On predicting time to completion for the first stage of spontaneous labor at term in multiparous women

Gunnarsson, Björn; Skogvoll, Eirik; Jónsdóttir, Ingibjörg Hanna; Røislien, Jo; Smárason, Alexander K.

doi:10.1186/s12884-017-1345-1

Cited by 16 publications

(17 citation statements)

References 41 publications

(58 reference statements)

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“…These imply no risk for cephalopelvic disproportion, resulting in normal progress of labor [26]. One study has also supported the notion that the higher the birthweight the higher the duration of labor [27].…”

Section: Discussionmentioning

confidence: 89%

The prediction of the progress of labor using the Friedman Curve in Primiparous Thai women

Phumdoung¹,

Youngwanichsetha²,

Boonyoung³

2018

J Gynecol Res Obstet

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At present most of studies showed that the duration of labor of women is longer than in the past making it necessary to conduct the study to confi rm the sensitivity of the Friedman Curve in the prediction of labor progress in the fi rst stage of labor. This study used convenient sampling to recruit primiparous women in a labor room at a central hospital in southern Thailand among which 350 women were used in the analysis for the sensitivity prediction of the Friedman Curve. The results showed that the Friedman Curve has moderate sensitivity in predicting the progress of labor throughout the fi rst stage of labor: latent, acceleration, and maximum slope phases (correction of prediction 72%, 79%, 78%, respectively) but the deceleration phase showed a high sensitivity (85%). Thus, using the Friedman Curve to monitor the progress of labor is still reliable in Thai women.

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Section: Discussionmentioning

confidence: 89%

The prediction of the progress of labor using the Friedman Curve in Primiparous Thai women

Phumdoung¹,

Youngwanichsetha²,

Boonyoung³

2018

J Gynecol Res Obstet

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“…Gunnarsson et al . evaluated retrospectively 1753 term parous women who had spontaneous labor and found that maternal body mass index, neonatal birth weight and epidural and syntocinon use contributed to prediction of time to complete the first stage of labor. Masturzo et al .…”

Section: Discussionmentioning

confidence: 99%

“…Nesheim analyzed 5418 women in labor to assess the contribution of a variety of factors in predicting duration of labor, and found that the most significant predictors were nulliparity, induction vs spontaneous labor, neonatal birth weight, maternal height, gestational age and occipital position, but did not report overall variance 43 . Gunnarsson et al evaluated retrospectively 1753 term parous women who had spontaneous labor and found that maternal body mass index, neonatal birth weight and epidural and syntocinon use contributed to prediction of time to complete the first stage of labor 44 . Masturzo et al examined 270 women in spontaneous second stage of labor and reported that the highest quartile for AoP had the shortest mean time to delivery 45 .…”

Section: Comparison With Findings From Previous Studiesmentioning

confidence: 99%

Comparison of different methods of measuring angle of progression in prediction of labor outcome

Frick

Kostiv

Vojtassakova

et al. 2020

Ultrasound in Obstet & Gyne

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Objectives First, to compare the manual sagittal and parasagittal and automated parasagittal methods of measuring the angle of progression (AoP) by transperineal ultrasound during labor, and, second, to develop models for the prediction of time to delivery and need for Cesarean section (CS) for failure to progress (FTP) in a population of patients undergoing induction of labor. Methods This was a prospective observational study of transperineal ultrasound in a cohort of 512 women with a singleton pregnancy undergoing induction of labor. A random selection of 50 stored images was assessed for inter‐ and intraobserver reliability of AoP measurements using the manual sagittal and parasagittal and automated parasagittal methods. In cases of vaginal delivery, univariate linear, multiple linear and quantile regression analyses were performed to predict time to delivery. Univariate and multivariate binomial logistic regression analyses were performed to predict CS for FTP in the first stage of labor. Results The intraclass correlation coefficient (ICC) for the manual parasagittal method for a single observer was 0.97 (95% CI, 0.95–0.98) and for two observers it was 0.96 (95% CI, 0.93–0.98), indicating good reliability. The ICC for the sagittal method for a single observer was 0.93 (95% CI, 0.88–0.96) and for two observers it was 0.74 (95% CI, 0.58–0.84), indicating moderate reliability for a single observer and poor reliability between two observers. Bland–Altman analysis demonstrated narrower limits of agreement for the manual parasagittal approach than for the sagittal approach for both a single and two observers. The automated parasagittal method failed to capture an image in 19% of cases. The mean difference in AoP measurements between the sagittal and manual parasagittal methods was 11°. In pregnancies resulting in vaginal delivery, 54% of the variation in time to delivery was explained in a model combining parity, epidural and syntocinon use during labor and the sonographic findings of fetal head position and AoP. In the prediction of CS for FTP in the first stage of labor, a model which combined maternal factors with the sonographic measurements of AoP and estimated fetal weight was superior to one utilizing maternal factors alone (area under the receiver‐operating‐characteristics curve, 0.80 vs 0.76). Conclusions First, the method of measuring AoP with the greatest reliability is the manual parasagittal technique and future research should focus on this technique. Second, over half of the variation in time to vaginal delivery can be explained by a model that combines maternal factors, pregnancy characteristics and ultrasound findings. Third, the ability of AoP to provide clinically useful prediction of CS for FTP in the first stage of labor is limited. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.

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“…Whether labor is induced or spontaneous, its progression is slower in nulliparous women compared to multiparous women. (17)(18)(19) Women with preterm pregnancies (gestational age less than 37 weeks) were more likely to have delayed onset of active labor, In a relatively similar study done in Uganda, induction-delivery time, a fair indicator of labor progression, reduced with increasing gestational age. (20).…”

Section: Discussionmentioning

confidence: 99%

Factors associated with delayed onset of active labor following administration of vaginal Misoprostol among women at Mbarara Regional referral hospital, Uganda: A prospective cohort study

Kajabwangu

Bajunirwe

Lukabwe

et al. 2019

Preprint

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Background Vaginal misoprostol has been recommended by the World Health Organization as one of the effective methods for induction of labor. Globally 9.6% of all deliveries follow induction of labor. Although the goal of labor induction is to initiate active labor with subsequent vaginal delivery, some mothers undergoing labor induction delay to get into active labor and some fail completely. The factors associated with delayed onset of active labor following labor induction with vaginal misoprostol have not been sufficiently explored in resource limited settings.Methods We conducted a prospective cohort study over a period of 6 months on the antenatal ward and labor suit of Mbarara Regional Referral Hospital, southwestern Uganda. We enrolled mothers of gestational age at least 28 weeks, with indication for labor induction. They received 50 micrograms of vaginal misoprostol every 6 hours with a maximum of 4 doses and were followed up until onset of active labor. Onset of active labor was considered delayed if it occurred at more than 12 hours after administration of the first dose of vaginal misoprostol. Bivariate and multivariate analysis was done to determine the factors associated with delayed onset of active labor.Results Eighty-eight mothers underwent induction of labor, 22.7% had delayed onset of active labor. After adjusting for potential confounders, low/no parity (Relative Risk or RR 2.67, p-value=0.01), low gestational age (RR 3.1, p-value=0.006) and higher BMI (RR 0.36, p-value=0.005), were associated with delayed onset of active labor following vaginal misoprostol administration.Conclusion Nulliparity, gestational age less than 37weeks are associated with delayed onset of active labor following labor induction with vaginal misoprostol while BMI of 26 and above is protective from delayed onset of labor.

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On predicting time to completion for the first stage of spontaneous labor at term in multiparous women

Cited by 16 publications

References 41 publications

The prediction of the progress of labor using the Friedman Curve in Primiparous Thai women

The prediction of the progress of labor using the Friedman Curve in Primiparous Thai women

Comparison of different methods of measuring angle of progression in prediction of labor outcome

Factors associated with delayed onset of active labor following administration of vaginal Misoprostol among women at Mbarara Regional referral hospital, Uganda: A prospective cohort study

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