Real-time detection of intradialytic hypotension using a novel polyvinylidene fluoride based sensor

This paper presents a novel sensor in the form of a ring to monitor vascular tone continuously and non-invasively. The signal that is generated by this sensor would allow for accurate detection and analysis of reflection waves that can be used to identify or predict several medical conditions including intradialytic hypotension (IDH). The sensor is accompanied by signal analytics that would detect the changes in the morphology of the signal which are associated with IDH and would notify the dialysis physicians and nurses. The data that was collected from nine dialysis patients indicated that the proposed ring and the signal processing and machine learning approaches that are used can predict IDH up to one hour before the incidence of IDH.