Table S3. Complications and clinical outcomes according to each type.
| Variables | Subglottic type (n=28) | Stoma type (n=31) | Cuff type (n=18) | Tip type (n=22) |
|---|---|---|---|---|
| Acute complications* | ||||
| Vocal cord dysfunction | 3 (10.7) | 0 | 0 | 0 |
| Respiratory distress | 1 (3.6) | 1 (3.2) | 1 (5.6) | 0 |
| Excessive bleeding | 0 | 1 (3.2) | 1 (5.6) | 0 |
| Pneumothorax | 0 | 0 | 0 | 0 |
| Chronic complications* | ||||
| Granulation tissue overgrowth | 15 (53.6) | 12 (38.7) | 7 (38.9) | 9 (40.9) |
| Mucostasis | 15 (53.6) | 13 (41.9) | 6 (33.3) | 7 (31.8) |
| Stent migration† | 9/23 (39.1) | 4/22 (18.2) | 5/10 (50.0) | 4/12 (33.3) |
| Restenosis‡ | 3/12 (25.0) | 3/13 (23.1) | 1/5 (20.0) | 1/4 (25.0) |
| Duration of follow-up after first treatment (months) | 29 (11–60) | 19 (10–45) | 14 (4–33) | 21 (8–49) |
| Duration of follow-up after last treatment (months) | 14 (2–34) | 10 (2–22) | 5 (1–17) | 4 (0–27) |
| Clinical outcomes | ||||
| Permanent tracheostomy | 3 (10.7) | 8 (25.8) | 9 (50.0) | 11 (50.0) |
| Surgical management | 2 (7.1) | 2 (6.5) | 1 (5.6) | 0 |
| Mortality | 1 (3.6) | 2 (6.5) | 2 (11.1) | 1 (4.5) |
| Disease related | 0 | 2 (6.5) | 2 (11.1) | 0 |
| Procedure related | 1 (3.6) | 0 | 0 | 1 (4.5) |
| Successful intervention without stenting | 3 (10.7) | 3 (9.7) | 2 (11.1) | 2 (9.1) |
| Stent insertion | 23 (82.1) | 22 (71.0) | 10 (55.6) | 12 (54.5) |
| Successful stent removal | 7/23 (30.4) | 9/22 (40.9) | 3/10 (30.0) | 3/12 (25.0) |
| Persistent stent placement | 12/23 (52.2) | 8/22 (36.4) | 3/10 (30.0) | 5/12 (41.7) |
| Successful removal of tracheostomy tube§ | 22 (78.6) | 20 (64.5) | 8 (44.4) | 10 (45.5) |
| Successful removal of airway prosthesis¶ | 10 (35.7) | 12 (38.7) | 5 (27.8) | 5 (22.7) |
Data are presented as n (%) or median (IQR). *, patients could have more than one complication; †, patients who had a stent inserted were used as the denominator; ‡, patients who have ever been removed stent were denominator; ß, patients who survived and maintained airway patency without a tracheostomy tube or surgical management; ∂, patients who survived and maintained airway patency without a tracheostomy tube, silicone stent, or surgical management. IQR, interquartile range.