Effect of variations of heart rate within the normal range on renal artery Doppler indices in nonpregnant and pregnant women. J Clin Ultrasound 1993;21:507-510.Kublickas M, Randmaa I, Lunell N, Westgren M. Effect of variation of heart rate within the normal range on renal artery doppler...
Changes in heart rate in the first minutes after birth The normal range of heart rate (HR) in the first minutes after birth has not been defined. Objective To describe the HR changes of healthy newborn infants ... J Dawson,C Kamlin,C Wong,... - 《Arch Dis Child Fetal Neonatal Ed》...
The normal adult respiration rate (RR) is 12–20 per minute, and the heart rate (HR) is 60–100 beats per minute (bpm). Heart rate and respiration rate are closely related to people's life and health. By monitoring the heart rate and respiration rate in the resting state, a person'...
This updated guideline replaces the “Guideline for the application of heart rate and heart rate variability in occupational medicine and occupational health science” first published in 2014. Based on the older version of the guideline, the authors have
within the normal range of blood pressures even at rest and their discharge activity is quite regular and encodes mean arterial pressure, as well as the rate of rise and amplitude of the pressure pulse. A much larger number of arterial baroreceptors are C-type and conduct more irregular discha...
Fetal heart rate in early pregnancy and chromosomal disorders Objective To investigate normal fetal heart rate in early pregnancy and assess the hypothesis that abnormal fetal heart rate is associated with fetal chrom... J.M.M. Van Lith,GHA Visser,A Mantingh,... - 《British Journal of ...
The normal QT interval depends on the heart rate, and it is typically corrected (QTC) using vari- ous correction formulas [24]. T-wave amplitude (TWA) is the highest peak of the T-wave. ST angle is the angle between the baseline and the first 80 ms of the ST seg- ment. ...
Heart rate (HR) and HR variability were studied in 15 normal infants and 6 infants with aborted Sudden Infant Death Syndrome (SIDS) during sleep at monthly intervals through 4 months of age. The RR interval (inverse of heart rate) was measured to an accuracy of 0.2 msec. Sleep was ...
Rate Assessment of the fetal heart rate begins with the finding that the normal heart rate (± 2 standard deviations) is 120 to 160 beats/minute (see Fig. 17.11).191,231 Abnormalities of baseline fetal heart rate are suspicious, but in the absence of disturbances of beat-to-beat variability...
The aim of this study was to demonstrate the temporal profile of changes in heart rate variability (HRV), blood pressure variability (BPV), and cardiac baroreflex sensitivity (BRS) during the course of a healthy pregnancy. Materials and methods This was a longitudinal study during which autonomic...