External Phase MRI in Diagnosis of OASI
- Conditions
- Anal Sphincter InjuryObstetrics Trauma
- Interventions
- Other: Magnetic resonance imaging
- Registration Number
- NCT03039374
- Lead Sponsor
- University of Turku
- Brief Summary
There is around 60 000 births annually in Finland. Around 1-5% of all vaginal deliveries in Finland complicate in a Grade III- IV perineal tear. Because the diagnosis of a sphincter lesion after birth can be challenging the total amount of women having obtained a sphincter lesion could be even grater.
The aim of our study is to compare different tools in the diagnosis of obstetric anal sphincter injury. In doing so the investigators hope to achieve early diagnosis of this pathology and thus facilitate early treatment of a possible sphincter defect.
- Detailed Description
See the attacher research plan for a more detailed description
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Female
- Target Recruitment
- 53
Women with OASI
Under 18
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description OASI patients Magnetic resonance imaging All patients older than 18 and a 3rd or 4th degree perineal tear during birth meet the inclusion criteria. All women who have obtained such a injury during birth in the Vaasa or Seinäjoki Central hospitals will be evaluated for eligibility.
- Primary Outcome Measures
Name Time Method Comparison of MRI and endoanal ultrasound in diagnosis of obstetric anal sphincter injury 6 months to 1 year Comparison of anal sphincter characteristics (length, thickness at 3 and 9 o'clock) and placement of the possible rupture with both imaging modalities
- Secondary Outcome Measures
Name Time Method