Residual Right Coronary Artery Stenosis after Left Main Coronary Artery Intervention Increased the 30-Day Cardiovascular Death and 3-Year Right Coronary Artery Revascularization Rate
Table 2
Angiographic and procedure outcome between the two groups.
Without RCA intervention (n = 61)
With RCA intervention (n = 174)
value
SYNTAX score values
33.96 ± 11.52
33.26 ± 9.65
0.523
≤22
7 (11.5%)
14 (8%)
0.419
23–32
27 (44.3%)
73 (42.0%)
0.754
≥33
27 (44.3%)
87 (50.0%)
0.440
Number of diseased vessels
2.80 ± 0.40
2.83 ± 0.42
0.626
LM with single vessel
0 (0%)
3 (1.8%)
0.571
LM with two vessels
12 (20.3%)
23 (13.5%)
0.223
LM with triple vessels
49 (80.3%)
148 (85.1%)
0.388
PCI procedure
BMS at LM
16 (26.2%)
35 (20.1%)
0.319
IVUS-guided
38 (62.3%)
126 (72.4%)
0.139
Total stent number in LM
1.31 ± 0.47
1.28 ± 0.49
0.681
Single stent
42 (68.9%)
128 (73.6%)
0.479
Two stents
19 (31.1%)
43 (24.7%)
0.326
Three stents
0 (0%)
3 (1.7%)
0.570
Two stent technique
SKS
1 (1.6%)
2 (1.1%)
1.000
Crushed
3 (4.9%)
4 (2.3%)
0.380
T-stent
6 (9.8%)
23 (13.2%)
0.489
Culottes
9 (14.8%)
17 (9.8%)
0.286
RCA vessel classification
Multiple lesions
39 (63.9%)
92 (52.9%)
0.134
Lesion numbers (median)
2 (1–2.5)
2 (1-2)
0.055
Focal disease
14 (23.0%)
27 (15.5%)
0.188
Tubular disease
5 (8.2%)
27 (15.5%)
0.151
Diffuse disease
42 (68.9%)
120 (69.0%)
0.987
RCA lesion locations
Primary
29 (47.5%)
94 (54.0%)
0.383
Mid
31 (50.8%)
83 (47.7%)
0.675
Distal
27 (44.3%)
71 (40.8%)
0.637
Data are presented as the mean ± standard deviation, n (%), and median (IQR). Fisher’s exact test. BMS = bare-metal stent; IVUS = intravascular ultrasound; LM = left main; PCI = percutaneous coronary intervention; RCA = right coronary artery; and SKS = simultaneous kissing-stents.
