The Lyme Disease Network
Medical / Scientific Abstract


Title:Effective use of polymerase chain reaction for diagnosis of central nervous system infections.
Authors:Tang YW, Hibbs JR, Tau KR, Qian Q, Skarhus HA, Smith TF, Persing DH
Source:Clin Infect Dis 1999 Oct;29(4):803-6
CID Home Page: http://www.journals.uchicago.edu/CID/
Organization:Department of Laboratory Medicine and Pathology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA.

Abstract:
Polymerase chain reaction (PCR)-based testing of cerebrospinal fluid (CSF) specimens has become standard for confirmatory diagnosis of central nervous system (CNS) infections; however, these tests increase health care costs. We reviewed 3-year data from 974 consecutive CSF specimens submitted for detection of seven pathogens by PCR. In 1997, 237 of 367 specimens (64.6%) were submitted for multiple tests, compared with 203 of 522 (38.9%) in 1996 and 18 of 85 (21.2%) in 1995. In each year the arrival of new house officers coincided with a peak in multiple testing. Among 732 specimens submitted for herpesvirus detection, results were positive for 24 (4.6%) of 523 specimens with increased leukocyte counts or protein levels. None of 209 specimens with normal leukocyte and protein levels were positive for herpesviruses. None of 471 CSF specimens submitted for Borrelia burgdorferi detection were PCR-positive. Use of protein and leukocytes to screen CSF specimens before employing PCR for herpesvirus detection would save almost one-third of costs without reducing sensitivity.

Keywords:
Central Nervous System Infections, CEREBROSPINAL FLUID, DIAGNOSIS, Herpesviridae Infections, DIAGNOSIS, Human, Leukocyte Count, Lyme Disease, DIAGNOSIS, Polymerase Chain Reaction

Language: Eng

Unique ID: 20055838


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