Binary restenosis – Cardiology MCQ – Answer

Binary restenosis – Cardiology MCQ – Answer

Binary restenosis after percutaneous intervention (PCI) is  – Correct answer: 1. 50% or more of luminal narrowing at repeat angiogram

Here are some other terms used in the setting of PCI:

“candy-wrapper” angiographic appearance though typical of intracoronary brachytherapy (radiation), has also been described with drug eluting stents [1]. In this both ends of the stented segment are narrow can be due to geographic miss as well.

Late loss of lumen –  Minimal luminal diameter at the end of the procedure minus the minimal luminal diameter at the repeat angiogram, generally at 6 months.

In stent restenosis –  In stent restenosis is often asymptomatic and has to be looked for by exercise ECG. One third of cases of in stent restenosis can present with acute coronary syndrome and is quoted as an indication for routine coronary angiography at 3 to 6 months after unprotected left main stenting.

Geographical miss –  Geographical miss is failure to cover whole of the diseased segment during stenting.

Reference

1. Dominick J Angiolillo, Manel Sabatá, Fernando Alfonso, Carlos Macaya. “Candy wrapper” effect after drug-eluting stent implantation: déjà vu or stumbling over the same stone again? Catheter Cardiovasc Interv. 2004 Mar;61(3):387-91.

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