Determination of Gestational Age by Fetal Kidney Length Measurement in Uncomplicated Pregnancy in a Tertiary Care Centre

Journal of Perinatal Society of Nepal Pub Date : 2023-06-01 DOI:10.59881/jpeson7

U. Khanal, Akash Kumar Chaurasia, Birendra Raj Joshi, A. Jha

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Abstract

Introsution: Gestational age of fetus is estimated by including various biometric parameters. Newer parameters like fetal kidney length have not been studied in Nepalese population. Objective: To determine gestational age by fetal kidney length measurement after the 20th week of gestation in healthy women with uncomplicated pregnancy. Method: Obstetric sonography was performed in 108 pregnant women with regular menstrual cycles, known menstrual age and uncomplicated pregnancy from 20 weeks to term. Fetal kidney length was evaluated as a measure to calculate the predicted gestational age. Results: The study showed mean fetal kidney length at 20-24, 25-29, 30-34 and 35-37 weeks gestation 22.5 ± 0.5, 26.9 ± 0.7, 32.32 ± 0.7 and 36.3 ± 0.6 mm, respectively. Overall, in second and third trimester, fetal kidney length showed strong linear correlation with gestation age with highest significant Pearson correlation coefficient of 0.989 as compared to other parameters (BPD=0.986, HC=0.976, AC= 0.971, FL= 0.984). Conclusion: Fetal kidney length can be used as a reliable parameter for determination of gestational age.

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在三级保健中心通过胎儿肾脏长度测量测定无并发症妊娠的胎龄

胎儿的胎龄是通过包括各种生物特征参数来估计的。较新的参数，如胎儿肾脏长度，尚未在尼泊尔人群中进行研究。目的:探讨健康无并发症妊娠妇女妊娠20周后测定胎儿肾长确定胎龄的方法。方法:对108例月经周期正常、月经年龄已知、妊娠20周至足月无并发症的孕妇进行产科超声检查。评估胎儿肾脏长度作为计算预测胎龄的一项措施。结果:妊娠20 ~ 24周、25 ~ 29周、30 ~ 34周、35 ~ 37周胎儿平均肾长分别为22.5±0.5、26.9±0.7、32.32±0.7、36.3±0.6 mm。总体而言，在妊娠中晚期，胎儿肾脏长度与胎龄呈较强的线性相关，与其他参数相比，Pearson相关系数最高，为0.989 (BPD=0.986, HC=0.976, AC= 0.971, FL= 0.984)。结论:胎儿肾长可作为确定胎龄的可靠指标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Perinatal Society of Nepal

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