Patients undergoing surgery on their Aorta can get ischemia, a lack of blood flow, to their intestines and colon. This is very serious, as 2 out of 3 patients who have this problem die before leaving the hospital. A device developed by Spectros, called T-Stat, is approved by the US FDA to detect ischemia, and has been reported to detect ischemia in AAA aneurysm surgery and stenting, allowing the...
Date First Received: May 1, 2008
Last Updated: February 5, 2009
Verified by: Spectros Corporation, February 2009
Clinical Trial Phase: Phase 3 | Start Date: June 2007
Overall Status: Recruiting
Estimated Enrollment: 500
Brief Summary
Official Title: “Prevention of Colon Ischemia During Aortic Aneurysm (AAA) Repair”
Condition Keyword(s):
Intervention(s):
Patients undergoing surgery on their Aorta can get ischemia, a lack of blood flow, to their intestines and colon. This is very serious, as 2 out of 3 patients who have this problem die before leaving the hospital. A device developed by Spectros, called T-Stat, is approved by the US FDA to detect ischemia, and has been reported to detect ischemia in AAA aneurysm surgery and stenting, allowing the surgeon or interventional radiologist to take action quickly, while the colon ischemia is still treatable.
This purpose of this study is to establish how T-Stat can best be used to prevent deaths.
Study Type: Interventional
Study Design: Treatment, Non-Randomized, Open Label, Single Group Assignment, Safety/Efficacy Study
Study Primary Completion Date: September 2009
Intervention(s) in this Clinical Trial
- Procedure: Reestablish colon blood flow
- If ischemia is detected, and the detection in consistent with the physician's clinical view, blood flow to the colon is established using any of the known techniques that would be used had the diagnosis been made in the absence of T-Stat, which include changes in the deployment of stents and/or coils, reanastomosis, reimplantation, or stenting, of obstructed vessels, or other established techniques.
Outcome Measures for this Clinical Trial
Primary Measures
- Detect colon ischemia early
- Time Frame: Just before, and during, surgery or stenting
Safety Issue?: Yes
- Time Frame: Just before, and during, surgery or stenting
Secondary Measures
- Allows change in the untreated course of colon ischemia
- Time Frame: 28 days or discharge from hospital
Safety Issue?: Yes
- Time Frame: 28 days or discharge from hospital
Criteria for Participation in this Clinical Trial
Inclusion Criteria:
- Aortic Aneurysm, intact or ruptured
- Repair by catheter based stent or by open surgery during monitoring
- Patent rectum
- Absence of rectal bleeding
Exclusion Criteria:
- Lack of informed consent
- Rectal bleeding
- Obstructed rectum
Gender Eligibility for this Clinical Trial: Both
Minimum Age for this Clinical Trial: N/A
Maximum Age for this Clinical Trial: N/A
Are Healthy Volunteers Accepted for this Clinical Trial?: Accepts Healthy Volunteers
Clinical Trial Sponsor Information
Lead Sponsor: Spectros Corporation
Overall Clinical Trial Officials and Contacts
Overall Contact: Eugene Lee, MD 916-734-2011 eugenes.lee@ucdmc.ucdavis.edu
Related Publications
References
Friedland S, Benaron D, Coogan S, Sze DY, Soetikno R. Diagnosis of chronic mesenteric ischemia by visible light spectroscopy during endoscopy. Gastrointest Endosc. 2007 Feb;65(2):294-300. Epub 2006 Sep 20.
Benaron DA, Parachikov IH, Friedland S, Soetikno R, Brock-Utne J, van der Starre PJ, Nezhat C, Terris MK, Maxim PG, Carson JJ, Razavi MK, Gladstone HB, Fincher EF, Hsu CP, Clark FL, Cheong WF, Duckworth JL, Stevenson DK. Continuous, noninvasive, and localized microvascular tissue oximetry using visible light spectroscopy. Anesthesiology. 2004 Jun;100(6):1469-75.
Citations Reporting Results
Lee ES, Bass A, Arko FR, Heikkinen M, Harris EJ, Zarins CK, van der Starre P, Olcott C. Intraoperative colon mucosal oxygen saturation during aortic surgery. J Surg Res. 2006 Nov;136(1):19-24. Epub 2006 Sep 15.
Lee ES, Pevec WC, Link DP, Dawson DL. Use of T-Stat to predict colonic ischemia during and after endovascular aneurysm repair: a case report. J Vasc Surg. 2008 Mar;47(3):632-4.
Additional Information
Information obtained from ClinicalTrials.gov on July 02, 2009
Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00671203
Study ID Number: AAA-002
ClinicalTrials.gov Identifier: NCT00671203
Health Authority: United States: Food and Drug Administration
Clinical Trials Authorship and Review
Clinical Trials content is provided directly by the U.S. National Institutes of Health via ClinicalTrials.gov and is not reviewed separately by ClinicalTrialsFeeds.org. Every page of specific clinical trials information contains a unique identifier which can be used to find further details directly from the National Institutes of Health.
