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Infections in a coronary care unit
Abstract:
All infections in patients in an active coronary care unit (CCU) over a 3-year period were analyzed to ascertain rates, outcomes, pathogens and sites of infections. Standard surveillance methods and definitions of the Center for Disease Control were used. A total of 236 infections were documented in 200 infected patients. Infection rates were 5 and 2% for total and CCU-acquired infections, respectively. CCU infections accounted for 11% of nosocomial infections that occurred within all critical care areas surveyed. Of all documented infections, 131 (56%) were community-acquired and 90 (38%) were acquired within the CCU. Lower respiratory and urinary tract infections were most frequently noted, with E. coli, S. aureus, and klebsiella-enterobacter-serratia most usually implicated. Mortality among patients with infections was 31%, compared with 8 to 12% in those who were not infected. Those with lower respiratory infections or primary bacteremias had a higher mortality rate than those with infections at other sites (p less than 0.001). Infections are seen in close to 5% of CCU patients and may adversely affect the survival rate. The mortality rate in infected patients may be 3 times higher than that in the general CCU population. This study also provides data against which other similar institutions can gauge their CCU infection rates.
Insights
Coronary care unit (CCU) infections occur in nearly 5% of patients, significantly increasing mortality risk. This study details infection rates, common pathogens, and outcomes, offering benchmarks for other CCUs.
Area of Science:
- Infectious Diseases
- Critical Care Medicine
- Epidemiology
Background:
- Nosocomial infections pose a significant threat in critical care settings.
- Coronary Care Units (CCUs) are high-risk environments for patient infections.
- Understanding infection epidemiology is crucial for improving patient outcomes.
Purpose of the Study:
- To analyze the rates, common pathogens, sites, and outcomes of infections in a CCU.
- To compare infection rates within the CCU to overall hospital-acquired infections.
- To provide data for benchmarking CCU infection rates in other institutions.
Main Methods:
- A 3-year retrospective analysis of all infections in CCU patients.
- Utilized standard surveillance methods and definitions from the Centers for Disease Control.
- Documented infection rates, causative agents, and patient outcomes.
Main Results:
- 236 infections were documented in 200 patients over 3 years.
- Overall CCU infection rate was 5%, with 2% being CCU-acquired.
- Lower respiratory and urinary tract infections were most common, often caused by E. coli, S. aureus, and Klebsiella-Enterobacter-Serratia.
- Mortality was 31% in infected patients versus 8-12% in uninfected patients.
Conclusions:
- CCU infections are prevalent and significantly increase patient mortality.
- Lower respiratory infections and bacteremias are associated with higher mortality rates.
- Findings provide valuable data for CCU infection control and benchmarking.