Wearable Devices Based on Bioimpedance Test in Heart-Failure: Design Issues

Area of Science:

• Biomedical Engineering
• Medical Technology
• Cardiology

Background:

• Heart failure (HF) necessitates continuous patient monitoring for effective management.
• Current monitoring methods often require hospitalization or frequent clinical visits.
• Physicians require accessible tools to track HF patient biomarker evolution remotely.

Purpose of the Study:

• To systematically review wearable bioimpedance (BI) devices for real-time heart failure (HF) monitoring.
• To outline essential design and implementation specifications for practical medical use.
• To identify key challenges and approaches in developing BI-based HF monitoring systems.

Main Methods:

• Systematic literature review of wearable BI devices for HF.
• Analysis of BI applications in heart failure management.
• Evaluation of sensing techniques, impedance specifications, electrode selection, and device design factors (portability, communication, power).

Main Results:

• Bioimpedance (BI) is a viable non-invasive technology for sensing physiological variables in portable systems.
• Key specifications for wearable BI devices in HF monitoring include sensing technique, impedance parameters, electrode choice, portability, communication, and power consumption.
• Various design and implementation strategies by engineering and clinical teams were identified.

Conclusions:

• Wearable BI devices present a promising, non-expensive, and non-invasive approach for remote heart failure monitoring.
• Optimizing device design and implementation is crucial for effective clinical application and patient management.
• Further research is needed to address current challenges in wearable BI technology for HF.