This paper describes the application of Ensemble Signal Averaging (ESA) to the problem of motion artifact reduction in the oscillometric non-invasive blood pressure (NIBP) signal. The algorithm described addresses the problems of preserving the cuff pressure (CP) vs pulse size envelope shape, dealing with the case of a long pulse delay, using limited CPU resources, and optimizing the determination cycle time.
in demonstrating a real-world benefit could be attributed to small numbers of patients and short timeframes to evaluate impact.The results also help convey an important safety aspect of using the CASI tool showing a 1.9-fold (95% CI: 1.25 -2.89; p-value=0.007) increase in the number of emergency admissions for heart failure compared to prior to induction of CASI in the registered users (figure 2). This demonstrates an important triage system embedded in the NHS test bed work in being able to not just send patients to ambulatory care but also filter out patients that need more urgent review. Conclusion It is important to appreciate the importance of an ambulatory heart failure service in freeing up NHS beds. Evaluating the NHS Test Bed project over a longer timeframe with large numbers of patients to reach statistical significance will be of vital importance to prepare for the future surges of the COVID-19 pandemic.
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