Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
A Pitfall of Fractional Flow Reserve Associated with the Presence of Collateral Circulation
Satoshi KurisuNaoya MitsubaKen IshibashiYasuko KatoYoshihiro DohiKenji NishiokaYasuki Kihara
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JOURNALS OPEN ACCESS

2011 Volume 50 Issue 22 Pages 2811-2813

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Abstract

An 82-year-old man had a severe stenosis in the proximal left anterior descending artery (LAD) and an intermediate stenosis in the distal right coronary artery (RCA). The territory of mid to distal LAD was perfused via an angiographically well-developed collateral circulation from the distal RCA. Fractional flow reserve (FFR) in the distal RCA was 0.84. After successful coronary intervention for the proximal LAD, repeat FFR in the distal RCA was 0.96. In this case, the severity of the stenosis in the donor artery was overestimated by using FFR due to the presence of well-developed collateral circulation.

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© 2011 by The Japanese Society of Internal Medicine
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