Two-Year Outcomes after Left Main Coronary Artery Percutaneous Coronary Intervention in Patients Presenting with Acute Coronary Syndrome
Table 1
Baseline patient characteristics.
Before PSM
After PSM
LMCA
Non-LMCA
value
LMCA
Non-LMCA
value
(n = 155)
(n = 6274)
(n = 150)
(n = 150)
Age
61.91 ± 9.80
58.29 ± 10.41
<0.001
61.96 ± 9.68
60.97 ± 11.02
0.411
Female, n (%)
40 (25.8)
1452 (23.1)
0.438
39 (26.0)
41 (27.3)
0.794
Body mass index, kg/m2
25.58 ± 2.98
25.89 ± 3.20
0.233
25.64 ± 2.98
25.41 ± 3.58
0.545
Risk factors and history, n (%)
Smoker
89 (57.4)
3755 (59.9)
0.542
86 (57.3)
79 (52.7)
0.417
Diabetes
56 (36.1)
1791 (28.5)
0.039
55 (36.7)
52 (34.7)
0.718
Hypertension
92 (59.4)
3993 (63.6)
0.273
89 (59.3)
95 (63.3)
0.477
Hyperlipidemia
101 (65.2)
4125 (65.7)
0.879
98 (65.3)
105 (70.0)
0.388
Prior myocardial infarction
27 (17.4)
828 (13.2)
0.126
26 (17.3)
18 (12.0)
0.192
Prior stroke
20 (12.9)
674 (10.7)
0.392
19 (12.7)
19 (12.7)
1.000
Laboratory tests
Leukocyte, ×109/L
7.22 ± 1.97
7.08 ± 2.10
0.430
7.22 ± 1.97
7.27 ± 2.21
0.828
Platelet, ×109/L
209.97 ± 59.71
208.51 ± 57.02
0.757
209.97 ± 59.71
211.13 ± 58.61
0.865
Hemoglobin, g/L
134.16 ± 14.73
140.83 ± 16.15
<0.001
134.16 ± 14.73
134.73 ± 15.71
0.745
Creatinine, μmol/L
76.55 ± 18.90
76.03 ± 16.41
0.697
76.40 ± 18.94
76.95 ± 17.96
0.046
GFR, ml/min
87.71 ± 16.22
91.03 ± 15.54
0.009
87.79 ± 16.36
88.29 ± 17.44
0.799
LVEF, %
62.82 ± 6.95
62.28 ± 7.46
0.375
62.96 ± 6.85
60.83 ± 9.48
0.028
Clinical presentation
STEMI
24 (15.5)
1421 (22.6)
0.035
23 (15.3)
36 (24.0)
0.059
NSTEMI
11 (7.1)
464 (7.4)
0.888
10 (6.7)
12 (8.0)
0.658
UA
120 (77.4)
4389 (70.0)
0.045
117 (78.0)
102 (68.0)
0.051
Medication at discharge, n (%)
Aspirin
154 (99.4)
6185 (98.6)
0.726
149 (99.3)
149 (99.3)
1.000
Clopidogrel
154 (99.4)
6258 (99.7)
0.340
149 (99.3)
149 (99.3)
1.000
Ticagrelor
1 (0.6)
13 (0.2)
0.290
1 (0.7)
1 (0.7)
1.000
β-blockers
146 (94.2)
5575 (88.9)
0.036
142 (94.7)
141 (94.0)
0.803
Calcium channel blockers
80 (51.6)
3121 (49.7)
0.646
76 (50.7)
68 (45.3)
0.355
Nitrates
154 (99.4)
6141 (97.9)
0.382
149 (99.3)
147 (98.0)
0.622
Statins
150 (96.8)
6011 (95.8)
0.552
146 (95.3)
140 (93.3)
0.169
Values are mean ± SD or n (%). GFR = glomerular filtration rate; LVEF = left ventricular ejection fraction; STEMI = ST elevation myocardial infarction; NSTEMI = non-ST elevation myocardial infarction; UA = unstable angina.
