Volume 67, Issue 10 (1-2010)                   Tehran Univ Med J 2010, 67(10): 724-730 | Back to browse issues page

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Ahmadinejad Z, Soudbakhsh A, Tayebi A. Serum procalcitonin level in infectious and non- infectious systemic inflammatory response syndrome: a three- year study . Tehran Univ Med J. 2010; 67 (10) :724-730
URL: http://tumj.tums.ac.ir/article-1-5596-en.html
1- Department of Infectious Diseases, Imam Khomeini Hospital, Tehran University of Medical Science, Tehran. , ahmadiz@tums.ac.ir
2- Department of Infectious Diseases, Imam Khomeini Hospital, Tehran University of Medical Science, Tehran.
Abstract:   (3403 Views)
Background: Sepsis is the leading cause of hospital admission and mortality. One marker for differentiation between infectious and non-infectious diseases is serum procalcitonin (PCT) level. The goal of this study was evaluation of serum procalcitonin level for differentiation among infectious & non infectious systemic inflammatory response syndrome (SIRS).
Methods: In a cross sectional study 263 patients with probable symptoms of sepsis that admitted to emergency department of Imam Khomeini Hospital Complex in Tehran, Iran, between 2006 and 2008, were evaluated for serum procalcitonin level by semi quantitative method. The clinical findings, demographic and laboratory data were identified by reviewing the medical notes.
Results: A total of 263 patients enrolled in the study. Mean age in study patients was 46.9 year (20.7) and most of the patients were male (65.8%). In 104 patients (39.5%) serum procalcitonin level was less than 0.5 (ng/ml), in 49 patients (18.6%) was between 0.5 and 2 (ng/ml), in 74 patients (28.1%) was between 2 and 10 (ng/ml) and in 36 patients (13.8%) was more than 10 (ng/ml). Sixty three patients (60.6%) with PCT<0.5ng/ml, had non-infectious SIRS, while all patients with PCT≥10ng/ml, had infectious SIRS. Procalcitonin level in patients with infectious SIRS was significantly more than patients with non-infectious SIRS (p<0.0001). Sensitivity of test for cut off point of 0.5, 2 and 10 (ng/ml) were 89.2%, 67.1% and 22.8% respectively, and its specificity for cut off points of 0.5, two and 10 were 82.9%, 96.2% and 100% respectively.
Conclusions: Procalcitonin level in combination with an appropriate clinical assessment can help us in beginning of antibiotic therapy timely and improve diagnostic and prognostic evaluation of patients with sepsis.
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