Stents and Stenosis

Stringy mucus secretion on the end of a silicone stent in the left bronchus. Due to the anatomical diameter of this bronchus, the 13mm stents are very appropriate for the left source.

“Punctiform” light in a tracheal stenosis after intubation. The small diameter of the light produces a distressing situation for the patient; only tolerable because the length of the narrowness is also very short, thus relieving the airflow resistance through the narrow orifice.

A cutting “loop” about to act on the fibrous arch of a tracheal stenosis.

Incrustation of secretions in the walls of a bronchial stent. This drawback is presented with a variable frequency and often the microbial flora is coincident with the one that exists in the dental pieces in poor condition of the patient.

After a year of implantation, this stent has migrated and now, free, rests in the intrathoracic trachea, as seen in the center and the bottom of the image. In the foreground the stenosis presents a wide light, with its two fibrous arches that give it a stable and consolidated appearance. Alejandro Posadas Hospital

This tracheal stent remains very close to the chordal movement without making contact with them.

Retention of secretions inside this stent, aggravated by the reduction of the light produced by the presence of the distal granuloma observed at the bottom of the image. This indicates contact of the prosthesis with the mucosa, excessive cough, or both.

The distal end of this stent rests very close to a spur in the lower lobe. The maximum expiration can reduce the distance between both and allow contact between the stent and the spur, producing an irritative cough that is difficult to suppress, with possible damage to the bronchial mucosa.

Stent implanted in intermediate bronchus. Note the uneven widening of the spur of the right upper lobe.