preejection

preejection

/pre·ejec·tion/ (-e-jek´shun) occurring prior to ejection.
References in periodicals archive ?
Pregnant women (N = 156) completed self-report mindfulness and emotional distress questionnaires, and had their autonomic function assessed in their first and third trimesters, including heart rate (HR), indices of heart rate variability (HRV), preejection period (PEP), and systolic (SBP) and diastolic blood pressure (DBP).
The time difference between from the onset of QRS to the onset of aortic flow and from the onset of QRS to the onset of pulmonary flow defined as preejection time was measured by standard pulsed Doppler and determined interventricular dyssynchrony.
Comparing low frequency heart rate variability and preejection period: Two sides of a different coin.
Interventricular dyssynchrony (IVDys), represented by the preejection period difference between pulsed wave Doppler flow in the aorta and pulmonary artery, correlates with QRS duration and typically exceed 40ms in patients with wide QRS (18).
The diameter was measured in the ultrasound M mode operating at a speed of 25 mm/s, and the diastolic diameter of the investigated arteries was determined as the smallest lumen diameter directly after the R peak in the ECG in the preejection phase.
Cardiac preejection period (PEP), thought to reflect sympathetic activation of the heart, and respiratory sinus arrythmia (RSA), thought to reflect vagal activity to the heart, were measured.