Research Article
Diagnostic Performance of Frequency-Domain Optical Coherence Tomography to Predict Functionally Significant Left Main Coronary Artery Stenosis
Table 1
Baseline clinical and angiographic characteristics of the study population.
| | | Patients (n = 101) | Patients
FFR ≤0.80
(n =
42) | Patients
FFR >0.80
(n =
59) | value |
| | Baseline characteristics | | Age (years) | 63.18 ± 9.8 | 62.38 ± 9.8 | 63.75 ± 9.8 | 0.493 | | Male, n (%) | 60 (59.4) | 24 (57.1) | 36 (61.0) | 0.696 | | Hypertension, n (%) | 56 (55.4) | 19 (45.2) | 37 (62.7) | 0.082 | | Diabetes, n (%) | 34 (33.7) | 18 (42.9) | 16 (27.1) | 0.099 | | Dyslipidemia, n (%) | 76 (75.2) | 30 (71.4) | 46 (78.0) | 0.453 | | Current smoker, n (%) | 59 (58.4) | 22 (52.4) | 37 (62.7) | 0.299 | | Family history, n (%) | 45 (44.6) | 14 (33.3) | 31 (52.5) | 0.056 | | LV ejection fraction (%) | 50.45 ± 9.0 | 50.71 ± 7.9 | 50.25 ± 9.9 | 0.803 | | Acute coronary syndrome, n (%) | 32 (31.7) | 14 (33.3) | 18 (30.5) | 0.961 | | Prior myocardial infarction, n (%) | 9 (9.0) | 5 (12.0) | 4 (6.8) | 0.187 | | Prior coronary intervention, n (%) | 49 (48.5) | 24 (57.1) | 125 (42.4) | 0.143 | | Proximal lesion LM, n (%) | 30 (29.7) | 14 (33.3) | 16 (27.1) | 0.501 |
| | Angiographic characteristics | | Total LM length, mm | 14.23 ± 5.2 | 15.13 ± 5.4 | 13.59 ± 4.9 | 0.142 | | LM lesion length, mm | 3.09 ± 1.4 | 3.57 ± 1.4 | 2.73 ± 1.3 | 0.003 | | LM reference lumen diameter, mm | 3.89 ± 0.7 | 3.92 ± 0.7 | 3.87 ± 0.6 | 0.677 | | LM minimum lumen diameter, mm | 2.09 ± 0.5 | 1.94 ± 0.5 | 2.19 ± 0.4 | 0.010 | | LM % diameter stenosis | 45.74 ± 11.3 | 50.22 ± 10.7 | 42.56 ± 10.6 | 0.001 | | Mean FFR value | 0.83 ± 0.07 | 0.75 ± 0.02 | 0.89 ± 0.03 | <0.001 |
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Values are presented as n (%) or mean ± standard deviation (SD). FFR = fractional flow reserve; LM = left main; LV = left ventricle.
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