Background: Heart Failure (HF) is a common reason for hospitalization. Admissions might be prevented by early detection of and intervention for decompensation. Conventionally, changes in weight, a possible measure of fluid accumulation, have been used to detect deterioration. Transthoracic impedance may be a more sensitive and accurate measure of fluid accumulation. Objective: In this study, we review previously proposed predictive algorithms using body weight and noninvasive transthoracic bio-impedance (NITTI) to predict HF decompensations. Methods: We monitored 91 patients with chronic HF for an average of 10 months using a weight scale and a wearable bioimpedance vest. Three algorithms were tested using either simple rule-of-thumb differences (RoT), moving averages (MACD), or cumulative sums (CUSUM). Results: Algorithms using NITTI in the 2 weeks preceding decompensation predicted events (P
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Gyllensten, I. C., Bonomi, A. G., Goode, K. M., Reiter, H., Habetha, J., Amft, O., & Cleland, J. G. F. (2016). Early indication of decompensated heart failure in patients on home-telemonitoring: A comparison of prediction algorithms based on daily weight and noninvasive transthoracic bioimpedance. JMIR Medical Informatics, 4(1). https://doi.org/10.2196/medinform.4842
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