The pre-ejection period is a highly stress dependent parameter of paramount importance for pulse-wave-velocity based applications

ABSTRACT:

Purpose

The pulse-wave-velocity, is used for indirect, cuff-less, continuous blood pressure estimation. It is commonly detected by measuring the time delay between a defined point in an ECG and the arrival of the peripheral pulse wave (e.g., oxygen saturation sensor). The period between electrical stimulation of the heart (ECG) and actual blood ejection from the heart is called the pre-ejection period (PEP). This study aims at characterizing the PEP under mental and physical stress with focus on its relations to other cardiovascular parameters such as heart rate and importance for blood pressure (BP) estimation.

Methods

We measured the PEP in 71 young adults at rest, under mental (TSST) and physical stress (ergometer) via impedance-cardiography.

Results

The PEP i

SUBMITTER:  

PROVIDER: S-EPMC9975268 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature