Sampaio F J, Anderson K M, Favorito L A
Laboratoire de Recherche Urinaire et Génitale, Université d'Etat de Rio de Janeiro, UERJ, Brésil.
J Urol (Paris). 1997;103(1-2):20-3.
To analyze the incidence of renal arteries variations during the fetal period and compare these findings with previous findings in adults, we studied the renal arterial pedicle in 70 human fetuses ranging in age from 13 to 36 weeks postconception. The fetuses were injected through the right common carotid artery with a red polyester resin to fill in the arterial tree enabling the identification and dissection of the small fetal arteries. The renal arteries were analyzed considering their number, origin, direction and site of penetration. Among the 70 fetuses studied, 30 (42.8%) presented at least one kidney with renal artery variations. In 6 fetuses the variation was bilateral. Among the total of 140 renal pedicles studied, 36 presented arterial variations (25.7%). We did not find statistically significant difference between right and left kidneys and between male and female fetuses. In the present study we did find kidneys with more than 2 arteries, probably because we did not study kidneys with any kind of development anomaly. Even kidneys with malrotations of the vertical axis were removed from the study.
为了分析胎儿期肾动脉变异的发生率，并将这些结果与先前成人的研究结果进行比较，我们研究了70例孕龄为孕13至36周的人类胎儿的肾动脉蒂。通过右颈总动脉向胎儿注射红色聚酯树脂以充盈动脉树，从而能够识别和解剖胎儿的小动脉。从肾动脉的数量、起源、走行和穿入部位对其进行分析。在所研究的70例胎儿中，30例（42.8%）至少有一侧肾脏存在肾动脉变异。6例胎儿为双侧变异。在总共研究的140个肾蒂中，36个存在动脉变异（25.7%）。我们未发现左右肾之间以及男、女胎儿之间存在统计学上的显著差异。在本研究中，我们确实发现了有两条以上动脉的肾脏，这可能是因为我们未研究任何有发育异常的肾脏。甚至垂直轴旋转不良的肾脏也被排除在研究之外。
