Estimation of Pulse Transit Time as a Function of Blood Pressure Using a Nonlinear Arterial Tube-Load Model
Key result
A novel technique estimating pulse transit time as a function of blood pressure yielded bias and precision errors in mean BP of 5.1 ± 0.9 and 6.6 ± 1.0 mmHg during hemodynamic interventions.
Population
Animals and patients
Design
Other
Authors
Discussion
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Member takes
Implication
Supports PTT-based BP estimation in research; leaves open clinical adoption pending larger validation studies.
Structured PICO
P
Population
Animals and patients
E
Exposure
A mathematical technique using a nonlinear arterial tube-load model to estimate pulse transit time (PTT) as a function of blood pressure (BP) from proximal and distal BP waveforms
O
Outcome
Bias and precision errors in mean BP during hemodynamic interventionssurrogate
The new technique allows estimation of pulse transit time throughout the cardiac cycle, potentially improving arterial stiffness monitoring and enabling cuff-less blood pressure monitoring.
Cite This Study
Gao et al. (2016) studied this question. Technique to estimate pulse transit time as a function of blood pressure was evaluated on Bias and precision errors in mean blood pressure. A novel technique estimating pulse transit time as a function of blood pressure yielded bias and precision errors in mean BP of 5.1 ± 0.9 and 6.6 ± 1.0 mmHg during hemodynamic interventions.