Abstract | BACKGROUND AND AIM OF THE STUDY: Despite recent improvements in diagnostic and therapeutic interventions, infective endocarditis (IE) is still associated with high in-hospital mortality rates. The study aim was to determine the clinical, laboratory and echocardiographic features of IE, and to evaluate the risk factors for in-hospital mortality. METHODS: A retrospective cohort study design was employed, with a main outcome measure of in-hospital mortality. A total of 107 patients (79 males, 28 females; mean age 45 +/- 16 years) admitted with the modified Duke criteria for definitive IE were included in the study during a five-year period between January 2004 and December 2008. RESULTS: Among the patients, the mitral valve alone was involved in 45% of cases, the aortic valve in 36%, tricuspid valve in 11%, and multiple valves in 8%. Forty-seven patients (44%) had prosthetic valves. Blood cultures were positive in 71 patients (66%). The most common isolated microorganisms were staphylococci, streptococci and Brucella melitensis. The in-hospital mortality rate was 27%. Leading causes of death were multi-organ failure and heart failure. In univariate analysis, factors associated with death were a longer duration of symptoms before hospitalization, previous history of IE, white blood cell count > or = 10,000/mm3, serum creatinine level > or = 2 mg/dl, vegetation size >15 mm, involvement of multiple valves, existence of severe regurgitation, cardiac abscess, and neurologic complications. Multivariate analysis showed that risk factors for mortality were multivalvular involvement (hazard ratio (HR) 4.7; 95% confidence interval (CI) 1.3-17.6; p = 0.021), vegetation size >15 mm (HR 5.5; 95% CI 2.1-14.6; p = 0.001), serum creatinine > or = 2 mg/dl (HR 4.1; 95% CI 1.8-9.4; p = 0.001), and previous history of IE (HR 3.5; 95% CI 1.2-11; p = 0.026). CONCLUSION: Multivalvular involvement, vegetation length >15 mm, serum creatinine level > or = 2 mg/dl on admission, and a previous history of IE, were independent predictors for in-hospital mortality in IE.
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Authors | Ali Riza Erbay, Ayşe Erbay, Aytun Canga, Gökhan Keskin, Nihat Sen, Ramazan Atak, Ahmet Duran Demir, Yücel Balbay, Erdal Duru |
Journal | The Journal of heart valve disease
(J Heart Valve Dis)
Vol. 19
Issue 2
Pg. 216-24
(Mar 2010)
ISSN: 0966-8519 [Print] England |
PMID | 20369506
(Publication Type: Journal Article)
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Topics |
- Adult
- Aged
- Echocardiography
- Endocarditis, Bacterial
(complications, diagnostic imaging, microbiology, mortality)
- Female
- Heart Valve Diseases
(complications, diagnostic imaging, microbiology, mortality)
- Hospital Mortality
- Humans
- Kaplan-Meier Estimate
- Male
- Middle Aged
- Risk Factors
- Young Adult
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