Циркадианные особенности симпатико-парасимпатического взаимодействия по данным спектральных составляющих ритма сердца у беременных и родильниц в перинатальном периоде

Abstract

By means of daily ECG monitoring on the device “Kardiоtechnika-06” (Inkart Ltd, St. Petersburg, Russia) the authors studied the character of sympathetic and parasympathetic interaction as correlation of the percentage inputs of high frequency (HF), low frequency (LF), and very low frequency (VLF) spectrum components of the heart rate variability in 73 pregnant women aged of 27.7+6.1 years in perinatal period (before and after the delivery). The control group consisted of 30 healthy non-pregnant women aged 32.8+7.6 years on average. It was revealed that the daily dynamics of sympathetic and parasympathetic interaction in pregnant and the puerperas in perinatal period was similar to the control group of women provided that the delivery was without complications. The dynamics was characterized by the increase of parasympathetic effects at the night time and the increase of sympathetic ones at the day time. The time period between 6.00 a.m. and 9.00 a.m. is especially important for the functional condition of the vegetative nervous system in the perinatal period of both pregnant women and puerperas as far as sharp changes in the sympathetic and parasympathetic interaction were noted. Throughout 24 hours period in the perinatal period, the sympathetic and parasympathetic interaction is characterized by considerable changes in the puerperas in comparison with the pregnant women. The revealed feature of daily dynamics of heart rate variability in the pregnant women and the puerperas provide the physiological conditions to optimize the cycle of sleeping and wakeful states in the women in perinatal period.