.09.072"},{"key":"31","doi-asserted-by":"crossref","unstructured":"31. Hillege HL, Girbes AR, de Kam PJ, Boomsma F, de Zeeuw D, Charlesworth A, et al. Renal function, neurohormonal activation, and survival in patients with chronic heart failure. <i>Circulation<\/i> 2000; 102: 203\u2013210.","DOI":"10.1161\/01.CIR.102.2.203"},{"key":"32","doi-asserted-by":"crossref","unstructured":"32. Metra M, Cotter G, Gheorghiade M, Dei Cas L, Voors AA. The role of the kidney in heart failure. <i>Eur Heart J<\/i> 2012; 33: 2135\u20132142.","DOI":"10.1093\/eurheartj\/ehs205"},{"key":"33","doi-asserted-by":"crossref","unstructured":"33. Ohara T, Hashimoto Y, Matsumura A, Suzuki M, Isobe M. Accelerated progression and morbidity in patients with aortic stenosis on chronic dialysis. <i>Circ J<\/i> 2005; 69: 1535\u20131539.","DOI":"10.1253\/circj.69.1535"},{"key":"34","doi-asserted-by":"crossref","unstructured":"34. Thourani VH, Sarin EL, Kilgo PD, Lattouf OM, Puskas JD, Chen EP, et al. Short- and long-term outcomes in patients undergoing valve surgery with end-stage renal failure receiving chronic hemodialysis. <i>J Thorac Cardiovasc Surg<\/i> 2012; 144: 117\u2013123.","DOI":"10.1016\/j.jtcvs.2011.07.057"},{"key":"35","doi-asserted-by":"crossref","unstructured":"35. Thourani VH, Chowdhury R, Gunter RL, Kilgo PD, Chen EP, Puskas JD, et al. The impact of specific preoperative organ dysfunction in patients undergoing aortic valve replacement. <i>Ann Thorac Surg<\/i> 2013; 95: 838\u2013845.","DOI":"10.1016\/j.athoracsur.2012.09.035"},{"key":"36","doi-asserted-by":"crossref","unstructured":"36. Allende R, Webb JG, Munoz-Garcia AJ, de Jaegere P, Tamburino C, Dager AE, et al. Advanced chronic kidney disease in patients undergoing transcatheter aortic valve implantation: Insights on clinical outcomes and prognostic markers from a large cohort of patients. <i>Eur Heart J<\/i> 2014; 35: 2685\u20132696.","DOI":"10.1093\/eurheartj\/ehu175"},{"key":"37","doi-asserted-by":"crossref","unstructured":"37. Pibarot P, Dumesnil JG. Low-flow, low-gradient aortic stenosis with normal and depressed left ventricular ejection fraction. <i>J Am Coll Cardiol<\/i> 2012; 60: 1845\u20131853.","DOI":"10.1016\/j.jacc.2012.06.051"},{"key":"38","doi-asserted-by":"crossref","unstructured":"38. Gheorghiade M, Abraham WT, Albert NM, Greenberg BH, O\u2019Connor CM, She L, et al. Systolic blood pressure at admission, clinical characteristics, and outcomes in patients hospitalized with acute heart failure. <i>JAMA<\/i> 2006; 296: 2217\u20132226.","DOI":"10.1001\/jama.296.18.2217"},{"key":"39","doi-asserted-by":"crossref","unstructured":"39. Kociol RD, Horton JR, Fonarow GC, Reyes EM, Shaw LK, O\u2019Connor CM, et al. Admission, discharge, or change in B-type natriuretic peptide and long-term outcomes: Data from Organized Program to Initiate Lifesaving Treatment in Hospitalized Patients with Heart Failure (OPTIMIZE-HF) linked to Medicare claims. <i>Circ Heart Fail<\/i> 2011; 4: 628\u2013636.","DOI":"10.1161\/CIRCHEARTFAILURE.111.962290"},{"key":"40","doi-asserted-by":"crossref","unstructured":"40. Gheorghiade M, Abraham WT, Albert NM, Gattis Stough W, Greenberg BH, O\u2019Connor CM, et al. Relationship between admission serum sodium concentration and clinical outcomes in patients hospitalized for heart failure: An analysis from the OPTIMIZE-HF registry. <i>Eur Heart J<\/i> 2007; 28: 980\u2013988.","DOI":"10.1093\/eurheartj\/ehl542"},{"key":"41","doi-asserted-by":"crossref","unstructured":"41. Fonarow GC, Peacock WF, Phillips CO, Givertz MM, Lopatin M. 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