Cryosurgery for the immediate treatment of acute central airway obstruction.

Central airway obstruction commonly occurs in thoracic malignancies. Treatment is usually palliative but may be significantly challenging. Several endoscopic interventions are available to establish airway patency; however, their use is sometimes limited by certain factors like availability and high oxygen requirement. Cryosurgery has been established as a safe and effective technique for treatment of malignant airway obstruction, but its use has been limited to being adjunctive to other modalities and to low-grade stenosis. This is mainly due to the delayed effect and inability to achieve immediate airway patency. We report the successful use of this technique as stand-alone modality in a tracheal tumor with severe obstruction leading to acute respiratory failure. Immediate recanalization was achieved resulting in rapid resolution of symptoms.