Table 3.

Complications associated with silicon and metallic stents

Potential complications of endotracheal stents	Silicon stent	Uncovered metallic stent	Covered metallic stent
Stent migration	++	–	–
Disruption of mucociliary clearance	++	–	+
Mucous plugging	++	–	+
Recurrent infection	+	+	+
Cough	+	+	+
Granulation tissue formation	+	++	+
Stent Fracture	–	++	+
Fistula formation	+	++	+

++ Very usual, + Usual, – Unusual