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枕横位中前不均倾位(简称前不均倾位)是指胎头前顶骨先入盆。由于耻骨弓内面平直,使后顶骨架在骶岬上,虽无头盆不称,但胎头旋转受阻,难以入盆。若宫缩加强,胎头侧屈加重(即使前顶骨和耳部滑过耻骨联合后,前肩抵于耻骨联合上方),则导致难产,但迄令仍没有被广大基层产科医生重视。为此,我们收集75例临床资料进行整理分析。
Occipital transverse position before the uneven dumping (referred to as the former uneven dumping) refers to the fetal head before the parietal bone into the basin. Due to the straight surface of the pubis bow, so that the top of the backbone of the sacral promontory, although no head basin is not known, but the rotation of the fetal head blocked, difficult to basin. If the contractions strengthened, fetal head flexion (even if the anterior parietal and ear sliding over the pubic symphysis, the front shoulder to the pubic symphysis above), then lead to dystocia, but as yet still not the majority of grassroots obstetricians attention. To this end, we collected 75 cases of clinical data for finishing analysis.