2005;19:33 9. 460. Dzavik V, Sleeper LA, Cocke TP, et al. Early revascularization is associ- ated 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 37. 461. Dauerman HL, Goldberg RJ, Malinski M, et al. Outcomes and early revascularization for patients > or = 65 years of age with cardiogenic shock. Am J Cardiol. 2001;87:844 8. 462. Dauerman HL, Ryan TJ Jr, Piper WD, et al. Outcomes of percutaneous coronary intervention among elderly patients in cardiogenic shock: a multicenter, decade-long experience. J Invasive Cardiol. 2003;15:380 4. 463. Kar B, Gregoric ID, Basra SS, et al. The percutaneous ventricular as- sist device in severe refractory cardiogenic shock. J Am Coll Cardiol. 2011;57:688 96. 464. Thiele H, Smalling RW, Schuler GC. Percutaneous left ventricular assist devices in acute myocardial infarction complicated by cardiogenic shock. Eur Heart J. 2007;28:2057 63. 465. De Backer D, Biston P, Devriendt J, et al. Comparison of dopa- mine and norepinephrine in the treatment of shock. N Engl J Med. 2010;362:779 89. 466. Robalino BD, Whitlow PL, Underwood DA, et al. Electrocardiograph- ic manifestations of right ventricular infarction. Am Heart J. 1989; 118:138 44. 467. Cheitlin MD, Armstrong WF, Aurigemma GP, et al. ACC/AHA/ASE 2003 guideline update for the clinical application of echocardiography: summary article: a report of the American College of Cardiology/Ameri- can Heart Association Task Force on Practice Guidelines (ACC/AHA/ ASE Committee to Update the 1997 Guidelines for the Clinical Applica- tion of Echocardiography). Circulation. 2003;108:1146 62. 468. Kinch JW, Ryan TJ. Right ventricular infarction. N Engl J Med. 1994;330:1211 7. 469. Wellens HJ. The value of the right precordial leads of the electrocardio- gram. N Engl J Med. 1999;340:381 3. 470. Tanimoto T, Imanishi T, Kitabata H, et al. 