Tracheobronchial ulceration

Rarer complications of plastic tube stents include tracheobronchial ulceration with secondary hemorrhage, perforation of the tracheobronchial wall with secondary mediastinitis and septic shock, tumor overgrowth at the proximal or distal stent margin. 

All subjects exhibited dyspnea, cough, bronchospasm. Other effects included irritation of the eyes and throat, headache, abdominal pain, vomiting, giddiness. 5 subjects had cyanosis, X rays showed cases of patchy infiltrates, hilar congestion. Pulmonary function was affected in most subjects bronchoscopy revealed tracheobronchial mucosal irritation. Some subjects had hemorrhagic spots, erosions, ulcers. In a follow-up of 16 patients for 1 yr, 4 reported... 

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