Factors Influencing the Accuracy of Digital Examination for Determining Fetal Head Position during the First Stage of Labor

• DOI: 10.1272/jnms.77.290
• Publication Date: 2010-12-27T06:10:26Z
• Authors: Ikuno Kawabata; Akiko Nagase; Atsuko Oya; Masako Hayashi; Hidehiko Miyake; Akihito Nakai; Toshiyuki Takeshita
• Keywords: Occiput; Fetal head; Sonographer; Fetal position; Supine position; Position (finance); Cephalic presentation

The objective of this study was to explore factors influencing the accuracy transvaginal digital examination for determining fetal head position during first stage labor.Fetal assessed in 87 women labor at term with normal singleton cephalic presentation. Transvaginal examinations were performed by attending midwives and followed immediately transabdominal ultrasound assessments a single sonographer. Accuracy defined as agreement results each examination. Multivariate logistic regression analysis determine independent accuracy.In only 40.3% patients (n = 35) consistent assessments. showed that significantly associated cervical dilatation more than 7 cm (odds ratio, 3.01; 95% confidence interval [CI], 1.03-9.4), birth weight less 2,500 g 8.68; CI, 1.08-86.28), anterior occiput group 4.73; 1.76-13.49).The present demonstrates is accurate ultrasonography labor. suggest should be routinely cm, an estimated body g, posterior position, or transverse position.