Table 2.
Peri‐ and postoperative results of patients with primary mediastinal cysts
| Variables | Group I (N = 183) | Group II (N = 60) | Group III (N = 39) | F‐value | P‐value |
|---|---|---|---|---|---|
| Operation time (mean ± SD, range) | 102.5 ± 37.6 (40.0–250.0) | 103.3 ± 37.8 (25.0–190.0) | 100.5 ± 58.4 (40.0–360.0) | 0.055 | 0.947 |
| Blood loss (mean ± SD, range) | 49.5 ± 58.9 (5.0–500.0) | 57.2 ± 71.8 (10.0–450.0) | 58.3 ± 130.3 (5.0–600.0) | 0.376 | 0.687 |
| Adhesions around the cyst (%) | 53 (29.0%) | 21 (35.0%) | 14 (35.9%) | 0.612 | 0.543 |
| Surgery‐related complications (%) | 2 (1.1%) | 4 (6.7%) | 2 (5.1%) | 1.355 | 0.260 |
| Esophageal injury | 0 | 2 | 2 | ||
| Tracheal injury | 0 | 2 | 0 | ||
| Pericardial injury | 2 | 0 | 0 | ||
| Incomplete excision of the cyst wall (%) | 0 | 7 (11.7%) | 0 | 14.504 | <0.001 |
| Chest tube duration (median, IQR) | 3 (2–3) | 2 (2–3) | 2 (1–3) | 1.866 | 0.157 |
| Duration of hospital stay (median, IQR) | 4 (4–6) | 4 (3–5) | 4 (3–5) | 1.907 | 0.150 |
| Postoperative complications (%) | 9 (4.9%) | 4 (6.7%) | 3 (7.7%) | 0.299 | 0.742 |
| Arrhythmia | 5 | 1 | 1 | ||
| Pneumonia | 2 | 1 | 1 | ||
| Prolonged air leakage (≥7 days) | 0 | 1 | 0 | ||
| Chylothorax | 2 | 1 | 1 | ||
| Surgical approaches by VATS | 17.615 | <0.001 | |||
| Biportal | 18 | 14 | 18 | ||
| Triportal | 164 | 45 | 19 | ||
| Conversion of surgical approach | 1 | 1 | 2 | 1.916 | 0.149 |
| Recurrence/follow‐up patients | 0/159 | 0/42 | 0/29 |
Group I: Patients with anterior mediastinal cyst. Group II: Patients with middle mediastinal cyst. Group III: Patients with posterior mediastinal cyst. IQR, interquartile range; SD, standard deviation.