Characteristics and Pattern of Calcified Nodule and/or Nodular Calcification Detected by Intravascular Ultrasound on the Device-Oriented Composite Endpoint (DoCE) in Patients with Heavily Calcified Lesions Who Underwent Rotational Atherectomy-Assisted Percutaneous Coronary Intervention
Table 2
Lesion and procedure characteristics of all patients and comparison between those with and without calcified nodule.
Characteristics
All patients (N = 200)
CN (n = 87)
Non-CN (n = 113)
Target vessel
Left main
8 (4.0%)
4 (4.6%)
4 (3.5%)
Left anterior descending
145 (72.5%)
60 (69.0%)
85 (75.2%)
0.606
Left circumflex
8 (4.0%)
5 (5.7%)
3 (2.7%)
Right coronary artery
39 (19.5%)
18 (20.7%)
21 (18.6%)
Number of vessel disease
1
45 (22.5%)
16 (18.4%)
29 (25.7%)
2
78 (39.0%)
34 (39.1%)
44 (38.9%)
0.602
3
68 (34.0%)
33 (37.9%)
35 (31.0%)
Left main
9 (4.5%)
4 (4.6%)
5 (4.4%)
Lesion location
Ostial
11 (5.5%)
7 (8.0%)
4 (3.5%)
0.215
Proximal
121 (60.5%)
50 (57.5%)
71 (62.8%)
0.442
Mid
105 (52.5%)
43 (49.4%)
62 (54.9%)
0.445
Distal
12 (6.0%)
6 (6.9%)
6 (5.3%)
0.639
Angiographic moderate to severe calcification
195 (97.5%)
86 (98.9%)
109 (96.5%)
0.390
Moderate
40 (20.0%)
17 (19.5%)
23 (20.4%)
0.583
Severe
155 (77.5%)
69 (79.3%)
86 (76.1%)
Chronic total occlusion lesion
10 (5.0%)
3 (3.4%)
7 (6.2%)
0.518
Ostial lesion
61 (30.5%)
28 (32.2%)
33 (29.2%)
0.650
Bifurcation
64 (32.0%)
28 (32.2%)
36 (31.9%)
0.961
Stent type
Bare metal stent
5 (2.5%)
3 (3.5%)
2 (1.8%)
0.654
Drug-eluting stent
193 (97.5%)
83 (96.5%)
110 (98.2%)
Number of stents
1
96 (48.5%)
42 (48.8%)
54 (48.2%)
0.931
>1
102 (51.5%)
44 (51.2%)
58 (51.8%)
Max stent diameter
3.0 (3.0, 3.5)
3.5 (3.0, 3.5)
3.0 (2.8, 3.5)
0.292
Stent length
38.0 (28.0, 52.0)
36.5 (28.0, 52.0)
38.0 (29.0, 52.0)
0.733
Cutting or scoring balloon
17 (8.5%)
5 (5.7%)
12 (10.6%)
0.221
Max balloon
3.3 (3.0, 3.5)
3.0 (2.8, 3.6)
3.3 (3.0, 3.5)
0.970
Rotational atherectomy
Final burr
1.5 (1.5, 1.8)
1.5 (1.5, 1.8)
1.5 (1.5, 1.8)
0.217
Burr-to-artery ratio
0.49 ± 0.09
0.49 ± 0.10
0.49 ± 0.09
0.740
>1 burr
47 (23.5%)
19 (21.8%)
28 (24.8%)
0.627
Perioperative complications
10 (5.0%)
8 (9.2%)
2 (1.8%)
0.022
Dissection and acute closure
4 (2.0%)
2 (2.3%)
2 (1.8%)
1.000
Perforation
0 (0.0%)
0 (0.0%)
0 (0.0%)
—
Slow flow or IABP
2 (1.0%)
2 (2.3%)
0 (0.0%)
0.188
Myocardial infarction
6 (3%)
6 (6.9%)
0 (0%)
0.006
Cardiac tamponade
0 (0%)
0 (0%)
0 (0%)
—
Cerebral infarction
1 (0.5%)
1 (1.1%)
0 (0%)
0.437
Data presented as frequency and percentage, mean ± standard deviation, or median and interquartile range. A value<0.05 indicates statistical significance. Abbreviations: CN, calcified nodule.
