Evaluation of respiratory modulation on the pulse wave amplitude in low-birth-weight neonate.
A slow oscillation of sympathetic vasoconstriction (Mayer waves) which is affected by the respiratory movements seems to appear as the fluctuation of pulse wave amplitude (PPG.P-P) in the frequency domain (0.1 Hz). Whether the vasomotor in low frequency has appeared in the pulse wave of the neonate and whether Mayer waves appear as the pulse wave oscillation of the immature low-birth-weight neonate are not fully understood from the point of autonomic nerve regulation mechanism. We therefore analyzed the frequency characteristics of PPG.P-P, respiration wave and its amplitude (RW.P-P) together with the heart rate variability (HRV) to examine the relationships between the frequency spectra.
Miyata
Masafumi
M
Department of Pediatrics, School of Medicine, Fujita Health University.
Sano
Yoko
Y
Suzuki
Kenji
K
Yamazaki
Toshio
T
Nagaoka
Shunji
S
Hata
Tadayoshi
T
D017704:Baroreflex / Q000502:physiology; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D007230:Infant, Low Birth Weight / Q000502:physiology*; D007231:Infant, Newborn / Q000502:physiology*; D012143:Respiratory Physiological Phenomena; D013564:Sympathetic Nervous System / Q000502:physiology; D014661:Vasoconstriction / Q000502:physiology*