BACKGROUND: Few studies demonstrated that serum amyloid A (SAA), a non-specific acute-phase reactant, could be used as a reliable early marker for the diagnosis of late-onset sepsis (LOS). OBJECTIVES: To evaluate the diagnostic value and the dynamics of SAA levels during the course of LOS and to compare it to those of other inflammatory markers. METHODS: Levels of SAA, C-reactive protein (CRP) and IL-6 together with clinical variables, biochemical parameters and cultures retrieved from all preterm infants suspected of LOS were checked at the first suspicion of sepsis and after 8, 24, 48 and 72 h. Results were compared to healthy, matched infants. RESULTS: One hundred and sixteen infants were included in the study, 38 in the sepsis and 78 in the non-sepsis group. High levels of SAA were observed at sepsis onset, with a gradual decline thereafter, while CRP levels increased only at 24 h after sepsis onset. In the sepsis group, levels of SAA returned faster to baseline than CRP levels. Receiver-operating characteristic analysis values revealed that SAA at 10 mug/ml had the highest sensitivity at 0, 8 and 24 h after sepsis onset (95, 100 and 97%, respectively) and a negative predictive value (97, 100 and 98%, respectively). CONCLUSIONS: SAA is an accurate acute-phase protein during LOS in preterm infants. Quick and reliable SAA kits can make this marker a useful tool in LOS in preterm infants. Copyright (c) 2005 S. Karger AG, Basel
BACKGROUND: Few studies demonstrated that serum amyloid A (SAA), a non-specific acute-phase reactant, could be used as a reliable early marker for the diagnosis of late-onset sepsis (LOS). OBJECTIVES: To evaluate the diagnostic value and the dynamics of SAA levels during the course of LOS and to compare it to those of other inflammatory markers. METHODS: Levels of SAA, C-reactive protein (CRP) and IL-6 together with clinical variables, biochemical parameters and cultures retrieved from all preterm infants suspected of LOS were checked at the first suspicion of sepsis and after 8, 24, 48 and 72 h. Results were compared to healthy, matched infants. RESULTS: One hundred and sixteen infants were included in the study, 38 in the sepsis and 78 in the non-sepsis group. High levels of SAA were observed at sepsis onset, with a gradual decline thereafter, while CRP levels increased only at 24 h after sepsis onset. In the sepsis group, levels of SAA returned faster to baseline than CRP levels. Receiver-operating characteristic analysis values revealed that SAA at 10 mug/ml had the highest sensitivity at 0, 8 and 24 h after sepsis onset (95, 100 and 97%, respectively) and a negative predictive value (97, 100 and 98%, respectively). CONCLUSIONS:SAA is an accurate acute-phase protein during LOS in preterm infants. Quick and reliable SAA kits can make this marker a useful tool in LOS in preterm infants. Copyright (c) 2005 S. Karger AG, Basel
Authors: Pak Cheung Ng; Irene Ling Ang; Rossa Wai Kwun Chiu; Karen Li; Hugh Simon Lam; Raymond Pui On Wong; Kit Man Chui; Hon Ming Cheung; Eddy Wing Yin Ng; Tai Fai Fok; Joseph Jao Yiu Sung; Yuk Ming Dennis Lo; Terence Chuen Wai Poon Journal: J Clin Invest Date: 2010-07-01 Impact factor: 14.808
Authors: Iliana Bersani; Cinzia Auriti; Maria Paola Ronchetti; Giusi Prencipe; Diego Gazzolo; Andrea Dotta Journal: Biomed Res Int Date: 2015-01-18 Impact factor: 3.411
Authors: Thor A Wagner; Courtney A Gravett; Sara Healy; Viju Soma; Janna C Patterson; Michael G Gravett; Craig E Rubens Journal: J Glob Health Date: 2011-12 Impact factor: 4.413