Up to 70 Percent of HAIs Can Be Prevented, Expert Says

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Up to 70 percent of certain cases of healthcare-acquired infections (HAIs) may be preventable with current evidence-based strategies according to a new study by Craig A. Umscheid, MD, MSCE, assistant professor of medicine and epidemiology and director of the Center for Evidence-Based Practice at the University of Pennsylvania. HAIs are infections that occur during a hospitalization and that are not present prior to hospital admission.

Using estimates from national reports and published studies related to HAIs, the study suggests that if best practices in infection prevention and control were applied at all U.S. hospitals, reducing the number of cases of catheter-associated bloodstream infections could save as many as 5,520-20,239 lives annually; for ventilator-associated pneumonia, 13,667 to 19,782 lives annually; for catheter-associated urinary tract infections, 2,225 to 9,031 lives annually; and for surgical site infections, 2,133 to 4,431 lives annually.

The study by Umscheid and five Penn colleagues was published in the February 2011 issue of Infection Control and Hospital Epidemiology.

Examples of current prevention strategies include clinician education, hand hygiene, maximum sterile barrier precautions during catheter insertion, chlorhexidine disinfection of catheter and surgical sites, prompt removal of unnecessary catheters, good blood sugar control in the surgical setting, and appropriate use of antibiotics.

Reducing HAIs also saves money. Based on the studies examined, preventable cases of catheter-associated bloodstream infections are likely to have the highest associated costs, ranging anywhere from $960 million to $18.2 billion annually. The hospital costs of preventable ventilator-associated pneumonia are estimated to be $2.19 billion to $3.17 billion annually. Costs of preventable catheter-associated urinary tract infections are estimated to be $115 million to $1.82 billion annually, and the costs of preventable surgical site infections are estimated to be $166 million to $345 million annually.

"Given the limitations of the data used in this study and the resulting uncertainty in our estimates, it is our hope that this study guides future research to accurately measure the impact of strategies to reduce healthcare-acquired infections, as well as the incremental costs of these infections," Umscheid says.

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