To evaluate the difference between the tracheal intubation (TI) and rigid bronchoscopy (RB) under general anesthesia on patients with transbronchial cryobiopsy. Comparing the difference between two groups in the operating duration, extubation duration, total anesthesia time, heart rate, blood pressure and arterial blood gas analysis. This is a prospective, randomized, controlled trial.
to evaluate the difference between the tracheal intubation (TI) and rigid bronchoscopy (RB) under general anesthesia on patients with transbronchial cryobiopsy.