Complementary Domain Hypothesis

How it works

Risks & contraindications

Comparisons

Evidence quality

Highlighted claims

• The Complementary Domain Hypothesis treats ECG and PPG as smooth observations of the same latent cardiac state. — Cardiac Stability Theory: An Axiomatically Grounded Framework for Continuous Cardiac Health Monitoring via Smartphone Photoplethysmography
• CDH does not predict uniformly high transfer because PPG is affected by pulse transit time and peripheral vascular factors. — Cardiac Stability Theory: An Axiomatically Grounded Framework for Continuous Cardiac Health Monitoring via Smartphone Photoplethysmography
• Direct paired BIDMC validation gave partial support to CDH with moderate ECG-PPG CSI correlations. — Cardiac Stability Theory: An Axiomatically Grounded Framework for Continuous Cardiac Health Monitoring via Smartphone Photoplethysmography
• The Lyapunov term was the main cross-modal carrier, while recurrence and entropy transferred poorly. — Cardiac Stability Theory: An Axiomatically Grounded Framework for Continuous Cardiac Health Monitoring via Smartphone Photoplethysmography
• The findings do not support full interchangeability of ECG-derived and PPG-derived CSI. — Cardiac Stability Theory: An Axiomatically Grounded Framework for Continuous Cardiac Health Monitoring via Smartphone Photoplethysmography