Post-occlusional hyperemia for fractional flow reserve assessment and pull-back curve analysis

Cardiovascular Intervention and Therapeutics
Tetsuo HirataHitoshi Matsuo

Abstract

Balloon occlusion is a potential method for inducing hyperemia to measure post-percutaneous coronary intervention (PCI) fractional flow reserve (FFR). The objective of this study was to determine the clinical usefulness of post-occlusional hyperemia. FFRs measured using post-occlusional hyperemia caused by 30 (FFRoccl30) and 60 s (FFRoccl60) of balloon occlusion after PCI were compared in 60 lesions from 60 patients. The duration of hyperemia was also measured. There was a strong correlation between FFRoccl30 and FFRoccl60 (r = 0.969, p < 0.01). The duration of hyperemia was significantly longer with FFRoccl60 than with FFRoccl30 (68 ± 23 vs. 37 ± 15 s, p < 0.01). The time required for pullback curve analysis was around 45 s. However, in 7 (12%) cases, the duration of hyperemia with FFRoccl60 was < 45 s, which was not enough for pull-back curve analysis. To predict the duration of hyperemia with FFRoccl60 ≥ 45 s, the receiver operating characteristic curve analysis revealed a cut-off value of 25 s of hyperemia with FFRoccl30. FFRoccl30 is sufficient for diagnostic purposes. FFRoccl60 is suitable for pull-back curve analysis in select cases based on predictions made using the duration of hyperemia with FFRoccl30.

References

Dec 1, 1960·The American Journal of Physiology·J D COFFMAN, D E GREGG
Sep 11, 2009·Anesthesiology·Holger K Eltzschig
Apr 13, 2011·The American Journal of Cardiology·Chang-Wook NamWilliam F Fearon
Nov 28, 2013·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Arnold H SetoMorton J Kern
Apr 9, 2016·Journal of the American College of Cardiology·Yuhei KobayashiUNKNOWN FAME Study Investigators
Aug 28, 2016·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Stylianos A PyxarasWilliam Wijns
Dec 17, 2017·Circulation. Cardiovascular Interventions·Yoshiaki KawaseHitoshi Matsuo

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Citations

Sep 6, 2019·Circulation Journal : Official Journal of the Japanese Circulation Society·Hideki Ishii, Toyoaki Murohara
Jul 20, 2021·Journal of the American Heart Association·Haseong ChangJoo Myung Lee
Jul 20, 2021·Circulation Journal : Official Journal of the Japanese Circulation Society·Nobuhiro Tanaka

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