Rapid measurement of S-100B serum protein levels by Elecsys S100 immunoassay in patients undergoing carotid artery stenting or endarterectomy

Mussack, Thomas; Klauss, Volker; Ruppert, Volker; Gippner-Steppert, Cornelia; Biberthaler, Peter; Schiemann, Uwe; Hoffmann, Ulrich; Jochum, Marianne (2006). Rapid measurement of S-100B serum protein levels by Elecsys S100 immunoassay in patients undergoing carotid artery stenting or endarterectomy. Clinical biochemistry, 39(4), pp. 349-56. Amsterdam: Elsevier 10.1016/j.clinbiochem.2005.12.007

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OBJECTIVES:: This study was designed to apply the rapid Elecsys(R) S100 immunoassay for real-time measurement of S100 protein serum levels indicating acute brain damage in patients undergoing carotid artery stenting (CAS) or endarterectomy (CEA). DESIGN AND METHODS:: Data of 14 CAS patients were compared to those of 43 CEA and 14 control patients undergoing coronary angiography (CA). S100 serum levels were measured by the full-automatic Elecsys(R) S100 immunoassay and compared to those obtained by the well-established LIA-mat(R) S100 system. RESULTS:: In contrast to CAS and CA patients, median S100 serum levels of CEA patients significantly increased to 0.24 ng/mL before declamping, but subsequently returned to baseline. Three CEA patients with neurological deficits showed sustained elevated S100 levels 6 h after extubation. Absolute S100 values were not significantly different between the two methods. Bland-Altman plot analyses displayed a good agreement, mostly indicating slightly smaller values applying the Elecsys(R) S100 system. CONCLUSIONS:: The Elecsys(R) S100 system appears to be suitable for rapid real-time detection of neurological deficits in patients undergoing CAS and CEA. Persistent elevations of Elecsys(R) S100 levels during CEA were associated with prolonged neurological disorders, whereas transient increases seem to represent impaired blood-brain barrier integrity without neurological deficits.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology > Centre of Competence for Psychosomatic Medicine

UniBE Contributor:

Schiemann, Uwe Kurt

ISSN:

0009-9120

ISBN:

16460721

Publisher:

Elsevier

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:50

Last Modified:

17 Mar 2015 21:53

Publisher DOI:

10.1016/j.clinbiochem.2005.12.007

PubMed ID:

16460721

Web of Science ID:

000237378300005

URI:

https://boris.unibe.ch/id/eprint/21036 (FactScience: 4907)

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