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. 2011 Nov 22:11:69.
doi: 10.1186/1471-2261-11-69.

Prevalence of major infections and adverse outcomes among hospitalized. ST-elevation myocardial infarction patients in Florida, 2006

Michelle C Nash  1 , Joel A Strom, Elizabeth B Pathak
Affiliations

Prevalence of major infections and adverse outcomes among hospitalized. ST-elevation myocardial infarction patients in Florida, 2006

Michelle C Nash et al. BMC Cardiovasc Disord. .

Abstract

Background: ST-elevation myocardial infarction (STEMI) patients have risk factors and co-morbidities and require procedures predisposing to healthcare acquired infections (HAIs). As few data exist on the extent and consequences of infections among these patients, the prevalence, predictors, and potential complications of major infections among hospitalized STEMI patients at all Florida acute care hospitals during 2006 were analyzed.

Methods: Sociodemographic characteristics, risk factors, co-morbidities, procedures, complications, and mortality were analyzed from hospital discharge data for 11, 879 STEMI patients age ≥ 18 years. We used multivariable logistic regression modeling to examine and adjust for multiple potential predictors of any infection, bloodstream infection (BSI), pneumonia, surgical site infection (SSI), and urinary tract infection (UTI).

Results: There were 2,562 infections among 16.6% of STEMI patients; 6.2% of patients had ≥2 infections. The most prevalent HAIs were UTIs (6.0%), pneumonia (4.6%), SSIs (4.1%), and BSIs (2.6%). Women were at 29% greater risk, Blacks had 23% greater risk, and HAI risk increased 11% with each 5 year increase in age. PCI was the only protective major procedure (OR 0.81, 95% CI, 0.69-0.95, p < .05). HAI lengthened hospital stays. STEMI patients with a BSI were almost 5 times more likely (31.3% vs. 6.5%, p < .0001), and those with pneumonia were 3 times more likely (19.6% vs. 6.5%, p < .0001) to die before discharge.

Conclusions: The protective effect of PCI on risk of infection is likely mediated by its many benefits, including reduced length of hospitalizations.

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