Table I.
Characteristics of children with and without post-thrombotic syndrome (PTS)
| PTS (n = 40) |
No PTS (n = 22) |
p value | |
|---|---|---|---|
| Demographics | |||
| Age at enrollment (years) | 8.2 (4.4–11.4) | 6.1 (3.1–9.8) | 0.32 |
| Male | 24 (60.0) | 14 (63.6) | 0.78 |
| Race | 0.15 | ||
| White | 26 (65.0) | 14 (63.6) | |
| Black | 3 (7.5) | 5 (22.7) | |
| Others/refused | 11 (27.5) | 3 (13.6) | |
| Medical History | |||
| Cardiac diagnosis | 0.76 | ||
| Right-sided obstruction | 12 (30.0) | 8 (36.4) | |
| Left-sided obstruction | 6 (15.0) | 3 (13.6) | |
| Shunt | 7 (17.5) | 6 (27.3) | |
| Single ventricle | 10 (25.0) | 3 (13.6) | |
| Others | 5 (12.5) | 2 (9.1) | |
| Cyanotic congenital heart disease | 22 (55.0) | 7 (31.8) | 0.08 |
| Number of catheterizations | 2 (1–3) | 1 (1–3) | 0.55 |
| Cardiac surgery | 28 (70.0) | 13 (59.1) | 0.39 |
| History of deep venous thrombosis | 5 (12.5) | 3 (13.6) | 0.90 |
| History of catheterization of the femoral artery | 32 (80.0) | 15 (68.2) | 0.32 |
| Use of antithrombotic agents at any time after catheterization | 18 (45.0) | 8 (36.4) | 0.51 |
| Data from First Cardiac Catheterization | |||
| Age at catheterization (years) | 0.3 (0.2–1.3) | 0.3 (0.1–3.2) | 0.83 |
| Time since catheterization (years) | 5.7 (3.5–9.4) | 4.6 (2.7–8.5) | 0.26 |
| Weight (kg)a | 5.8 (4.6–8.7) | 5.1 (3.9–15) | 0.83 |
| Hemoglobin (g/dL)a | 11.3 (10.0–13.0) | 11.0 (9.7–12.6) | 0.43 |
| Cardiac index (L/min/m2)a | 3.2 (2.6–4.2) | 4.2 (3.7–5.0) | 0.02 |
| Mean central venous pressure (mmHg)a | 7.5 (5–8) | 6 (5–8) | 0.08 |
Data are presented as median (interquartile range) or count (%).
a)
A total of 7 to 15 children had missing data.