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KMID : 0383820110700010051
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Tuberculosis and Respiratory Diseases
2011 Volume.70 No. 1 p.51 ~ p.57
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Utility of Serum Procalcitonin for Diagnosis of Sepsis and Evaluation of Severity
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Park Tae-Jin
Lim Chae-Man
Koh Youn-Suck
Hong Sang-Bum
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Abstract
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Background: Early recognition and treatment of sepsis would improve patients’ outcome. But it is difficult to distinguish between sepsis and non-infectious conditions in the acute phase of clinical deterioration. We studied serum level of procalcitonin (PCT) as a method to diagnose and to evaluate sepsis.
Methods: Between 1 March 2009 and 30 September 2009, 178 patients had their serum PCT tested during their clinical deterioration in the medical intensive care unit. These laboratories were evaluated, on a retrospective basis. We classified their clinical status as non-infection, local infection, sepsis, severe sepsis, and septic shock. Then, we compared their clinical status with level of PCT.
Results: The number of clinical status is as follows: 18 non-infection, 33 local infection, 39 sepsis, 26 severe sepsis, and 62 septic shock patients. PCT level of non-septic group (non-infection and local infection) and septic group (sepsis, severe sepsis, septic shock) was 0.36±0.57 ng/mL and 18.09±36.53 ng/mL (p<0.001), respectively. Area under the curve for diagnosis of sepsis using cut-off value of PCT >0.5 ng/mL was 0.841 (p<0.001). Level of PCT as clinical status was statistically different between severe sepsis and septic shock (*severe sepsis; 4.53±6.15 ng/mL, *septic shock 34.26±47.10 ng/mL, *p<0.001).
Conslusion: Level of PCT at clinical deterioration showed diagnostic power for septic condition. The level of PCT was statistically different between severe sepsis and septic shock.
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KEYWORD
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Sepsis, Biomarkers, Procalcitonin, Diagnosis
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