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Aim: To investigate the clinical predictive value of troponin (hscTnT) and blood culture testing. Methods: We examined all medical admissions from 2011-2020. Prediction of 30-day in-hospital mortality, dependent on blood culture and hscTnT requests/results, was evaluated using multiple variable logistic regression. Length of stay was related to utilization of procedures/services with truncated Poisson regression. Results: There were 77,566 admissions in 42,325 patients. With both blood cultures and hscTnT requested, 30-day in-hospital mortality increased to 20.9% (95%CI: 19.7, 22.1) vs 8.9% (95%CI: 8.5, 9.4) for blood cultures alone and 2.3% (95%CI: 2.2, 2.4) with neither. Blood culture 3.93 (95%CI: 3.50, 4.42) or hsTnT requests 4.58 (95%CI: 4.10, 5.14) were prognostic. Conclusion: Blood culture and hscTnT requests and results predict worse outcomes.

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Heart, Lung and Circulation CSANZ 2012 Abstracts 2012;21:S143-S316 but with 35% considering them a distraction or intrusion.http://dx. Introduction:Evaluation of coronary artery disease during cardiac catheterisation is an increasingly evolving field. Technology such as Intravascular Ultrasound (IVUS), Fractional Flow Reserve (FFR) and Optical Coherence Tomography (OCT) provide additional functional and anatomical information on which treatment is based. We sought to evaluate the change in usage of these modalities over time.Method: A five year retrospective data analysis between 1st January 2007 to 31st December 2011 of 17,149 patients who underwent coronary angiography at TPCH was undertaken and the incidence of lesion evaluation modalities was examined. We employed a nonparametric test for trend across ordered groups.Findings: 1140 patients received either IVUS, OCT or FFR evaluation. The percentage of patients who underwent one of the following lesion evaluation techniques increased over the five year period from 4.59% in 2007 to 9.13% in 2011 (p < 0.001). The proportion of patients receiving IVUS evaluation over the same period shifted from 64.67% to 30.12% (p < 0.001), FFR from 35.33% to 52.80% (p < 0.001) and OCT from 0.0% to 17.08% (p < 0.001).Conclusion: There is an increasing trend in the overall use of modalities for lesion evaluation. Whilst the overall IVUS usage remained similar across the five year period, the user friendly, higher resolution OCT technology has provided an additional evaluation tool within the intravascular imaging arena. FFR use has increased substantially and is now the main technology used for lesion evaluation.

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