[1] Dégano IR, Elosua R, Marrugat J. Epidemiology of acute coronary syndromes in Spain: estimation of the number of cases and trends from 2005 to 2049. Rev Esp Cardiol (Engl Ed) 2013; 66: 472-481. doi:  10.1016/j.recesp.2013.01.019
[2] Krumholz HM, Gross CP, Peterson ED, et al. Is there evidence of implicit exclusion criteria for elderly subjects in randomized trials? Evidence from the GUSTO-1 study. Am Heart J 2003; 146: 839-847. doi:  10.1016/S0002-8703(03)00408-3
[3] Noman A, Balasubramaniam K, Alhous MHA, et al. Mortality after percutaneous coronary revascularization: prior cardiovascular risk factor control and improved outcomes in patients with diabetes mellitus. Catheter Cardiovasc Interv 2017; 89: 1195-1204. doi:  10.1002/ccd.26882
[4] De Servi S, Crimi G, Calabrò P, et al. Relationship between diabetes, platelet reactivity, and the SYNTAX score to one-year clinical outcome in patients with non-ST-segment elevation acute coronary syndrome undergoing percutaneous coronary intervention. EuroIntervention 2016; 12: 312-318. doi:  10.4244/EIJV12I3A51
[5] Piccolo R, Franzone A, Koskinas KC, et al. Effect of diabetes mellitus on frequency of adverse events in patients with acute coronary syndromes undergoing percutaneous coronary intervention. Am J Cardiol 2016; 118: 345-352. doi:  10.1016/j.amjcard.2016.05.005
[6] Cordero A, López-Palop R, Carrillo P, et al. Comparison of long-term mortality for cardiac diseases in patients with versus without diabetes mellitus. Am J Cardiol 2016; 117: 1088-1094. doi:  10.1016/j.amjcard.2015.12.057
[7] Kuhl J, Jörneskog G, Wemminger M, et al. Long-term clinical outcome in patients with acute coronary syndrome and dysglycaemia. Cardiovasc Diabetol 2015; 14: 120. doi:  10.1186/s12933-015-0283-3
[8] Ritsinger V, Saleh N, Lagerqvist B, et al. High event rate after a first percutaneous coronary intervention in patients with diabetes mellitus: results from the Swedish coronary angiography and angioplasty registry. Circ Cardiovasc Interv 2015; 8: e002328. http://www.ncbi.nlm.nih.gov/pubmed/26025219
[9] Donahoe SM, Stewart GC, McCabe CH, et al. Diabetes and mortality following acute coronary syndromes. JAMA 2007; 298: 765-775. doi:  10.1001/jama.298.7.765
[10] Savonitto S, Morici N, Cavallini C, et al. One-year mortality in elderly adults with non-ST-elevation acute coronary syndrome: effect of diabetic status and admission hyperglycemia. J Am Geriatr Soc 2014; 62: 1297-1303. doi:  10.1111/jgs.12900
[11] Gual M, Ariza-Solé A, Formiga F, et al. Diabetes mellitus is not independently associated with mortality in elderly patients with ST-segment elevation myocardial infarction. Insights from the Codi Infart registry. Coron Artery Dis 2020; 31: 1-6. doi:  10.1097/MCA.0000000000000821
[12] Gual M, Formiga F, Ariza-Solé A, et al. Diabetes mellitus, frailty and prognosis in very elderly patients with acute coronary syndromes. Aging Clin Exp Res 2019; 31: 1635-1643. doi:  10.1007/s40520-018-01118-x
[13] Aissaoui N, Puymirat E, Tabone X, et al. Improved outcome of cardiogenic shock at the acute stage of myocardial infarction: a report from the USIK 1995, USIC 2000, and FAST-MI French nationwide registries. Eur Heart J 2012; 33: 2535-2543. doi:  10.1093/eurheartj/ehs264
[14] Hochman JS, Buller CE, Sleeper LA, et al. Cardiogenic shock complicating acute myocardial infarction--etiologies, management and outcome: a report from the SHOCK Trial Registry. Should we emergently revascularize occluded coronaries for cardiogenic shock? J Am Coll Cardiol 2000; 36: 1063-1070. http://www.ncbi.nlm.nih.gov/pubmed/10985706?dopt=Abstract
[15] Kolte D, Khera S, Aronow WS, et al. Trends in incidence, management, and outcomes of cardiogenic shock complicating ST-elevation myocardial infarction in the United States. J Am Hear Assoc 2014; 3: e000590. doi:  10.1161/jaha.113.000590
[16] Sánchez-Salado JC, Burgos V, Ariza-Solé A, et al. Trends in cardiogenic shock management and prognostic impact of type of treating center. Rev Esp Cardiol (Engl Ed) 2020; 73: 546-553. doi:  10.1016/j.recesp.2019.10.009
[17] Dzavik V, Sleeper LA, Cocke TP, et al. Early revascularization is associated with improved survival in elderly patients with acute myocardial infarction complicated by cardiogenic shock: a report from the SHOCK Trial Registry. Eur Heart J 2003; 24: 828-837. doi:  10.1016/S0195-668X(02)00844-8
[18] Aissaoui N, Puymirat E, Juilliere Y, et al. Fifteen-year trends in the management of cardiogenic shock and associated 1-year mortality in elderly patients with acute myocardial infarction: the FAST-MI programme. Eur J Heart Fail 2016; 18: 1144- 1152. doi:  10.1002/ejhf.585
[19] Rogers PA, Daye J, Huang H, et al. Revascularization improves mortality in elderly patients with acute myocardial infarction complicated by cardiogenic shock. Int J Cardiol 2014; 172: 239-241. doi:  10.1016/j.ijcard.2013.12.311
[20] Lindholm MG, Boesgaard S, Torp-Pedersen C, et al. Diabetes mellitus and cardiogenic shock in acute myocardial infarction. Eur J Heart Fail 2005; 7: 834-839. doi:  10.1016/j.ejheart.2004.09.007
[21] Echouffo-Tcheugui JB, Kolte D, Khera S, et al. Diabetes mellitus and cardiogenic shock complicating acute myocardial infarction. Am J Med 2018; 131: 778-786.e1. doi:  10.1016/j.amjmed.2018.03.004
[22] Registro de altas de hospitalización: CMBD del Sistema Nacional de Salud. Glosario de términos y definiciones. Portal estadístico SNS Web site. https://pestadistico.inteligenciadegestion.msssi.es/publicoSNS/comun/DescargaDocumento.aspx?IdNodo=6415 (accessed January 16, 2018).
[23] Bernal JL, Barrabés JA, Íñiguez A, et al. Clinical and administrative data on the research of acute coronary syndrome in Spain. Minimum Basic Data Set Validity. Rev Esp Cardiol (Engl Ed) 2019; 72: 56-62. doi:  10.1016/j.recesp.2018.01.007
[24] Averill RF, McCullough EC, Goldfield N, et al. APR-DRG Definition Manual v.31.0 2013. APR-DRG Definition Manual Web site. https://www.hcup-us.ahrq.gov/db/nation/nis/grp031_aprdrg_meth_ovrview.pdf (accessed Februar 28, 2020).
[25] Íñiguez Romo A, Bertomeu Martínez V, Rodríguez Padial L, et al. The RECALCAR Project. Healthcare in the cardiology units of the Spanish National Health System, 2011 to 2014. Rev Esp Cardiol (Engl Ed) 2017; 70: 567-575. doi:  10.1016/j.recesp.2016.12.031
[26] Worner F, San Román A, Sánchez PL, et al. The healthcare of patients with acute and critical heart disease. Position of the Spanish Society of Cardiology. Rev Esp Cardiol (Engl Ed) 2016; 69: 239-242. doi:  10.1016/j.recesp.2015.07.018
[27] 2015 Condition: specific measures updates and specifications report hospital-level 30-day risk-standardized mortality measures. Acute Myocardial Infarction, 9th Edition; Yale New Haven Health Services Corporation/Center for Outcomes Research & Evaluation (YNHHSC/CORE). Prepared For: Centers for Medicare & Medicaid Services (CMS).
[28] Goldstein H, Spiegelhalter DJ.[League tables and their limitations: statistical aspects of institutional performance]. J R Stat Soc 1996; 159: 385-444.[In Spanish].
[29] Normand SLT, Glickman ME, Gatsonis C.[Statistical methods for profiling providers of medical care: issues and applications]. J Am Stat Assoc 1997; 92: 803-814.[In Spanish].
[30] Shahian DM, Normand SL, Torchiana DF, et al. Cardiac surgery report cards: comprehensive review and statistical critique. Ann Thorac Surg 2001; 72: 2155-2168. doi:  10.1016/S0003-4975(01)03222-2
[31] Pope GC, Ellis RP, Ash AS, et al. Diagnostic cost group hierarchical condition category models for medicare risk adjustment. Final report to the Health Care Financing Administration under contract number 500-95-048. Health Economics Research, Inc. Waltham, MA, USA.
[32] Charlson ME, Pompei P, Ales KL, et al. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chronic Dis 1987; 40: 373-383. doi:  10.1016/0021-9681(87)90171-8
[33] Canadian Institute for Health Information. Hospital Standardized Mortality Ratio (HSMR) Web site. https://secure.cihi.ca/free_products/HSMR_hospital_mortality_trends_in_canada.pdf (accessed Februar 28, 2020).
[34] Na SJ, Park TK, Lee GY, et al. Impact of a cardiac intensivist on mortality in patients with cardiogenic shock. Int J Cardiol 2017; 244: 220-225. doi:  10.1016/j.ijcard.2017.06.082
[35] Ponikowski P, Voors AA, Anker SD, et al. 2016 ESC guidelines for the diagnosis and treatment of acute and chronic heart failure: the Task Force for the diagnosis and treatment of acute and chronic heart failure of the European Society of Cardiology (ESC) Developed with the special contribution of the Heart Failure Association (HFA) of the ESC. Eur Heart J 2016; 37: 2129-2200. doi:  10.1093/eurheartj/ehw128
[36] Ariza-Solé A, Alegre O, Elola FJ, et al. Management of myocardial infarction in the elderly. Insights from Spanish Minimum Basic Data Set. Eur Heart J Acute Cardiovasc Care 2019; 8: 242-251. doi:  10.1177/2048872617719651
[37] Krumholz HM, Wang Y, Mattera JA, et al. An administrative claims model suitable for profiling hospital performance based on 30-day mortality rates among patients with an acute myocardial infarction. Circulation 2006; 113: 1683-1692. doi:  10.1161/CIRCULATIONAHA.105.611186
[38] van Walraven C, Jennings A, Taljaard M, et al. Incidence of potentially avoidable urgent readmissions and their relation to all-cause urgent readmissions. CMAJ 2011; 183: E1067-E1072. doi:  10.1503/cmaj.110400