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Perineal Echography in the Delivery Room for the Detection of Anal Lesions

Perineal Echography in the Delivery Room for the Detection of Anal Lesions Among Primiparous Mothers: a Randomized Study

Status
Terminated
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01320995
Acronym
OASIS 1
Enrollment
111
Registered
2011-03-23
Start date
2011-09-01
Completion date
2014-03-01
Last updated
2026-05-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parturition

Keywords

Second degree vaginal tear, Perineal ultrasound, Anal incontinence

Brief summary

The main objective of this study is to compare the rate of anal incontinence (measured by the Wexner score, qualitative and quantitative (\> 4)) at 3 months post partum among primiparas with vaginal tears ≥ 2nd degree who receive a sphincter injury screening at delivery by conducting a sphincter ultrasound in the delivery room versus a similar group of women who do not benefit from screening.

Interventions

Perineal ultrasound is performed after delivery in order to better detect sphincter lesions.

Sponsors

Centre Hospitalier Universitaire de Nīmes
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* The patient must have given his/her informed and signed consent * The patient must be insured or beneficiary of a health insurance plan * The patient is available for 3 months of follow up * The patient is delivering her first child; vaginal delivery * The patient has a minimum stage 2 perineal lesion * The patient accepts perineal echography

Exclusion criteria

* The patient is under judicial protection, under tutorship or curatorship * The patient refuses to sign the consent * It is impossible to correctly inform the patient * Cesarien section * No perineal lesion (intact perineum) * Emergency situation which hinders screening for anal lesions under good medical conditions * Previous vaginal delivery

Design outcomes

Primary

MeasureTime frameDescription
Presence/absence of anal incontinence3 monthsAnal incontinence is defined as a Wexner score \> 4

Secondary

MeasureTime frameDescription
Wexner anal incontinence score3 months
Visual Analog Scale for discomfort during perineal ultrasound2 hoursRanges from 0.0 to 10.0
Kappa coefficient for second reading of ultrasounds30 daysA second reading of each ultrasound is obtained within 30 days. The Kappa coefficient of concordance will be calculated between the two readings.
Presence/absence of a sphincter tear2 hoursPresence/absence of a sphincter tear immediately after delivery.
Patient requires anal sutures (yes/no)2 hoursPatient requires anal sutures after delivery?
Presence/absence of suture infection3 monthsHas an infection ocurred between delivery and the follow up visit at 3 months post partum?
Questionnaire PFIQ3 months
Questionnaire PFDI3 months
Questionnaire SF363 months
Questionnaire Euroqol3 months

Countries

France

Contacts

PRINCIPAL_INVESTIGATORVincent Letouzey, MD

Centre Hospitalier Universitaire de Nīmes

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 21, 2026