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Published on: November 15, 2013
[Not Available]
Chiu-Fen Yang1, Michael Y Chen2, Mei-Ling Chen1
1Department of Internal Medicine; ; Buddhist Tzu Chi University, Hualien, Taiwan.
Insights
Saphenous vein graft failure after coronary artery bypass surgery can be challenging. This case report demonstrates successfully revascularizing a chronic total occlusion using a failed vein graft as a retrograde conduit.
Area of Science:
- Interventional Cardiology
- Vascular Surgery
Background:
- Saphenous vein graft (SVG) failure is a significant complication following coronary artery bypass surgery (CABG).
- Percutaneous coronary intervention (PCI) for SVG failure can yield suboptimal outcomes.
- Treating chronic total occlusions (CTOs) in native vessels post-CABG presents unique challenges.
Observation:
- A patient with prior CABG experienced recurrent angina due to SVG failure.
- The native CTO lesion was difficult to access via conventional methods.
- Standard retrograde approaches for CTO were not feasible due to absent native collaterals.
Findings:
- A novel retrograde approach was employed, utilizing a totally occluded SVG as a conduit.
- Successful revascularization of the native CTO lesion was achieved.
- This technique circumvented the need for suitable native collateral channels.
Implications:
- This case highlights the potential of using occluded grafts as retrograde conduits for CTO revascularization.
- It offers an alternative strategy when native collaterals are inadequate.
- This approach may improve outcomes for patients with complex coronary artery disease after CABG.
Unlabelled:
Saphenous vein graft (SVG) failure secondary to degeneration can cause significant problems after coronary artery bypass surgery (CABG). Repeat revascularization by percutaneous coronary intervention can be performed after SVG failure but is often associated with less favourable clinical outcome. Treatment for chronic total occlusion (CTO) of native vessels after SVG failure among patients with prior CABG is frequently performed. However, revascularization of CTO vessels in patients with prior CABG may be more complex and require more frequent use of the retrograde approach. Good septal or epicardial collateral channels are usually needed for the retrograde CTO approach. However, suitable native collateral channels may be absent and alternative retrograde routes should be considered. In this case report, we described a patient who had prior CABG and developed recurrent angina after SVG failure. His native CTO lesion was successfully revascularized by using a totally occluded vein graft as a retrograde conduit.
Key Words:
Chronic total occlusions; Coronary artery bypass grafts; Percutaneous coronary intervention; Saphenous vein graft.
