TY - JOUR
T1 - Intraoperative measurement of fractional flow reserve in off-pump coronary artery bypass
T2 - A pilot study
AU - Chiu, Kuan Ming
AU - Lin, Tzu Yu
AU - Chen, Jer Shen
AU - Huang, Jih Hsin
AU - Chen, Robert Jeen Chen
AU - Chu, Shu Hsun
N1 - Publisher Copyright:
© 2015 Georg Thieme Verlag KG Stuttgart - New York.
PY - 2014/7/17
Y1 - 2014/7/17
N2 - Backgrounds Fractional flow reserve of myocardium (FFRmyo) is a functional study of significant coronary artery stenosis, defined as the ratio of the pressure distal to the stenosis (poststenosis) divided by the pressure of aortic root (prestenosis). Instead of cath laboratory, we could measure it in operating room for off-pump coronary artery bypass (OPCAB) surgery and here shared our methods in the pilot study. Methods and Results We used needles, catheters, and pressure tracing but without guidewires or fluoroscopy to measure FFRmyo during OPCAB. In February 2010, we conducted the pilot study and collected 32 anastomosis data from 10 patients. Without revising the anastomosis plans based on coronary angiographies, 24 FFRmyo of the 32 anastomoses (75%) were less than 0.75, which represented significant functional stenosis. The FFRmyo measurements did not lead to any adverse events. Conclusion The measurement of fractional flow reserve in OPCAB is safe and feasible. It can serve as a functional assessment of coronary artery stenosis in adjuvant to conventional coronary angiography.
AB - Backgrounds Fractional flow reserve of myocardium (FFRmyo) is a functional study of significant coronary artery stenosis, defined as the ratio of the pressure distal to the stenosis (poststenosis) divided by the pressure of aortic root (prestenosis). Instead of cath laboratory, we could measure it in operating room for off-pump coronary artery bypass (OPCAB) surgery and here shared our methods in the pilot study. Methods and Results We used needles, catheters, and pressure tracing but without guidewires or fluoroscopy to measure FFRmyo during OPCAB. In February 2010, we conducted the pilot study and collected 32 anastomosis data from 10 patients. Without revising the anastomosis plans based on coronary angiographies, 24 FFRmyo of the 32 anastomoses (75%) were less than 0.75, which represented significant functional stenosis. The FFRmyo measurements did not lead to any adverse events. Conclusion The measurement of fractional flow reserve in OPCAB is safe and feasible. It can serve as a functional assessment of coronary artery stenosis in adjuvant to conventional coronary angiography.
KW - fractional flow reserve
KW - myocardial revascularization
KW - off-pump coronary artery bypass
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U2 - 10.1055/s-0034-1383815
DO - 10.1055/s-0034-1383815
M3 - Article
C2 - 25032723
AN - SCOPUS:84930821248
SN - 0171-6425
VL - 63
SP - 288
EP - 291
JO - Thoraxchirurgie und vaskulare Chirurgie
JF - Thoraxchirurgie und vaskulare Chirurgie
IS - 4
ER -