Variables that predict the success of labor induction

Bueno, B.; Sanfrutos, Luis; Salazar, Francisco; Pérez-Medina, Tirso; Engels, Virginia; Archilla, Beatriz; Izquierdo, F.; Bajo, J.M.

doi:10.1111/j.0001-6349.2005.00881.x

Cited by 34 publications

(35 citation statements)

References 12 publications

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“…2,[6][7][8][9] Induction of labour is most challenging in nulliparous women, 10 and the optimum technique for cervical ripening in this group is unknown. 11 The method most commonly used to identify readiness for onset of labour is the modified Bishop score which includes quantitative measures of consistency and dilation of the cervix, and station and position of the presenting part. 12 Originally developed to assess the likelihood of labour in multiparous women, it has since been applied to nulliparous women undergoing induction of labour.…”

Section: Introductionmentioning

confidence: 99%

Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE₂ gel

Pennell

Henderson

O'Neill

et al. 2009

BJOG

174

176

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Objective To compare the efficacy and patient satisfaction of three methods of labour induction (double balloon catheters, single balloon catheters and prostaglandin gel) in term nulliparous women with unfavourable cervices.Design Randomised controlled trial.Population A total of 330 nulliparous women with unfavourable cervices induced at term.Methods Three cervical ripening study arms were used: double balloon catheter (107 women); 16F Foley catheter (110 women) and PGE 2 gel (2 mg) (113 women).Main outcome measures Caesarean section, induction to delivery interval, adverse reactions and patient satisfaction.Results There was no difference in caesarean delivery rates between groups (double balloon 43%, single balloon 36%, PGE 2 37%, P = 0.567). The induction to delivery interval was longer in the double balloon group (median 24.5; 95% CI 23.7, 30.6 hours) than the single balloon (23.2; 20.8, 25.8 hours) or PGE 2 (23.8; 21.7, 26.8 hours) (P = 0.043). Uterine hyperstimulation occurred in 14% of the PGE 2 group with none occurring with mechanical cervical ripening. Cord blood gases were worse in the PGE 2 group: median arterial pH double balloon 7.26 (range 7.03-7.40); single balloon 7.26 (7.05-7.44); PGE 2 7.25 (6.91-7.41) (P = 0.050). Cervical ripening with the single balloon catheter was associated with significantly less pain (pain score ‡4: double balloon 55%, single balloon 36%, PGE 2 63%, P < 0.001).Conclusions Labour induction in nullipara with unfavourable cervices results in high caesarean delivery rates. Although all methods in this study had similar efficacy, the single balloon catheter offers the best combination of safety and patient comfort.Keywords Induction of labour, mechanical ripening, nulliparous women, prostaglandin, randomised controlled trial, unfavourable cervix.Please cite this paper as: Pennell C, Henderson J, O'Neill M, McCleery S, Doherty D, Dickinson J. Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE 2 gel.

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Section: Introductionmentioning

confidence: 99%

Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE₂ gel

Pennell

Henderson

O'Neill

et al. 2009

BJOG

174

176

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“…With these components, the different studies produced new scores or algorithms, allowing one to divide patients into subgroups with different labor induction prognoses. [29][30][31][32][33][34][35][36] Although these models are more complex with several variables to be accounted for, their predictive values appear superior to any factor used alone.…”

Section: Predicting the Success Of Labor Inductionmentioning

confidence: 99%

The role of sonographic cervical length in labor induction at term

Papillon-Smith

Abenhaim

2014

J of Clinical Ultrasound

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The purpose of this study is to review the literature examining the role of ultrasound in the induction of labor. Databases including Ovid, PubMed, Web of Science, Google Scholar, and UpToDate were searched and current guidelines from the SOGC, the ACOG, the RCOG, and the RANZCOG were reviewed. Although studies have not demonstrated the superiority of cervical sonography to the Bishop score, the evidence indicates that sonography could be useful in planning induction of labor, significantly reducing the need for cervical ripening agents. A more comprehensive method integrating both sonography and digital exam may be more appropriate.

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“…In pregnant women undergoing induction of labor, successful vaginal delivery and the induction‐to‐delivery interval can be predicted by considering maternal characteristics, obstetric history and preinduction sonographic measurement of cervical length. However, a systematic review and meta‐analysis of 31 studies showed that cervical length at or near term contributes only moderately to predicting the outcome of delivery after induction of labor.…”

Section: Introductionmentioning

confidence: 99%

Successful induction of labor: prediction by preinduction cervical length, angle of progression and cervical elastography

Pereira

Frick

Poon

et al. 2014

Ultrasound in Obstet & Gyne

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Variables that predict the success of labor induction

Abstract: Cervical length, Bishop score, and parity predict the success of labor induction.

Cited by 34 publications

References 12 publications

Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE₂ gel

Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE₂ gel

The role of sonographic cervical length in labor induction at term

Successful induction of labor: prediction by preinduction cervical length, angle of progression and cervical elastography

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Variables that predict the success of labor induction

Abstract: Cervical length, Bishop score, and parity predict the success of labor induction.

Cited by 34 publications

References 12 publications

Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE2 gel

Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE2 gel

The role of sonographic cervical length in labor induction at term

Successful induction of labor: prediction by preinduction cervical length, angle of progression and cervical elastography

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Product

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Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE₂ gel

Induction of labour in nulliparous women with an unfavourable cervix: a randomised controlled trial comparing double and single balloon catheters and PGE₂ gel