Life-saving muscle flaps in tracheobronchial dehiscence following resection or trauma.

OBJECTIVE

In the presence of acute inflammation and necrosis of the wall, tracheo-bronchial defects are difficult to manage. The absence of adequate vascularization and the contaminated area prevent successful direct re-suturing.

METHODS

In order to restore a sufficient blood supply we used a pedicled latissimus dorsi or a pectoralis major flap that was entered into the thorax after a 10-cm resection of the second rib. A portion of the muscle was fitted into the tracheo/bronchial defect by reinforced sutures. The remaining muscle was sutured to the tissue surrounding the defect. This method was applied in various septic conditions: Bronchial defects; complete dehiscence of the right (n = 6) or left (n = 1) main bronchus at the carinal level following resection for lung cancer (n = 4) or for tuberculous (n = 2) on nontuberculous pleuropneumonia (n = 1). Tracheal defects; (1) destruction of one third of the tracheal circumference involving the cricoid down to the fourth ring following tracheotomy in presence of a septic sternum after intrathoracic goiter and Bechterew's disease; (2) 30% dehiscence of the anastomosis and septic sternum following tracheal resection; (3) Mediastinitis involving tracheal and esophageal wall following a 7 cm long iatrogenous laceration of the intrathoracic trachea.

RESULTS

In one case the latissimus dorsi developed venous stasis on day 2 and was replaced by the pectoralis major muscle which showed uneventful healing. In all other patients the muscle flap resulted in an uneventful closure of the defect and recovery.

CONCLUSIONS

Large, well vascularized, pedicled muscle flaps ensure a safe closure of tracheo-bronchial defects or dehiscences even in presence of gross necrosis and sepsis.