Comparison of sonographic score and Bishop score in the prediction of successful labor induction in term patients: A prospective observational study

IF 2.3 Q2 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH

Clinical Epidemiology and Global Health Pub Date : 2024-11-01 DOI:10.1016/j.cegh.2024.101734

Udhaya Preethi R, Saswati Tripathy

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引用次数: 0

Abstract

Background

The cervical favorability for IOL is assessed by scoring systems. There are various scoring systems, including the Field system, Lange pelvic scoring system, and Bishop scoring system, which was then modified and termed ‘The modified Bishop scoring system, and it is the most widely used one. This scoring is done based on the assessment of the station of the fetal presenting part, consistency, position, dilatation, and length of the maternal cervix. Owing to its subjective assessment, there is a high chance of inter-observer variability. Therefore, radiological methods such as Trans-vaginal ultrasonogram (TVS) and Trans-abdominal ultrasonogram (TAS) are preferred over manual methods. This study aims to determine the role of assessment of the cervix by Modified Bishop Score and assessment of the cervical parameters by Transvaginal ultrasonogram (TVS) and compare them in predicting the outcome of labour.

Material and methods

This prospective observational study was conducted by the Department of Obstetrics and Gynecology in a tertiary care hospital located at Chengalpattu, Tamil Nadu, in a term singleton pregnancy woman, and the Study period was from January 2023 to July 2023 for six months. In total, one hundred fifty pregnant women were recruited. The study inclusion criteria were singleton pregnant women with intact amniotic membranes and a period of gestation >37 weeks with cephalic presentation. The findings of TVS were blinded to the person who measured cervical parameters for the bishop score. IOL done for both favorable and unfavorable cervix according to the guidelines given by FOGSI-ICOG (2018) for IOL.

Results

Receiver operating characteristic (ROC) curve analysis showed the area under the curve (AUC) for the TVS score was 0.705(95 % CI: 0.616–0.794) against the standard bishop score. TVS Score≥6.5 cm is the best cut-off value to ascertain successful IOL with a sensitivity of 99 % and specificity of 94 % among singleton pregnancy women.

Conclusion

This prospective observational study deduced that TVS scoring is a valid alternative tool against the standard bishop score in predicting cervical favorability for IOL among singleton pregnant women with plausible sensitivity and specificity. TVS scoring for assessing cervical favorability acts as an outstanding marker in predicting the IOL with a cut-off value of ≥6.5 cm in singleton pregnant women.

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"超声评分与毕夏普评分在预测足月患者引产成功率方面的比较：前瞻性观察研究"。

背景通过评分系统评估宫颈对人工晶体的适应性。目前有多种评分系统，包括 Field 系统、Lange 骨盆评分系统和 Bishop 评分系统，其中 Bishop 评分系统经过修改后被称为 "修改后的 Bishop 评分系统"，是目前使用最广泛的评分系统。这种评分方法是基于对胎儿出现部位的站位、一致性、位置、扩张度和母体宫颈长度的评估。由于是主观评估，观察者之间出现差异的几率很高。因此，经阴道超声波图（TVS）和经腹部超声波图（TAS）等放射学方法比人工方法更受青睐。本研究旨在确定通过改良毕夏普评分评估宫颈和通过经阴道超声波检查（TVS）评估宫颈参数的作用，并比较它们在预测分娩结果方面的作用。材料和方法这项前瞻性观察研究由位于泰米尔纳德邦 Chengalpattu 的一家三级医院的妇产科进行，对象是足月单胎妊娠妇女，研究时间为 2023 年 1 月至 2023 年 7 月，为期 6 个月。共招募了 150 名孕妇。研究的纳入标准是羊膜完整、妊娠 37 周且头足月的单胎孕妇。TVS的结果与测量宫颈参数以进行bishop评分的人是盲人。根据 FOGSI-ICOG (2018)给出的 IOL 指南，对良好和不良宫颈进行了 IOL.ResultsReceiver operating characteristic (ROC) curve analysis 显示，与标准 bishop 评分相比，TVS 评分的曲线下面积 (AUC) 为 0.705(95 % CI: 0.616-0.794)。TVS评分≥6.5 cm是确定单胎妊娠妇女是否能成功实施人工晶体植入术的最佳临界值，其敏感性为99%，特异性为94%。结论这项前瞻性观察研究推断，TVS评分是预测单胎妊娠妇女宫颈是否适合实施人工晶体植入术的有效替代工具，其敏感性和特异性均可信。TVS评分是评估宫颈是否适合接受人工晶体植入术的重要指标，其临界值为≥6.5厘米。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Clinical Epidemiology and Global Health PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH-

CiteScore

4.60

自引率

7.70%

发文量

218

审稿时长

66 days

期刊介绍： Clinical Epidemiology and Global Health (CEGH) is a multidisciplinary journal and it is published four times (March, June, September, December) a year. The mandate of CEGH is to promote articles on clinical epidemiology with focus on developing countries in the context of global health. We also accept articles from other countries. It publishes original research work across all disciplines of medicine and allied sciences, related to clinical epidemiology and global health. The journal publishes Original articles, Review articles, Evidence Summaries, Letters to the Editor. All articles published in CEGH are peer-reviewed and published online for immediate access and citation.