Frequency of a large drift caused by pressure wire using optical fibers

The frequency of a large pressure signal drift (PDs) caused by pressure wire using optical fibers and its effect on fractional flow reserve (FFR)-based decision-making is not clear. We used pressure wires using optical fibers as “workhorse wires” for 95 consecutive lesions. The wire was normalized a...

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Bibliographic Details
Published in:Cardiovascular intervention and therapeutics 2018-07, Vol.33 (3), p.270-276
Main Authors: Kawase, Yoshiaki, Tanigaki, Toru, Hirakawa, Akihiro, Omori, Hiroyuki, Hirata, Tetsuo, Okamoto, Syuuichi, Ota, Hideaki, Kikuchi, Jun, Okubo, Munenori, Kamiya, Hiroki, Kawasaki, Masanori, Suzuki, Takahiko, Matsuo, Hitoshi
Format: Article
Language:English
Subjects:
Aged
Cardiology
Coronary Angiography - methods
Coronary Stenosis - diagnostic imaging
Coronary Stenosis - physiopathology
Coronary Stenosis - surgery
Coronary Vessels - physiopathology
Coronary Vessels - surgery
Female
Fractional Flow Reserve, Myocardial - physiology
Humans
Interventional Radiology
Male
Medicine
Medicine & Public Health
Middle Aged
Optical Fibers - adverse effects
Original Article
Percutaneous Coronary Intervention - adverse effects
Percutaneous Coronary Intervention - instrumentation
Percutaneous Coronary Intervention - methods
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Summary:The frequency of a large pressure signal drift (PDs) caused by pressure wire using optical fibers and its effect on fractional flow reserve (FFR)-based decision-making is not clear. We used pressure wires using optical fibers as “workhorse wires” for 95 consecutive lesions. The wire was normalized at the tip of the guiding catheter just before performing the percutaneous coronary intervention (PCI) and was used without re-normalization until the end of the PCI. The drift value at the end of the procedures was evaluated. Four per cent ( n  = 4) of patients showed a large drift (PD >3 mmHg). Classification discordance between read-out and PD-corrected FFR values was detected in 8 (8%) measurements in total. The decision changed from FFR ≤0.80 to >0.80 in 7 (7%) measurements and vice versa in 1 (1%) measurement. PD showed no effect on decision-making when the FFR read-out value was 0.82. The frequency of large drifts caused by pressure wires using optical fibers was 4%. However, no case showed decision changes when the FFR gray zone was considered.
ISSN:1868-4300
1868-4297
DOI:10.1007/s12928-017-0481-x