Two-Year Outcomes after Left Main Coronary Artery Percutaneous Coronary Intervention in Patients Presenting with Acute Coronary Syndrome
Table 2
Coronary angiographic findings and percutaneous interventional therapies.
Before PSM
After PSM
LMCA
Non-LMCA
value
LMCA
Non-LMCA
value
(n = 155)
(n = 6274)
(n = 150)
(n = 150)
SYNTAX score
Before procedure
20.11 ± 9.98
11.34 ± 7.83
<0.001
19.85 ± 9.89
19.89 ± 9.88
0.970
After procedure
2.91 ± 5.29
3.32 ± 5.67
0.368
2.80 ± 5.28
4.49 ± 6.72
0.016
Unprotected LMCA
147 (94.8)
—
—
142 (94.7)
—
—
Trivessel disease, %
21 (13.5)
107 (1.7)
<0.001
13 (8.7)
0 (0)
<0.001
Total occlusion, %
33 (21.3)
1350 (21.5)
0.946
32 (21.3)
64 (42.7)
<0.001
Puncture site, %
Femoral artery
20 (12.9)
431 (6.9)
0.014
20 (13.3)
18 (12.0)
0.558
Radial artery
132 (85.2)
5749 (91.6)
127 (84.7)
131 (87.3)
Other approaches
3 (1.9)
94 (1.5)
3 (2.0)
1 (0.7)
Staged PCI, %
53 (34.2)
570 (9.1)
<0.001
53 (35.3)
55 (36.7)
0.810
IVUS usage, %
71 (45.8)
261 (4.2)
<0.001
71 (47.3)
71 (47.3)
1.000
IABP usage, %
18 (11.6)
81 (1.3)
<0.001
18 (12.0)
18 (12.0)
1.000
Successful PCI, %
152 (98.1)
6166 (98.3)
0.751
148 (98.7)
148 (98.7)
1.000
PTCA only, %
60 (38.7)
1024 (17.1)
<0.001
60 (40.0)
59 (39.3)
Stent type
BMS, %
0 (0)
46 (0.8)
0.285
0 (0)
1 (0.7)
1.000
DES, %
1G-DES
17 (11.0)
1150 (19.2)
0.019
16 (10.7)
13 (8.7)
0.558
2G-DES
59 (38.1)
2706 (45.1)
0.208
57 (38.0)
53 (35.3)
0.632
BP-DES
19 (12.3)
957 (16.0)
0.305
23 (15.3)
17 (11.3)
0.308
Others
0 (0)
88 (1.5)
0.277
0 (0)
1 (0.7)
1.000
Blended multiple DESs
0 (0)
28 (0.5)
1.000
0 (0)
0 (0)
1.000
Values are mean ± SD or n (%). SYNTAX = SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery; LMCA = left main coronary artery; PCI = percutaneous coronary intervention; IVUS = intravascular ultrasound; IABP = intraaortic balloon pump; PTCA = percutaneous transluminal coronary angioplasty; BMS = bare metal stent; DES = drug-eluting stent; 1G = first generation; 2G = second generation; BP = biodegradable polymer.
