Abstract Objective To study the changing trend of abdominal regional oxygen saturation (A-rSO2) in very/extremely low birth weight (VLBW/ELBW) infants after birth. Methods The VLBW/ELBW infants who were admitted to the neonatal intensive care unit from September 2019 to May 2021 were enrolled as subjects. Near-infrared spectroscopy was used to monitor A-rSO2 since day 1 after birth for 4 weeks. According to gestational age, the infants were divided into a low gestational age (<29 weeks) group and a high gestational age (≥29 weeks) group. The two groups were compared in terms of A-rSO2 within 4 weeks after birth. Results A total of 63 VLBW/ELBW infants were enrolled, with 30 infants in the <29 weeks group and 33 in the ≥29 weeks group. A-rSO2 fluctuated within the first 2 weeks after birth in the 63 infants and had the lowest level of 47.9% on day 1 after birth and then gradually increased, reaching the peak level of 67.4% on day 4; it gradually decreased on days 5-9, then gradually increased, and became relatively stable 2 weeks after birth. The ≥29 weeks group had significantly higher A-rSO2 than the <29 weeks group at weeks 1 and 2 after birth (P<0.05), while there was no significant difference in A-rSO2 between the two groups at weeks 3 and 4 after birth (P>0.05). Conclusions In infants with VLBW/ELBW, A-rSO2 fluctuates within the first 2 weeks after birth and then gradually becomes stable. A-rSO2 is associated with gestational age within 2 weeks after birth.
ZHANG Jing-Hua,GUAN Rui-Lian,PAN Pian-Pian et al. Changing trend of abdominal regional oxygen saturation in very/extremely low birth weight infants in the early postnatal stage: a prospective study[J]. CJCP, 2021, 23(10): 1015-1020.
ZHANG Jing-Hua,GUAN Rui-Lian,PAN Pian-Pian et al. Changing trend of abdominal regional oxygen saturation in very/extremely low birth weight infants in the early postnatal stage: a prospective study[J]. CJCP, 2021, 23(10): 1015-1020.
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