CT-angiographic Follow up of Patients That Underwent Coronary Bypass Surgery Between 1993-1997
NCT ID: NCT01686100
Last Updated: 2012-09-19
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
52 participants
INTERVENTIONAL
2010-06-30
2011-11-30
Brief Summary
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The "no-touch" technique was developed by Professor Domingos Souza at the Department of Cardiovascular and Thoracic Surgery, Örebro University Hospital. This technique includes taking out the vein with its surrounding tissue and by this way the vessel is less damaged. The first two follow ups have shown that no-touch grafts had better patency than conventionally extracted graft at 18 months and 8.5 years.
This long term follow up is a continuation of the randomized trial started in 1993 where the patency and incidence of stenoses in the no touch and conventional vein grafts has been studied.
Detailed Description
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Conditions
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Keywords
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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No touch vein grafts
The grafts were harvested with there surrounding tissues.
No touch technique
The vein graft is harvested with its surronding tissues.
Conventional vein grafts.
The grafts were stripped from surrounding tissue.
Conventional technique
The vein graft is stripped from its surrounding tissues.
Interventions
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No touch technique
The vein graft is harvested with its surronding tissues.
Conventional technique
The vein graft is stripped from its surrounding tissues.
Eligibility Criteria
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Inclusion Criteria
2. Included in the previous follow up studies
3. Signed and dated consent.
Exclusion Criteria
2. Renal failure
3. Uncontrolled diabetes
4. Unable to implement the study according to protocol -
ALL
No
Sponsors
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Örebro County Council
OTHER_GOV
Responsible Party
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Ninos Samano M.D.
Doctor
Locations
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Department for Cardiovascular and Thoracic Surgery, Örebro University Hospital
Örebro, , Sweden
Countries
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References
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Souza DS, Johansson B, Bojo L, Karlsson R, Geijer H, Filbey D, Bodin L, Arbeus M, Dashwood MR. Harvesting the saphenous vein with surrounding tissue for CABG provides long-term graft patency comparable to the left internal thoracic artery: results of a randomized longitudinal trial. J Thorac Cardiovasc Surg. 2006 Aug;132(2):373-8. doi: 10.1016/j.jtcvs.2006.04.002.
Loesch A, Dashwood MR, Souza DS. Does the method of harvesting the saphenous vein for coronary artery bypass surgery affect venous smooth muscle cells? iNOS immunolabelling and ultrastructural findings. Int J Surg. 2006;4(1):20-9. doi: 10.1016/j.ijsu.2005.11.002. Epub 2006 Jan 3.
Dashwood MR, Dooley A, Shi-Wen X, Abraham DJ, Dreifaldt M, Souza DS. Perivascular fat-derived leptin: a potential role in improved vein graft performance in coronary artery bypass surgery. Interact Cardiovasc Thorac Surg. 2011 Feb;12(2):170-3. doi: 10.1510/icvts.2010.247874. Epub 2010 Nov 3.
Dreifaldt M, Souza DS, Loesch A, Muddle JR, Karlsson MG, Filbey D, Bodin L, Norgren L, Dashwood MR. The "no-touch" harvesting technique for vein grafts in coronary artery bypass surgery preserves an intact vasa vasorum. J Thorac Cardiovasc Surg. 2011 Jan;141(1):145-50. doi: 10.1016/j.jtcvs.2010.02.005. Epub 2010 Apr 9.
Johansson BL, Souza DS, Bodin L, Filbey D, Loesch A, Geijer H, Bojo L. Slower progression of atherosclerosis in vein grafts harvested with 'no touch' technique compared with conventional harvesting technique in coronary artery bypass grafting: an angiographic and intravascular ultrasound study. Eur J Cardiothorac Surg. 2010 Oct;38(4):414-9. doi: 10.1016/j.ejcts.2010.02.007. Epub 2010 Apr 1.
Johansson BL, Souza DS, Bodin L, Filbey D, Bojo L. No touch vein harvesting technique for CABG improves the long-term clinical outcome. Scand Cardiovasc J. 2009 Feb;43(1):63-8. doi: 10.1080/14017430802140104.
Rueda Fd, Souza D, Lima Rde C, Menezes A, Johansson B, Dashwood M, The E, Gesteira M, Escobar M, Vasconcelos F. Novel no-touch technique of harvesting the saphenous vein for coronary artery bypass grafting. Arq Bras Cardiol. 2008 Jun;90(6):356-62. doi: 10.1590/s0066-782x2008000600002. English, Portuguese.
Dashwood MR, Savage K, Dooley A, Shi-Wen X, Abraham DJ, Souza DS. Effect of vein graft harvesting on endothelial nitric oxide synthase and nitric oxide production. Ann Thorac Surg. 2005 Sep;80(3):939-44. doi: 10.1016/j.athoracsur.2005.03.042.
Dashwood M, Anand R, Loesch A, Souza D. Surgical trauma and vein graft failure: further evidence for a role of ET-1 in graft occlusion. J Cardiovasc Pharmacol. 2004 Nov;44 Suppl 1:S16-9. doi: 10.1097/01.fjc.0000166222.50346.c6.
Souza DS, Dashwood MR, Tsui JC, Filbey D, Bodin L, Johansson B, Borowiec J. Improved patency in vein grafts harvested with surrounding tissue: results of a randomized study using three harvesting techniques. Ann Thorac Surg. 2002 Apr;73(4):1189-95. doi: 10.1016/s0003-4975(02)03425-2.
Tsui JC, Souza DS, Filbey D, Karlsson MG, Dashwood MR. Localization of nitric oxide synthase in saphenous vein grafts harvested with a novel "no-touch" technique: potential role of nitric oxide contribution to improved early graft patency rates. J Vasc Surg. 2002 Feb;35(2):356-62. doi: 10.1067/mva.2002.121072.
Tsui JC, Souza DS, Filbey D, Bomfim V, Dashwood MR. Preserved endothelial integrity and nitric oxide synthase in saphenous vein grafts harvested by a 'no-touch' technique. Br J Surg. 2001 Sep;88(9):1209-15. doi: 10.1046/j.0007-1323.2001.01855.x.
Souza DS, Christofferson RH, Bomfim V, Filbey D. "No-touch" technique using saphenous vein harvested with its surrounding tissue for coronary artery bypass grafting maintains an intact endothelium. Scand Cardiovasc J. 1999;33(6):323-9. doi: 10.1080/14017439950141362.
Souza D. A new no-touch preparation technique. Technical notes. Scand J Thorac Cardiovasc Surg. 1996;30(1):41-4. doi: 10.3109/14017439609107239. No abstract available.
Samano N, Geijer H, Liden M, Fremes S, Bodin L, Souza D. The no-touch saphenous vein for coronary artery bypass grafting maintains a patency, after 16 years, comparable to the left internal thoracic artery: A randomized trial. J Thorac Cardiovasc Surg. 2015 Oct;150(4):880-8. doi: 10.1016/j.jtcvs.2015.07.027. Epub 2015 Jul 15.
Johansson B, Samano N, Souza D, Bodin L, Filbey D, Mannion JD, Bojo L. The no-touch vein graft for coronary artery bypass surgery preserves the left ventricular ejection fraction at 16 years postoperatively: long-term data from a longitudinal randomised trial. Open Heart. 2015 Mar 24;2(1):e000204. doi: 10.1136/openhrt-2014-000204. eCollection 2015.
Other Identifiers
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102841
Identifier Type: -
Identifier Source: org_study_id