[Silicone tracheobronchial endoprosthesis].
Silicone endoprostheses are used to replace loss of support in tracheobronchial cartilage. The main silicone stents are similar to those of the Montgomery T tube, the Westaby, Dumon and Cooper-Hood prostheses. The major indications are malignant tumours and benign stenosis after anastomotic resection or graft. All have in common a degree of narrowing greater than 50%. An initial bronchoscopy enables a precise assessment of the zone to support. The prostheses are then put in place using a rigid bronchoscope. An annual bronchoscopic review is recommended associated with clinical supervision. Their removal is simple even after being in position for a long period. A multicentre study (Marseille, Saint-Etienne, Brescia and Barcelona) report their experience of 1574 prostheses positioned in 1058 patients. The localisation was tracheal (54%), left main bronchus (21%), right main bronchus (18%). The average time in place was 1.2 years for benign tumours(maximum 6.2 years) and four months for malignant tumours (maximum 4.7 years). Complications were rare and included migrations (9.5%), granulomas (7.9%) and obstructions (3.6%). Thanks to their being well tolerated, their simplicity in handling, silicone prostheses are currently an essential choice to re-establish patency of the airways in patients presenting with benign or malignant tracheobronchial pathology.
Dumon
M C
MC
Service de Pneumologie Allergologie et Réanimation Respiratoire du Pr B. Blaive, Hôpital Pasteur, Nice.
Dumon
J F
JF
Perrin
C
C
Blaive
B
B
D001980:Bronchi; D005500:Follow-Up Studies; D006801:Humans; D011474:Prosthesis Design; D019919:Prosthesis Implantation / Q000379:methods; D012828:Silicones; D015607:Stents / Q000009:adverse effects; D014132:Trachea
D012828:Silicones