Do all patients with pros- thetic valve endocarditis need surgery? Interact Cardiovasc Thorac Surg. 2012;15:1057 61. 32. Cowgill LD, Addonizio VP, Hopeman AR, et al. A practical approach to prosthetic valve endocarditis. Ann Thorac Surg. 1987;43:450 7. 33. Ribera E, G mez-Jimenez J, Cortes E, et al. Effectiveness of cloxacillin with and without gentamicin in short-term therapy for right-sided Staphylo- coccus aureus endocarditis. A randomized, controlled trial. Ann Intern Med. 1996;125:969 74. CLINICAL STATEMENTS AND GUIDELINES 34. Rabkin DG, Mokadam NA, Miller DW, et al. Long-term outcome for the surgical treatment of infective endocarditis with a focus on intravenous drug users. Ann Thorac Surg. 2012;93:51 7. 35. Hubbell G, Cheitlin MD, Rapaport E. Presentation, management, and follow-up evaluation of infective endocarditis in drug addicts. Am Heart J. 1981;102:85 94. 36. Wang K, Gobel F, Gleason DF, et al. Complete heart block complicating bacterial endocarditis. Circulation. 1972;46:939 47. 37. Middlemost S, Wisenbaugh T, Meyerowitz C, et al. A case for early surgery in native left-sided endocarditis complicated by heart failure: results in 203 patients. J Am Coll Cardiol. 1991;18:663 7. 38. Chan K-L. Early clinical course and long-term outcome of patients with infective endocarditis complicated by perivalvular abscess. CMAJ. 2002;167:19 24. 39. Jault F, Gandjbakhch I, Chastre JC, et al. Prosthetic valve endocarditis with ring abscesses. Surgical management and long-term results. J Thorac Car- diovasc Surg. 1993;105:1106 13. 40. Anguera I, Miro JM, Vilacosta I, et al. Aorto-cavitary fistulous tract forma- tion in infective endocarditis: clinical and echocardiographic features of 76 cases and risk factors for mortality. Eur Heart J. 2005;26:288 97. 41. Habib G, Avierinos J-F, Thuny F. Aortic valve endocarditis: is there an opti- mal surgical timing? Curr Opin Cardiol. 2007;22:77 83. 42. Spiliopoulos K, Haschemi A, Fink G, et al. 