Levator Ani Muscle Avulsion at First Birth of Mexican Women: Randomized Control Trial
Perineal Muscle Training Versus Usual Prenatal Care in the Incidence of Avulsion of the Levator Ani Muscle at First Birth of Mexican Women: Randomized Control Trial
1 other identifier
interventional
84
1 country
1
Brief Summary
Levator Ani Muscle (LAM) avulsion occurs in 13-36% of women having their first birth. These damages by palpation and ultrasound of the pelvic floor can be detected. Avulsion of the LAM results in decreased muscle strength of the pelvic floor, enlarge the genital hiatus and promotes pelvic organ prolapse. The perineal muscle training is a proposal to combine the perineal massage with pelvic floor exercises in order to prepare the LAM in the last weeks before delivery, to withstand stretching which will be submitted during childbirth. No studies in the world that have explored the effect of the perineal muscle training on the avulsion of MEA. Objective: To quantify the proportion of primiparous that result with avulsion of LAM after their first birth among those performing perineal muscle training from week 33 of gestation and those with usual prenatal care.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Feb 2016
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 29, 2015
CompletedFirst Posted
Study publicly available on registry
July 31, 2015
CompletedStudy Start
First participant enrolled
February 1, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 18, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
July 31, 2019
CompletedJuly 20, 2018
July 1, 2018
2.5 years
July 29, 2015
July 18, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Levator ani muscle avulsion
Lack of insertion of levator ani muscle to pubis identified by pelvic floor ultrasound
six weeks after childbith
Study Arms (2)
Perineal muscle training
EXPERIMENTALThis group will recibe a training of a combination of perineal massage and pelvic floor muscle excersice that will start after 33 weeks of gestation. Every week until the childbith, They will be evaluated with a diary.
Usual prental care
NO INTERVENTIONUsually pregnant women have not a training focused in pelvic floor muscle, so this group won't receive any indication of pelvic floor training except if They complains of urinary incontinence.
Interventions
It is a combination of perineal massage and Kegel exercises.
Eligibility Criteria
You may qualify if:
- Future primiparous over 18 who have single fetus, without contraindications to take delivery. Primigesta omit the term since in the study patients who have had previous pregnancies that are not related to damage to the pelvic floor as will be accepted: abortions, ectopic or molar.
- With or without symptoms of pelvic floor dysfunction (assessed with PFDI-20 questionnaire).
- Have 33 weeks gestation to start participating, so the invitation must be made before this gestational age as mentioned above.
- Physical and mental ability to understand and perform the maneuvers used in the study.
You may not qualify if:
- Any contraindication to labor, this feature can appear at any time during pregnancy, including during labor.
- Physical or mental inability to perform the maneuvers used in the study.
- Avulsion of MEA detected before birth.
- Agree not participate in the study.
- Previous pregnancies older than 20 weeks gestation resolved abdominally.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Instituto Mexicano del Seguro Social Centro Médico Nacional La Raza
Mexico City, Mexico City, 02990, Mexico
Related Publications (10)
Krofta L, Otcenasek M, Kasikova E, Feyereisl J. Pubococcygeus-puborectalis trauma after forceps delivery: evaluation of the levator ani muscle with 3D/4D ultrasound. Int Urogynecol J Pelvic Floor Dysfunct. 2009 Oct;20(10):1175-81. doi: 10.1007/s00192-009-0837-6. Epub 2009 Jul 29.
PMID: 19639235BACKGROUNDAlbrich SB, Laterza RM, Skala C, Salvatore S, Koelbl H, Naumann G. Impact of mode of delivery on levator morphology: a prospective observational study with three-dimensional ultrasound early in the postpartum period. BJOG. 2012 Jan;119(1):51-60. doi: 10.1111/j.1471-0528.2011.03152.x. Epub 2011 Oct 10.
PMID: 21985531BACKGROUNDSchwertner-Tiepelmann N, Thakar R, Sultan AH, Tunn R. Obstetric levator ani muscle injuries: current status. Ultrasound Obstet Gynecol. 2012 Apr;39(4):372-83. doi: 10.1002/uog.11080.
PMID: 22190408BACKGROUNDDeLancey JO, Kearney R, Chou Q, Speights S, Binno S. The appearance of levator ani muscle abnormalities in magnetic resonance images after vaginal delivery. Obstet Gynecol. 2003 Jan;101(1):46-53. doi: 10.1016/s0029-7844(02)02465-1.
PMID: 12517644BACKGROUNDKearney R, Miller JM, Ashton-Miller JA, DeLancey JO. Obstetric factors associated with levator ani muscle injury after vaginal birth. Obstet Gynecol. 2006 Jan;107(1):144-9. doi: 10.1097/01.AOG.0000194063.63206.1c.
PMID: 16394052BACKGROUNDKearney R, Sawhney R, DeLancey JO. Levator ani muscle anatomy evaluated by origin-insertion pairs. Obstet Gynecol. 2004 Jul;104(1):168-73. doi: 10.1097/01.AOG.0000128906.61529.6b.
PMID: 15229017BACKGROUNDLien KC, Mooney B, DeLancey JO, Ashton-Miller JA. Levator ani muscle stretch induced by simulated vaginal birth. Obstet Gynecol. 2004 Jan;103(1):31-40. doi: 10.1097/01.AOG.0000109207.22354.65.
PMID: 14704241BACKGROUNDHoyte L, Damaser MS, Warfield SK, Chukkapalli G, Majumdar A, Choi DJ, Trivedi A, Krysl P. Quantity and distribution of levator ani stretch during simulated vaginal childbirth. Am J Obstet Gynecol. 2008 Aug;199(2):198.e1-5. doi: 10.1016/j.ajog.2008.04.027. Epub 2008 Jun 2.
PMID: 18513684BACKGROUNDSvabik K, Shek KL, Dietz HP. How much does the levator hiatus have to stretch during childbirth? BJOG. 2009 Nov;116(12):1657-62. doi: 10.1111/j.1471-0528.2009.02321.x. Epub 2009 Sep 1.
PMID: 19735376BACKGROUNDWoodley SJ, Lawrenson P, Boyle R, Cody JD, Morkved S, Kernohan A, Hay-Smith EJC. Pelvic floor muscle training for preventing and treating urinary and faecal incontinence in antenatal and postnatal women. Cochrane Database Syst Rev. 2020 May 6;5(5):CD007471. doi: 10.1002/14651858.CD007471.pub4.
PMID: 32378735DERIVED
MeSH Terms
Conditions
Study Officials
- PRINCIPAL INVESTIGATOR
Daniel Vélez, M.Sc.
Colegio Mexicano de Ginecología y Obstetricia
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Medical specialist
Study Record Dates
First Submitted
July 29, 2015
First Posted
July 31, 2015
Study Start
February 1, 2016
Primary Completion
July 18, 2018
Study Completion
July 31, 2019
Last Updated
July 20, 2018
Record last verified: 2018-07