Research Article

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 1

Baseline characteristics of all patients and comparison between those with and without calcified nodule.

CharacteristicsAll patients (N = 200)CN (n = 87)Non-CN (n = 113)

Age (years)72.5 ± 9.472.7 ± 10.172.4 ± 8.80.832
Male gender106 (53.0%)48 (55.2%)58 (51.3%)0.589
Diabetes mellitus113 (56.5%)53 (60.9%)60 (53.1%)0.269
Hypertension193 (96.5%)87 (100.0%)106 (93.8%)0.019
Dyslipidemia150 (75.0%)64 (73.6%)86 (76.1%)0.681
Chronic kidney disease87 (43.5%)36 (41.4%)51 (45.1%)0.596
Hemodialysis20 (10.0%)6 (6.9%)14 (12.4%)0.199
Prior MI43 (21.5%)17 (19.5%)26 (23.0%)0.554
Prior PCI17 (8.5%)7 (8.0%)10 (8.8%)0.840
Prior CABG16 (8.0%)7 (8.0%)9 (8.0%)0.983
Current smoker9 (4.5%)5 (5.7%)4 (3.5%)0.506
LVEF (%)61 (46, 69)62 (47, 70)61 (46, 67)0.592
LVEF <30%8 (4.3%)3 (3.7%)5 (4.7%)1.000
Atrial fibrillation25 (12.5%)10 (11.5%)15 (13.3%)0.706
Clinical presentation
 CCS154 (77.0%)64 (73.6%)90 (79.6%)0.311
 ACS46 (23.0%)23 (26.4%)23 (20.4%)
Medication at discharge
 Aspirin199 (99.5%)87 (100.0%)112 (99.1%)1.000
 P2Y12 inhibitors
  Clopidogrel166 (83.0%)74 (85.1%)92 (81.4%)
  Ticagrelor29 (14.5%)11 (12.6%)18 (15.9%)0.563
  Prasugrel4 (2.0%)1 (1.1%)3 (2.7%)
 Oral anticoagulant19 (9.5%)7 (8.0%)12 (10.6%)0.538
 Statin195 (97.5%)84 (96.6%)111 (98.2%)0.655

Data presented as frequency and percentage, mean ± standard deviation, or median and interquartile range. A value<0.05 indicates statistical significance. CN, calcified nodule; MI, myocardial infarction; PCI, percutaneous coronary intervention; CABG, coronary artery bypass graft; LVEF, left ventricular ejection fraction; CCS, chronic coronary syndrome; and ACS, acute coronary syndrome.