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Chapter 39. Special Considerations: Small Vessel and Diffuse Disease

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:

A. Diabetes

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

C. Coronary calcification

D. Diffuse disease

The correct answer is C

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.

A. True

B. False

The correct answer is B

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

A. True

B. False

The correct answer is B

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

A. True

B. False

The correct answer is B

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.

A. True

B. False

The correct answer is A

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?

A. 2.5 mm

B. 2.75 mm

C. 3.0 mm

D. 3.25 mm

The correct answer is A

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