|FFR assessment of number of vessels per patient|
|Lowest FFR location|
|FFR ≤0.80||58 (41)|
|FFR ≤0.75||40 (28)|
|Optimized medical treatment, FFR ≥ 0.80||85 (59)|
|Optimized medical treatment, FFR ≤ 0.80||10 (7)|
|1-vessel PCI||36 (25)|
|2-vessel PCI||5 (4)|
|3-vessel PCI||1 (1)|
Values are n (%). In 4 patients, in whom 2-vessel disease was suspected, FFR was performed only in 1 vessel due to subocclusion of LAD (FFR value in the RCA: 0.76) in 1 patient who subsequently underwent CABG; subocclusion of CX (FFR-value in the LAD: 0.66) in 1 patient who subsequently underwent CABG; severe dyspnea during measurement of FFR in the LAD (FFR value in the LAD: 0.65) with subsequent 2-vessel PCI (LAD/RCA) in 1 patient; and in 1 patient who had a severe proximal RCA lesion treated directly by PCI (FFR value in the LAD: 0.81). In 1 patient who was suspected of having 1-vessel disease, FFR was not performed due to severe spasm during FFR measurement in the RCA (the underlying coronary stenosis was deemed nonsignificant, and the patient was treated medically).
CABG = coronary artery bypass grafting; CX = circumflex coronary artery; LAD = left anterior descending coronary artery; PCI = percutaneous coronary intervention; RCA = right coronary artery; other abbreviations as in Table 3.