代谢标度与双胎盘
Metabolic scaling and twin placentas.
作者信息
Salafia C M, Kiryankova N, Inany H, Charlagorla P, Park M, Khawar N, VanHorn S, Dygulska B, Narula P, Lederman S
机构信息
Obstetrics and Gynecology, NewYork Methodist Hospital, Brooklyn, NY, USA.
Obstetrics and Gynecology, NewYork Methodist Hospital, Brooklyn, NY, USA.
出版信息
Placenta. 2016 Jan;37:16-8. doi: 10.1016/j.placenta.2015.11.010. Epub 2015 Nov 27.
OBJECTIVE
Do monochorionic (MC) and/or dichorionic (DC) twins show allometric scaling between placental and birth weight (PW, BW)?
METHODS
We extracted BW, PW, gestational age (GA) and cord insertion type from 52 MC to 310 DC twins to calculate β. DC twins were analyzed as summed and as individuals if placentas were separate.
RESULTS
Mean β for MC (0.78 ± 0.02), DC summed (0.78 ± 0.02), and DC with separate placentas (0.77 ± 0.03 and 0.76 ± 0.04) all non-significant. GA, summed BWs, total PW, BW discordance, and cord insertion sites did not differ between twin types or with β.
CONCLUSION
MC and DC twins show allometric scaling similar to singletons.
目的
单绒毛膜（MC）和/或双绒毛膜（DC）双胎的胎盘重量（PW）与出生体重（BW）之间是否存在异速生长比例关系？
方法
我们从52例MC双胎至310例DC双胎中提取了BW、PW、孕周（GA）和脐带插入类型，以计算β值。如果胎盘是分开的，DC双胎作为总和以及个体进行分析。
结果
MC双胎的平均β值（0.78±0.02）、DC双胎总和的平均β值（0.78±0.02）以及胎盘分开的DC双胎的平均β值（0.77±0.03和0.76±0.04）均无统计学意义。双胎类型之间或与β值相比，GA、总和BW、总PW、BW不一致性以及脐带插入部位均无差异。
结论
MC和DC双胎显示出与单胎相似的异速生长比例关系。
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