Sawyer E, Ofuasia E, Ofili-Yebovi D, Helmy S, Gonzalez J, Jurkovic D
Early Pregnancy and Gynaecology Assessment Unit, King's College Hospital, London, UK.
Ultrasound Obstet Gynecol. 2007 Feb;29(2):205-9. doi: 10.1002/uog.3914.
To identify ultrasound measurements that are the best predictors of the presence of retained products of conception (RPOC) within the uterine cavity in women with clinical diagnosis of incomplete miscarriage.
This was a prospective observational study, set in a dedicated early pregnancy assessment unit in a London teaching hospital. Endometrial thickness and the volume of suspected retained products of conception were measured by transvaginal ultrasound scan preoperatively. Indications for surgical intervention were heavy vaginal bleeding or continuous bleeding lasting > 7 days. The main outcome measure was histological evidence of chorionic villi in surgical specimens.
Among the patients, 109 (85%) had evidence of chorionic villi on histology, whilst decidua was only found in the remaining 19 (15%). There was no identifiable cut-off for endometrial thickness or volume that could be used to differentiate between retained products of conception and decidua.
Measurements of endometrial thickness or volume on ultrasound scan are not good tests for diagnosing an incomplete miscarriage.
确定在临床诊断为不全流产的女性中，超声测量值对子宫腔内妊娠物残留（RPOC）存在情况的最佳预测指标。
这是一项前瞻性观察性研究，在伦敦一家教学医院的专门早期妊娠评估单元进行。术前通过经阴道超声扫描测量子宫内膜厚度和疑似妊娠物残留的体积。手术干预的指征为阴道大量出血或持续出血超过7天。主要结局指标是手术标本中绒毛膜绒毛的组织学证据。
在患者中，109例（85%）组织学检查有绒毛膜绒毛证据，而仅在其余19例（15%）中发现蜕膜。对于子宫内膜厚度或体积，没有可用于区分妊娠物残留和蜕膜的可识别临界值。
超声扫描测量子宫内膜厚度或体积并非诊断不全流产的良好检测方法。
