Non-invasive Heart Failure Monitoring Using Novel Acceleration Sensors System

Pulmonary veins congestion and fine changes in alveolar transudative effusion accumulation affect lung mechanics (compliance) and the respiratory effort. Moreover, the associated state of oxygen de-saturation is compensated by an increase in the respiratory effort. These changes in the respiratory effort are reflected in chest wall dynamics and may provide the earliest non-invasive sign for lung congestion and deterioration in the heart failure. The research system comprises of patches attached to the patients' thorax that include motion sensors (Accelerometers) that measure the chest wall dynamics and the mechanics of lung inflation and deflation. The signals are acquired by a miniaturized device that amplifies and samples the signals, stores and analyzes the data and displays the trends on the screen.