Table 2. Demographic and clinical characteristics of patients at the time of procedures.
| Characteristics | |
|---|---|
| Sex | |
| Male | 1129 (54.5) |
| Female | 942 (45.5) |
| Body weight (kg) | 26.2±20.5 |
| Age, median year (range) | 5.5 (0-59) |
| <1 month | 79 (3.8) |
| 1 month-<12 months | 297 (14.3) |
| 1 year-<8 years | 862 (41.6) |
| 8 years-<15 years | 405 (19.6) |
| 15 years-<20 years | 201 (9.7) |
| ≥20 years | 227 (11.0) |
| CHD severity | |
| Mild | 221 (10.7) |
| Moderate | 1115 (53.8) |
| Severe | 735 (35.5) |
| Antithrombotic agents | |
| No | 1651 (79.7) |
| Anti-platelet agents | 313 (15.1) |
| Anti-coagulation | 107 (5.2) |
| Admission ward | |
| General ward | 1899 (91.7) |
| ICU | 172 (8.3) |
| Sedation | |
| No | 399 (19.3) |
| IV sedation | 1474 (71.1) |
| General anesthesia | 198 (9.6) |
| Final number of catheterization | |
| 1 | 1303 (80.9) |
| 2 | 1303 (80.9) |
| 3 | 44 (2.7) |
| ≥4 | 32 (2.1) |
| Intervention | |
| No | 1278 (61.7) |
| Yes | 793 (38.3) |
| Myocardial biopsy | 63 |
| Balloon dilatation | 237 |
| Balloon valvuloplasty | 99 |
| Aortic valve | 4 |
| Pulmonic valve | 95 |
| Septostomy | 22 |
| Coil implantation | 156 |
| Device implantation | 204 |
| PDA | 116 |
| ASD | 80 |
| Others | 8 |
| Stent insertion | 23 |
| Stent dilation | 6 |
| Other intervention | 2 |
| Procedure time (min) | 57.4±31.6 |
| Fluoroscopy time (min) | 17.2±12.5 |
| Amount of contrast dye (cc/kg) | 2.5±1.7 |
| Complication | |
| No | 1757 (84.8) |
| Yes | 314 (15.2) |
Values are n (%) or mean±standard deviation. CHD severity according to the Task Force 1 of the 32nd Bethesda Conference of the American College of Cardiology in 2001.11) CHD: congenital heart disease, ICU: intensive care unit, IV: intravenous, PDA: patent ductus arteriosus, ASD: atrial septal defect