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Chapter 39. Special Considerations: Small Vessel and Diffuse Disease

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Independent predictors of underestimating the true coronary vessel size based on a disparity between intravascular ultrasound (IVUS)–determined reference lumen diameter and coronary angiography include all of the following except:

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A. Diabetes

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B. Proximal left anterior descending artery (LAD) lesion location

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C. Coronary calcification

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D. Diffuse disease

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The correct answer is C

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True or false? Small vessel size has been associated with higher restenosis rates. However, equally expanded stents (equal minimum stent area) in different-sized arteries have equivalent restenosis risk.

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A. True

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B. False

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The correct answer is B

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True or false? For calcified small coronary lesions, prestent atherectomy has been associated with lower restenosis rate.

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A. True

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B. False

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The correct answer is B

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True or false? Compared to bare metal stents, percutaneous transluminal coronary angioplasty has a higher rate of target lesion revascularization.

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A. True

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B. False

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The correct answer is B

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True or false? Compared to drug-eluting stents, bare metal stents in small vessels have a lower incidence of negative remodeling over the first year.

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A. True

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B. False

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The correct answer is A

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The use of bioresorbable scaffolds in small vessels has been associated with higher stent thrombosis compared to metallic second-generation drug-eluting stents in vessels smaller than which size?

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A. 2.5 mm

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B. 2.75 mm

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C. 3.0 mm

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D. 3.25 mm

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The correct answer is A

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