妊娠晚期瘢痕子宫下段厚度的影响因素分析

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Abstract Objective: To explore the influencing factors of the lower uterine segment thickness after cesarean delivery during the third trimester of pregnancy. Methods: 74 pregnant women undergone magnetic resonance imaging (MRI) examination at third-trimester in our hostipal from June 2011 to December 2013 were include, 34 with a history of cesarean delivery and 40 control subjects with a history of vaginal delivery, the lower uterine segment thickness was measured on MRI. The maternal age, gestational age, previous cesarean, numbers of cesareans, interval time after cesarean influence on the lower uterine segment thickness were emphatically analyzed with a linear regression model. Results: The lower uterine segment was significantly thinner in women with a previous cesarean delivery compared with control subjects (3.34±0.71 versus 3.97±1.08 mm, P<0.05). In a linear regression model, the only variable retaining significance in the prediction of uterine wall thickness was previous cesarean delivery (P<0.05). Maternal age, gestational age, number of cesareans, and interval time after cesarean did not attain significance in the model (P>0.05). Conclusion: The previous cesarean delivery is the main factor influencing the lower uterine segment thickness after cesarean delivery during the third trimester of pregnancy.

Key words： magnetic resonance imaging cesarean section lower uterine segment thickness influencing factors

Received: 21 January 2015

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	FU Yuchuan
	LIU Qian
	HUANG Ya’nan
	ZHU Huanle
	LIU Kun
	YAN Zhihan.

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https://xb.wmu.edu.cn/EN/ OR https://xb.wmu.edu.cn/EN/Y2015/V45/I11/819

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