У новорожденных с тяжелой интранатальной асфиксией отмечается нарушение адаптации системы ге мостаза, в связи с этим они имеют высокий риск кровотечений в течение первых суток жизни.Цель исследования -оценить влияние перенесенной тяжелой асфиксии в родах и метаболического ацидоза на состояние системы гемостаза у новорожденных.Материалы и методы. Провели ретроспективный анализ историй болезни 40 новорожденных, рож денных в тяжелой асфиксии (1 я группа), и 20 «здоровых» новорожденных (2 я группа). Исследование проводили в течение первого часа жизни новорожденных на основе использования метода тромбоэлас тографии (ТЭГ).Результаты. У новорожденных 1 ой группы выявили сниженную активность тромбоцитов и энзимати ческой части коагуляции. Энзиматическая часть коагуляционного гемостаза (р<0,001) и кинетика увеличе ния прочности сгустка (р<0,01) значительно снижены у 1 й группы новорожденных в сравнении со 2 й группой. Скорость роста фибриновой сети и ее структурообразование (р<0,05) у новорожденных 1 й груп пы ниже, чем у новорожденных 2 й группы. Активность тромбоцитов у новорожденных 1 й группы, сниже на по сравнению со 2 й группой (р<0,05). Фибринолиз на 30 й минуте исследования у новорожденных не отличается. Корреляционный анализ показал, что снижение рН, Bе и гиперлактатацидоз имеют корреляци онную связь с изменением тромбоцитарного и коагуляционного гемостаза в сторону гипокоагуляции.Выводы. Тромбоэластографическое исследование нативной крови показало сдвиг системы гемостаза в сторону гипокоагуляции, как тромбоцитарной так и энзиматической части гемостаза, без изменений про цессов лизиса сгустков у новорожденных, рожденных в тяжелой асфиксии. Ключевые слова: гипоксически ишемическая энцефалопатия; тяжелая асфиксия в родах; метаболичес кий ацидоз; тромбоэластография; новорожденные; гемостазIn newborns with severe intranatal asphyxia, the hemostasis system adaptation is impaired, thus increasing the risk of bleeding during the first day of life.The purpose of the work was to evaluate the effect of severe birth asphyxia and metabolic acidosis on the new borns' hemostasis system, based on the thromboelastography (TEG) findings.Materials and methods. A retrospective analysis of medical records of 40 severely asphyxiated newborns (group 1) and 20 healthy newborns (group 2) was performed. The study was carried out during the first hour of life of the newborns.Results. Infants in group 1 demonstrated a reduced activity of platelets and enzymatic components of the coagulation. The enzymatic phase of the coagulation hemostasis (P<0.001) and the kinetics of clot strength growth significantly decreased in group 1 newborns, as compared to the second group (P<0.001 and P<0.01, respective ly). The fibrin network growth rate and its structurization in group 1 newborns was lower than that in group 2 newborns (P<0.05). The platelet activity in group 1 infants was reduced as compared to group 2 (P< 0.05). Fibrinolysis in newborns did not differ at the 30th minute of the study. The correlation analysis demonstrated that Влияние тяжело...
Background. Newborn infants who have undergone severe birth asphyxia have a high risk of neurological disorders and death. The most effective method for the treatment of hypoxic ischemic encephalopathy caused by intrapartum asphyxia is therapeutic hypothermia, or targeted temperature management. Currently, there are no large studies comparing its different methods, therefore the aim of our study was to compare the effectiveness of device-induced and uncontrolled therapeutic hypothermia in newborn infants who underwent intrapartum asphyxia.Materials and methods. Study design: we conducted a retrospective, longitudinal, cohort study in 39 newborn infants born in severe asphyxia and receiving uncontrolled therapeutic hypothermia (group 1), and in 48 newborn infants born in severe asphyxia and receiving device-induced therapeutic hypothermia (group 2). Statistical data processing was carried out using standard techniques.Results. The body temperature in newborn infants of both groups was reduced to 33.5 °C within the first hour, but when using uncontrolled therapeutic hypothermia, the body temperature fluctuated from 32 to 35 °C. Device-induced therapeutic hypothermia has a more effective neuroprotective effect as compared to uncontrolled hypothermia (p< 0.05) and more rapidly stabilizes metabolism in newborns due to a decrease in lactate levels (p < 0.05). In newborns device-induced therapeutic hypothermia stabilizes hemodynamics more quickly compared to uncontrolled therapeutic hypothermia (p < 0.05). Device-induced therapeutic hypothermia reduces the period of hospitalization in the neonatal intensive care unit (p < 0.05), the risk of cerebral edema (p < 0.05) and of the repeated episodes of seizures (p < 0.05). Conclusion. Using uncontrolled therapeutic hypothermia causes a high risk of unintentional fluctuations in rectal temperature towards both hypothermia and rewarming, which can aggravate the severe condition of newborn infants. Device-induced therapeutic hypothermia has a more effective neuroprotective effect.
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