Performance of ultrasound-based endometriosis staging system (UBESS) for predicting level of complexity of laparoscopic surgery for endometriosis.

OBJECTIVE: To develop and assess the performance of a preoperative ultrasound-based endometriosis staging system (UBESS) to predict the level of complexity of laparoscopic surgery for endometriosis. METHODS: This was a multicenter prospective and retrospective cohort study on consecutive women with suspected endometriosis who underwent laparoscopy between June 2009 and July 2013. Each woman underwent a systematic transvaginal ultrasound evaluation to assess the pelvis for different phenotypes of endometriosis, and the diagnostic performance of ultrasound for these different phenotypes was evaluated relative to the gold standard, laparoscopy. A three-stage preoperative UBESS was developed to assess the severity of pelvic endometriosis, based on the histological phenotypes of endometriosis, the anatomical locations of deep infiltrating endometriosis and their sonographic markers of local invasiveness. The three stages of UBESS (I-III) were then correlated with the three levels of complexity of laparoscopic surgery for endometriosis described by the Royal College of Obstetricians and Gynaecologists (Levels 1-3). The end-points were the diagnostic performance of UBESS to predict the level of complexity of laparoscopic surgery for endometriosis, i.e. UBESS stage I to predict Level-1 laparoscopic surgery, UBESS stage II to predict Level-2 laparoscopic surgery and UBESS stage III to predict Level-3 laparoscopic surgery. RESULTS: The analysis included 192 women, with a mean ± SD age at diagnosis of endometriosis of 23.7 ± 9.3 years and a mean duration of symptoms prior to presentation of 42 months. Predominant reported locations of pelvic pain were left iliac fossa (32%), right iliac fossa (29.5%) and lower abdomen (61%) and predominant symptoms included dyspareunia (57.5%), dysmenorrhea (58.5%) and dyschezia (41.5%). The accuracy, sensitivity, specificity, positive and negative predictive values and positive and negative likelihood ratios of UBESS I for predicting a requirement for Level-1 laparoscopic surgery were: 87.5%, 83.3%, 91.7%, 90.9%, 84.6%, 10 and 0.182; those of UBESS II for predicting Level-2 surgery were: 87.0%, 73.7%, 90.3%, 65.1%, 93.3%, 7.6 and 0.292; and those of UBESS III for predicting Level-3 surgery were: 95.3%, 94.8%, 95.5%, 90.2%, 97.7%, 21.2 and 0.054, respectively. CONCLUSION: UBESS could be utilized to predict the level of complexity of laparoscopic surgery for endometriosis. It has the potential to facilitate the triage of women with suspected endometriosis to the most appropriate surgical expertise required for laparoscopic endometriosis surgery. UBESS needs to be validated externally in multiple centers to assess its general applicability. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.

Interpreting the real-time dynamic 'sliding sign' and predicting pouch of Douglas obliteration: an interobserver, intraobserver, diagnostic-accuracy and learning-curve study.

OBJECTIVE: To determine inter- and intraobserver agreement, diagnostic accuracy and the learning curve required for interpreting the 'sliding sign' and predicting pouch of Douglas (POD) obliteration. METHODS: This was an inter-/intraobserver, diagnostic-accuracy and learning-curve study involving six observers with different medical backgrounds, clinical skill sets and prior gynecological ultrasound experience: five non-specialist observers who had performed 0-750 previous gynecological scans and an expert sonologist who had performed > 15 000. Following a formal theoretical and practical training session, they each viewed 64 offline transvaginal ultrasound (TVS) 'sliding-sign' videos from two anatomical locations (retrocervix and posterior uterine fundus (PUF)) in 32 women presenting with chronic pelvic pain, interpreting the videos as positive or negative for sliding sign and predicting, on that basis, the POD status. For intraobserver agreement analysis they re-analyzed the same video sets, in a different order, at least 7 days later. The expert sonologist was the reference standard for interpreting the sliding sign and the gold standard, laparoscopy, was used for the POD analysis. Learning-curve cumulative summation (LC-CUSUM) tests were conducted to assess if observer performance reached acceptable levels, using LC-CUSUM score < -2.45 as a cut-off. RESULTS: With respect to interpretation of the sliding sign, the overall multiple-rater agreement was moderate (Fleiss' kappa, K = 0.499). Observers were more consistent in their interpretation of the second compared with the first observation set (K = 0.547 vs 0.453) and for the retrocervical compared with the PUF region (K = 0.556 vs 0.346). Regarding prediction of POD status, the accuracy, sensitivity, specificity and positive and negative predictive values for individual observers ranged from 65.4 to 96.2%, 80.0 to 100%, 64.7 to 100%, 50.0 to 100% and 94.7 to 100%, respectively. Using LC-CUSUM score < -2.45, the observer with experience of 200 previous gynecological scans reached acceptable levels for predicting POD obliteration and interpreting the sliding sign at each region (retrocervix and PUF) at 39, 54 and 28 videos and the observer with experience of 750 scans at 56, 53 and 53 videos. CONCLUSIONS: Performance of a minimum number of gynecological ultrasound examinations is necessary for interpreting offline videos of the real-time dynamic sliding sign and predicting POD obliteration. Non-specialist observers with prior experience of 200 or more gynecological scans were more consistent in interpreting the sliding sign at the retrocervix vs PUF. Copyright © 2015 ISUOG. Published by John Wiley & Sons Ltd.

Systematic approach to sonographic evaluation of the pelvis in women with suspected endometriosis, including terms, definitions and measurements: a consensus opinion from the International Deep Endometriosis Analysis (IDEA) group.

The IDEA (International Deep Endometriosis Analysis group) statement is a consensus opinion on terms, definitions and measurements that may be used to describe the sonographic features of the different phenotypes of endometriosis. Currently, it is difficult to compare results between published studies because authors use different terms when describing the same structures and anatomical locations. We hope that the terms and definitions suggested herein will be adopted in centers around the world. This would result in consistent use of nomenclature when describing the ultrasound location and extent of endometriosis. We believe that the standardization of terminology will allow meaningful comparisons between future studies in women with an ultrasound diagnosis of endometriosis and should facilitate multicenter research. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.

Qualitative assessment of women's experiences with ECV.

UNLABELLED: For women with unsuccessful ECV, discussions about their mode of delivery should include the benefits and risks of a planned caesarean or vaginal breech birth. However, most obstetric units continue to offer only planned caesarean births when ECVs are unsuccessful despite the proven safety of vaginal breech births in selected patients. Such unit policies can be at variance with a woman's desire and preference for vaginal birth. Thus, a conflict situation arises that could have varying medical, emotional and cultural implications. AIM: To provide a consumer perspective on ECV from women who had an unsuccessful procedure. METHODOLOGY: A qualitative study involving focus group discussions with women who had unsuccessful ECV at secondary obstetric facility in Melbourne, Australia. RESULTS: Emergent themes from the focus group discussions were related to emotions associated with the inevitability of a caesarean section for breech, consequences of an unsuccessful ECV and the various activities undertaken by women to induce spontaneous version. CONCLUSION: A medicalized approach to ECV fell short of women's expectations of care. There is a need to develop strategies that will help women deal with any conflicts occasioned by an unsuccessful ECV.

Experience with misoprostol in the management of missed abortion in the second trimester.

The aim of this study was to determine the effectiveness and safety of misoprostol (cytotec, Searle) used during labour in women with missed abortion in the second trimester of pregnancy. Labour was induced in 42 women with missed abortion at the Women's Health and Action Research Centre, Benin City, Nigeria with intermittent vaginal administration of 100 microg tablets of misoprostol every 6 h. All women achieved successful vaginal delivery with five women requiring post-delivery uterine evacuation. The gestational ages of the women at the time of induction ranged between 13-24 weeks with a median of 17 weeks. The median dose of misoprostol resulting in successful delivery was 1,100 microgand ranged between 300 microg to 3,100 microg. Side-effects were minimal with five patients experiencing shivering, two women experiencing fever, while three vomited during the period of the induction. These results confirm the efficacy and safety of misoprostol for induction of labour in second trimester missed abortion in Nigerian women. We conclude that misoprostol is effective in the management of missed abortion in the second trimester in Nigeria.