Clinical Study
Fully Covered Metallic Stents for the Treatment of Benign Airway Stenosis
| | | Shin et al. [12] | Fernandez-Bussy et al. [13] | Dooms et al. [11] | Chen et al. [14] | Marchese et al. [15] | This publication |
| | Airway lesion characteristics | | | | | | | | Benign/malignant | 6/9 | 49//0 | 17/0 | 21/0 | 50/2 | 16/0 | | Location | | | | | | | | Trachea and carina | 7 | 0 | 14 | 21 | 2 | 5 | | Right bronchus | 0 | 20 | 1 | 0 | 14 | 1 | | Left bronchus | 8 | 29 | 2 | 0 | 36 | 10 |
| | Stent characteristics | | | | | | | | Manufacturer | Taewoong | Alveolus | Silmet () | Sigma CZTS | Silmet | Micro-Tech | | Taewoong () | | Alveolus () | | Straight/Y/conical | 17/0/0 | 49/0/0 | 20/0/0 | 27/0/0 | 31/0/21 | 21/0/0 | | Metal type | Nitinol | Nitinol | Nitinol | Stainless steel | Nitinol | Nitinol | | Cover | PTFE | Silicone | Silmet: Silicone | Silastic | Silicone | Silicone | | Taewoong: PTFE | | Alveolus: PU |
| | Correct positioning | 100% (17/17) | 100% (49/49) | 100% (20/20) | 100% (27/27) | 98% (51/52) | 90% (19/21) |
| | Follow-up | 270 days | 7 months | 12 weeks | 5 months | 119 days | 282 days |
| | Complications | | | | | | | | Overall complication rate | 59% (10/17) | 48% (24/49) | 90% (18/20) | 85% (23/27) | 40% (20/52) | 75% (15/20) | | Requiring removal of stent | 41% (7/17) | 39% (19/49) | 80% (16/20) | 22% (6/27) | 15% (7/52) | 57% (12/21) | | Most frequent complications | Sputum retention (23.5%)
Stent migration (17.6%)
Tissue hyperplasia (17.6%) | Granulation (20.4%)
Migration (18.4%)
Fracture (6.1%)
Mucus plugging (4.1%) | Migration (60%)
Wrinkling (10%)
Stent fracture (5%) | Granulation
(18/21 patients, 89%)
Stent migration (6/27 stents, 22%)
Halitosis (6/21 patients, 28%) | Tumor overgrowth (15%)
Stent migration (13.4%)
Granulation (3.8%)
Infection (3%) | Granulation (35%)
Migration (30%)
Sputum retention (17%) |
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PTFE = polytetrafluoroethylene; PU = polyurethane.
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