Foley Bulb Traction for Cervical Ripening

NCT ID: NCT00976703

Last Updated: 2013-06-07

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

197 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-12-31

Study Completion Date

2012-08-31

Brief Summary

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This study aims to determine what type of traction, weighted bag or inner thigh taping, on foley catheters for cervical ripening results in a greater cervical dilation and shorter length of labor.

The primary outcomes are post-ripening dilation of 3 cm or more and time to delivery.

The secondary outcomes are patient pain/comfort rating and method of delivery. The investigators hypothesize that the use a weighted bag will result in a 20% increase in post-ripening dilation of at least 3 cm and a shorter average length of labor.

Detailed Description

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Over the last 20 years the number of induced labors doubled so that over one in five births in 2003 was induced. In response to the rising need for cervical ripening the American College Obstetricians and Gynecologists have stated that both mechanical and prostaglandin ripening is acceptable and safe.

Prior to beginning an induction, the Bishop score (cervical dilation, effacement, station, consistency, and position) is assessed. With Bishop scores less than five, a cervical ripening agent is commonly used. The mechanical dilation with a foley catheter works by both a direct stretching of the lower uterine segment and cervix and a local inflammatory response that releases matrix metalloproteinases and prostaglandins. It is often chosen due to its lower cost, low incidence of systemic side effects, and low risk of hyperstimulation.

Compared to misoprostol a foley with oxytocin was more effective at induction in primiparous patients, more effective at improving the dilation, safe to use after misoprostol, and not associated with an increased risk of uterine rupture in a vaginal birth after cesarean (VBAC). The foley was also shown to have a shorter induction time and less contractile abnormalities than prostaglandin E2 gel and no increased rate of uterine rupture in VBAC attempts. The use of extra-amniotic saline infusion with a foley catheter has been used to augment the mechanical stretching, however this did not decrease the induction time or improve the outcomes. Finally, a Cochrane Database review found that mechanical methods of cervical ripening were equally effective as prostaglandin agents.

Although the safety, efficacy, and side effects of foley catheter ripening have been compared with multiple other methods for cervical ripening, very few studies have compared different protocols for foley placement. One study showed that the use of oxytocin while the foley catheter was in place did not significantly shorten the time to delivery. Levy et al showed that a larger, 80 ml, balloon resulted in a greater post-ripening dilation and a higher number of deliveries in 24hours. No study to date has examined how the traction placed on the foley catheter affects the outcome.

Therefore, we propose doing a randomized controlled study in which the control is the current standard of care at MetroHealth Medical Center of placing a 500cc weight on the foley and placing it to gravity over the end of the bed. The comparison will be the method used at many institutions where the foley catheter is placed on gentle traction and taped to the inner thigh of the patient.

The primary outcomes measured will be a post-ripening dilation of 3cm or more and time to delivery. The secondary outcomes are patient pain/comfort rating and method of delivery.

Conditions

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Cervical Ripening Induction of Labor

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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weighted bag

For the weighted bag, a 500cc saline bag will be taped to an empty Foley bag which will be attached to the cervical Foley catheter. This bag will then be placed to gravity over the end of the bed. The bed will be raised so that the bag does not touch the floor. The foley and the bag will be re-assessed every 30min by the nursing staff.

Group Type ACTIVE_COMPARATOR

weighted bag

Intervention Type OTHER

For the weighted bag, a 500cc saline bag will be taped to an empty Foley bag which will be attached to the cervical Foley catheter. This bag will then be placed to gravity over the end of the bed. The bed will be raised so that the bag does not touch the floor. The foley and the bag will be re-assessed every 30min by the nursing staff.

leg taping

For the leg taping, the cervical foley catheter will be pulled to gentle traction and attached to the patient's inner thigh using a reclosable foley catheter fastener. The foley catheter and the traction will be assessed every 30min by the nursing staff. The tension will be renewed and the Foley re-adjusted if necessary at each check.

Group Type ACTIVE_COMPARATOR

leg taping

Intervention Type OTHER

For the leg taping, the cervical foley catheter will be pulled to gentle traction and attached to the patient's inner thigh using a reclosable foley catheter fastener. The foley catheter and the traction will be assessed every 30min by the nursing staff. The tension will be renewed and the Foley re-adjusted if necessary at each check.

Interventions

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weighted bag

For the weighted bag, a 500cc saline bag will be taped to an empty Foley bag which will be attached to the cervical Foley catheter. This bag will then be placed to gravity over the end of the bed. The bed will be raised so that the bag does not touch the floor. The foley and the bag will be re-assessed every 30min by the nursing staff.

Intervention Type OTHER

leg taping

For the leg taping, the cervical foley catheter will be pulled to gentle traction and attached to the patient's inner thigh using a reclosable foley catheter fastener. The foley catheter and the traction will be assessed every 30min by the nursing staff. The tension will be renewed and the Foley re-adjusted if necessary at each check.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Single viable intrauterine pregnancy
* Cephalic presentation
* Bishop score \<6
* Need for induction of labor

Exclusion Criteria

* Multiple gestation
* Bishop score \>6
* Spontaneous labor/regular contractions on admission
* Rupture of membranes
* Previous uterine scar
* Grandmultiparity (greater than 5 deliveries)
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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MetroHealth Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Kelly S Gibson

Physician

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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MetroHealth Medical Center

Cleveland, Ohio, United States

Site Status

Countries

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United States

References

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Curtin SC, Park MM. Trends in the attendant, place, and timing of births, and in the use of obstetric interventions: United States, 1989-97. Natl Vital Stat Rep. 1999 Dec 2;47(27):1-12.

Reference Type BACKGROUND
PMID: 10598437 (View on PubMed)

Martin JA, Hamilton BE, Sutton PD, Ventura SJ, Menacker F, Munson ML. Births: final data for 2003. Natl Vital Stat Rep. 2005 Sep 8;54(2):1-116.

Reference Type BACKGROUND
PMID: 16176060 (View on PubMed)

Riskin-Mashiah S, Wilkins I. Cervical ripening. Obstet Gynecol Clin North Am. 1999 Jun;26(2):243-57. doi: 10.1016/s0889-8545(05)70072-3.

Reference Type BACKGROUND
PMID: 10399759 (View on PubMed)

Gelber S, Sciscione A. Mechanical methods of cervical ripening and labor induction. Clin Obstet Gynecol. 2006 Sep;49(3):642-57. doi: 10.1097/00003081-200609000-00022.

Reference Type BACKGROUND
PMID: 16885669 (View on PubMed)

Abramovici D, Goldwasser S, Mabie BC, Mercer BM, Goldwasser R, Sibai BM. A randomized comparison of oral misoprostol versus Foley catheter and oxytocin for induction of labor at term. Am J Obstet Gynecol. 1999 Nov;181(5 Pt 1):1108-12. doi: 10.1016/s0002-9378(99)70090-6.

Reference Type BACKGROUND
PMID: 10561627 (View on PubMed)

Adeniji AO, Olayemi O, Odukogbe AA. Intravaginal misoprostol versus transcervical Foley catheter in pre-induction cervical ripening. Int J Gynaecol Obstet. 2006 Feb;92(2):130-2. doi: 10.1016/j.ijgo.2005.10.010. Epub 2005 Dec 2. No abstract available.

Reference Type BACKGROUND
PMID: 16325816 (View on PubMed)

Caliskan E, Dilbaz S, Gelisen O, Dilbaz B, Ozturk N, Haberal A. Unsucessful labour induction in women with unfavourable cervical scores: predictors and management. Aust N Z J Obstet Gynaecol. 2004 Dec;44(6):562-7. doi: 10.1111/j.1479-828X.2004.00321.x.

Reference Type BACKGROUND
PMID: 15598298 (View on PubMed)

Sciscione AC, Nguyen L, Manley J, Pollock M, Maas B, Colmorgen G. A randomized comparison of transcervical Foley catheter to intravaginal misoprostol for preinduction cervical ripening. Obstet Gynecol. 2001 Apr;97(4):603-7. doi: 10.1016/s0029-7844(00)01186-8.

Reference Type BACKGROUND
PMID: 11275035 (View on PubMed)

Bujold E, Blackwell SC, Gauthier RJ. Cervical ripening with transcervical foley catheter and the risk of uterine rupture. Obstet Gynecol. 2004 Jan;103(1):18-23. doi: 10.1097/01.AOG.0000109148.23082.C1.

Reference Type BACKGROUND
PMID: 14704239 (View on PubMed)

Sciscione AC, McCullough H, Manley JS, Shlossman PA, Pollock M, Colmorgen GH. A prospective, randomized comparison of Foley catheter insertion versus intracervical prostaglandin E2 gel for preinduction cervical ripening. Am J Obstet Gynecol. 1999 Jan;180(1 Pt 1):55-60. doi: 10.1016/s0002-9378(99)70149-3.

Reference Type BACKGROUND
PMID: 9914578 (View on PubMed)

Ben-Aroya Z, Hallak M, Segal D, Friger M, Katz M, Mazor M. Ripening of the uterine cervix in a post-cesarean parturient: prostaglandin E2 versus Foley catheter. J Matern Fetal Neonatal Med. 2002 Jul;12(1):42-5. doi: 10.1080/jmf.12.1.42.45.

Reference Type BACKGROUND
PMID: 12422908 (View on PubMed)

Lin MG, Reid KJ, Treaster MR, Nuthalapaty FS, Ramsey PS, Lu GC. Transcervical Foley catheter with and without extraamniotic saline infusion for labor induction: a randomized controlled trial. Obstet Gynecol. 2007 Sep;110(3):558-65. doi: 10.1097/01.AOG.0000278077.30890.87.

Reference Type BACKGROUND
PMID: 17766600 (View on PubMed)

Guinn DA, Davies JK, Jones RO, Sullivan L, Wolf D. Labor induction in women with an unfavorable Bishop score: randomized controlled trial of intrauterine Foley catheter with concurrent oxytocin infusion versus Foley catheter with extra-amniotic saline infusion with concurrent oxytocin infusion. Am J Obstet Gynecol. 2004 Jul;191(1):225-9. doi: 10.1016/j.ajog.2003.12.039.

Reference Type BACKGROUND
PMID: 15295370 (View on PubMed)

Boulvain M, Kelly A, Lohse C, Stan C, Irion O. Mechanical methods for induction of labour. Cochrane Database Syst Rev. 2001;(4):CD001233. doi: 10.1002/14651858.CD001233.

Reference Type BACKGROUND
PMID: 11687101 (View on PubMed)

Pettker CM, Pocock SB, Smok DP, Lee SM, Devine PC. Transcervical Foley catheter with and without oxytocin for cervical ripening: a randomized controlled trial. Obstet Gynecol. 2008 Jun;111(6):1320-6. doi: 10.1097/AOG.0b013e31817615a0.

Reference Type BACKGROUND
PMID: 18515515 (View on PubMed)

Levy R, Kanengiser B, Furman B, Ben Arie A, Brown D, Hagay ZJ. A randomized trial comparing a 30-mL and an 80-mL Foley catheter balloon for preinduction cervical ripening. Am J Obstet Gynecol. 2004 Nov;191(5):1632-6. doi: 10.1016/j.ajog.2004.03.033.

Reference Type BACKGROUND
PMID: 15547534 (View on PubMed)

de Vaan MD, Ten Eikelder ML, Jozwiak M, Palmer KR, Davies-Tuck M, Bloemenkamp KW, Mol BWJ, Boulvain M. Mechanical methods for induction of labour. Cochrane Database Syst Rev. 2023 Mar 30;3(3):CD001233. doi: 10.1002/14651858.CD001233.pub4.

Reference Type DERIVED
PMID: 36996264 (View on PubMed)

Gibson KS, Mercer BM, Louis JM. Inner thigh taping vs traction for cervical ripening with a Foley catheter: a randomized controlled trial. Am J Obstet Gynecol. 2013 Sep;209(3):272.e1-7. doi: 10.1016/j.ajog.2013.05.028. Epub 2013 Jun 6.

Reference Type DERIVED
PMID: 23685080 (View on PubMed)

Other Identifiers

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IRB09-00392

Identifier Type: -

Identifier Source: org_study_id

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