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Trial registered on ANZCTR
Registration number
ACTRN12612000228886
Ethics application status
Approved
Date submitted
21/02/2012
Date registered
23/02/2012
Date last updated
14/03/2014
Type of registration
Retrospectively registered
Titles & IDs
Public title
Does mechanical dilatation of the cervix at non-labour caesarean section reduce postoperative morbidity?
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Scientific title
Reduction of postoperative morbidity by mechanical dilatation of the cervix at non-labour caesarean? A randomized controlled trial
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Secondary ID [1]
279995
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nil
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Efficacy of mechanical dilatation of the cervix at non-labour caesarean section
285904
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Condition category
Condition code
Reproductive Health and Childbirth
286096
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0
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Childbirth and postnatal care
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Mechanical dilatation of the cervix using a surgical instrument (dilatator) at non-labour caesarean section.
Description: After removal of the placenta the cervix will be dilated by a hegar uterine dilator (size 15). Duration circa one second.
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Intervention code [1]
284322
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Treatment: Devices
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Comparator / control treatment
No dilatation.
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Control group
Active
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Outcomes
Primary outcome [1]
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Postpartum Hemorrhage (blood loss more than 1000 ml) - assessed by clinical assessment
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Assessment method [1]
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Timepoint [1]
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24 hours after childbirth
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Secondary outcome [1]
296192
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Blood transfusion needed - e.g. hemoblobin level below 7 g/dl
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Assessment method [1]
296192
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Timepoint [1]
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Within 6 weeks after childbirth.
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Secondary outcome [2]
296193
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Hemoglobin - indicates blood loss (assessed by blood analysis)
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Assessment method [2]
296193
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Timepoint [2]
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Day 1 after childbirth
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Secondary outcome [3]
296194
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Secondary postpartum hemorrhage - assessed by clinical assessment
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Assessment method [3]
296194
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Timepoint [3]
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Within 6 weeks after childbirth.
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Secondary outcome [4]
296195
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Infection - assessed by clinical assessment (temperatur greater than 38,5 degrees C, blood tests - e.g. CRP)
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Assessment method [4]
296195
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Timepoint [4]
296195
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Within 6 weeks after childbirth.
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Secondary outcome [5]
296196
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Cervical trauma - assessed by clinical assessment
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Assessment method [5]
296196
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Timepoint [5]
296196
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After childbirth
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Secondary outcome [6]
296197
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Subinvolution - assessed by clinical assessment
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Assessment method [6]
296197
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Timepoint [6]
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Day 5 after childbirth.
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Secondary outcome [7]
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Time of surgery - assessed by medical records data
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Assessment method [7]
296198
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Timepoint [7]
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After surgery.
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Eligibility
Key inclusion criteria
Greater than 23+6 weeks of gestation, non-labour caesarean section
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Minimum age
No limit
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Maximum age
No limit
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Sex
Females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Sign of infection, running antibiotic therapy, opening of the cervix
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
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Who is / are masked / blinded?
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Intervention assignment
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Other design features
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Phase
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/02/2012
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Actual
1/02/2012
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Date of last participant enrolment
Anticipated
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Actual
30/09/2013
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
500
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
4160
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Germany
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State/province [1]
4160
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Funding & Sponsors
Funding source category [1]
284754
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University
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Name [1]
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University Medical Center Mannheim
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Address [1]
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Theodor-Kutzer-Ufer 1-3
68167 Mannheim
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Country [1]
284754
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Germany
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Primary sponsor type
Individual
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Name
Sven Kehl
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Address
University Medical Center Mannheim
Department of Obstetrics and Gynecology
Theodor-Kutzer-Ufer 1-3
68167 Mannheim
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Country
Germany
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
283646
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Country [1]
283646
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Ethics approval
Ethics application status
Approved
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Summary
Brief summary
In clinical routine some obstetricians routinely dilate the cervix from above during non-labour caesarean because they believe that the cervix of women without labour pain is undilated and may cause obstruction of blood or lochia drainage. However, this procedure may result in contamination by vaginal micro-organisms during dilatation, and increase the risk of infection or cervical trauma. An actual cochrane analysis (http://www.ncbi.nlm.nih.gov/pubmed?term=Mechanical%20dilatation%20of%20the%20cervix%20at%20non-labour%20caesarean%20section%20for%20reducing%20postoperative%20morbidity) stated that there is insufficient evidence of mechanical dilatation of the cervix at non-labour caesarean section for reducing postoperative morbidity. The autors concluded that further randomised controlled trials with adequate methodological quality comparing intraoperative cervical dilatation during non-labour caesarean section versus no mechanical dilatation for reducing postoperative morbidity are needed.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Dr Sven Kehl
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Address
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University Medical Center Department of Obstetrics and Gynecology Theodor-Kutzer-Ufer 1-3 68167 Mannheim
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Country
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Germany
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Phone
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+49-621-3832286
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Sven Kehl
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Address
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University Medical Center
Department of Obstetrics and Gynecology
Theodor-Kutzer-Ufer 1-3
68167 Mannheim
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Country
17061
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Germany
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Phone
17061
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+49-621-3832286
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Fax
17061
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Email
17061
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[email protected]
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Contact person for scientific queries
Name
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Sven Kehl
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Address
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University Medical Center
Department of Obstetrics and Gynecology
Theodor-Kutzer-Ufer 1-3
68167 Mannheim
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Country
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Germany
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Phone
7989
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+49-621-3832286
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Fax
7989
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Email
7989
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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