Normative Values of Cerebral Blood Flow Velocities in Very Low Birth Weight Neonates During First 28 Days of Life
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Date
2024-09
Journal Title
Journal ISSN
Volume Title
Publisher
The Indian Academy of Pediatrics
Abstract
Objective: To determine the normative values of cerebral blood flow (CBF) velocities in very low birth weight (VLBW) neonates during the first 28 days of life. Methods: In this prospective observational study, doppler assessment of CBF velocities was performed from the anterior cerebral artery (ACA), middle cerebral artery (MCA) and basilar artery (BA) at 2-8 hours, 24 hours, day 3, 7, 14 and 28 of life. Neonates with gross congenital malformations, those requiring extensive resuscitation at birth, mechanical ventilation with mean airway pressure >12 mbar, requiring inotropes, or those who developed intraventricular hemorrhage (grade II or more) were excluded. Results: A total of 103 VLBW neonates were enrolled, in whom 1178 doppler measurements were recorded. The mean (SD) peak systolic velocity, end diastolic velocity and mean velocity (cm/s) in ACA increased from 26.53 (8.56) to 51.35 (9.36), 9.22 (2.91) to 13.9 (3.24) and 17.75 (3.97) to 25.84 (3.27) respectively from 2 to 8 hours to day 28 of life. In MCA and BA also, CBF velocities increased with post-natal age. Conclusion: We report normative data of CBF velocities in VLBW neonates in first 28 days of life.
Description
Keywords
End diastolic velocity, Mean velocity, Peak systolic velocity
Citation
Thakur Anup, Jain Parul, Modi Manoj, Singh Anita, Kansal Bharat, Kler Neelam . Normative Values of Cerebral Blood Flow Velocities in Very Low Birth Weight Neonates During First 28 Days of Life. Indian Pediatrics. 2024 Sep; 61(9): 835-838