OBJECTIVES: To determine correlations and predictive strength of surrogate markers (body temperature, leukocyte count, C-reactive protein [CRP], and procalcitonin [PCT]) with elevated levels of tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) in septic patients. DESIGN: Prospective consecutive case series. SETTING: Surgical intensive care unit (ICU) of a university hospital. PATIENTS: A total of 175 patients experiencing intensive care unit stays >48 hrs categorized for sepsis according to ACCP/ SCCM Consensus Conference criteria. MEASUREMENTS AND MAIN RESULTS: CRP and PCT were both significantly correlated with TNF-alpha and IL-6. Based on the area-under-the-curve of the receiver operating characteristics curves, predicting capability was highest for PCT (0.814 for TNF-alpha >40 pg/mL and 0.794 for IL-6 >500 pg/mL), moderate with CRP (0.732 and 0.716, respectively), and lowest for leukocyte count (0.493 and 0.483, respectively) and body temperature (0.587 and 0.589, respectively). Sensitivity, specificity, positive, and negative predictive values and test effectiveness all followed this same pattern of being highest for PCT followed by CRP, with leukocyte count and body temperature being lowest. CONCLUSION: PCT may be an early and better marker of elevated cytokines than the more classic criteria of inflammation.
OBJECTIVES: To determine correlations and predictive strength of surrogate markers (body temperature, leukocyte count, C-reactive protein [CRP], and procalcitonin [PCT]) with elevated levels of tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) in septicpatients. DESIGN: Prospective consecutive case series. SETTING: Surgical intensive care unit (ICU) of a university hospital. PATIENTS: A total of 175 patients experiencing intensive care unit stays >48 hrs categorized for sepsis according to ACCP/ SCCM Consensus Conference criteria. MEASUREMENTS AND MAIN RESULTS:CRP and PCT were both significantly correlated with TNF-alpha and IL-6. Based on the area-under-the-curve of the receiver operating characteristics curves, predicting capability was highest for PCT (0.814 for TNF-alpha >40 pg/mL and 0.794 for IL-6 >500 pg/mL), moderate with CRP (0.732 and 0.716, respectively), and lowest for leukocyte count (0.493 and 0.483, respectively) and body temperature (0.587 and 0.589, respectively). Sensitivity, specificity, positive, and negative predictive values and test effectiveness all followed this same pattern of being highest for PCT followed by CRP, with leukocyte count and body temperature being lowest. CONCLUSION: PCT may be an early and better marker of elevated cytokines than the more classic criteria of inflammation.
Authors: G D Mills; H M Lala; M R Oehley; A B Craig; K Barratt; D Hood; C N Thornley; A Nesdale; N E Manikkam; P Reeve Journal: Eur J Clin Microbiol Infect Dis Date: 2006-08 Impact factor: 3.267
Authors: Dinesh Vyas; Pardis Javadi; Peter J Dipasco; Timothy G Buchman; Richard S Hotchkiss; Craig M Coopersmith Journal: Am J Physiol Regul Integr Comp Physiol Date: 2005-06-09 Impact factor: 3.619
Authors: Rafael Sierra; Jordi Rello; María Angeles Bailén; Encarnación Benítez; Antonio Gordillo; Cristobal León; Sebastián Pedraza Journal: Intensive Care Med Date: 2004-09-11 Impact factor: 17.440
Authors: Joana Silvestre; P Póvoa; L Coelho; E Almeida; P Moreira; A Fernandes; R Mealha; H Sabino Journal: Intensive Care Med Date: 2009-01-24 Impact factor: 17.440