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Hospital-Acquired Infections in Intensive Care Unit Patients An Overview with Emphasis on Epidemics

Published online by Cambridge University Press:  02 January 2015

Richard P Wenzel*
Affiliation:
Departments of Medicine and Nursing, University of Virginia Medical School, Department of Epidemiology, University of Virginia, Graduate School of Arts and Sciences, Charlottesville, Virginia and Virginia Commonwealth Health Department, Richmond, Virginia
Robert L. Thompson
Affiliation:
Departments of Medicine and Nursing, University of Virginia Medical School, Department of Epidemiology, University of Virginia, Graduate School of Arts and Sciences, Charlottesville, Virginia and Virginia Commonwealth Health Department, Richmond, Virginia
Sandra M. Landry
Affiliation:
Departments of Medicine and Nursing, University of Virginia Medical School, Department of Epidemiology, University of Virginia, Graduate School of Arts and Sciences, Charlottesville, Virginia and Virginia Commonwealth Health Department, Richmond, Virginia
Brenda S. Russell
Affiliation:
Departments of Medicine and Nursing, University of Virginia Medical School, Department of Epidemiology, University of Virginia, Graduate School of Arts and Sciences, Charlottesville, Virginia and Virginia Commonwealth Health Department, Richmond, Virginia
Patti J. Miller
Affiliation:
Departments of Medicine and Nursing, University of Virginia Medical School, Department of Epidemiology, University of Virginia, Graduate School of Arts and Sciences, Charlottesville, Virginia and Virginia Commonwealth Health Department, Richmond, Virginia
Samuel Ponce de Leon
Affiliation:
Departments of Medicine and Nursing, University of Virginia Medical School, Department of Epidemiology, University of Virginia, Graduate School of Arts and Sciences, Charlottesville, Virginia and Virginia Commonwealth Health Department, Richmond, Virginia
Grayson B. Miller Jr.
Affiliation:
Departments of Medicine and Nursing, University of Virginia Medical School, Department of Epidemiology, University of Virginia, Graduate School of Arts and Sciences, Charlottesville, Virginia and Virginia Commonwealth Health Department, Richmond, Virginia
*
Box 473, University of Virginia Medical Center, Charlottesville, VA 22908

Abstract

Surveillance activities for the detection of nosocomial infections at the University of Virginia Hospital (Charlottesville, Virginia) and at hospitals participating in the Virginia Statewide Infection Control Program have focused on outbreaks and device-related infections which are potentially preventable. Eleven outbreaks of nosocomial infections were identified at the University of Virginia Hospital between January 1, 1978 and December 31, 1982 (9.8 outbreaks/100,000 admissions). Ten of the 11 were centered in critical care units. The 269 patients involved in the epidemics represented 0.2% of all hospital admissions and 3.7% of all patients who developed nosocomial infections. Eight of the 11 outbreaks involved infection of the bloodstream, and the 90 patients who developed a bloodstream infection as part of an epidemic represented 8% of all patients with nosocomial bloodstream infections identified during the five-year study period. The reservoir of the 11 outbreaks involved devices (5), contaminated cocaine (1), probable blood products (1), other patients (3), and nursing personnel (1). Forty-one percent of all nosocomial bloodstream infections and 41% of all nosocomial pneumonias occurred in intensive care units (ICUs).

In 38 hospitals in the state of Virginia with ICUs and practitioners who voluntarily reported surveillance data between June 1,1980 and May 31,1982, there were 264,757 patients admitted and a crude infection rate of 3%. Of note is that 1,867 of the 7,407 nosocomial infections (25%) occurred in the ICU patients. Several factors point to a compelling argument that the highest priority in infection control resources be assigned to the prevention and control of ICU infections: ICU patients often have serious device-related infections and may be identified as high risk prior to infection. Furthermore, they are at risk of being infected as part of a major outbreak. Such characteristics define a population of hospitalized patients, many of whose infections are preventable.

Type
Original Articles
Copyright
Copyright © The Society for Healthcare Epidemiology of America 1983

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References

1.Dixon, RE: Effect of infections on hospital care. Ann Intern Med 1978; 89:749753.CrossRefGoogle ScholarPubMed
2.National Nosocomial Infections Study Report, 1977. Atlanta, Center for Disease Control, 1979, p 13.Google Scholar
3.Wenzel, RP, Osterman, CA, Townsend, TR, et al: Development of a statewide program for surveillance and reporting of hospital-acquired infections. J Infect Dis 1979; 140:741746.CrossRefGoogle ScholarPubMed
4.Rose, R, Hunting, KJ, Townsend, TR, et al: The morbidity, mortality and economics of hospital-acquired bloodstream infections: A controlled study. South Med 1977; 70:12671269.CrossRefGoogle ScholarPubMed
5.Townsend, TR, Wenzel, RP: Nosocomial bloodstream infections in a newborn intensive care unit: A case matched control study of morbidity, mortality, and risk. Am J Epidemiol 1981; 114:7380.CrossRefGoogle Scholar
6.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
7.Scheckler, WE: Septicemia and nosocomial infections in a community hospital. Ann Intern Med 1978; 89:754756.CrossRefGoogle Scholar
8.Freeman, J, Rosner, BA, McGowan, JE Jr: Adverse effects of nosocomial infection. J Infect Dis 1979; 140:732740.CrossRefGoogle ScholarPubMed
9.Donowitz, LG, Wenzel, RP: Endometritis following cesarean section: A controlled study of the increased duration of hospital stay and direct cost of hospitalization. Am J Obstet Gynecol 1980; 137:467469.CrossRefGoogle ScholarPubMed
10.Givens, CD, Wenzel, RP: Catheter-associated urinary tract infections in surgical patients: A controlled study on the excess morbidity and costs. J Urol 1980; 124:646648.CrossRefGoogle Scholar
11.Haley, RW, Schabert, DR, VonAllmen, SDet al: Estimating the extra charges and prolongation of hospitalization due to nosocomial infections: A comparison of methods. J Infect Dis 1980; 141:248257.CrossRefGoogle ScholarPubMed
12.Scheckler, WE: Hospital costs of nosocomial infections. A prospective three month study in a community hospital. Infect Control 1980; 1:150152.CrossRefGoogle Scholar
13.Garner, JS, Bennett, JC, Scheckler, WE, et al: Surveillance of nosocomial infections, in Proceedings of the International Conference on Nosocomial Infections. Chicago, American Hospital Association, 1971, pp 277281.Google Scholar
14.Aber, RC, Bennett, JV: Surveillance of nosocomial infections, in Bennett, JV, Brachman, P (eds): Hospital Infections. Boston, Little Brown & Co, 1979, pp 5361.Google Scholar
15.Wenzel, RP, Osterman, CA, Hunting, KJ, et al: Hospital-acquired infections. I. Surveillance in a university hospital. Am J Epidemiol 1976; 103:251260.CrossRefGoogle ScholarPubMed
16.Wenzel, RP, Osterman, CA, Hunting, KJ: Hospital-acquired infections. II. Infection rates by site, service and common procedures in a university hospital. Am J Epidemiol 1976; 104:645651.CrossRefGoogle ScholarPubMed
17.Wenzel, RP, Hunting, KJ, Osterman, CA: Post-operative wound infection rates. Surg Gynecol Obstet 1977; 144:749752.Google ScholarPubMed
18.McGowan, JE Jr, Parrott, PL, Duty, VP: Nosocomial bacteremia. Potential for prevention of procedure-related cases. JAMA 1977; 237:27272729.CrossRefGoogle ScholarPubMed
19.Stamm, WE: Infections related to medical devices. Ann Intern Med 1978; 89:764769.CrossRefGoogle ScholarPubMed
20.Weinstein, RA, Young, LS: Other procedure-related infections, in Bennett, JV, Brachman, P (eds): Hospital Infections. Boston, Little Brown & Co, 1979, pp 489505.Google Scholar
21.Wenzel, RP, Osterman, CA, Donowitz, LG, et al: Identification of procedure-related nosocomial infections in high-risk patients. Rev Infect Dis 1981; 3:701707.CrossRefGoogle ScholarPubMed
22.Donowitz, LG, Marsik, FJ, Hoyt, JW, et al: Serratia marcescens bacteremia from contaminated pressure transducers. JAMA 1979; 242:17491751.CrossRefGoogle ScholarPubMed
23.Donowitz, LG, Marsik, FJ, Fisher, KA, et al: Contaminated breast milk: A source of Klebsiella bacteremia in a newborn intensive care unit. Rev Infect Dis 1981; 3:716720.CrossRefGoogle Scholar
24.Haley, CE, Cregory, WW, Donowitz, LG, et al: Neonatal intensive care unit (NICU) bloodstream infections (BSI): Emergence of gram positive bacteria as major pathogens. Read before the 22nd Interscience Conference on Antimicrobial Agents and Chemotherapy. Miami Beach, Florida, October 1982.Google Scholar
25.Martone, WJ, Osterman, CA, Fisher, KA, et al: Pseudomonas cepacia: Implications and control of epidemic nosocomial colonization. Rev Infect Dis 1981; 3:708715.CrossRefGoogle ScholarPubMed
26.Peacock, JE, Marsik, FJ, Wenzel, RP: Methicillin-resistant Staphylococcus aureus: Introduction and spread within a hospital. Ann Intern Med 1980; 93:526532.CrossRefGoogle ScholarPubMed
27.Thompson, RL, Cabezudo, I, Wenzel, RP: Epidemiology of nosocomial infections caused by methicillin-resistant Staphylococcus aureus. Ann Intern Med 1982; 97:309317.CrossRefGoogle ScholarPubMed