Table 1 Baseline data of 44 patients with acute myocardial infarction due to total unprotected left main occlusion

age

61.1 ± 10.8

65.7 ± 11.9

0.20

Male/female

23 (89%)

16 (89%)

0.97

Hypertension

15 (58%)

11 (61%)

0.82

diabetes mellitus

7 (25%)

6 (33%)

0.54

eGFR(ml/min1.73m²)

60 ± 22

61 ± 25

0.90

LDL level (mmol/L)

3.36 ± 0.87

3.18 ± 0.71

0.53

Cardiogenic shock

9 (35%)

16 (89%)

0.00*

Onset-to-FMC (min)

227 ± 114

210 ± 132

0.69

Collateral perfusion

14 (54%)

4 (22%)

0.04*

Final TIMI 3 flow

18 (69%)

6 (33%)

0.02*

IABP

0.08

 Positioned before PCI

2

5

 Positioned during PCI

22

12

Mechanical ventilation

8 (31%)

9 (50%)

0.20

Thrombus aspiration

7 (27%)

5 (28%)

0.95

RCA severe stenosis

7 (27%)

4 (22%)

0.72

RCA PCI simultaneously

2 (8%)

1 (6%)

0.75

LM site

0.73

 Ostium

-

-

 Body

16

12

 Bifurcation

10

6

Antiplatelet drug

 Clopidogrel

8 (31%)

7 (39%)

0.58

 Ticagrelor

18 (69%)

11 (61%)

 GP IIb/IIIa inhibitors

18 (69%)

13 (72%)

0.83