Pezzati M, Danesi G, Pozzessere A, Cosenza E B, Rubaltelli F F
Department of Pediatrics, University of Firenze School of Medicine, Italy.
Biol Neonate. 1998;73(1):19-23. doi: 10.1159/000013955.
Measurements of renal artery blood flow velocity have been previously reported during prenatal life and during the first month of life in neonates. Since renal flow velocity increases during the first 3 days of postnatal age we determined, during the fourth day of life, the changes of renal blood flow velocity in relation to gestational age and birth weight in 109 healthy preterm and term infants with gestational age between 26 and 42 weeks and birth weight between 750 and 3,730 g. Renal arteries were insonated about 3 mm from the abdominal aorta, by placement of a microconvex 7-MHz transducer below the costal margin in the dorsolateral area of the right or left flank. Mean flow velocity significantly increased with advancing of gestational age and birth weight. This study provides normative data for renal artery blood flow velocity in healthy preterm and term infants during the fourth day of life.
此前已有关于产前及新生儿出生后第一个月肾动脉血流速度的测量报告。由于出生后前3天肾血流速度会增加，我们在出生后第4天，对109名健康的早产和足月儿进行了研究，这些婴儿的胎龄在26至42周之间，出生体重在750至3730克之间，以确定肾血流速度与胎龄和出生体重的关系。通过将一个7兆赫的微凸探头放置在右侧或左侧胁腹背外侧区域的肋缘下方，在距腹主动脉约3毫米处对肾动脉进行超声检查。平均血流速度随着胎龄和出生体重的增加而显著增加。本研究提供了健康早产和足月儿出生后第4天肾动脉血流速度的正常数据。
