THE CENTRAL AND CEREBRAL HEMODYNAMICS PECULARITIES IN EXTREMELY LOW AND LOW BIRTH WEIGHT INFANTS
DOI: 10.22138/2500-0918-2018-15-5-668-676
O.P. Kovtun, O.A. Kraeva, P.B. Tsyvian
Ural State Medical University, Yekaterinburg, Russian Federation;
Mather and Child Care Research Institute, Yekaterinburg, Russian Federation
Abstract. This study was undertaken to establish the developmental peculiarities of central and cerebral hemodynamics in preterm infants of different gestational ages. Echocardiography and Doppler assessment of cerebral circulation was performed in 115 preterm newborn infants: 25 with extremely low birth weight (LBW), 45 babies with very low BW and 45 infants with LBW at 7th and 28th days of life. A significant increase in end-systolic and end-diastolic LV parameters and constant LV ejection fraction were demonstrated during this period. This can be explained by limitation of LV contractile reserve in preterm infants. The increase in cerebral circulation speed was in parallel with blood pressure increase. Cerebral circulation depends on age, body weight and degree of baby maturation which reflects the transition of cerebral circulation at hypoxic damage and recovery.
Keywords: preterm newborn infants, central and cerebral hemodynamics, neonatal period
There is no conflict of interest.
Contact information of the author responsible for correspondence:
Pavel B. Tsyvian
pavel.tsyvian@gmail.com
Received 04.05.2018
For citation:
Kovtun O.P., Kraeva O.A., Tsyvian P.B. The central and cerebral hemodynamics pecularities in extremely low and low birth weight infants. Vestn. Ural. Med. Akad. Nauki. = Journal of Ural Medical Academic Science. 2018, Vol. 15, no. 5, pp. 668–676. DOI: 10.22138/2500-0918-2018-15-5-668-676 (In Russ)
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Authors
Olga P. Kovtun
Ural State Medical University
Dr. Sci. (Med.), Professor, Corresponding member RAS, University Rector
Russian Federation, Yekaterinburg, Repin str. 3
kovtun@usma.ru.
Olga A. Kraeva
Mother and Child Care Research Institute
Cand.Sci. (Med.), Senior Researcher, Head of Department
Russian Federation, Yekaterinburg, Repin str.1
olalkra@yandex.ru
Pavel B. Tsyvian
Ural State Medical University
Dr. Sci. (Med.), Professor, Head of Department
Russian Federation, Yekaterinburg, Repin str. 3
pavel.tsyvian@gmail.com