|
Prediction of Successful Normal Vaginal Delivery by Ultrasonographic Measurement of Occiput-Spine Angle during First Stage of Labor |
|---|---|
| รหัสดีโอไอ | |
| Creator | Cattleya Mukdee |
| Title | Prediction of Successful Normal Vaginal Delivery by Ultrasonographic Measurement of Occiput-Spine Angle during First Stage of Labor |
| Contributor | Thitima Suntharasaj, Chusana Petpichetchian |
| Publisher | PIMDEE Co., Ltd. |
| Publication Year | 2564 |
| Journal Title | Thai Journal of Obstetrics and Gynaecology |
| Journal Vol. | 29 |
| Journal No. | 5 |
| Page no. | 288-297 |
| Keyword | occiput-spine angle, ultrasonography, prediction, vaginal delivery |
| URL Website | https://tci-thaijo.org/index.php/tjog/index |
| Website title | www.tci-thaijo.org |
| ISSN | 2673-0871 |
| Abstract | Objectives: To determine the accuracy of occiput-spine angle (OSA) measurement during the first stage of labor for predicting the course and outcome of labor.Materials and Methods: A study was carried out in singleton pregnant women with cephalic presentation, who underwent labor between 37 weeks and 41 weeks and 6 days, from February 2018 to January 2019. Transabdominal ultrasound was performed to measure the OSA. The first examination was done at a cervical dilatation of 3-6 cm, and it was repeated at following 2 hours. The diagnostic values of the OSA as a predictor of the course and outcome of labor were analyzed.Results: A total of 330 cases were studied, and 41 (12%) of them underwent a cesarean section due to cephalopelvic disproportion (CPD). There was no significant difference in mean OSA among the vaginal delivery and cesarean section groups (110.7 ? 11.1 degrees vs 110 ? 9.1 degrees, p = 0.649). The sensitivity of an OSA ? 100 degrees for predicting vaginal delivery was 83.7%, but its specificity was only 17.1%. The combination of an OSA ? 100 degrees, multiparity, and no induction of labor could predict vaginal delivery with a positive likelihood ratio 3.6. Conclusion: The mean OSA among the vaginal delivery and cesarean section groups was not significantly different. The OSA alone was not a good predictor for vaginal delivery. |
