Thurmond A S, Harvey W J, Smith S A
Imaging Department, Legacy Meridian Park Hospital, Tualatin, Oregon 97062, USA.
J Ultrasound Med. 1999 Jan;18(1):13-6; quiz 17-8. doi: 10.7863/jum.1999.18.1.13.
A previously undescribed cause of abnormal uterine bleeding is presented. Nine of 310 women evaluated by sonohysterography for abnormal bleeding demonstrated an 8 to 17 mm gap in the anterior lower uterine segment myometrium at the site of prior cesarean deliveries. All women were premenopausal and had a history of 2 to 12 days of postmenstrual spotting. Presumably a lack of coordinated muscular contractions occurs around the cesarean scar, allowing the defect to collect menstrual debris. Subsequently, the debris leaches out through the cervix for several days after the majority of menstrual flow has ceased.
本文介绍了一种此前未被描述的异常子宫出血原因。在接受子宫超声造影评估异常出血的310名女性中，有9名在既往剖宫产部位的子宫下段前壁肌层出现了8至17毫米的间隙。所有女性均处于绝经前，有月经后点滴出血2至12天的病史。据推测，剖宫产瘢痕周围缺乏协调的肌肉收缩，使得缺损处积聚月经碎片。随后，在大部分月经血流停止后的数天里，这些碎片通过宫颈排出。
