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Surgical-Site Infection After Cardiac Surgery: Incidence, Microbiology, and risk Factors

Published online by Cambridge University Press:  21 June 2016

Didier Lepelletier*
Affiliation:
Bacteriology and Infection Control Laboratory and the Department of Cardiac Surgery, Laennec Hospital, Nantes, France
Stéphanie Perron
Affiliation:
Bacteriology and Infection Control Laboratory and the Department of Cardiac Surgery, Laennec Hospital, Nantes, France
Philippe Bizouarn
Affiliation:
Bacteriology and Infection Control Laboratory and the Department of Cardiac Surgery, Laennec Hospital, Nantes, France
Jocelyne Caillon
Affiliation:
Bacteriology and Infection Control Laboratory and the Department of Cardiac Surgery, Laennec Hospital, Nantes, France
Henri Drugeon
Affiliation:
Bacteriology and Infection Control Laboratory and the Department of Cardiac Surgery, Laennec Hospital, Nantes, France
Jean-Luc Michaud
Affiliation:
Bacteriology and Infection Control Laboratory and the Department of Cardiac Surgery, Laennec Hospital, Nantes, France
Daniel Duveau
Affiliation:
Bacteriology and Infection Control Laboratory and the Department of Cardiac Surgery, Laennec Hospital, Nantes, France
*
Laboratory of Bacteriology and Infection Control, Hôpital Laënnec, Boulevard J Monod, St Herblain, 44 000 Nantes, France[email protected]

Abstract

Objective:

To identify risk factors associated with surgical-site infection according to the depth of infection, the cardiac procedure, and the National Nosocomial Infections Surveillance System risk index.

Design:

Prospective survey conducted during a 12-month period.

Setting:

A 48-bed cardiac surgical department in a teaching hospital.

Patients:

Patients admitted for cardiac surgery between February 2002 and January 2003.

Results:

Surgical-site infections were diagnosed in 3% of the patients (38 of 1,268). Of the 38 surgical-site infections, 20 were superficial incisional infections and 18 were mediastinitis for incidence rates of 1.6% and 1.4%, respectively. Cultures were positive in 28 cases and the most commonly isolated pathogen was Staphylococcus. A National Nosocomial Infections Surveillance System risk index score of 2 or greater was associated with a risk of surgical-site infection (relative risk, 2.4; P < .004). Heart transplantation, mechanical circulatory assistance, coronary artery bypass graft with the use of internal mammary artery, and reoperation for cardiac tamponade or pericard effusion were independent risk factors associated with surgical-site infection.

Conclusions:

Data surveillance using incidence rates stratified by cardiac procedure and type of infection is relevant to improving infection control efforts. Risk factors in patients who developed superficial infection were different from those in patients who developed mediastinitis. Coronary artery bypass graft using internal mammary artery was associated with a high risk of surgical-site infection, and independent factors such as reoperation for cardiac tamponade or pericard effusion increased the risk of infection.

Type
Original Articles
Copyright
Copyright © The Society for Healthcare Epidemiology of America 2005

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References

1.Ottino, G, Paulis, RD, Pansini, S, et al. Major surgical site infection after open heart surgery: a multivariate analysis of risk factors in 2,579 consecutive operative procedures. Ann Thome Surg 1987;44:173179.CrossRefGoogle Scholar
2.Loop, FD, Lytle, BW, Cosgrove, DM, et al. Sternal wound complications after isolated coronary artery bypass grafting: early and late mortality, and cost of care. Ann Thorac Surg 1990;49:179187.CrossRefGoogle ScholarPubMed
3.Kutsal, A, Ibrisim, E, Catav, Z. Mediastinitis after open heart surgery: analysis of risk factors and management. J Cardiovasc Surg 1991;32:3841.Google Scholar
4.Sisto, T, Laurikka, J, Tarkka, MR. Ceftriaxone vs cefuroxime for infection prophylaxis in coronary bypass surgery. Stand J Thorac Cardiovasc Surg 1994;28:143148.Google ScholarPubMed
5.Blanchard, A, Hurni, M, Ruchat, P, Stumpe, F, Fisher, A, Sadeghi, H. Incidence of deep and superficial sternal infection after open heart surgery: a ten year retrospective study from 1981 to 1991. Eur J Car-diothorac Surg 1995;9:153157.CrossRefGoogle Scholar
6.Zacharias, A, Habib, R. Factors predisposing to median sternotomy complications: deep versus superficial infection. Chest 1996;110:11731178.CrossRefGoogle Scholar
7.Brown, IW, Moor, GF, Hummel, BW, Marshall, WG, Collins, JP. Toward further reducing wound infections in cardiac operations. Ann Thorac Surg 1996;62:17831789.CrossRefGoogle ScholarPubMed
8.The Parisian Mediastinitis Study Group. Risk factors for deep sternal wound infection after sternotomy: a prospective, multicenter study. J Thorac Cardiovasc Surg 1996;111:12001207.Google Scholar
9.Antunes, PE, Bernardo, JE, Eugenio, L, Ferrao de Oliveira, J, Antunes, MJ. Mediastinitis after aorto-coronary bypass surgery. Eur J Cardiothorac Surg 1997;12:443449.CrossRefGoogle ScholarPubMed
10.Stahle, E, Tammelin, A, Bergstrom, R, Hambreus, A, Nystrom, SO, Hansson, HE. Surgical site complications: incidence, microbiology and risk factors. Eur J Cardiothorac Surg 1997;11:11461153.CrossRefGoogle Scholar
11.El Oakley, RM, Paul, E, Wong, PS, et al. Mediastinitis in patients undergoing cardiopulmonary bypass: risk analysis and midterm results. J Cardiovasc Surg 1997;38:595600.Google Scholar
12.Ridderstolp, L, Gill, H, Granfeldt, H, Ahlfeldt, H, Rutberg, H. Superficial and deep surgical site complications: incidence, risk factors and mortality. Eur J Cardiothorac Surg 2001;20:11681175.CrossRefGoogle Scholar
13.Baskett, RJ, MacDougall, CE, Ross, DBG. Is mediastinitis a preventable complication? A 10-year review. Ann Thorac Surg 1999;67:462465.Google Scholar
14.Gardlund, B, Bitkover, CY, Vaage, J. Postoperative mediastinitis in cardiac surgery: microbiology and pathogenesis. Eur J Cardiothorac Surg 2002;21:825830.CrossRefGoogle ScholarPubMed
15.Lu, JCY, Grayson, AD, Jha, P, et al. Risk factors for sternal wound infection and mid-term survival following coronary artery bypass surgery. Eur J Cardiothorac Surg 2003;23:943949.Google Scholar
16.Jonkers, D, Elenbaas, T, Terporten, P, Nieman, F, Stobberingh, E. Prevalence of 90-day postoperative wound infections after cardiac surgery. Eur J Cardiothorac Surg 2003;23:97102.CrossRefGoogle Scholar
17.Yellin, A, Refaely, Y, Paley, M, Simansky, D. Major bleeding complicating deep sternal infection after cardiac surgery. J Thorac Cardiovasc Surg 2003;125:554558.CrossRefGoogle ScholarPubMed
18.Green, JW, Wenzel, RP. Postoperative wound infection: a controlled study of the increased duration of hospital stay and direct cost of hospitalization. Ann Surg 1977;185:264268.CrossRefGoogle ScholarPubMed
19.Nelson, RM, Dries, DJ. The economic implications of cardiac surgery. Ann Thorac Surg 1986;42:240246.CrossRefGoogle Scholar
20.Kluytmans, JA, Mouton, JW, Maat, AP, et al. Surveillance of postoperative infections in thoracic surgery. J Hosp Infect 1995;20:272279.Google Scholar
21.Milano, CA, Kesler, K, Archibald, N, Sexton, DJ, Jones, RH. Mediastinitis after coronary artery bypass graft surgery: risk factors and long-term survival. Circulation 1995;92:22452251.Google Scholar
22.Farinas, MC, Galo Peralta, F, Bernal, JM, Rabasa, JM, Revuelta, JM, Gonzales-Macias, J. Suppurative mediastinitis after open-heart surgery: a case-control study covering a seven-year period in Santander, Spain. Clin Infect Dis 1995;20:272279.Google Scholar
23.Train, M, Baron, D, Gouin, P, et al. Infections in surgery under extracorporeal circulation: results of 3 years of antibioprophylaxis. Cahier d'Anesthésiologie 1984;32:495499.Google Scholar
24.Horan, TC, Gaynes, RP, Martone, WJ, Jarvis, WR, Emori, TG. CDC definitions of nosocomial surgical site infections, 1992: a modification of CDC definitions of surgical wound infections. Infect Control Hosp Epidemiol 1992;13:606608.CrossRefGoogle ScholarPubMed
25.Mangram, AJ, Horan, TC, Pearson, ML, Silver, LC, Jarvis, WR. Guideline for prevention of surgical site infection, 1999. Infect Control Hosp Epidemiol 1999;20:247280.Google Scholar
26.Haley, RW, Culver, DH, Morgan, WM, White, JW, Emori, TG, Hooton, TM. Identifying patients at high risk of surgical wound infection: a sample multivariate index of patient susceptibility and wound contamination. Am J Epidemiol 1985;121:206215.Google Scholar
27.Zacharias, A, Habib, RH. Factors predisposing to median sternotomy complications: deep vs superficial infection. Chest 1996;5:11731178.Google Scholar
28.El Oakley, RM, Wright, JE. Postoperative mediastinitis: classification and management. Ann Thorac Surg 1996;61:10301036.CrossRefGoogle ScholarPubMed
29.Gardlund, B, Bitkover, CY, Vaage, J. Postoperative mediastinitis in cardiac surgery: microbiology and pathogenesis. Eur J Cardiothorac Surg 2002;21:825830.Google Scholar
30.Hazelrigg, SR, Wellons, HA, Schneider, JA, Kolm, P. Wound complications after median sternotomy: relationship to internal mammary grafting. J Thorac Cardiovasc Surg 1989;6:10961099.Google Scholar
31.Sethi, GK, Copeland, JG, Moritz, T, et al. Comparison of postoperative complications between saphenous vein and IMA grafts to left anterior descending coronary artery. Ann Thorac Surg 1991;51:733738.Google Scholar
32.Grossi, EA, Esposito, R, Harris, J, et al. Sternal wound infections and use of internal mammary artery grafts. J Thorac Cardiovasc Surg 1991;102:342347.CrossRefGoogle ScholarPubMed
33.El Gamel, A, Yonan, NA, Hassan, R, et al. Treatment of mediastinitis: early modified Robicsek closure and pectoralis major advancement flaps. Ann Thorac Surg 1998;65:4146.Google Scholar
34.Roy, MC. Surgical-site infections after coronary artery bypass graft surgery: discriminating site-specific risk factors to improve prevention efforts. Infect Control Hosp Epidemiol 1998;19:229233.Google Scholar
35.He, GW, Ryan, WH, Acuff, TE, et al. Risk factors for operative mortality and sternal wound infection in bilateral internal mammary artery grafting. J Thorac Cardiovasc Surg 1994;107:196202.Google Scholar
36.Borger, MA, Rao, V, Weisel, RD, et al. Deep sternal wound infection: risk factors and outcomes. Ann Thorac Surg 1998;65:10501056.CrossRefGoogle ScholarPubMed
37.Rizzoli, G, Schiavon, L, Bellini, P. Does the use of bilateral internal mammary artery (IMA) grafts provide incremental benefit relative to the use of a single IMA graft? A meta-analysis approach. Eur J Cardiothorac Surg 2002;22:781786.Google Scholar
38.Roy, MC, Herwaldt, LA, Embrey, R, Kuhns, K, Wenzel, RP, Perl, TM. Does the Centers for Disease Control and Prevention's NNIS System risk index stratify patients undergoing cardiothoracic operations by their risk of surgical-site infection? Infect Control Hosp Epidemiol 2000;21:186190.CrossRefGoogle ScholarPubMed
39.Gaynes, RP. Surgical-site infections and the NNIS SSI risk index: room for improvement. Infect Control Hosp Epidemiol 2000;21:184185.Google Scholar
40.Kohli, M, Yuan, L, Escobar, M, et al. A risk index for sternal surgical wound infection after cardiovascular surgery. Infect Control Hosp Epidemiol 2003;24:1725.Google Scholar
41.Haley, RW, Culver, DH, Morgan, WM, White, JW, Emori, TG, Hooton, TM. The efficacy of infection surveillance and control programs in preventing nosocomial infections in US hospitals. Am J Epidemiol 1985;121:182205.Google Scholar
42.Roy, MC, Perl, TM. Basics of surgical-site infection surveillance. Infect Control Hosp Epidemiol 1997;18:659668.Google Scholar
43.Olson, MM, Lee, JT Jr. Continuous 10-year wound infection surveillance: results, advantages, and unanswered questions. Arch Surg 1990;125:794803.Google Scholar