The Predictive Value of Baseline Target Lesion SYNTAX Score for No-Reflow during Urgent Percutaneous Coronary Intervention in Acute Myocardial Infarction
Table 2
Angiographic characteristics of the target lesions and procedure.
All (n = 528)
Reflow (n = 475)
No-reflow (n = 53)
value
Target vessel location
0.010
LM involved
6 (1.1%)
5 (1.1%)
1 (1.9%)
LAD
224 (42.4%)
196 (41.3%)
28 (52.8%)
LCX
96 (18.2%)
94 (19.8%)
2 (3.8%)
RCA
202 (38.3%)
180 (37.9%)
22 (41.5%)
Initial TIMI 0∼1 flow
290 (54.9%)
248 (52.2%)
42 (79.2%)
<0.001
Lesion length, mm
25.40 ± 13.81
25.08 ± 13.58
28.25 ± 15.54
0.114
Reference vessel diameter, mm
3.13 ± 0.53
3.10 ± 0.53
3.34 ± 0.53
0.002
Severe calcification
9 (1.7%)
8 (1.7%)
1 (1.9%)
1.000
Bifurcation lesion
67 (12.7%)
57 (12.0%)
10 (18.9%)
0.154
Ostial lesion
11 (2.1%)
7 (1.5%)
4 (7.5%)
0.018
TL-SS
7.99 ± 5.64
7.56 ± 5.42
11.78 ± 6.22
<0.001
Radial approach
482 (91.3%)
432 (90.9%)
50 (94.3%)
0.406
Balloon predilation
463 (87.7%)
412 (86.7%)
51 (96.2%)
0.046
Maximum predilation balloon diameter, mm
2.40 ± 0.32
2.39 ± 0.30
2.41 ± 0.42
0.692
Maximum predilation pressure, atm
13.35 ± 4.17
13.17 ± 4.21
14.78 ± 3.58
0.009
Thrombus aspiration
165 (31.3%)
144 (30.3%)
21 (39.6%)
0.166
Stent implantation
489 (92.6%)
444 (93.5%)
45 (84.9%)
0.024
Number of stents per lesion >1 stent implanted
125 (23.7%)
110 (23.2%)
15 (28.3%)
0.403
Total stent length, mm
29.55 ± 14.26
29.15 ± 14.04
33.49 ± 15.93
0.052
Maximum stent diameter, mm
3.18 ± 0.51
3.15 ± 0.50
3.40 ± 0.52
0.003
Balloon postdilation
313 (59.3%)
288 (60.6%)
25 (47.2%)
0.058
Maximum balloon diameter, mm
3.22 ± 0.69
3.21 ± 0.67
3.33 ± 0.79
0.229
Maximum balloon: reference
1.03 ± 0.15
1.03 ± 0.15
1.00 ± 0.18
0.127
Maximum pressure, atm
16.40 ± 3.70
16.39 ± 3.70
16.55 ± 3.77
0.766
Glycoprotein IIb/IIIa inhibitor therapy
116 (22.0%)
104 (21.9%)
12 (22.6%)
0.901
Contrast volume, ml
159.01 ± 77.28
158.60 ± 77.16
162.24 ± 78.96
0.756
IVUS use
8 (1.5%)
7 (1.5%)
1 (1.9%)
0.574
PCI procedural duration, min
39.46 ± 27.14
38.46 ± 27.17
48.38 ± 25.45
0.012
Note. All data are presented as n (%) or mean ± SD. IVUS, intravascular ultrasound; LAD, left anterior descending coronary artery; LCX, left circumflex coronary artery; LM, left main coronary artery; PCI, percutaneous coronary intervention; RCA, right coronary artery; TL-SS, target lesion SYNTAX score. There were 3 target lesions involving proximal LCX without involving LM.
