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August 1988, Vol 142, No. 8 >
Article | August 1988

Role of Fibronectin in Diagnosing Bacterial Infection in Infancy

Joyce M. Koenig, MD; Lori E. R. Patterson, MD; Marcia A. Rench, RN; Morven S. Edwards, MD
Am J Dis Child. 1988;142(8):884-887. doi:10.1001/archpedi.1988.02150080090031.
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• Plasma fibronectin levels and complete blood cell counts were assessed prospectively among 100 infants less than 3 months of age with the provisional diagnosis of "possible sepsis." Seven of the ten infants with culture-proved bacteremia, meningitis, or urinary tract infection had low plasma fibronectin levels as did 12 (13%) of 90 infants with superficial or no documented bacterial infection. The positive predictive value of a low plasma fibronectin level in conjunction with leukocytosis and elevated band ratio for discriminating serious bacterial infection was 71%. Normal white blood cell counts or fibronectin level alone or in combination predicted the absence of serious bacterial infection with an accuracy of at least 94%. Plasma fibronectin determination provides a useful adjunct to the complete blood cell count for the rapid evaluation of extent of illness in young infants with possible sepsis.

(AJDC 1988;142:884-887)

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