New Predictors of Early and Late Outcomes after Primary Percutaneous Coronary Intervention in Patients with ST-Segment Elevation Myocardial Infarction and Unprotected Left Main Coronary Artery Culprit Lesion

Table 2

Angiographic and procedural characteristics. Values are mean ± standard deviation, median (inter-quartile range), or number (%). BMS = Bare-Metal Stent, DES = Drug-Eluting Stent, LCA = left coronary artery, LM = Left Main, PCI = percutaneous coronary intervention, RCA = right coronary artery, and TIMI = Thrombolysis in Myocardial Infarction.

Angiographic characteristics	N = 81
Lesion Location
Proximal LM	31 (38.3)
Mid LM	8 (9.9)
Distal LM	42 (51.8)
Pre-procedural TIMI Flow Grade
TIMI 0	11 (13.6)
TIMI 1	8 (9.9)
TIMI 2	18 (22.2)
TIMI 3	44 (54.3)
Rentrop collaterals to LCA	10
Occluded RCA	16 (19.7)
Rentrop collaterals to RCA	11 (13.5)
Extent of coronary artery disease
LM only	25 (30.8)
LM + 1vessel	19 (23.5)
LM + 2 vessels	20 (24.7)
LM + 3 vessels	17 (21)
LM stenosis
70-89%	20 (24.7)
90-99%	49 (60.5)
100%	12 (14.8)
EuroScore II	12.2 (3.88-28.6)
SYNTAX Score I	28 (18-34)
Residual SYNTAX Score	2 (0-11)
SYNTAX Revascularization Index	89.4 (64.3-100)
SYNTAX Score II PCI	43.1±15.7
Procedural characteristics
Bifurcation technique	56 (69.1)
Kissing stents	3 (3.7)
Provisional	49 (60.5)
V stenting	1 (1.2)
T stenting	2 (2.5)
Mini crush	1 (1.2)
BMS	48 (59.3)
DES	33 (40.7)
Post-PCI TIMI Flow
0	0
1	5 (6.2)
2	5 (6.2)
3	71(87.6)
Technical success	76 (92.8)