![]() The BA system produced 51% false positives in Arm-1, 44% in Arm-2, with negative predictive values of 92% and 100% respectively. ![]() Presence of the AICS was determined retrospectively and then correlated with troponin-I results.ฤก00 patients were enrolled in Arm-1 (38 with AICS) and 94 in Arm-2 (48 with AICS). Serum from a convenience sampling of telemetry patients was analyzed in real-time for troponin-I by either the BA-CC (Arm-1) or BA-AX (Arm-2) assay pairs. This was an observational prospective study at a university tertiary referral center. We sought to correlate the presence of the acute ischemic coronary syndrome (AICS) to troponin-I values obtained in real-time by three random-mode analyzer immunoassay systems: the Beckman ACCESS (BA), the Bayer ACS:180 (CC) and the Abbott AxSYM (AX). Most large published cTnI trials have utilized protocols which required the freezing of serum (or plasma) for delayed batch cTnI analysis. Reliability of cardiac troponin-I assays under real-time conditions has not been previously well studied.
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