Long-Term Clinical Outcomes of Unprotected Left Main Percutaneous Coronary Intervention: A Large Single-Centre Experience

Table 2

Baseline lesion and procedure characteristics.

	N = 913
Coronary artery disease extent
Isolated LM	8.0% (73)
LM + 1VD	19.9% (182)
LM + 2VD	35.9% (328)
LM + 3VD	36.1% (330)
Total occluded lesion	4.4% (40)
LM lesion location
Ostium	11.4% (104)
Shaft	5.7% (52)
Bifurcation	82.9% (757)
Main vessel
Reference vessel diameter, mm	3.66 ± 0.46
Lesion length, mm	20.7 ± 15.3
Diameter stenosis, %	83.0 ± 10.7
Side branch
Reference vessel diameter, mm	2.96 ± 0.38
Lesion length, mm	20.3 ± 13.7
Diameter stenosis, %	79.8 ± 13.2
Medina type for bifurcation lesion
0,1,1	4.1% (37)
1,0,0	3.8% (29)
1,0,1	7.9% (60)
1,1,0	46.8% (354)
1,1,1	36.6% (277)
Lesion type
De novo	96.4% (880)
SYNTAX score	24.5 ± 7.4
SYNTAX score ≤ 32	86.3% (788)
SYNTAX score > 32	13.7% (125)
Procedure access
Transradial approach	45.7% (417)
Transfemoral approach	54.3% (496)
Stent type
Bare metal stent	12.0% (110)
Drug-eluting stent	88.0% (803)
1st generation drug-eluting stent	15.0% (137)
2nd generation drug-eluting stent	72.9% (666)
Number of stents per patient	2.15 ± 1.18
Total stent length, mm	32.1 ± 19.3
2-stent strategy	26.5% (242)
Crush	16.3% (149)
T-stent	3.3% (30)
V or kissing stent	5.4% (49)
Culotte	1.5% (14)
Residual SYNTAX score	4.86 ± 6.26
Guidance with IVUS	39.5% (361)
Performed by an experienced operator	83.2% (760)

Experienced operator defined as those performed, at least, 15 LM PCIs per year for, at least, 3 consecutive years.