Table 1.
Comparison of demographic data and treatment outcomes
| Entire cohort (n = 30) | Stage 1 (n = 15) | Stage 2 (n = 15) | p-value | |
|---|---|---|---|---|
| Sex | 1.0 | |||
| Male | 18 (60.0%) | 9 (60.0%) | 9 (60.0%) | |
| Female | 12 (40.0%) | 6 (40.0%) | 6 (40.0%) | |
| Age at operation (years) | 6.7 (3.5–10.3) | 5.5 (3.1–8.8) | 9.2 (3.5–11.9) | 0.174 |
| Weight (kg) | 23.8 (15.7–41.7) | 20.6 (16.6–34.9) | 40.7 (15.3–50.0) | 0.325 |
| Height (cm) | 120.3 (99.3–142.3) | 119.2 (98.3–135.0) | 137.9 (100.0–146.0) | 0.25 |
| BMI (kg/m2) | 17.7 (15.7–20.2) | 17.3 (15.7–19.2) | 19.0 (16.4–22.1) | 0.217 |
| Indications | 1.0 | |||
| Oncologya | 29 (96.7%) | 15 (100.0%) | 14 (93.3) | |
| Others (general condition)b | 1 (3.3%) | 0 (0.0%) | 1 (6.7%) | |
| Access veins | 1.0 | |||
| Right internal jugular vein | 29 (96.7%) | 15 (100.0%) | 14 (93.3) | |
| Left internal jugular vein | 1 (3.3%) | 0 (0.0%) | 1 (6.7%) | |
| Operator’s position | 0.017 | |||
| Patient’s right side | 6 (20.0%) | 6 (40.0%) | 0 (0.0%) | |
| At the patient’s head | 24 (80.0%) | 9 (60.0%) | 15 (100.0%) | |
| Operative time (min) | 40.5 (24.0–16.0) | 43.0 (40.0–50.0) | 29.0 (20.0–43.0) | 0.007 |
| Complications | 4 (13.3%) | 4 (26.7%) | 0 (0.0%) | 0.1 |
| Follow-up duration (days) | 181.0 (53.0–257.5) | 254.0 (208.0–296.0) | 54.0 (43.0–117.0) | < 0.001 |
Data are presented as median (interquartile range) or number (%)
aLeukemia (11 cases, 37.9%), brain tumors (8 cases, 27.6%), solid tumors (8 cases, 27.6%), and lymphomas (2 cases, 6.9%)
bMitochondrial cytopathy with pneumonia