Barzilay Eran, Shay Amir, Lahav-Ezra Hila, Shina Avi, Perlman Sharon, Achiron Reuven, Gilboa Yinon
a Department of Obstetrics and Gynecology , Chaim Sheba Medical Center , Tel-Hashomer , Israel.
b Sackler School of Medicine , Tel-Aviv University , Tel-Aviv , Israel.
J Matern Fetal Neonatal Med. 2018 Jul;31(14):1885-1888. doi: 10.1080/14767058.2017.1331428. Epub 2017 May 31.
No study thus far has evaluated the LUS thickness in active labor. In this study, we endeavored to assess the LUS during active labor.
Using transabdominal sonography in the mid-sagittal position with a full urinary bladder, the thickness of the LUS was measured during active labor phase in women with or without a history of a previous cesarean section.
A total of 28 women with a previous cesarean delivery were compared to 29 women without a history of uterine surgery. The median LUS was significantly thinner in women with a uterine scar both during (4 versus 5 mm, p = .001) and between contractions (5 versus 7 mm, p = .011). Paired comparison of LUS thickness between and during contractions within each group showed that thinning of LUS during contraction was significant for both the previous CS group (p < .001) and the control group (p < .001). We found no correlation between LUS thickness and chances of successful TOLAC.
In this study, we characterized for the first time the LUS during active labor. We found that LUS was significantly thinner in women after a previous CS and that the LUS was significantly thinner during contraction.
迄今为止，尚无研究评估活跃期分娩时子宫下段肌层（LUS）的厚度。在本研究中，我们试图评估活跃期分娩时的LUS。
在膀胱充盈的情况下，采用经腹超声在正中矢状位测量有或无剖宫产史的女性在活跃期分娩时的LUS厚度。
共有28例有剖宫产史的女性与29例无子宫手术史的女性进行比较。有子宫瘢痕的女性在宫缩时（4 vs 5 mm，p = .001）和宫缩间期（5 vs 7 mm，p = .011）的LUS中位数明显更薄。每组内宫缩时与宫缩间期LUS厚度的配对比较显示，宫缩时LUS变薄在既往剖宫产组（p < .001）和对照组（p < .001）均有统计学意义。我们发现LUS厚度与成功进行阴道试产（TOLAC）的几率之间无相关性。
在本研究中，我们首次描述了活跃期分娩时的LUS。我们发现既往剖宫产术后女性的LUS明显更薄，且宫缩时LUS明显更薄。
