Evaluation of pregnancy-associated plasma protein A as a prognostic indicator in acute coronary syndrome patients

Clinica Chimica Acta; International Journal of Clinical Chemistry
Omar F LaterzaGary B Green

Abstract

Higher circulating concentrations of pregnancy-associated plasma protein A (PAPP-A), a potential proatherosclerotic metalloproteinase, have been associated with increased risk for acute coronary syndrome (ACS). Our goal was to determine the ability of circulating concentrations of PAPP-A to predict adverse events in patients presenting to the Emergency Department (ED) with symptoms of ACS. A total of 346 patients with symptoms of ACS were included in the study. Serum samples obtained immediately after enrollment were analyzed for PAPP-A and cardiac troponin T (cTnT). The occurrence of adverse events during a 30-day follow-up period was recorded, and receiver-operating characteristic (ROC) curve analysis was performed to evaluate the prognostic characteristics of PAPP-A and cTnT. A total of 33 (9.5 %) patients developed adverse events during the follow up period. At a cut-off concentration of 0.22 mIU/l, PAPP-A was a predictor of adverse events with a sensitivity and specificity (95% C.I.) of 66.7% (48.2-82.0) and 51.1% (45.4-56.8), respectively. The sensitivity and specificity of cTnT were 51.5% (33.6-69.2) and 82.1% (77.4-86.2), respectively, using a 0.01-ng/ml cut-off value, which was obtained using ROC analysis. PAPP-A appea...Continue Reading

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Citations

Feb 26, 2010·Internal and Emergency Medicine·Gina BiasilloLuigi Marzio Biasucci
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Oct 3, 2006·Clinica Chimica Acta; International Journal of Clinical Chemistry·Scott J CameronGary B Green
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