Effect of non–invasive ventilation on central and brain hemodynamics in term newborn infants with hypoxic–ischemic encephalopathy

Abstract

The aim of the research. To study the effect of invasive and non-invasive lung ventilation in full-term infants with moderate and severe HIE on cerebral perfusion and central hemodynamics. Materials and methods. To study the effect of non – invasive lung ventilation on central hemodynamics and cere-bral perfusion, 60 infants with moderate and severe YIE were examined, thirty of them had early tracheal extu-bation 72 hours after birth and were transferred to non–invasive nasal lung ventilation with intermittent positive pressure (NIPPV), another 30 new-borns formed a comparison group. They had a traditional MV. Results. No differences were found between the mean blood pressure and heart rate in the newborn core and comparison group, both during the first day of stay and during the fourth day, when the core group infants were extubated and transferred to NIPPV, but the mean BP level increased significantly after the core group infants were transferred to NIPPV, compared to the values of this indicator during the first day (p<0.05). The study of central hemodynamics indices in the new-born infants of the main group within a day after extubation and transfer to NIPPV did not reveal any differences in comparison with the new-born comparison groups. Stroke volume, heart index and left ventricular ejection fraction did not differ in the main group and comparison group. When studying the effect of non-invasive lung ventilation on brain perfusion, no reliable differences between the study groups were also found. Conclusions. No statistical difference was found between НI and EF in the main group and the comparison group, respectively. Non-invasive ventilation in NIPPV mode does not affect cerebral perfusion indices com-pared to conventional ventilation NIPPV and can be used in intensive care of new-borns with HIE.