Research Article

The 11-Year Prognostic Impact of Chronic Total Occlusion in the Noninfarct-Related Coronary Artery on Patients with Acute Myocardial Infarction

Table 1

Baseline and angiographic characteristics of patients with STEMI or NSTEMI.

VariablesNSTEMI group
N = 630
STEMI group
N = 1652
valueAll
N = 2282

Age57.7 ± 10.0255.0 ± 10.49<0.001
Male504 (80.0%)1420 (85.9%)<0.0011924 (84.3%)
Prior MI303 (48.1%)567 (34.3%)<0.001870 (38.1%)
Prior PCI66 (10.5%)111 (6.7%)0.002703177 (7.7%)
Prior stroke28 (4.4%)57 (3.5%)0.262385 (3.7%)
Diabetes140 (22.2%)323 (19.5%)0.1562463 (20.3%)
Hypertension335 (53.2%)804 (48.7%)0.054261139 (49.9%)
Hyperlipidemia264 (41.9%)711 (43.0%)0.6245975 (42.7%)

Smoking habitsNo smoking history336 (44.5%)845 (51.2%)<0.0011211 (53.1%)
Current smoker229 (48.1%)761 (64.1%)990 (43.4%)
Cessation of smoking35 (7.4%)46 (3.9%)81 (3.5%)

LVEF estimated by echocardiography59.4 % ± 8.48%57.4% ± 8.52%<0.00157.9 (8.56%)

Number of vessels affectedSingle-vessel disease94 (15.7%)439 (28.2%)<0.001533 (23.7%)
Two-vessel disease147 (24.6%)479 (30.8%)626 (27.9%)
Three-vessel disease348 (58.3%)575 (37.0%)923 (41.1%)
Left main plus three-vessel disease8 (1.3%)61 (3.9%)69 (3.1%)

Type of IRA’s lesionType
A21 (3.3%)66 (4.0%)0.204787 (3.8%)
B163 (10.0%)208 (12.6%)271 (11.8%)
B2145 (23.0%)355 (23.9%)540 (23.6%)
C401 (63.7%)982(59.4%)1383 (60.7%)

CTO in the non-IRA165 (26.2%)462 (28.0%)0.3697627 (27.6%)
In-hospital MACCE14 (2.2%)41 (2.5%)0.717755 (2.4%)
In-hospital recurrent AMI6 (1.0%)25 (1.5%)0.300731 (1.4%)
In-hospital TLR10 (1.6%)27 (1.6%)137 (1.6%)

In Table 1, we showed that patients with NSTEMI were younger, were predominantly male, were more active smokers, and had relatively lower left ventricular ejection fraction (LVEF) compared to patients with STEMI.