- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00894582
Prospective Study of Ventral Hernia Repair
May 5, 2009 updated by: Northwestern University
Prospective Measurements of Intra-Abdominal Volume and Pulmonary Function After Repair of Massive Ventral Hernias With the Components Separation Technique
Immediate post-operative abdominal compartment syndrome is a feared complication after hernia repair in patients with a "loss of abdominal domain."
Replacement of the viscera within an unyielding stiff abdominal wall may compromise the perfusion of the intestines, elevate the diaphragm, and interfere with ventilation.
The components separation technique, used to repair these massive hernias, employs bilateral relaxing incisions in the external oblique muscle and fascia in order to approximate the rectus abdominis muscles in the midline.
Reducing a large volume hernia into the abdominal cavity and primary closure of the abdominal wall should cause problems both with abdominal compartment pressure and with postoperative ventilation, but in the investigators' 13-year experience with over 250 cases, this has not been seen clinically, and the investigators sought to understand why.
The investigators' hypothesis is that releasing the rectus muscles from the external obliques expands the intra-abdominal compartment, reclaims lost domain, and thus reduces abdominal pressure and respiratory problems.
The investigators have previously reported increased abdominal volumes using the components separation technique in a retrospective series, but patients were not standardized for the collection of data, and no pulmonary function tests were obtained in that series (Hadad, in press).
The purpose of this study was to prospectively analyze the effect of this surgical technique on abdominal volume and pulmonary function.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
With approval from the Institutional Review Board of Northwestern University, twenty-one patients with large ventral hernias were selected due to their large hernia size from a pool of 130 patients undergoing abdominal wall reconstruction from January 2007 to December 2008.
No patients were excluded based on co-morbid conditions.
One patient of the 21 selected was excluded because his preoperative CT scan that was performed at an outside institution was stored in an incompatible format for analysis.
Another patient was excluded because it was decided intra-operatively that she could be repaired in a tension-free manner without components separation and was closed with mesh alone.
Standard abdominal and pelvic CT scans and pulmonary function tests were performed immediately before hernia repair, and 3 months after repair.
Pulmonary function tests were interpreted by blinded members of the Department of Pulmonology.
Intra-operative peak airway pressure, bladder pressure, postoperative oxygen requirement, diagnosis of pneumonia, and any other cardio-respiratory complications were recorded on the remaining 19 patients.
Routine patient demographics, clinical characteristics, postoperative course and incidence of recurrence were prospectively collected on all patients.
Statistical analysis was performed in an intention-to-treat manner, using paired student's t-test where applicable.
Study Type
Observational
Enrollment (Actual)
21
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
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Illinois
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Chicago, Illinois, United States, 60611
- Division of Plastic and Reconstructive Surgery, Northwestern.edu
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- any patient with a large ventral hernia already scheduled to undergo ventral hernia repair with components separation technique
Exclusion Criteria:
- any patient unwilling to comply with pre-operative pulmonary function testing, or postoperative pulmonary function testing or postoperative one-time abdominal CT scan
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Change in abdominal volume
Time Frame: 3 months following hernia repair
|
3 months following hernia repair
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Change in pulmonary function
Time Frame: 3 months following hernia repair
|
3 months following hernia repair
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
January 1, 2007
Primary Completion (Actual)
December 1, 2008
Study Completion
December 1, 2008
Study Registration Dates
First Submitted
May 5, 2009
First Submitted That Met QC Criteria
May 5, 2009
First Posted (Estimate)
May 7, 2009
Study Record Updates
Last Update Posted (Estimate)
May 7, 2009
Last Update Submitted That Met QC Criteria
May 5, 2009
Last Verified
May 1, 2009
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 0678-010
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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-
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Clinical Trials on Components separation hernia repair
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The Cleveland ClinicCompleted
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