[Applying a rigid curved video laryngoscope in laryngeal microsurgery of patients with difficult laryngeal exposure].

To test the feasibility of a rigid curved video laryngoscope in laryngeal microsurgery of patients with difficult laryngeal exposure. Thirteen patients with difficult laryngeal exposure underwent microlayngeal surgery using a new-design rigid curved video laryngoscope. The clinical data were collected and analyzed. In all of the 13 patients with difficult laryngeal exposure,the fully exposure rate of glottis was 100% using a new-design rigid curved laryngoscope.But only 7 precise surgeries using our rigid curved instruments were completed successfully. Rigid curved laryngoscope is a useful tool to in treating patients with difficult laryngeal exposure in microlaryngeal surgery. Satisfactory glottis exposure, magnified surgical field and precise maneuver of the lesions could be achieved. But manipulation of this tool is challenging, which warrants further investigation．.