Key result
Percutaneous angioscopy detects ~3.7-fold more intravascular thrombi in bypass grafts than angiography.
Why the study?
While angiography remains the diagnostic standard, coronary angioscopy has shown higher sensitivity for complex plaques and thrombi in native arteries, but comparisons in saphenous vein bypass grafts were needed.
Does percutaneous angioscopy improve the detection of complex lesion morphology compared to angiography in patients undergoing angioplasty of saphenous vein coronary bypass grafts?
Population
21 patients undergoing balloon angioplasty of saphenous vein coronary bypass grafts
Comparison
Percutaneous angioscopy vs angiography
Design
Comparative imaging study
Authors
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Raises caution relying on angiography alone for SVG intervention; leaves open angioscopy's role pending outcome trials.
Observational (n=21)
Does percutaneous angioscopy improve the detection of complex lesion morphology compared to angiography in patients undergoing angioplasty of saphenous vein coronary bypass grafts?
Absolute Event Rate: 71% vs 19%
p-value: p=<0.001
Percutaneous angioscopy is significantly more sensitive than angiography for detecting complex lesion morphology, such as thrombi and dissection, in saphenous vein bypass grafts.
White et al. (1993) conducted an observational in Atherosclerotic coronary artery disease with culprit lesions in saphenous vein coronary bypass grafts (n=21). Percutaneous angioscopy vs. Angiography was evaluated on Detection of intravascular thrombi (p=<0.001). Percutaneous angioscopy was superior to angiography for detecting intravascular thrombi (71% vs 19%, p<0.001), dissection (66% vs 9.5%), and friable plaque (52% vs 19%) in bypass grafts.
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